[Title 46 CFR ]
[Code of Federal Regulations (annual edition) - October 1, 2002 Edition]
[From the U.S. Government Printing Office]



[[Page i]]



                    46


          Parts 166 to 199

                         Revised as of October 1, 2002

Shipping





          Containing a codification of documents of general 
          applicability and future effect
          As of October 1, 2002
          With Ancillaries
          Published by
          Office of the Federal Register
          National Archives and Records
          Administration

A Special Edition of the Federal Register



[[Page ii]]

                                      




                     U.S. GOVERNMENT PRINTING OFFICE
                            WASHINGTON : 2002



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                            Table of Contents



                                                                    Page
  Explanation.................................................       v

  Title 46:
          Chapter I--Coast Guard, Department of Transportation 
          (Continued)                                                3
  Finding Aids:
      Material Approved for Incorporation by Reference........     531
      Table of CFR Titles and Chapters........................     539
      Alphabetical List of Agencies Appearing in the CFR......     557
      List of CFR Sections Affected...........................     567



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                     ----------------------------

                     Cite this Code:  CFR
                     To cite the regulations in 
                       this volume use title, 
                       part and section number. 
                       Thus, 46 CFR 166.01 refers 
                       to title 46, part 166, 
                       section 01.

                     ----------------------------

[[Page v]]



                               EXPLANATION

    The Code of Federal Regulations is a codification of the general and 
permanent rules published in the Federal Register by the Executive 
departments and agencies of the Federal Government. The Code is divided 
into 50 titles which represent broad areas subject to Federal 
regulation. Each title is divided into chapters which usually bear the 
name of the issuing agency. Each chapter is further subdivided into 
parts covering specific regulatory areas.
    Each volume of the Code is revised at least once each calendar year 
and issued on a quarterly basis approximately as follows:

Title 1 through Title 16.................................as of January 1
Title 17 through Title 27..................................as of April 1
Title 28 through Title 41...................................as of July 1
Title 42 through Title 50................................as of October 1

    The appropriate revision date is printed on the cover of each 
volume.

LEGAL STATUS

    The contents of the Federal Register are required to be judicially 
noticed (44 U.S.C. 1507). The Code of Federal Regulations is prima facie 
evidence of the text of the original documents (44 U.S.C. 1510).

HOW TO USE THE CODE OF FEDERAL REGULATIONS

    The Code of Federal Regulations is kept up to date by the individual 
issues of the Federal Register. These two publications must be used 
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    To determine whether a Code volume has been amended since its 
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the daily Federal Register. These two lists will identify the Federal 
Register page number of the latest amendment of any given rule.

EFFECTIVE AND EXPIRATION DATES

    Each volume of the Code contains amendments published in the Federal 
Register since the last revision of that volume of the Code. Source 
citations for the regulations are referred to by volume number and page 
number of the Federal Register and date of publication. Publication 
dates and effective dates are usually not the same and care must be 
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instances where the effective date is beyond the cut-off date for the 
Code a note has been inserted to reflect the future effective date. In 
those instances where a regulation published in the Federal Register 
states a date certain for expiration, an appropriate note will be 
inserted following the text.

OMB CONTROL NUMBERS

    The Paperwork Reduction Act of 1980 (Pub. L. 96-511) requires 
Federal agencies to display an OMB control number with their information 
collection request.

[[Page vi]]

Many agencies have begun publishing numerous OMB control numbers as 
amendments to existing regulations in the CFR. These OMB numbers are 
placed as close as possible to the applicable recordkeeping or reporting 
requirements.

OBSOLETE PROVISIONS

    Provisions that become obsolete before the revision date stated on 
the cover of each volume are not carried. Code users may find the text 
of provisions in effect on a given date in the past by using the 
appropriate numerical list of sections affected. For the period before 
January 1, 2001, consult either the List of CFR Sections Affected, 1949-
1963, 1964-1972, 1973-1985, or 1986-2000, published in 11 separate 
volumes. For the period beginning January 1, 2001, a ``List of CFR 
Sections Affected'' is published at the end of each CFR volume.

INCORPORATION BY REFERENCE

    What is incorporation by reference? Incorporation by reference was 
established by statute and allows Federal agencies to meet the 
requirement to publish regulations in the Federal Register by referring 
to materials already published elsewhere. For an incorporation to be 
valid, the Director of the Federal Register must approve it. The legal 
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if it were published in full in the Federal Register (5 U.S.C. 552(a)). 
This material, like any other properly issued regulation, has the force 
of law.
    What is a proper incorporation by reference? The Director of the 
Federal Register will approve an incorporation by reference only when 
the requirements of 1 CFR part 51 are met. Some of the elements on which 
approval is based are:
    (a) The incorporation will substantially reduce the volume of 
material published in the Federal Register.
    (b) The matter incorporated is in fact available to the extent 
necessary to afford fairness and uniformity in the administrative 
process.
    (c) The incorporating document is drafted and submitted for 
publication in accordance with 1 CFR part 51.
    Properly approved incorporations by reference in this volume are 
listed in the Finding Aids at the end of this volume.
    What if the material incorporated by reference cannot be found? If 
you have any problem locating or obtaining a copy of material listed in 
the Finding Aids of this volume as an approved incorporation by 
reference, please contact the agency that issued the regulation 
containing that incorporation. If, after contacting the agency, you find 
the material is not available, please notify the Director of the Federal 
Register, National Archives and Records Administration, Washington DC 
20408, or call (202) 523-4534.

CFR INDEXES AND TABULAR GUIDES

    A subject index to the Code of Federal Regulations is contained in a 
separate volume, revised annually as of January 1, entitled CFR Index 
and Finding Aids. This volume contains the Parallel Table of Statutory 
Authorities and Agency Rules (Table I). A list of CFR titles, chapters, 
and parts and an alphabetical list of agencies publishing in the CFR are 
also included in this volume.
    An index to the text of ``Title 3--The President'' is carried within 
that volume.
    The Federal Register Index is issued monthly in cumulative form. 
This index is based on a consolidation of the ``Contents'' entries in 
the daily Federal Register.
    A List of CFR Sections Affected (LSA) is published monthly, keyed to 
the revision dates of the 50 CFR titles.

[[Page vii]]


REPUBLICATION OF MATERIAL

    There are no restrictions on the republication of material appearing 
in the Code of Federal Regulations.

INQUIRIES

    For a legal interpretation or explanation of any regulation in this 
volume, contact the issuing agency. The issuing agency's name appears at 
the top of odd-numbered pages.
    For inquiries concerning CFR reference assistance, call 202-741-6000 
or write to the Director, Office of the Federal Register, National 
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site also contains links to GPO Access.

                              Raymond A. Mosley,
                                    Director,
                          Office of the Federal Register.

October 1, 2002.



[[Page ix]]



                               THIS TITLE

    Title 46--Shipping is composed of nine volumes. The parts in these 
volumes are arranged in the following order: Parts 1-40, 41-69, 70-89, 
90-139, 140-155, 156-165, 166-199, 200-499 and 500 to End. The first 
seven volumes containing parts 1-199 comprise chapter I--Coast Guard, 
DOT. The eighth volume, containing parts 200 to 499, includes chapter 
II--Maritime Administration, DOT and chapter III--Coast Guard (Great 
Lakes Pilotage), DOT. The ninth volume, containing part 500 to End, 
includes chapter IV--Federal Maritime Commission. The contents of these 
volumes represent all current regulations codified under this title of 
the CFR as of October 1, 2002.

    Subject indexes appear in subchapters A--I, I-A, J, K, L, and Q--W 
following the subchapters.

[[Page x]]





[[Page 1]]



                           TITLE 46--SHIPPING




                  (This book contains parts 166 to 199)

  --------------------------------------------------------------------
                                                                    Part

chapter i--Coast Guard, Department of Transportation 
  (Continued)...............................................         166

[[Page 3]]



    CHAPTER I--COAST GUARD, DEPARTMENT OF TRANSPORTATION (CONTINUED)




  --------------------------------------------------------------------

                     SUBCHAPTER R--NAUTICAL SCHOOLS
Part                                                                Page
166             Designation and approval of nautical school 
                    ships...................................           5
167             Public nautical school ships................           6
168             Civilian nautical school vessels............          28
169             Sailing school vessels......................          31

                Index.......................................          85
                 SUBCHAPTER S--SUBDIVISION AND STABILITY
170             Stability requirements for all inspected 
                    vessels.................................          95
171             Special rules pertaining to vessels carrying 
                    passengers..............................         111
172             Special rules pertaining to bulk cargoes....         144
173             Special rules pertaining to vessel use......         157
174             Special rules pertaining to specific vessel 
                    types...................................         168

                Index.......................................         183
      SUBCHAPTER T--SMALL PASSENGER VESSELS (UNDER 100 GROSS TONS)
175             General provisions..........................         191
176             Inspection and certification................         205
177             Construction and arrangement................         224
178             Intact stability and seaworthiness..........         234
179             Subdivision, damage stability, and 
                    watertight integrity....................         242
180             Lifesaving equipment and arrangements.......         248
181             Fire protection equipment...................         260
182             Machinery installation......................         268
183             Electrical installation.....................         288
184             Vessel control and miscellaneous systems and 
                    equipment...............................         297
185             Operations..................................         302
186-187         [Reserved]

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                Index.......................................         317
              SUBCHAPTER U--OCEANOGRAPHIC RESEARCH VESSELS
188             General provisions..........................         330
189             Inspection and certification................         345
190             Construction and arrangement................         360
191-192         [Reserved]

193             Fire protection equipment...................         370
194             Handling, use, and control of explosives and 
                    other hazardous materials...............         383
195             Vessel control and miscellaneous systems and 
                    equipment...............................         392
196             Operations..................................         399

                Index.......................................         413
      SUBCHAPTER V--MARINE OCCUPATIONAL SAFETY AND HEALTH STANDARDS
197             General provisions..........................         424
198             [Reserved]

                Index.......................................         467
          SUBCHAPTER W--LIFESAVING APPLIANCES AND ARRANGEMENTS
199             Lifesaving systems for certain inspected 
                    vessels.................................         473
                Index.......................................         521

[[Page 5]]



                     SUBCHAPTER R--NAUTICAL SCHOOLS





PART 166--DESIGNATION AND APPROVAL OF NAUTICAL SCHOOL SHIPS--Table of Contents




Sec.
166.01  Approval of nautical school ships.
166.05  Course of study for deck students.
166.10  Course of study for engineering students.
166.15  Training for maintenance of discipline; ship sanitation; fire 
          and lifeboat drills.
166.20  Applicants for certificates; when eligible for examination.

    Authority: 46 U.S.C. 2103, 3306, 8105; 46 U.S.C. App. 1295g; 49 CFR 
1.46.

    Source: CGFR 52-43, 17 FR 9542, Oct. 18, 1952, unless otherwise 
noted.



Sec. 166.01  Approval of nautical school ships.

    (a) Under 46 U.S.C. 7315, graduation from a nautical school vessel 
may be substituted for the service requirements for able seaman and 
qualified member of the engine department endorsements or merchant 
mariner's documents.
    (b) It has been made to appear to the satisfaction of the Commandant 
that the school ships operated by the States in which they are located; 
namely, by the California Maritime Academy, Great Lakes Maritime Academy 
at Northwestern Michigan College, Maine Maritime Academy, Massachusetts 
Maritime Academy, New York State Maritime College, and Texas Maritime 
Academy, and by the United States Merchant Marine Academy, the United 
States Naval Academy, and the United States Coast Guard Academy, have 
adopted a course of study for their students complying with the rules 
prescribed by the Commandant, and a system of instruction adequate to 
equip the deck and engineering students theoretically and physically in 
the rudiments of seamanship and navigation necessary to qualify the 
graduates for the rating of ``able seamen'' and in all branches of 
marine engineering necessary to qualify the graduates for the rating of 
``qualified member of the engine department,'' respectively.
    (c) The school ships operated by the State organizations and the 
Federal academies named in paragraph (b) of this section are hereby 
approved and their graduates, if meeting the other qualifications 
required by law and regulations promulgated thereunder, are entitled to 
the rating of able seamen or qualified members of the engine department 
and to be certified as such.
    (d) A graduate of any of those school ships, if meeting the other 
qualifications required by law and regulations promulgated thereunder, 
is also entitled to the rating of lifeboatman and to be certified as 
such.

[CGFR 52-43, 17 FR 9542, Oct. 18, 1952, as amended by CGD 72-92R, 38 FR 
29320, Oct. 24, 1973; CGD 95-028, 62 FR 51216, Sept. 30, 1997]



Sec. 166.05  Course of study for deck students.

    The course of study for deck students shall include (a) all the 
instructions in the rudiments of seamanship and navigation necessary to 
equip the student fully with the theoretical knowledge required for the 
proper discharge of the duties developing upon able seaman; (b) a 
thorough practical training in the mechanics of all operations incident 
to the sailing and management of a vessel insofar as such operations 
form a part of the duties of able seamen.



Sec. 166.10  Course of study for engineering students.

    The course of study for engineering students shall include (a) all 
the instruction necessary to fully equip the student with the 
theoretical knowledge required for the proper discharge of the duties 
developing upon qualified members of the engine department; (b) a 
thorough practical training in the mechanics of all operations incident 
to the sailing and management of a vessel insofar as such operations 
form a part of the duties of qualified members of the engine department.



Sec. 166.15  Training for maintenance of discipline; ship sanitation; fire and lifeboat drills.

    All students shall be trained to obey all lawful orders emanating 
from their

[[Page 6]]

superior officers and schooled in the rules of conduct to be observed in 
order that proper discipline may be maintained on shipboard. They shall 
also be instructed in the fundamentals of ship sanitation as prescribed 
by law and regulations, and shall be given intensive instruction and 
practical training in all the operations incident to fire and lifeboat 
drills, both in port and at sea.



Sec. 166.20  Applicants for certificates; when eligible for examination.

    Applicants for certificates as able seamen will be eligible for 
examination after they have completed a course of study as outlined in 
Secs. 166.05, 166.15, and applicants for certificates as qualified 
members of the engine department after they have completed a course of 
study as outlined in Secs. 166.10, 166.15.



PART 167--PUBLIC NAUTICAL SCHOOL SHIPS--Table of Contents




                   Subpart 167.01--General Provisions

Sec.
167.01-1  Basis and purpose of part.
167.01-5  Application of regulations.
167.01-7  Ocean or unlimited coastwise vessels on inland and Great Lakes 
          routes.
167.01-8  Inspection of school ships using gross tonnage criterion.
167.01-10  Effective date of regulations.
167.01-15  Specifications for articles or materials.
167.01-20  OMB control numbers assigned pursuant to the Paperwork 
          Reduction Act.

                       Subpart 167.05--Definitions

167.05-1  Definition of terms.
167.05-5  Approved.
167.05-10  Commandant.
167.05-15  Coast Guard District Commander.
167.05-20  Marine inspector or inspector.
167.05-25  Nautical school ship.
167.05-30  Officer in Charge, Marine Inspection.
167.05-35  Public nautical school.
167.05-40  Underwater survey.

             Subpart 167.10--Enforcement and Right of Appeal

167.10-1  Enforcement.
167.10-50  Right of appeal.

                       Subpart 167.15--Inspections

167.15-1  Inspections required.
167.15-5  Authority of marine inspectors.
167.15-10  Application for annual inspection.
167.15-15  Application for inspection of a new nautical school ship or a 
          conversion of a vessel to a nautical school ship.
167.15-20  Inspections of nautical school ships.
167.15-25  Inspection standards for hulls, boilers and machinery.
167.15-27  Definitions relating to hull examinations.
167.15-28  Inspection of lifesaving appliances and arrangements.
167.15-30  Drydock examination, internal structural examination, and 
          underwater survey intervals.
167.15-33  Underwater Survey in Lieu of Drydocking (UWILD).
167.15-35  Notice and plans required.
167.15-40  Integral fuel oil tank examinations--T/ALL.
167.15-50  Tailshaft examinations.

   Subpart 167.20--Hull Requirements, Construction and Arrangement of 
                          Nautical School Ships

167.20-1  Construction.
167.20-7  Subdivision and stability.
167.20-10  Means of escape.
167.20-15  Scupper, sanitary and similar discharges.
167.20-17  Bilge pumps, bilge piping and sounding arrangements.
167.20-35  Liquid ballast.

                   Subpart 167.25--Marine Engineering

167.25-1  Boilers, pressure vessels, piping and appurtenances.
167.25-5  Inspection of boilers, pressure vessels, piping and 
          appurtenances.

                 Subpart 167.30--Repairs or Alterations

167.30-1  Notice of repairs or alterations required.
167.30-5  Proceeding to another port for repairs.
167.30-10  Special operating requirements.

                  Subpart 167.35--Lifesaving Equipment

167.35-1  General.

             Subpart 167.40--Certain Equipment Requirements

167.40-1  Electrical installations.
167.40-5  Alarm bells.
167.40-7  Voice tubes, telephone, and telegraph systems.
167.40-20  Deep-sea sounding apparatus.
167.40-25  Signaling lamp.
167.40-30  Guards and rails.
167.40-40  Radar.
167.40-45  Magnetic compass and gyrocompass.

[[Page 7]]

                       Subpart 167.43--Work Vests

167.43-1  Application.
167.43-5  Approved types of work vests.
167.43-10  Use.
167.43-15  Shipboard stowage.
167.43-20  Shipboard inspections.
167.43-25  Additional requirements for hybrid work vests.

  Subpart 167.45--Special Firefighting and Fire Prevention Requirements

167.45-1  Steam, carbon dioxide, and halon fire extinguishing systems.
167.45-5  Steam fire pumps or their equivalent.
167.45-10  Couplings on fire hose.
167.45-15  Capacity of pipes and hose.
167.45-20  Examination and testing of pumps and fire-extinguishing 
          equipment.
167.45-25  Fire mains and hose connections.
167.45-30  Use of approved fire-fighting equipment.
167.45-40  Fire-fighting equipment on nautical school ships using oil as 
          fuel.
167.45-45  Carbon dioxide fire-extinguishing system requirements.
167.45-50  Foam smothering system requirements.
167.45-60  Emergency breathing apparatus and flame safety lamps.
167.45-65  Portable fire extinguishers in accommodation spaces.
167.45-70  Portable fire extinguishers, general requirements.
167.45-75  Fire extinguishers for emergency powerplants.
167.45-80  Fire axes.

                     Subpart 167.50--Accommodations

167.50-1  Hospital accommodations.

                Subpart 167.55--Special Markings Required

167.55-1  Draft marks and draft indicating systems.
167.55-5  Marking of fire and emergency equipment.

               Subpart 167.60--Certificates of Inspection

167.60-1  Issuance by Officer in Charge, Marine Inspection.
167.60-5  Period of time for which valid.
167.60-10  Exhibition of certificate of inspection.
167.60-15  Manning and persons allowed to be carried.

             Subpart 167.65--Special Operating Requirements

167.65-1  Emergency training, musters, and drills.
167.65-5  Flashing the rays of a searchlight or other blinding light.
167.65-15  Routing instructions; strict compliance with.
167.65-20  Unnecessary whistling.
167.65-25  Steering gear tests.
167.65-35  Use of auto pilot.
167.65-38  Loading doors.
167.65-40  Draft.
167.65-42  Verification of vessel compliance with applicable stability 
          requirements.
167.65-45  Notice to mariners; aids to navigation.
167.65-50  Posting placards of lifesaving signals.
167.65-60  Examination of boilers and machinery by engineer.
167.65-65  Notice and reporting of casualty and voyage records.
167.65-70  Reports of accidents, repairs, and unsafe boilers and 
          machinery by engineers.

    Authority: 46 U.S.C. 3306, 3307, 6101, 8105; E.O. 12234, 45 FR 
58801, 3 CFR, 1980 Comp., p. 277; 49 CFR 1.46.

    Source: CGFR 51-11, 16 FR 3218, Apr. 12, 1951, unless otherwise 
noted.



                   Subpart 167.01--General Provisions



Sec. 167.01-1  Basis and purpose of part.

    The rules and regulations in this part are prescribed and apply to 
public nautical school ships, except vessels of the Navy or Coast Guard. 
It is the intent of the regulations in this part to provide minimum 
standards for vessels used as nautical school ships in accordance with 
the various inspection statutes and to obtain their correct and uniform 
application. This part is not applicable to civilian nautical school 
ships.

[CGD 95-028, 62 FR 51216, Sept. 30, 1997]



Sec. 167.01-5  Application of regulations.

    (a) Regulations in this part contain requirements for the design, 
construction, inspection, lifesaving equipment, firefighting and fire 
prevention requirements, special operating requirements and number of 
persons allowed to be carried on nautical school ships.
    (b) Vessels owned or chartered by the United States Maritime 
Administration that may be used by or in connection with any nautical 
school are not normally considered as merchant vessels of the United 
States and, therefore, are not documented.

[[Page 8]]

    (c) Documented nautical school ships of 500 gross tons or more, on 
international voyages, shall comply with the standards of the 
International Convention for Safety of Life at Sea, 1974, for cargo 
vessels.

[CGFR 51-11, 16 FR 3218, Apr. 12, 1951, as amended by CGFR 69-127, 35 FR 
9982, June 17, 1970; CGD 90-008, 55 FR 30663, July 26, 1990]



Sec. 167.01-7  Ocean or unlimited coastwise vessels on inland and Great Lakes routes.

    (a) Vessels inspected and certificated for ocean or unlimited 
coastwise routes shall be considered suitable for navigation insofar as 
the provisions of this subchapter are concerned on any inland route, 
including the Great Lakes.

[CGFR 59-10, 24 FR 3240, Apr. 25, 1959]



Sec. 167.01-8  Inspection of school ships using gross tonnage criterion.

    (a) One of the criteria used for invocation of safety standards is 
the descriptions of school ships by relative sizes in gross tonnages. 
When it is determined in accordance with Sec. 70.05-20 of this chapter 
that a particular school ship has a Bureau of Customs' assigned gross 
register tonnage which is not indicative of the relative physical size 
of the vessel, the requirements in this part and the manning shall be 
that applicable to a vessel of the greater relative size.

[CGFR 60-50, 25 FR 7982, Aug. 18, 1960]



Sec. 167.01-10  Effective date of regulations.

    (a) The regulations in this part shall be in effect on and after 
July 1, 1951: Provided, That amendments, revisions, or additions shall 
become effective 90 days after the date of publication in the Federal 
Register unless the Commandant shall fix a different time.
    (b) Amendments to regulations in this part will not be retroactive 
in effect unless specifically made so at the time the amendments are 
issued.



Sec. 167.01-15  Specifications for articles or materials.

    Articles of equipment or materials used in the equipment or the 
construction of vessels, which conform to the specifications of the Navy 
or Coast Guard or their approved equivalent, may be accepted.



Sec. 167.01-20  OMB control numbers assigned pursuant to the Paperwork Reduction Act.

    (a) Purpose. This section collects and displays the control numbers 
assigned to information collection and recordkeeping requirements in 
this subchapter by the Office of Management and Budget (OMB) pursuant to 
the Paperwork Reduction Act of 1980 (44 U.S.C. 3501 et seq.). The Coast 
Guard intends that this section comply with the requirements of 44 
U.S.C. 3507(f), which requires that agencies display a current control 
number assigned by the Director of the OMB for each approved agency 
information collection requirement.
    (b) Display.

------------------------------------------------------------------------
                                                             Current OMB
    46 CFR part or section where identified or described      control No
------------------------------------------------------------------------
Sec.  167.15-35............................................    2115-0554
Sec.  167.65-38............................................    2115-0589
Sec.  167.65-43............................................    2115-0589
------------------------------------------------------------------------


[CGD 88-072, 53 FR 34298, Sept. 6, 1988, as amended by CGD 89-037, 57 FR 
41824, Sept. 11, 1992]



                       Subpart 167.05--Definitions



Sec. 167.05-1  Definition of terms.

    Certain terms used in the regulations of this part are defined in 
this subpart.



Sec. 167.05-5  Approved.

    This term means approved by the Commandant unless otherwise stated.



Sec. 167.05-10  Commandant.

    This term means Commandant of the Coast Guard.



Sec. 167.05-15  Coast Guard District Commander.

    This term means an officer of the Coast Guard designated as such by 
the Commandant to command all Coast Guard activities within the 
officer's district, which include the inspections, enforcement, and 
administration of Subtitle II of Title 46, U.S. Code, Title

[[Page 9]]

46 and Title 33 U.S. Code, and regulations issued under these statutes.

[CGD 95-028, 62 FR 51216, Sept. 30, 1997]



Sec. 167.05-20  Marine inspector or inspector.

    These terms mean any person from the civilian or military branch of 
the Coast Guard assigned under the superintendence and direction of an 
Officer in Charge, Marine Inspection, or any other person as may be 
designated for the performance of duties with respect to the 
inspections, enforcement, and administration of Subtitle II of Title 46, 
U.S. Code, Title 46 and Title 33 U.S. Code, and regulations issued under 
these statutes.

[CGD 95-028, 62 FR 51217, Sept. 30, 1997]



Sec. 167.05-25  Nautical school ship.

    The term nautical school ship means a vessel operated by or in 
connection with a nautical school or an educational institution under 
Section 13 of the Coast Guard Authorization Act of 1986.

[CGD 84-069, 61 FR 25311, May 20, 1996]



Sec. 167.05-30  Officer in Charge, Marine Inspection.

    This term means any person from the civilian or military branch of 
the Coast Guard designated as such by the Commandant and who, under the 
superintendence and direction of the Coast Guard District Commander, is 
in charge of an inspection zone for the performance of duties with 
respect to the inspections, enforcement, and administration of Subtitle 
II of Title 46, U.S. Code, Title 46 and Title 33 U.S. Code, and 
regulations issued under these statutes.

[CGD 95-028, 62 FR 51217, Sept. 30, 1997]



Sec. 167.05-35  Public nautical school.

    The term public nautical school means any school or branch thereof 
operated by any State or political subdivision thereof or a school 
operated by the United States Maritime Administration that offers 
instruction for the primary purpose of training for service in the 
merchant marine.

[CGD 84-069, 61 FR 25311, May 20, 1996]



Sec. 167.05-40  Underwater survey.

    Underwater survey means the examination of the vessel's underwater 
hull including all through-hull fittings and appurtenances, while the 
vessel is afloat.

[USCG-2000-6858, 67 FR 21082, Apr. 29, 2002]



             Subpart 167.10--Enforcement and Right of Appeal



Sec. 167.10-1  Enforcement.

    The Officer in Charge, Marine Inspection, is responsible for the 
performance of duties within the officer's jurisdiction with respect to 
inspection of nautical school ships.

[CGD 95-028, 62 FR 51217, Sept. 30, 1997]



Sec. 167.10-50  Right of appeal.

    Any person directly affected by a decision or action taken under 
this part, by or on behalf of the Coast Guard, may appeal therefrom in 
accordance with subpart 1.03 of this chapter.

[CGD 88-033, 54 FR 50381, Dec. 6, 1989]



                       Subpart 167.15--Inspections



Sec. 167.15-1  Inspections required.

    (a) Before a vessel may be used as a nautical school ship, it shall 
be inspected by the Coast Guard to determine that the hull, boilers, 
machinery, equipment and appliances comply with the regulations in this 
part.
    (b) Every nautical school ship subject to the regulations in this 
part shall be inspected annually, or oftener if necessary, by the Coast 
Guard to determine that the hull, boilers, machinery, equipment and 
appliances comply with the regulations in this part.
    (c) Nautical school ships while laid up and dismantled and out of 
commission are exempt from any or all inspections required by law or 
regulations in this part.



Sec. 167.15-5  Authority of marine inspectors.

    Marine inspectors may at any time lawfully inspect any nautical 
school ship.

[[Page 10]]



Sec. 167.15-10  Application for annual inspection.

    Application in writing for the annual inspection of every nautical 
school ship required to be inspected by law and the regulations in this 
part shall be made by the master, owner, or agent to the Officer in 
Charge, Marine Inspection, at any local Marine Inspection Office, U.S. 
Coast Guard, where the nautical school ship may be operating. The 
application shall be on Form CG 3752, Application for Inspection of U.S. 
Vessel, which requires information on name and type of vessel, nature of 
employment and route in which to be operated, place where and date when 
the vessel may be inspected, and that no other application has been made 
to any Officer in Charge, Marine Inspection, since the issuance of the 
last valid certificate of inspection.

[CGFR 51-11, 16 FR 3218, Apr. 12, 1951, as amended by CGFR 64-19, 29 FR 
7361, June 5, 1964]



Sec. 167.15-15  Application for inspection of a new nautical school ship or a conversion of a vessel to a nautical school ship.

    Prior to the commencement of the construction of a new nautical 
school ship, or a conversion of a vessel to a nautical school ship, 
application for the approval of contract plans and specifications and 
for a certificate of inspection shall be made in writing by the owner or 
agent to the Officer in Charge, Marine Inspection, at the nearest local 
Marine Inspection Office, U.S. Coast Guard.



Sec. 167.15-20  Inspections of nautical school ships.

    (a) At each annual inspection, or oftener if deemed necessary, the 
inspector will inspect the hull, boilers, machinery, equipment, and 
appliances generally for compliance with the regulations in this subpart 
and in addition will inspect and test certain specific items as 
specifically set forth in this part.
    (b) To renew a Certificate of Inspection, you must submit an 
application at least 30 days before the expiration of the vessel's 
current certificate.

[CGFR 51-11, 16 FR 3218, Apr. 12, 1951, as amended by USCG-1999-4976, 65 
FR 6507, Feb. 9, 2000]



Sec. 167.15-25  Inspection standards for hulls, boilers and machinery.

    Except as otherwise provided by law or regulations in this subpart, 
the following standards shall be accepted as standard by the inspectors:
    (a) American Bureau of Shipping ``Rules for Building and Classing 
Steel Vessels'' regarding the construction of hulls, boilers and 
machinery in effect on the date of inspection. These rules may be 
purchased from the American Bureau of Shipping (ABS), ABS Plaza, 16855 
Northchase Drive, Houston, TX 77060.
    (b) U. S. Navy Standard Construction Specification in effect on the 
date of inspection.
    (c) U. S. Coast Guard Standard Construction Specification in effect 
on the date of inspection.

[CGFR 51-11, 16 FR 3218, Apr. 12, 1951, as amended by USCG-1999-6216, 64 
FR 53228, Oct. 1, 1999; USCG-2000-7790, 65 FR 58464, Sept. 29, 2000]



Sec. 167.15-27  Definitions relating to hull examinations.

    As used in this part--
    (a) Drydock examination means hauling out a vessel or placing a 
vessel in a drydock or slipway for an examination of all accessible 
parts of the vessel's underwater body and all through-hull fittings, sea 
chests, sea valves, sea strainers, and valves for the emergency bilge 
suction.
    (b) Internal structural examination means an examination of the 
vessel while afloat or in drydock and consists of a complete examination 
of the vessel's main strength members, including the major internal 
framing, the hull plating, voids, and ballast tanks, but not including 
cargo or fuel oil tanks.

[CGD 84-024, 52 FR 39655, Oct. 23, 1987, as amended at 53 FR 32232, Aug. 
24, 1988]



Sec. 167.15-28  Inspection of lifesaving appliances and arrangements.

    The inspection of lifesaving appliances and arrangements must be in 
accordance with the requirements for

[[Page 11]]

special purpose vessels in subchapter W (Lifesaving Appliances and 
Arrangements) of this chapter.

[CGD 84-069, 61 FR 25311, May 20, 1996]



Sec. 167.15-30  Drydock examination, internal structural examination, and underwater survey intervals.

    (a) Except as provided for in paragraphs (b) through (e) of this 
section, each vessel must undergo drydock and internal structural 
examinations as follows:
    (1) If your vessel operates in saltwater, it must undergo two 
drydock examinations and two internal structural examinations within any 
5-year period unless it has been approved to undergo an underwater 
survey (UWILD) under Sec. 167.15-33 of this part. No more than three 
years may elapse between any two examinations.
    (2) If your vessel operated in fresh water at least 50 percent of 
the time since your last drydocking, it must undergo a dry dock and 
internal structural examination at intervals not to exceed 5 years 
unless it has been approved to undergo an underwater survey (UWILD) 
under Sec. 167.15-33 of this part.
    (b) Vessels with wooden hulls must undergo two drydock and two 
internal structural examinations within any five year period regardless 
of the type of water in which they operate. No more than three years may 
elapse between any two examinations.
    (c) If, during an internal structural examination damage or 
deterioration to the hull plating or structural members is discovered, 
the Officer in Charge, Marine Inspection, may require the vessel to be 
drydocked or otherwise taken out of service to further assess the extent 
of the damage and to effect permanent repairs.
    (d) Each vessel which has not met with the applicable examination 
schedules in paragraphs (a) through (c) of this section because it is on 
a voyage, must undergo the required examinations upon completion of the 
voyage.
    (e) The Commandant (G-MOC) may authorize extensions to the 
examination intervals specified in paragraphs (a) and (b) of this 
section.

[CGD 84-024, 52 FR 39655, Oct. 23, 1987, as amended at 53 FR 32232, Aug. 
24, 1988; CGD 95-072, 60 FR 50467, Sept. 29, 1995; CGD 96-041, 61 FR 
50734, Sept. 27, 1996; USCG-2000-6858, 67 FR 21082, Apr. 29, 2002]



Sec. 167.15-33  Underwater Survey in Lieu of Drydocking (UWILD).

    (a) The Officer in Charge, Marine Inspection (OCMI), may approve an 
underwater survey instead of a drydock examination at alternating 
intervals if your vessel is--
    (1) Less than 15 years of age;
    (2) A steel or aluminum hulled vessel;
    (3) Fitted with an effective hull protection system; and
    (4) Described in 46 CFR 167.15-30(a)(1) or (2).
    (b) For vessels less than 15 years of age, you must submit an 
application for an underwater survey to the OCMI at least 90 days before 
your vessel's next required drydock examination. The application must 
include--
    (1) The procedure for carrying out the underwater survey;
    (2) The time and place of the underwater survey;
    (3) The method used to accurately determine the diver's or remotely 
operated vehicle's (ROV) location relative to the hull;
    (4) The means for examining all through-hull fittings and 
appurtenances;
    (5) The means for taking shaft bearing clearances;
    (6) The condition of the vessel, including the anticipated draft of 
the vessel at the time of survey;
    (7) A description of the hull protection system; and
    (8) The name and qualifications of any third party examiner.
    (c) If your vessel is 15 years old or older, the District Commander, 
may approve an underwater survey instead of a drydock examination at 
alternating intervals. You must submit an application for an underwater 
survey to the OCMI at least 90 days before your vessel's next required 
drydock examination. You may be allowed this option if--
    (1) The vessel is qualified under paragraphs (a)(2) through (4) of 
this section;

[[Page 12]]

    (2) Your application includes the information in paragraphs (b)(1) 
through (b)(8) of this section; and
    (3) During the vessel's drydock examination, preceding the 
underwater survey, a complete set of hull gaugings was taken and they 
indicated that the vessel was free from appreciable hull deterioration.
    (d) After the drydock examination required in paragraph (c)(3) of 
this section, the Officer in Charge, Marine Inspection submits a 
recommendation for future underwater surveys, the results of the hull 
gauging, and the results of the Coast Guards' drydock examination 
results to the cognizant District Commander for review.

[USCG-2000-6858, 67 FR 21083, Apr. 29, 2002]



Sec. 167.15-35  Notice and plans required.

    (a) The master, owner, operator, or agent of the vessel shall notify 
the Officer in Charge, Marine Inspection, whenever the vessel is to be 
drydocked regardless of the reason for drydocking.
    (b) Each vessel, except barges, that holds a Load Line Certificate 
must have on board a plan showing the vessel's scantlings. This plan 
must be made available to the Coast Guard marine inspector whenever the 
vessel undergoes a drydock examination, internal structural examination, 
underwater survey, or whenever repairs are made to the vessel's hull.
    (c) Each barge that holds a Load Line Certificate must have a plan 
showing the barge's scantlings. The plan need not be maintained on board 
the barge but must be made available to the Coast Guard marine inspector 
whenever the barge undergoes a drydock examination, internal structural 
examination, underwater survey, or whenever repairs are made to the 
barge's hull.

[CGD 84-024, 52 FR 39655, Oct. 23, 1987; USCG-2000-6858, 67 FR 21083, 
Apr. 29, 2002]



Sec. 167.15-40  Integral fuel oil tank examinations--T/ALL.

    (a) Each fuel oil tank with at least one side integral to the 
vessel's hull and located within the hull (``integral fuel oil tank'') 
is subject to inspection as provided in this section. The owner or 
operator of the vessel shall have the tanks cleaned out and gas freed as 
necessary to permit internal examination of the tank or tanks designated 
by the marine inspector. The owner or operator shall arrange for an 
examination of the fuel tanks of each vessel during an internal 
structural examination at intervals not to exceed five years.
    (b) Integral non-double-bottom fuel oil tanks need not be cleaned 
out and internally examined if the marine inspector is able to determine 
by external examination that the general condition of the tanks is 
satisfactory.
    (c) Double-bottom fuel oil tanks on vessels less than 10 years of 
age need not be cleaned out and internally examined if the marine 
inspector is able to determine by external examination that the general 
condition of the tanks is satisfactory.
    (d) Double-bottom fuel oil tanks on vessels 10 years of age or older 
but less than 15 years of age need not be cleaned out and internally 
examined if the marine inspector is able to determine by internal 
examination of at least one forward double-bottom fuel oil tank, and by 
external examination of all other double-bottom fuel oil tanks on the 
vessel, that the general condition of the tanks is satisfactory.
    (e) All double-bottom fuel oil tanks on vessels 15 years of age or 
older need not be cleaned out and internally examined if the marine 
inspector is able to determine by internal examination of at least one 
forward, one amidships, and one aft double-bottom fuel oil tank, and by 
external examination of all other double-bottom fuel oil tanks on the 
vessel, that the general condition of the tanks is satisfactory.

[CGD 84-024, 52 FR 39655, Oct. 23, 1987, as amended at 53 FR 32232, Aug. 
24, 1988]



Sec. 167.15-50  Tailshaft examinations.

    Tailshaft examinations on nautical school ships must conform with 
the examination requirements in part 61 of this chapter.

[CGD 84-024, 52 FR 39655, Oct. 23, 1987]

[[Page 13]]



   Subpart 167.20--Hull Requirements, Construction and Arrangement of 
                          Nautical School Ships



Sec. 167.20-1  Construction.

    Except as otherwise provided by law or regulations in this subpart, 
the following standards for construction are acceptable.
    (a) American Bureau of Shipping ``Rules for Building and Classing 
Steel Vessels'' regarding the construction of hulls, boilers and 
machinery in effect on the date of inspection. These rules may be 
purchased from the American Bureau of Shipping (ABS), Two World Trade 
Center--106th Floor, New York, NY 10048.
    (b) U. S. Navy Standard Construction Specification in effect on the 
date of inspection.
    (c) U. S. Coast Guard Standard Construction Specification in effect 
on the date of inspection.

[CGFR 51-11, 16 GR 3218, Apr. 12, 1951, as amended by USCG-1999-6216, 64 
FR 53228, Oct. 1, 1999]



Sec. 167.20-7  Subdivision and stability.

    Each vessel must meet the applicable requirements in Subchapter S of 
this chapter.

[CGD 79-023, 48 FR 51010, Nov. 4, 1983]



Sec. 167.20-10  Means of escape.

    (a) On all nautical school ships where the arrangements will 
possibly permit, all inclosures where persons may be quartered, or where 
anyone may be employed, shall be provided with not less than two avenues 
of escape, so located that if one of such avenues is not available 
another may be.



Sec. 167.20-15  Scupper, sanitary and similar discharges.

    (a) All scupper, sanitary, and other similar discharges which lead 
through the ship's hull shall be fitted with efficient means for 
preventing the ingress of water in the event of a fracture of such 
pipes. The requirements do not apply to the discharges in the machinery 
space connected with the main and auxiliary engines, pumps, etc.



Sec. 167.20-17  Bilge pumps, bilge piping and sounding arrangements.

    The number, capacity, and arrangement of bilge pumps and bilge 
piping shall be in accordance with the requirements for cargo vessels 
contained in parts 50 to 61 of Subchapter F (Marine Engineering) of this 
chapter. Sounding pipes shall be fitted in each compartment, except 
those accessible at all times. The main and secondary drain systems 
installed in accordance with U.S. Navy or U.S. Coast Guard Construction 
Specifications shall be accepted as meeting the intent of this section.

[CGFR 52-43, 17 FR 9542, Oct. 18, 1952]



Sec. 167.20-35  Liquid ballast.

    When water ballasting of fuel tanks is necessary, such oily ballast 
shall not be subsequently discharged overboard within any of the 
prohibited zones as defined by the Oil Pollution Act, 1961 (33 U.S.C. 
1011), except through oily water separators which meet the requirements 
in 33 CFR 155.330 through 155.380, or directly into sludge barges or 
shore facilities, or other approved means.

[CGFR 62-17, 27 FR 9046, Sept. 11, 1962, as amended by CGD 95-072, 60 FR 
50468, Sept. 29, 1995]



                   Subpart 167.25--Marine Engineering



Sec. 167.25-1  Boilers, pressure vessels, piping and appurtenances.

    (a) Except as otherwise provided by law or regulations in this 
subpart, all vessels constructed or reconverted to use as nautical 
school ships on or after July 1, 1951, shall conform with one of the 
following standards for boilers, pressure vessels, piping and 
appurtenances:
    (1) Marine engineering regulations in parts 50 to 63, inclusive, of 
Subchapter F (Marine Engineering) of this chapter.
    (2) Navy Standard Construction Specifications in effect at time of 
construction or conversion.
    (3) U.S. Coast Guard Standard Construction Specifications in effect 
at time of construction or conversion.

[[Page 14]]

    (b) The boilers, pressure vessels, and appurtenances shall be 
inspected initially under the provisions of part 52 of Subchapter F 
(Marine Engineering) of this chapter. All alterations, replacements or 
repairs on nautical school ships shall conform to the applicable 
standards in paragraph (a) of this section insofar as practicable.

[CGFR 51-11, 16 FR 3218, Apr. 12, 1951, as amended by CGFR 68-82, 33 FR 
18908, Dec. 18, 1968]



Sec. 167.25-5  Inspection of boilers, pressure vessels, piping and appurtenances.

    The inspection of boilers, pressure vessels, piping and 
appurtenances shall be in accordance with the applicable regulations in 
parts 50 to 63, inclusive, of Subchapter F (Marine Engineering) of this 
chapter, insofar as they relate to tests and inspection of cargo 
vessels.

[CGFR 68-82, 33 FR 18908, Dec. 18, 1968]



                 Subpart 167.30--Repairs or Alterations



Sec. 167.30-1  Notice of repairs or alterations required.

    (a) It shall be the duty of the master, owner, or agent to notify 
the nearest Officer in Charge, Marine Inspection, whenever repairs or 
alterations are required, or will be made on a nautical school ship.
    (b) Whenever a nautical school ship is placed upon the dock, it 
shall be the duty of the master, owner or agent to report the same to 
the Officer in Charge, Marine Inspection, so that a thorough inspection 
may be made by the Coast Guard to determine what is necessary to make 
such a nautical school ship seaworthy, if the condition or age of the 
nautical school ship, in the judgment of the Officer in Charge, Marine 
Inspection, renders such examination necessary.



Sec. 167.30-5  Proceeding to another port for repairs.

    (a) The Officer in Charge, Marine Inspection, may issue a permit to 
proceed to another port for repairs, if in his judgment it can be done 
with safety. In the issuance of such a permit the Officer in Charge, 
Marine Inspection, will state upon its face, the conditions upon which 
it is granted.
    (b) When a nautical school ship obtains a permit from the Officer in 
Charge, Marine Inspection, to go to another port for repairs, the 
Officer in Charge, Marine Inspection, shall so notify the Coast Guard 
District Commander, and state the repairs to be made. The Coast Guard 
District Commander shall notify the Coast Guard District Commander of 
the district where such repairs are to be made, furnishing him a copy of 
the report indicating the repairs ordered.



Sec. 167.30-10  Special operating requirements.

    Inspection and testing required when making alterations, repairs, or 
other such operations involving riveting, welding, burning, or like 
fire-producing actions are as follows:
    (a) The provisions of ``Standard for the Control of Gas Hazards on 
Vessels to be Repaired'', NFPA No. 306, published by National Fire 
Protection Association, 1 Batterymarch Park, Quincy, MA 02269 shall be 
used as a guide in conducting the inspections and issuance of 
certificates required by this section.
    (b) Until an inspection has been made to determine that such 
operation can be undertaken with safety, no alterations, repairs, or 
other such operations involving riveting, welding, burning, or like 
fire-producing actions shall be made:
    (1) Within or on the boundaries of cargo tanks which have been used 
to carry combustible liquids or chemicals in bulk; or,
    (2) Within spaces adjacent to cargo tanks which have been used to 
carry Grade D combustible liquid cargo, except where the distance 
between such cargo tanks and the work to be performed is not less than 
twenty-five (25) feet; or,
    (3) Within or on the boundaries of fuel tanks; or,
    (4) To pipe lines, heating coils, pumps, fittings, or other 
appurtenances connected to such cargo or fuel tanks.
    (c) Such inspections shall be made and evidenced as follows:

[[Page 15]]

    (1) In ports or places in the United States or its territories and 
possessions, the inspection shall be made by a marine chemist 
certificated by the National Fire Protection Association; however, if 
the services of such certified marine chemist are not reasonably 
available, the Officer in Charge, Marine Inspection, upon the 
recommendation of the vessel owner and his contractor or their 
representative, shall select a person who, in the case of an individual 
vessel, shall be authorized to make such inspection. If the inspection 
indicates that such operations can be undertaken with safety, a 
certificate setting forth the fact in writing and qualified as may be 
required, shall be issued by the certified marine chemist or the 
authorized person before the work is started. Such qualifications shall 
include any requirements, as may be deemed necessary to maintain, 
insofar as can reasonably be done, the safe conditions in the spaces 
certified throughout the operation and shall include such additional 
tests and certifications as considered required. Such qualifications and 
requirements shall include precautions necessary to eliminate or 
minimize hazards that may be present from protective coatings or 
residues from cargoes.
    (2) When not in such a port or place, and a marine chemist or such 
person authorized by the Officer in Charge, Marine Inspection, is not 
reasonably available, the inspection shall be made by the senior officer 
present and a proper entry shall be made in the vessel's logbook.
    (d) It shall be the responsibility of the senior officer present to 
secure copies of certificates issued by the certified marine chemist or 
such person authorized by the Officer in Charge, Marine Inspection. It 
shall be the responsibility of the senior officer present, insofar as 
the persons under his control are concerned, to maintain a safe 
condition on the vessel by full observance of all qualifications and 
requirements listed by the marine chemist in the certificate.

[CGFR 64-19, 29 FR 7361, June 5, 1964, as amended by CGD 95-072, 60 FR 
50468, Sept. 29, 1995]



                  Subpart 167.35--Lifesaving Equipment



Sec. 167.35-1  General.

    Lifesaving appliances and arrangements on nautical school ships must 
be in accordance with the requirements for special purpose vessels in 
subchapter W (Lifesaving Appliances and Arrangements) of this chapter.

[CGD 84-069, 61 FR 25311, May 20, 1996]



             Subpart 167.40--Certain Equipment Requirements



Sec. 167.40-1  Electrical installations.

    (a) Except as otherwise provided by law or regulation in this part, 
the electrical equipment may be considered acceptable if it complies 
with the requirements covered by any one of the following:
    (1) U.S. Navy Standard Construction Specifications currently in 
effect.
    (2) U. S. Coast Guard electrical engineering requirements in 
Subchapter J (Electrical Engineering) of this chapter.
    (3) Institute of Electrical and Electronic Engineers, Inc. (IEEE) 
Standard No. 45, 1945 or 1948 Revision. These standards may be purchased 
from the Institute of Electrical and Electronic Engineers, Inc. (IEEE), 
IEEE Service Center, 445 Hoes Lane, Piscataway, NJ 08855.
    (b) Changes or alterations in the electrical installations of 
vessels now in service shall be in accordance with standards set forth 
in paragraph (a) of this section.
    (c) Special attention shall be given by the inspectors in the 
examination of present installation to see that it is of such nature as 
to preclude any danger of fire, giving particular attention to wiring 
which is carried through wooden bulkheads, partitions, etc.

[CGFR 51-11, 16 FR 3218, Apr. 12, 1951, as amended by CGFR 52-43, 17 FR 
9543, Oct. 18, 1952; USCG-1999-6216, 64 FR 53228, Oct. 1, 1999]



Sec. 167.40-5  Alarm bells.

    All nautical school ships over 100 gross tons shall have all 
sleeping accommodations, public spaces, and machinery spaces equipped 
with a sufficient number of alarm bells so located

[[Page 16]]

as to warn all occupants. The system shall operate from a continuous 
source of electric energy capable of supplying the system for a period 
of at least 8 hours without being dependent upon the main, auxiliary or 
emergency generating plants. Each bell shall produce a signal of a tone 
distinct from that of other bell signals in the vicinity and shall be 
independently fused, with each of these fuses located above the bulkhead 
deck. The bells shall be controlled by a manually-operated contact maker 
located in the pilothouse. The characteristics of the contact maker 
shall be such that it possesses:
    (a) Positive contact;
    (b) Watertightness (when located in open spaces subject to weather);
    (c) Means whereby its electrically open or closed position can be 
determined by sense of touch;
    (d) Means to affect a make-or-break circuit for signaling; and
    (e) Self-maintaining contacts.



Sec. 167.40-7  Voice tubes, telephone, and telegraph systems.

    (a) Each nautical school ship shall be fitted with an efficient 
means of communication between the pilothouse and engine room. This may 
be by bell signals with voice tubes, telephone, or telegraph systems.
    (b) A voice tube or telephone system between the radio room and the 
navigating bridge shall be provided when the nautical school ship is 
equipped with a radio installation.
    (c) A voice tube or telephone system between the pilothouse and 
emergency steering station shall be provided when the nautical school 
ship is equipped with an emergency steering station.



Sec. 167.40-20  Deep-sea sounding apparatus.

    Nautical school ships shall be equipped with an efficient or 
electronic deep-sea sounding apparatus. The electronic deep-sea sounding 
apparatus required shall be installed, kept in working order, and ready 
for immediate use.

[CGFR 58-10, 23 FR 4686, June 26, 1958, as amended by CGD 75-074, 42 FR 
5964, Jan. 31, 1977; CGD 95-027, 61 FR 26010, May 23, 1996]



Sec. 167.40-25  Signaling lamp.

    Nautical school ships of over 150 gross tons shall be equipped with 
an efficient signaling lamp. This lamp shall be permanently fixed above 
the bridge and equipped with a Fresnel lens and high-speed bulb, 
operated by a weatherproof key, fitted with a suitable condenser. The 
lamp shall be so connected that it can be operated from the normal 
source of the nautical school ship's current, the emergency source, and 
other emergency batteries if provided.



Sec. 167.40-30  Guards and rails.

    On nautical school ships all exposed and dangerous places, such as 
gears and machinery shall be properly protected with covers, guards, or 
rails, in order that the danger of accidents may be minimized. On 
nautical school ships equipped with radio (wireless) the lead-ins shall 
be efficiently incased or insulated to insure the protection of persons 
from accidental shock. Such lead-ins shall be located so as not to 
interfere with the launching of lifeboats and life rafts.



Sec. 167.40-40  Radar.

    All mechanically propelled vessels of 1,600 gross tons and over in 
ocean or coastwise service must be fitted with a marine radar system for 
surface navigation. Facilities for plotting radar readings must be 
provided on the bridge.

[CGFR 75-074, 42 FR 5964, Jan. 31, 1977]



Sec. 167.40-45  Magnetic compass and gyrocompass.

    (a) All mechanically propelled vessels in ocean or coastwise service 
must be fitted with a magnetic compass.
    (b) All mechanically propelled vessels of 1,600 gross tons and over 
in ocean or coastwise service must be fitted with a gyrocompass in 
addition to the magnetic compass.
    (c) Each vessel must have an illuminated repeater for the 
gyrocompass required under paragraph (b) of this section that is at the 
main steering stand unless the gyrocompass is illuminated and is at the 
main steering stand.

[CFD 75-074, 42 FR 5964, Jan. 31, 1977]

[[Page 17]]



                       Subpart 167.43--Work Vests

    Source: CGFR 59-22, 24 FR 4962, June 18, 1959, unless otherwise 
noted.



Sec. 167.43-1  Application.

    (a) Provisions of this subpart shall apply to all vessels inspected 
and certificated in accordance with this subchapter.



Sec. 167.43-5  Approved types of work vests.

    (a) Each buoyant work vest carried under the permissive authority of 
this section must be approved under--
    (1) Subpart 160.053 of this chapter; or
    (2) Subpart 160.077 of this chapter as a commercial hybrid PFD.

[CGD 78-174A, 51 FR 4351, Feb. 4, 1986]



Sec. 167.43-10  Use.

    (a) Approved buoyant work vests are considered to be items of safety 
apparel and may be carried aboard vessels to be worn by crew members 
when working near or over the water under favorable working conditions. 
They shall be used under the supervision and control of designated 
ship's officers. When carried, such vests shall not be accepted in lieu 
of any portion of the required number of approved life preservers and 
shall not be substituted for the approved life preservers required to be 
worn during drills and emergencies.



Sec. 167.43-15  Shipboard stowage.

    (a) The approved buoyant work vests shall be stowed separately from 
the regular stowage of approved life preservers.
    (b) The locations for the stowage of work vests shall be such as not 
to be easily confused with that for approved life preservers.



Sec. 167.43-20  Shipboard inspections.

    (a) Each work vest shall be subject to examination by a marine 
inspector to determine its serviceability. If found to be satisfactory, 
it may be continued in service, but shall not be stamped by a marine 
inspector with a Coast Guard stamp. If a work vest is found not to be in 
a serviceable condition, then such work vest shall be removed from the 
vessel. If a work vest is beyond repair, it shall be destroyed or 
mutilated in the presence of a marine inspector so as to prevent its 
continued use as a work vest.



Sec. 167.43-25  Additional requirements for hybrid work vests.

    (a) In addition to the other requirements in this subpart, 
commercial hybrid PFD's must be--
    (1) Used, stowed, and maintained in accordance with the procedures 
set out in the manual required for these devices by Sec. 160.077-29 of 
this chapter and any limitations(s) marked on them; and
    (2) Of the same or similar design and have the same method of 
operation as each other hybrid PFD carried on board.

[CGD 78-174A, 51 FR 4351, Feb. 4, 1986]



  Subpart 167.45--Special Firefighting and Fire Prevention Requirements



Sec. 167.45-1  Steam, carbon dioxide, and halon fire extinguishing systems.

    (a) General requirements. (1) Nautical school ships shall be 
provided with an inert-gas fire-extinguishing system when required.
    (2) All nautical school ships carrying combustible cargo in the 
holds, between decks, or other closed cargo compartments shall be 
equipped with means for extinguishing fire in such compartments by the 
use of any inert-gas fire-extinguishing system approved by the Coast 
Guard or Navy. However, in specific cases where by reason of the design, 
such compartments are normally accessible and considered to be part of 
the working or living quarters, a water sprinkling system may be 
installed in lieu of an inert-gas fire-extinguishing system. On such 
vessels contracted for prior to January 1, 1962, a steam smothering 
system may be accepted in lieu of the inert gas system for the 
protection of cargo holds, paint lockers, and similar spaces. However, 
although existing steam smothering systems may be repaired, replaced, or 
extended, no new systems contracted for on or after January 1, 1962, 
will be permitted.

[[Page 18]]

    (3) Cabinets, boxes, or casings inclosing manifolds or valves shall 
be distinctly marked in painted letters about 3 inches in height, 
``Steam Fire Apparatus,'' or ``CO2 Fire Apparatus,'' as the 
case may be.
    (4) Steam or gas piping fitted for extinguishing fire shall not be 
used for any other purpose except that it may be used for fire-detecting 
purposes.
    (5) Pipes for conveying steam from the boilers for the purpose of 
extinguishing fire shall not be led into the cabins, other living 
spaces, or working spaces. Pipes for conveying carbon dioxide or other 
extinguishing vapors for the purpose of extinguishing fire shall not be 
led into the cabins or other living spaces.
    (6) Steam smothering lines shall be tested with at least 50 pounds 
air pressure with ends of the smothering lines capped, or by blowing 
steam through the lines, and a survey made for detecting corrosion and 
defects, using the hammer test or such other means as may be necessary.
    (7) At annual inspections, all carbon dioxide (CO2) 
cylinders, whether fixed or portable, shall be examined externally and 
replaced if excessive corrosion is found; and all cylinders shall also 
be checked by weighing to determine contents and if found to be more 
than 10 percent under required contents of carbon dioxide, the same 
shall be recharged.
    (8) Carbon dioxide and halon cylinders carried on board nautical 
school ships must be tested and marked in accordance with the 
requirements of Secs. 147.60 and 147.65 of this chapter.
    (9) Regarding the limitations on the use of steam smothering in 
subparagraph (2) of this paragraph, this does not preclude the 
introduction of steam into such confined spaces as boiler casings or 
into tanks for steaming out purposes. Such installations are not to be 
considered as part of any required fire extinguishing system.
    (b) Steam systems. (1) As noted in subparagraph (a)(2) of this 
section, steam smothering systems are not permitted on nautical school 
ships contracted for on or after January 1, 1962, nor for new 
installations on vessels contracted for prior to that date. Where steam 
smothering systems are installed, the provisions of this paragraph shall 
be met.
    (2) Steam for fire-extinguishing systems shall be available at a 
suitable pressure from the main boilers or a donkey or auxiliary boiler.
    (3) The pipe lines shall be led from not more than three stations in 
easily accessible locations on the weather deck to each cargo hold, 
cargo 'tween-decks, or other closed cargo compartments, and to each 
cargo-oil deep tank, lamp locker, oil room, and like compartments, which 
lamp locker, oil room, and like compartments, shall be wholly and 
tightly lined with metal. The steam connections to the lamp lockers, oil 
rooms, and like compartments may be taken from the nearest steam supply 
line, independent of the extinguishing manifolds. In lamp lockers, oil 
rooms, and like compartments, adequate means may be provided for 
ventilation if suitable dampers capable of being operated from outside 
the spaces are fitted in each vent duct.
    (4) Each pipe in the extinguishing manifolds shall be fitted with a 
shut-off valve plainly and permanently marked to indicate into which 
compartment it discharges. This requirement also applies to independent 
extinguishing lines.
    (5) Manifold steam supply pipes shall be fitted with master valves 
at the manifolds, and provision shall be made for draining the manifold 
and individual lines to protect them against freezing. If the manifolds 
are located on an open deck, they shall be enclosed in a metal box.
    (6) The minimum diameter of any steam fire-extinguishing pipe to a 
cargo hold, cargo 'tween-decks, other closed cargo compartments, or 
cargo-oil deep tank shall be one inch, the size and number of pipes to 
be governed by the size of the compartment. The minimum diameter of any 
steam fire-extinguishing pipe to a lamp locker, oil room, or like 
compartments, shall be three-fourths of an inch.
    (c) Inert-gas systems. (1) When a carbon dioxide (CO2) 
smothering system is fitted in the cargo hold, cargo 'tween-decks, or 
other closed cargo compartments, or cargo-oil deep tanks, the quantity 
of carbon dioxide shall be sufficient to give a gas saturation of 30

[[Page 19]]

percent of the gross volume of the largest cargo hold. The quantity in 
pounds of carbon dioxide required may be determined approximately by the 
following formula:
[GRAPHIC] [TIFF OMITTED] TC01MR91.000

where:

W=the weight of CO2 required, in pounds.
L=the length of the hold, in feet.
B=the mean breadth of the hold, in feet,
D=the depth from tank top or flat forming lower boundary to top of 
          uppermost space in which freight may be carried, in feet.

    (2) When a carbon dioxide (CO2) smothering system is 
fitted in the lamp locker, oil room, or like compartments, the quantity 
in pounds of carbon dioxide required may be determined by dividing the 
gross volume of the space by a factor of 22. Lamp lockers, oil rooms, 
and like compartments, in all classes of vessels, shall be wholly and 
tightly lined with metal. The whole charge of gas shall be capable of 
being released simultaneously by operating one valve and control, and 
all cylinders shall be completely discharged in not more than two 
minutes.
    (3) Pipes used for supplying carbon dioxide to the cargo holds, 
cargo 'tween-decks, other closed cargo compartments, and cargo-oil deep 
tanks shall be not less than three-fourths inch inside diameter. Pipes 
used for supplying carbon dioxide to lamp lockers, oil rooms, and like 
compartments shall not be less than one-half inch inside diameter.
    (4) The control(s) releasing the inert gas shall be located in a 
position(s) outside the space(s) protected and shall be readily 
accessible when the vessel is being navigated. All valves shall be 
permanently marked to indicate into which compartment they discharge. A 
space which is protected by a carbon dioxide extinguishing system, and 
is normally accessible to crew while the nautical school ship is being 
navigated shall be fitted with an approved audible alarm in such space, 
which will be automatically sounded when the carbon dioxide is admitted 
to the space.
    (5) Provisions shall be made to prevent the admission of air into 
the lower parts of cargo holds, cargo 'tween-decks, and other closed 
cargo compartments while the inert-gas system is in operation.
    (6) Cylinders, piping, and controls for the inert-gas system shall 
be protected from damage and shall be securely fastened and supported.

[CGFR 51-11, 16 FR 3218, Apr. 12, 1951, as amended by CGFR 54-46, 19 FR 
8708, Dec. 18, 1954; CGFR 61-15, 26 FR 9303, Sept. 30, 1961; CGFR 65-9, 
30 FR 11494, Sept. 8, 1965; CGD 84-044, 53 FR 7752, Mar. 10, 1988]



Sec. 167.45-5  Steam fire pumps or their equivalent.

    (a) All nautical school ships shall be equipped with fire pumps.
    (b) Nautical school ships of 100 gross tons and under shall be 
equipped with one hand fire pump with a pump-cylinder capacity not less 
than 100 cubic inches, or a power-driven pump of equivalent discharge 
capacity.
    (c) Nautical school ships over 100 gross tons shall be equipped with 
fire pumps and piping as follows:
    (1) All nautical school ships shall be provided with powerful pumps 
available for use as fire pumps. When of less than 1,000 gross tons it 
shall have 1, and when larger it shall have at least 2 independently 
driven pumps connected to the fire main. Each pump shall be capable of 
delivering two powerful jets of water simultaneously from the highest 
outlets on the fire main at a Pitot tube pressure of approximately 50 
pounds per square inch.
    (2) On oil-burning nautical school ships, where two pumps are 
required, they may be located in the same compartment, if the 
compartment is equipped with an approved fixed carbon dioxide 
extinguishing system.
    (d) Outlets from the fire mains shall be of a sufficient number and 
so arranged that any part of the living quarters, weather decks and any 
part of cargo decks, accessible to crew, while the nautical school ship 
is being navigated, may be reached with a single 50-foot length of hose. 
Outlets within accommodations and service spaces adjacent thereto shall 
comply with the above or they may be so arranged that any part may be 
reached with a single 75-foot length of hose provided a siamese 
connection is fitted at each outlet. Where the fire main is located on

[[Page 20]]

an exposed deck, branches shall be provided so that the hose connections 
necessary to comply with the foregoing be distributed on both sides of 
the nautical school ship. The fire hose shall be connected to the outlet 
at all times, except on open decks where the location of the fire 
hydrants is such that no protection is afforded for the hose in heavy 
weather. The fire hose may be temporarily removed from the hydrant when 
it will interfere with the handling of cargo.
    (e) Outlet openings shall have a diameter of not less than 1\1/2\ 
inches and shall be fitted with suitable hose connections and spanners. 
The arrangement of the fire hydrant shall be limited to any position 
from the horizontal to the vertical pointing downward, so that the hose 
will lead downward or horizontally, in order to minimize the possibility 
of kinking. In no case will a hydrant arranged in a vertical position 
with the outlet pointing upward be accepted.
    (f) Fire pumps shall be fitted on the discharge side with relief 
valves set to relieve at 25 pounds higher than the pressure necessary to 
maintain the requirements of paragraph (c)(1) of this section and a 
pressure gage to indicate the pressure on the fire main. If the fire 
pumps operating under shut-off conditions are not capable of producing a 
pressure exceeding 125 pounds per square inch, the relief valve may be 
omitted.
    (g) Each section of fire hose used after January 1, 1980 must be 
lined commercial fire hose that conforms to Underwriters' Laboratories, 
Inc. Standard 19 or Federal Specification ZZ-H-451E. Hose that bears the 
label of Underwriters' Laboratories, Inc. as lined fire hose is accepted 
as conforming to this requirement. Each section of replacement fire hose 
or any section of new fire hose placed aboard a vessel after January 1, 
1977 must also conform to the specification required by this paragraph.
    (h) Each fire hydrant must have at least one length of firehose. 
Each firehose on the hydrant must have a combination solid stream and 
water spray firehose nozzle that is approved under subpart 162.027 of 
this chapter.

[CGFR 51-11, 16 FR 3218, Apr. 12, 1951, as amended by CGFR 60-36, 25 FR 
10642, Nov. 5, 1960; CGD 74-60, 41 FR 43152, Sept. 30, 1976; CGD 76-086, 
44 FR 2394, Jan. 11, 1979]



Sec. 167.45-10  Couplings on fire hose.

    The couplings on fire hose shall be of brass, copper, or composition 
material. All hydrants shall be provided with suitable spanners.



Sec. 167.45-15  Capacity of pipes and hose.

    The capacity of the pipes and hose leading from the pumps shall in 
no case be less than that of the discharge opening of the pump: 
Provided, however, That the pipe and hose shall in no instance be less 
than 1\1/2\ inches in internal diameter.



Sec. 167.45-20  Examination and testing of pumps and fire-extinguishing equipment.

    The inspectors will examine all pumps, hose, and other fire 
apparatus and will see that the hose is subjected to a pressure of 100 
pounds to the square inch at each annual inspection and that the hose 
couplings are securely fastened.



Sec. 167.45-25  Fire mains and hose connections.

    All pipes used as mains for conducting water from fire pumps on 
nautical school ships shall be of steel, wrought iron, brass, or copper 
with wrought iron brass, or composition hose connections.



Sec. 167.45-30  Use of approved fire-fighting equipment.

    Portable fire extinguishers or fire-extinguishing systems which 
conform to the specifications of the Navy or Coast Guard, or their 
approved equivalent, may be accepted for use on nautical school ships.



Sec. 167.45-40  Fire-fighting equipment on nautical school ships using oil as fuel.

    Steam-propelled nautical school ships burning oil for fuel shall be 
fitted with the fire-fighting equipment of the following type and 
character:

[[Page 21]]

    (a) In each boiler room and in each of the machinery spaces of a 
nautical school ship propelled by steam, in which a part of the fuel-oil 
installation is situated, 2 or more approved fire extinguishers of the 
foam type of not less than 9.5 liters (2\1/2\ gallons) each or 2 or more 
approved fire extinguishers of the carbon dioxide type of not less than 
33 kilograms (15 pounds) each must be placed where accessible and ready 
for immediate use. On a nautical school ship of 1,000 gross tons and 
under, only 1 of the fire extinguishers may be required.
    (b) In boiler and machinery spaces, at least 2 fire hydrants must 
have a firehose of a length that allows each part of the boiler and 
machinery spaces to be reached by water from a combination solid stream 
and water spray firehose nozzle.
    (c) Each firehose under paragraph (b) of this section must have a 
combination solid stream and water spray firehose nozzle that meets 
subpart 162.027 of this chapter. Combination nozzles and low-velocity 
water spray applicators previously approved under subpart 162.027 of 
this chapter may remain so long as they are maintained in good condition 
to the satisfaction of the Officer in Charge, Marine Inspection.
    (d) On every steam propelled nautical school ship of over 1,000 
gross tons having one boiler room there shall be provided one fire 
extinguisher of the foam type of at least 40 gallons rated capacity or 
one carbon dioxide (CO2) extinguisher of at least 100 pounds. 
If the nautical school ship has more than one boiler room, an 
extinguisher of the above type shall be provided in each boiler room. On 
every steam propelled nautical school ship of 1,000 gross tons and 
under, foam type fire extinguishers of at least 20 gallons rated 
capacity or carbon dioxide (CO2) extinguishers of at least 50 
pounds shall be used. Extinguishers fitted shall be equipped with 
suitable hose and nozzles on reels or other practicable means easy of 
access, and of sufficient length to reach any part of the boiler room 
and spaces containing oil-fuel pumping units.
    (e) All nautical school ships propelled by internal-combustion 
engines shall be equipped with the following foam type or carbon dioxide 
type fire extinguishers in the machinery spaces:
    (1) One approved 12-gallon foam-type extinguisher or one approved 
35-pound carbon dioxide type extinguisher.
    (2) One approved 2\1/2\-gallon foam-type, or one approved 15-pound 
carbon dioxide type extinguisher for each 1,000 B. H. P. of the main 
engines, or fraction thereof. The total number of fire extinguishers 
carried shall not be less than two and need not exceed six.
    (3) When a donkey boiler fitted to burn oil as fuel is located in 
the machinery space, there shall be substituted for the 12-gallon foam 
type or 35-pound carbon dioxide type fire extinguisher required either 
one 40-gallon foam type or one 100-pound carbon dioxide type fire 
extinguisher.
    (f) In this section any reference to an approved fire extinguisher 
means either approved by the Coast Guard or the Navy.

[CGFR 51-11, 16 FR 3218, Apr. 12, 1951, as amended by CGD 76-086, 44 FR 
2394, Jan. 11, 1979; CGD 95-027, 61 FR 26010, May 23, 1996]



Sec. 167.45-45  Carbon dioxide fire-extinguishing system requirements.

    (a) When a carbon dioxide (CO2) smothering system is 
fitted in the boiler room, the quantity of carbon dioxide carried shall 
be sufficient to give a gas saturation of 25 percent of the gross volume 
of the largest boiler room from tank top to top of the boilers. Top of 
the boilers is to be considered as the top of the shell of a Scotch or 
leg type of boiler, and the top of the casing or drum, whichever is the 
higher, on water-tube boilers. The quantity of carbon dioxide required 
may be determined approximately by the following formula:
[GRAPHIC] [TIFF OMITTED] TC01MR91.001

where:

W=the weight of CO2 required in pounds.
L=the length of the boiler room in feet.
B=the breadth of the boiler room in feet.
D=the distance in feet from tank top or flat forming lower boundary to 
          top of boilers.

    (b) When a carbon dioxide (CO2) smothering system is 
fitted in the machinery space of a nautical school ship

[[Page 22]]

propelled by internal combustion engines, the quantity of carbon dioxide 
required may be determined approximately by the following formula:
[GRAPHIC] [TIFF OMITTED] TC01MR91.002

where:

W=the weight of CO2 required in pounds.
L=the length of machinery space in feet.
B=breadth of the machinery space in feet.
D=distance in feet from tank top or flat forming lower boundary to the 
          underside of deck forming the batch opening.

    (c) The whole charge of gas shall be capable of being released 
simultaneously by operating one valve and control. All cylinders shall 
be completely discharged in not more than two minutes. The arrangement 
of the piping shall be such as to give a general and fairly uniform 
distribution over the entire area protected. An alarm which shall 
operate automatically with the operation of the system shall be provided 
to give a warning in the space when the carbon dioxide is about to be 
released. Provision shall be made to prevent the admission of air into 
the lower parts of the boiler or engine room while the system is in 
operation.



Sec. 167.45-50  Foam smothering system requirements.

    (a) When a foam-type system is fitted, its capacity shall be such as 
to rapidly discharge over the entire area of the bilge (tank top) of the 
largest boiler room a volume of foam 6 inches deep in not more than 3 
minutes. The arrangement of piping shall be such as to give a uniform 
distribution over the entire area protected.
    (b) The foam-type system may be of a type approved by the Navy or 
Coast Guard. All containers and valves by which the system is operated 
shall be easily accessible and so placed that control valves and 
containers will not readily be cut off from use by an outbreak of fire.



Sec. 167.45-60  Emergency breathing apparatus and flame safety lamps.

    Each nautical-school ship must be equipped with the following 
devices:
    (a) Two pressure-demand, open circuit, self-contained breathing 
apparatus, approved by the Mine Safety and Health Administration (MSHA) 
and by the National Institute for Occupational Safety and Health (NIOSH) 
and having at a minimum a 30-minute air supply, a full face piece, and a 
spare charge for each. A self-contained compressed-air breathing 
apparatus previously approved under part 160, subpart 160.011, of this 
chapter may continue in use as required equipment if it was part of the 
vessel's equipment on November 23, 1992, and as long as it is maintained 
in good condition to the satisfaction of the Officer in Charge, Marine 
Inspection.
    (b) One flame safety lamp approved by the Coast Guard or Navy.

[CGD 86-036, 57 FR 48326, Oct. 23, 1992, as amended by CGD 95-028, 62 FR 
51217, Sept. 30, 1997]



Sec. 167.45-65  Portable fire extinguishers in accommodation spaces.

    (a) All nautical school ships shall be provided with such number of 
good and efficient portable fire extinguishers approved by the Navy or 
Coast Guard as follows:
    (1) Nautical school ships less than 150 feet in length shall have at 
least two fire extinguishers on each passenger deck.
    (2) Nautical school ships 150 feet and over in length shall be 
provided with at least one fire extinguisher for every 150 linear feet 
of corridor length or fraction thereof in the spaces occupied by 
passengers and crew.
    (3) In all public spaces fire extinguishers shall be located not 
more than 150 feet apart.
    (b) The number of required fire extinguishers is based on the 
capacity of the ordinary fire extinguisher, which is about 2\1/2\ 
gallons, and no fire extinguisher of larger capacity shall be allowed a 
greater rating than that of the ordinary fire extinguisher. Fire 
extinguishers of approved types of less capacity are allowable when 
their total contents equal the required quantity.



Sec. 167.45-70  Portable fire extinguishers, general requirements.

    (a) Extra charges shall be carried on board for 50 percent of each 
size and variety of fire extinguishers provided. If 50 percent of each 
size and variety of

[[Page 23]]

fire extinguishers carried gives a fractional result, extra charges 
shall be provided for the next largest whole number.
    (1) The following is an example:

 
                                                        Extra charges
                                                           required
 
Fire extinguishers carried:
  1................................................           1
  2................................................           1
  3................................................           2
  4................................................           2
  5................................................           3
 

    (2) When the portable fire extinguisher is of such variety that it 
cannot be readily recharged by the vessel's personnel, one spare unit of 
the same classification shall be carried in lieu of spare charges for 
all such units of the same size and variety.
    (b) Recharges, particularly the acid, used in charging soda-and-acid 
type of fire extinguishers, shall be packed in such manner that the 
filling operation (i.e., in recharging the extinguisher) can be 
performed without subjecting the person doing the recharging to undue 
risk of acid burns and shall be contained in Crown stopper type of 
bottle.
    (c) [Reserved]
    (d) Fire extinguishers shall be located in such places as in the 
judgment of the Officer in Charge, Marine Inspection, will be most 
convenient and serviceable in case of emergency and so arranged that 
they may be easily removed from their fastenings.
    (e) Every fire extinguisher provided shall be examined at each 
annual inspection to determine that it is still in good condition. Soda-
and-acid and foam fire extinguishers shall be tested by discharging the 
contents, cleaning thoroughly, and then refilling. Carbon dioxide fire 
extinguishers shall be checked by weighing to determine contents and if 
found to be more than 10 percent under required contents of carbon 
dioxide shall be recharged. Pump tank fire extinguishers shall be tested 
by pumping and discharging the contents, cleaning thoroughly, and then 
refilling or recharging. Cartridge-operated type fire extinguishers 
shall be checked by examining the extinguishing agents to determine if 
in still good condition and by examining the pressure cartridge. If the 
cartridge end is punctured, or it the cartridge is otherwise determined 
to have leaked or to be in an unsuitable condition, the pressure 
cartridge shall be rejected and a new one inserted. Stored pressure type 
extinguishers shall be checked by determining that the pressure gage is 
in the operating range, and the full charge of extinguishing agent is in 
the chamber. The hoses and nozzles of all fire extinguishers shall be 
inspected to see that they are clear and in good condition.

[CGFR 51-11, 16 FR 3218, Apr. 12, 1951, as amended by CGFR 54-46, 19 FR 
8708, Dec. 18, 1954; CGFR 59-21, 24 FR 7196; Sept. 5, 1959; CGFR 60-17, 
25 FR 2667, Mar. 30, 1960; CGFR 62-17, 27 FR 9047, Sept. 11, 1962]



Sec. 167.45-75  Fire extinguishers for emergency powerplants.

    In compartments where emergency lighting and wireless units are 
located, two fire extinguishers approved by the Coast Guard or the Navy, 
of either carbon dioxide or dry chemical type, shall be permanently 
located at the most accessible points. In addition, two fire 
extinguishers of the above types, or foam type, shall be permanently 
located so as to be readily accessible to the emergency fuel tanks 
containing gasoline, benzine or naphtha.

[CGFR 58-29, 23 FR 6882, Sept. 6, 1958, as amended by CGD 95-028, 62 FR 
51217, Sept. 30, 1997]



Sec. 167.45-80  Fire axes.

    (a) All nautical school ships shall be provided with fire axes, as 
follows:

 
                                                                 Number
                                                                 of axes
 
Gross tons of nautical school ships:
  All not over 50 tons........................................         1
  All over 50 tons and not over 200 tons......................         2
  All over 200 tons and not over 500 tons.....................         4
  All over 500 tons and not over 1,000 tons...................         6
  All over 1,000 tons.........................................         8
 

    (b) All fire axes shall be located so as to be readily found in time 
of need, shall not be used for general purposes, and shall be kept in 
good condition.

[[Page 24]]



                     Subpart 167.50--Accommodations



Sec. 167.50-1  Hospital accommodations.

    Each nautical school ship, which makes voyages of more than 3 days' 
duration between ports and carries 12 or more persons, shall be equipped 
with a compartment suitably separated from other spaces for hospital 
purposes, and such compartment shall have at least 1 bunk for every 12 
persons allowed to be carried: Provided, That not more than 6 bunks 
shall be required in any case.



                Subpart 167.55--Special Markings Required



Sec. 167.55-1  Draft marks and draft indicating systems.

    (a) All vessels must have draft marks plainly and legibly visible 
upon the stem and upon the sternpost or rudderpost or at any place at 
the stern of the vessel as may be necessary for easy observance. The 
bottom of each mark must indicate the draft.
    (b) The draft must be taken from the bottom of the keel to the 
surface of the water at the location of the marks.
    (c) In cases where the keel does not extend forward or aft to the 
location of the draft marks, due to a raked stem or cut away skeg, the 
draft must be measured from a line projected from the bottom of the keel 
forward or aft, as the case may be, to the location of the draft marks.
    (d) In cases where a vessel may have a skeg or other appendage 
extending locally below the line of the keel, the draft at the end of 
the vessel adjacent to such appendage must be measured to a line tangent 
to the lowest part of such appendage and parallel to the line of the 
bottom of the keel.
    (e) Draft marks must be separated so that the projections of the 
marks onto a vertical plane are of uniform height equal to the vertical 
spacing between consecutive marks.
    (f) Draft marks must be painted in contrasting color to the hull.
    (g) In cases where draft marks are obscured due to operational 
constraints or by protrusions, the vessel must be fitted with a reliable 
draft indicating system from which the bow and stern drafts can be 
determined.

[CGD 89-037, 57 FR 41824, Sept. 11, 1992]



Sec. 167.55-5  Marking of fire and emergency equipment.

    Marking of fire and emergency apparatus, watertight doors, lifeboat 
embarkation stations and direction signs, stateroom notices, 
instructions for changing steering gears, etc., shall be carried out as 
follows:
    (a) General alarm bell switch. The general alarm bell switch in the 
pilot-house or fire control station shall be clearly marked with 
lettering on a brass plate or with a sign in red letters on suitable 
background: ``General Alarm.''
    (b) General alarm bells. General alarm bells shall be marked in not 
less than \1/2\-inch red letters: ``General Alarm--When Bell Rings Go to 
Your Station.''
    (c) Steam, foam or CO2 fire smothering apparatus. Steam, 
foam or CO2 fire smothering apparatus shall be marked ``Steam 
Fire Apparatus'' or ``Foam Fire Apparatus'' or ``CO2 Fire 
Apparatus'', as appropriate, in not less than 2-inch red letters. The 
valves of all branch piping leading to the several compartments shall be 
distinctly marked to indicate the compartments or parts of the nautical 
school ship to which they lead.
    (d) Fire hose stations. At each fire hose valve there shall be 
marked in not less than 2-inch red letters and figures ``Fire Station 
1,'' 2, 3, etc.
    (e) Emergency squad equipment. Lockers or spaces containing 
equipment for use of the emergency squad shall be marked ``Emergency 
Squad Equipment.'' Lockers or spaces where oxygen or fresh air breathing 
apparatus is stowed shall be marked ``Oxygen Breathing Apparatus'' or 
``Fresh Air Breathing Apparatus,'' as appropriate.
    (f) Fire extinguishers. Each fire extinguisher shall be marked with 
a number and the location where stowed shall be marked in corresponding 
numbers in not less than 1-inch figures.
    (g) Watertight doors. Each watertight door shall be numbered in at 
least 2-inch letters and figures ``W.T.D. 1,'' 2, 3, etc. The color of 
the marking shall be in contrast to the background. All watertight door 
remote hand-closing

[[Page 25]]

stations shall be marked in at least 2-inch letters and figures ``W. T. 
D. 1,'' 2, 3, etc. The direction of operation of the lever or wheel 
provided to close or open the door at all watertight door remote hand-
closing stations shall be marked. The color of the sign shall contrast 
with the background.
    (h) Instructions for changing steering gear. Instructions in at 
least \1/2\-inch letters and figures shall be posted at each emergency 
steering station and in the steering engine room, relating in order, the 
different steps to be taken in changing to the emergency steering gear. 
Each clutch, gear wheel, level, valve, or switch which is used during 
the changeover shall be numbered or lettered on a brass plate or painted 
so that the markings can be recognized at a reasonable distance. The 
instructions shall indicate each clutch or pin to be ``in'' or ``out'' 
and each valve or switch which is to be ``opened'' or ``closed'' in 
shifting to any means of steering for which the vessel is equipped. 
Instructions shall be included to line up all steering wheels and rudder 
amidship before changing gears.
    (i) Rudder orders. At all steering stations, there shall be 
installed a suitable notice on the wheel or device or at such other 
position as to be directly in the helmsman's line of vision, to indicate 
the direction in which the wheel or device must be turned for ``right 
rudder'' and for ``left rudder.''
    (j) Lifesaving appliances. Each lifesaving appliance must be marked 
as required under subchapter W (Lifesaving Appliances and Arrangements) 
of this chapter.

[CGFR 51-11, 16 FR 3218, Apr. 12, 1951, as amended by CGFR 54-46, 19 FR 
8708, Dec. 18, 1954; CGFR 60-36, 25 FR 10642, Nov. 5, 1960; CGD 73-24R, 
39 FR 10139, Mar. 18, 1974; CGD 75-040, 40 FR 58454, Dec. 17, 1975; CGD 
84-069, 61 FR 25311, May 20, 1996]



               Subpart 167.60--Certificates of Inspection



Sec. 167.60-1  Issuance by Officer in Charge, Marine Inspection.

    (a) Every nautical school ship shall be inspected annually and if in 
the opinion of the Officer in Charge, Marine Inspection, the nautical 
school ship can be operated safely, he shall issue a certificate of 
inspection with the following indorsement: ``Nautical School Ship'' in 
lieu of the classification ``Passenger vessel'', ``cargo vessel'', etc.
    (b) When a nautical school ship, in the opinion of the Officer in 
Charge, Marine Inspection, may be navigated on the waters of any ocean 
or the Gulf of Mexico more than 20 nautical miles offshore, the route 
shall be designated on certificate of inspection as ``Ocean''.
    (c) When a nautical school ship, in the opinion of the Officer in 
Charge, Marine Inspection, may be navigated on the waters of any ocean 
or the Gulf of Mexico 20 nautical miles or less offshore, the route 
shall be designated on the certificate of inspection as ``Coastwise''.
    (d) Documented vessels of 500 gross tons or more, certificated for 
ocean or coastwise service, which do not comply with the requirements of 
SOLAS 74 for cargo vessels shall have their certificate of inspection 
endorsed ``Domestic Voyages Only.''

[CGFR 51-11, 16 FR 3218, Apr. 12, 1951, as amended by CGFR 69-127, 35 FR 
9982, June 17, 1970; CGD 90-008, 55 FR 30663, July 26, 1990]



Sec. 167.60-5  Period of time for which valid.

    A certificate of inspection for any period less than one year shall 
not be issued, but nothing herein shall be construed as preventing the 
revocation or suspension of a certificate of inspection in case such 
process is authorized by law.



Sec. 167.60-10  Exhibition of certificate of inspection.

    On every nautical school ship, the original certificate of 
inspection shall be framed under glass and posted in a conspicuous 
place.



Sec. 167.60-15  Manning and persons allowed to be carried.

    The Officer in Charge, Marine Inspection, shall specify in the 
Certificate of Inspection the minimum complement of officers and crew 
necessary for the safe navigation of the vessel and shall specify the 
total number of persons allowed to be carried.

[CGD 74-201, 41 FR 19647, May 13, 1976]

[[Page 26]]



             Subpart 167.65--Special Operating Requirements



Sec. 167.65-1  Emergency training, musters, and drills.

    Onboard training, musters, and drills must be in accordance with 
subchapter W (Lifesaving Appliances and Arrangements) of this chapter.

[CGD 84-069, 61 FR 25311, May 20, 1996]



Sec. 167.65-5  Flashing the rays of a searchlight or other blinding light.

    Flashing the rays of a searchlight or other blinding light onto the 
bridge or into the pilothouse of any vessel under way is prohibited.



Sec. 167.65-15  Routing instructions; strict compliance with.

    All licensed masters, officers, and certificated seamen on nautical 
school ships must strictly comply with routing instructions issued by 
competent naval authority.

[CGD 95-027, 61 FR 26010, May 23, 1996]



Sec. 167.65-20  Unnecessary whistling.

    Unnecessary sounding of a nautical school ship's whistle is 
prohibited within any harbor limits of the United States.



Sec. 167.65-25  Steering gear tests.

    On all nautical school ships making voyages of more than 48 hours' 
duration, the entire steering gear, the whistle, the means of 
communication and the signaling appliances between the bridge or 
pilothouse and engine room shall be examined and tested by an officer of 
the nautical school ship within a period of not more than 12 hours 
before leaving port. All nautical school ships making voyages of less 
than 48 hours' duration shall be so examined and tested at least once in 
every week. The fact and time of such examination and test shall be 
recorded in the log book.



Sec. 167.65-35  Use of auto pilot.

    Except as provided in 33 CFR 164.15, when the automatic pilot is 
used in--
    (a) Areas of high traffic density;
    (b) Conditions of restricted visibility; and
    (c) All other hazardous navigational situations, the master shall 
ensure that--
    (1) It is possible to immediately establish human control of the 
ship's steering:
    (2) A competent person is ready at all times to take over steering 
control; and
    (3) The changeover from automatic to manual steering and vice versa 
is made by, or under, the supervision of the officer of the watch.

[CFR 75-074, 42 FR 5964, Jan. 17, 1977]



Sec. 167.65-38  Loading doors.

    (a) The master of a vessel fitted with loading doors shall assure 
that all loading doors are closed watertight and secured during the 
entire voyage except that--
    (1) If a door cannot be opened or closed while the vessel is at a 
dock, it may be open while the vessel approaches and draws away from the 
dock, but only as far as necessary to enable the door to be immediately 
operated.
    (2) If needed to operate the vessel, or embark and disembark 
passengers when the vessel is at anchor in protected waters, loading 
doors may be open provided that the master determines that the safety of 
the vessel is not impaired.
    (b) For the purposes of this section, ``loading doors'' include all 
weathertight ramps, bow visors, and openings used to load personnel, 
equipment, and stores, in the collision bulkhead, the side shell, and 
the boundaries of enclosed superstructures that are continuous with the 
shell of the vessel.
    (c) The master shall enter into the log book the time and door 
location of every closing of the loading doors.
    (d) The master shall enter into the log book any opening of the 
doors in accordance with paragraph (a)(2) of this section setting forth 
the time of the opening of the doors and the circumstances warranting 
this action.

[CGD 89-037, 57 FR 41824, Sept. 11, 1992]



Sec. 167.65-40  Draft.

    The master of every nautical school ship over 50 gross tons shall, 
whenever leaving port, enter the maximum draft

[[Page 27]]

of his nautical school ship in the log book.



Sec. 167.65-42  Verification of vessel compliance with applicable stability requirements.

    (a) After loading and prior to departure and at all other times 
necessary to assure the safety of the vessel, the master shall determine 
that the vessel complies with all applicable stability requirements in 
the vessel's trim and stability book, stability letter, Certificate of 
Inspection, and Load Line Certificate, as the case may be, and then 
enter an attestation statement of the verification in the log book. The 
vessel may not depart until it is in compliance with these requirements.
    (b) When determining compliance with applicable stability 
requirements the vessel's draft, trim, and stability must be determined 
as necessary and any stability calculations made in support of the 
determination must be retained on board the vessel for the duration of 
the voyage.

[CGD 89-037, 57 FR 41824, Sept. 11, 1992]



Sec. 167.65-45  Notice to mariners; aids to navigation.

    (a) Officers are required to acquaint themselves with the latest 
information published by the Coast Guard and the National Imagery and 
Mapping Agency regarding aids to navigation, and neglect to do so is 
evidence of neglect of duty. It is desirable that nautical school ships 
navigating oceans and coastwise and Great Lakes waters shall have 
available in the pilothouse for convenient reference at all times a file 
of the applicable Notice to Mariners.
    (b) Weekly Notices to Mariners (Great Lakes Edition), published by 
the Commander, 9th Coast Guard District, contain announcements and 
information on changes in aids to navigation and other marine 
information affecting the safety of navigation on the Great Lakes. These 
notices may be obtained free of charge, by making application to 
Commander, 9th Coast Guard District.
    (c) Weekly Notices to Mariners (Worldwide coverage) are prepared 
jointly by the National Imagery and Mapping Agency, National Ocean 
Service, and the U.S. Coast Guard. They include changes in aids to 
navigation in assembled form for the 1st, 5th, 7th, Greater Antilles 
Section, 8th, 11th, 13th, 14th, and 17th Coast Guard Districts. Foreign 
marine information is also included in these notices. These notices are 
available without charge from the National Imagery and Mapping Agency, 
U.S. Collector of Customs of the major seaports in the United States and 
are also on file in the U.S. Consulates where they may be inspected.
    (d) As appropriate for the intended voyage, all nautical school 
ships must carry adequate and up-to-date--
    (1) Charts;
    (2) Sailing directions;
    (3) Coast pilots;
    (4) Light lists;
    (5) Notices to mariners;
    (6) Tide tables;
    (7) Current tables; and
    (8) All other nautical publications necessary. \1\
---------------------------------------------------------------------------

    \1\ For United States vessels in one or on the navigable waters of 
the United States, see 33 CFR 164.33.

[CGFR 66-33, 31 FR 15298, Dec. 6, 1966, as amended by CGFR 75-074, 42 FR 
5964, Jan. 31, 1977; CGD 95-028, 62 FR 51217, Sept. 30, 1997; USCG-2001-
10224, 66 FR 48621, Sept. 21, 2001]



Sec. 167.65-50  Posting placards of lifesaving signals.

    On all vessels to which this subpart applies there must be readily 
available to the deck officer of the watch a placard containing 
instructions for the use of the life saving signals set forth in 
regulation 16, chapter V, of the International Convention for Safety of 
Life at Sea, 1974. These signals must be used by vessels or persons in 
distress when communicating with lifesaving stations and maritime rescue 
units.

[CGD 95-027, 61 FR 26010, May 23, 1996]



Sec. 167.65-60  Examination of boilers and machinery by engineer.

    It shall be the duty of an engineer when he assumes charge of the 
boilers and machinery of a nautical school ship to examine the same 
forthwith and thoroughly, and if he finds any part thereof in bad 
condition, he shall immediately report the facts to the

[[Page 28]]

master, owner, or agent, and to the Officer in Charge, Marine 
Inspection, of the district, who shall thereupon investigate the matter 
and take such actions as may be necessary.



Sec. 167.65-65  Notice and reporting of casualty and voyage records.

    The requirements for providing notice and reporting of marine 
casualties and for retaining voyage records are contained in part 4 of 
this chapter.

[CGD 84-099, 52 FR 47536, Dec. 14, 1987]



Sec. 167.65-70  Reports of accidents, repairs, and unsafe boilers and machinery by engineers.

    (a) Before making repairs to a boiler of a nautical school ship the 
engineer in charge shall report, in writing, the nature of such repairs 
to the nearest Officer in Charge, Marine Inspection, where such repairs 
are to be made.
    (b) And it shall be the duty of all engineers when an accident 
occurs to the boilers or machinery in their charge tending to render the 
further use of such boilers or machinery unsafe until repairs are made, 
or when, by reason of ordinary wear, such boilers or machinery have 
become unsafe, to report the same to the Officer in Charge, Marine 
Inspection, immediately upon the arrival of the nautical school ship at 
the first port reached subsequent to the accident, or after the 
discovery of such unsafe condition by said engineer.



PART 168--CIVILIAN NAUTICAL SCHOOL VESSELS--Table of Contents




                  Subpart 168.01--Authority and Purpose

Sec.
168.01-1  Purpose of regulations.

                  Subpart 168.05--General Requirements

168.05-1  Application of passenger vessel inspection laws.
168.05-5  Application of passenger vessel inspection regulations.
168.05-10  Subdivision and stability.
168.05-15  Right of appeal.

         Subpart 168.10--Definitions of Terms Used in This Part

168.10-1  Nautical school vessels.
168.10-5  Civilian nautical school.

                     Subpart 168.15--Accommodations

168.15-1  Intent.
168.15-5  Location of crew spaces.
168.15-10  Construction.
168.15-15  Size.
168.15-20  Equipment.
168.15-25  Washrooms.
168.15-30  Toilet rooms.
168.15-35  Hospital space.
168.15-40  Lighting.
168.15-45  Heating and cooling.
168.15-50  Ventilation.
168.15-55  Screening.
168.15-60  Inspection.

    Authority: 46 U.S.C. 3305, 3306; 49 CFR 1.46.

    Source: CGFR 52-43, 17 FR 9543, Oct. 18, 1952, unless otherwise 
noted.



                  Subpart 168.01--Authority and Purpose



Sec. 168.01-1  Purpose of regulations.

    (a) The purpose of the regulations in this part is to set forth 
uniform minimum requirements for vessels, whether being navigated or 
not, which are used by or in connection with any civilian nautical 
school, except vessels of the Navy or Coast Guard.



                  Subpart 168.05--General Requirements



Sec. 168.05-1  Application of passenger vessel inspection laws.

    (a) All laws covering the inspection of passenger vessels are hereby 
made applicable to all vessels or other floating equipment used by or in 
connection with any civilian nautical school, whether such vessels or 
other floating equipment are being navigated or not, except vessels of 
the Navy or Coast Guard.



Sec. 168.05-5  Application of passenger vessel inspection regulations.

    Where the requirements are not covered specifically in this part, 
all the regulations applying to passenger vessels in subchapters E (Load 
Lines), F (Marine Engineering), H (Passenger Vessels), J (Electrical 
Engineering), K (Small Passenger Vessels Carrying More Than 150 
Passengers Or With Overnight Accommodations For More Than 49 
Passengers), P (Manning), Q (Specifications), T (Small Passenger 
Vessels), and W (Lifesaving Appliances

[[Page 29]]

and Arrangements) of this chapter are hereby made applicable to all 
vessels or other floating equipment used by or in connection with any 
civilian nautical school, whether such vessels or other floating 
equipment are being navigated or not, except vessels of the Navy or 
Coast Guard.

[CGD 84-069, 61 FR 25312, May 20, 1996, as amended at 63 FR 52816, Oct. 
1, 1998]



Sec. 168.05-10  Subdivision and stability.

    Each vessel must meet the applicable requirements in Subchapter S of 
this chapter.

[CGD 79-023, 48 FR 51010, Nov. 4, 1983]



Sec. 168.05-15  Right of appeal.

    Any person directly affected by a decision or action taken under 
this part, by or on behalf of the Coast Guard, may appeal therefrom in 
accordance with subpart 1.03 of this chapter.

[CGD 88-033, 54 FR 50381, Dec. 6, 1989]



         Subpart 168.10--Definitions of Terms Used in This Part



Sec. 168.10-1  Nautical school vessels.

    The term nautical school vessel means a vessel operated by or in 
connection with a nautical school or an educational institution under 
Section 13 of the Coast Guard Authorization Act of 1986.

[CGD 84-069, 61 FR 25312, May 20, 1996]



Sec. 168.10-5  Civilian nautical school.

    The term civilian nautical school means any school or branch thereof 
operated and conducted in the United States, except State nautical 
schools and schools operated by the United States or any agency thereof, 
which offers instruction for the primary purpose of training for service 
in the merchant marine.

[CGD 84-069, 61 FR 25312, May 20, 1996]



                     Subpart 168.15--Accommodations

    Source: CGD 95-027, 61 FR 26010, May 23, 1996, unless otherwise 
noted.



Sec. 168.15-1  Intent.

    The accommodations provided for members of the crew, passengers, 
cadets, students, instructors or any other persons at any time quartered 
on board a vessel to which this part applies must be securely 
constructed, properly lighted, heated, drained, ventilated, equipped, 
located, arranged and insulated from undue noise, heat and odors.



Sec. 168.15-5  Location of crew spaces.

    (a) Quarters must be located so that sufficient fresh air and light 
are obtainable compatible with accepted practice or good arrangement and 
construction.
    (b) Unless approved by the Commandant, quarters, must not be located 
forward of the collision bulkhead, nor may such section or sections of 
any deck head occupied by quarters be below the deepest load line.



Sec. 168.15-10  Construction.

    (a) The accommodations provided must be securely constructed, 
properly lighted, heated, drained, ventilated, equipped, located, 
arranged, and insulated from undue noise, heat, and odors.
    (b) All accommodations must be constructed and arranged so that they 
can be kept in a clean, workable, and sanitary condition.



Sec. 168.15-15  Size.

    (a) Sleeping accommodations must be divided into rooms, no one of 
which may berth more than six persons. The purpose for which each space 
is to be used and the number of persons it may accommodate, must be 
marked outside the space.
    (b) Each room must be of such size that there is at least 1.8 square 
meters (20 square feet) of deck area and a volume of at least 4.2 cubic 
meters (150 cubic feet) for each person accommodated. In measuring 
sleeping quarters, any furnishings contained therein are not to be 
deducted from the total volume or from the deck area.

[CGD 95-027, 61 FR 26010, May 23, 1996; 61 FR 35138, July 5, 1996]

[[Page 30]]



Sec. 168.15-20  Equipment.

    (a) Each person shall have a separate berth and not more than 1 
berth may be placed above another. The berths must be of metal 
framework. The overall size of a berth must not be less than 68 
centimeters (27 inches) wide by 190 centimeters (75 inches) long. Where 
2 tiers of berths are fitted, the bottom of the lower berth must not be 
less than 30 centimeters (12 inches) above the deck, and the bottom of 
the upper must not be less than 76 centimeters (30 inches) from both the 
bottom of the lower and from the deck overhead. The berths must not be 
obstructed by pipes, ventilating ducts, or other installations.
    (b) A metal locker must be provided for each person accommodated in 
a room.



Sec. 168.15-25  Washrooms.

    (a) There must be provided 1 shower for each 10 persons or fraction 
thereof and 1 wash basin for each 6 persons or fraction thereof for all 
persons who do not occupy rooms to which private or semi-private 
facilities are attached.
    (b) All wash basins and showers must be equipped with adequate 
plumbing, including hot and cold running fresh water.

[CGD 95-027, 61 FR 26010, May 23, 1996; 61 FR 35138, July 5, 1996]



Sec. 168.15-30  Toilet rooms.

    (a) There must be provided 1 toilet for each 10 persons or fraction 
thereof to be accommodated who do not occupy rooms to which private 
facilities are attached.
    (b) The toilet rooms must be located convenient to the sleeping 
quarters of the persons to which they are allotted but must not open 
directly into such quarters except when they are provided as private or 
semiprivate facilities.
    (c) Where more than 1 toilet is located in a space or compartment, 
each toilet must be separated by partitions.



Sec. 168.15-35  Hospital space.

    (a) Each vessel must be provided with a hospital space. This space 
must be situated with due regard for the comfort of the sick so that 
they may receive proper attention in all weather.
    (b) The hospital must be suitably separated from other spaces and 
must be used for the care of the sick and for no other purpose.
    (c) The hospital must be fitted with berths in the ratio of 1 berth 
to every 12 persons, but the number of berths need not exceed 6.
    (d) [Reserved]
    (e) The hospital must have a toilet, wash basin, and bathtub or 
shower conveniently located. Other necessary suitable equipment of a 
sanitary type such as a clothes locker, a table and a seat must be 
provided.



Sec. 168.15-40  Lighting.

    All quarters, including washrooms, toilet rooms, and hospital 
spaces, must be adequately lighted.



Sec. 168.15-45  Heating and cooling.

    All quarters must be adequately heated and cooled in a manner 
suitable to the purpose of the space.



Sec. 168.15-50  Ventilation.

    (a) All quarters must be adequately ventilated in a manner suitable 
to the purpose of the space and route of the vessel.
    (b) When mechanical ventilation is provided for sleeping rooms, 
washrooms, toilet rooms, hospital spaces, and messrooms, these spaces 
must be supplied with fresh air equal to at least 10 times the volume of 
the room each hour.



Sec. 168.15-55  Screening.

    Provision must be made to protect the quarters against the admission 
of insects.



Sec. 168.15-60  Inspection.

    The Officer in Charge, Marine Inspection, shall inspect the quarters 
of every such vessel at least once in each month or at such time as the 
vessel enters an American port and shall satisfy himself that such 
vessel is in compliance with the regulations in this part.

[[Page 31]]



PART 169--SAILING SCHOOL VESSELS--Table of Contents




                   Subpart 169.100--General Provisions

Sec.
169.101  Purpose.
169.103  Applicability.
169.107  Definitions.
169.109  Equivalents.
169.111  Administrative procedures.
169.112  Special consideration.
169.113  Right of appeal.
169.115  Incorporation by reference.
169.117  OMB control numbers.
169.119  Vessel status.
169.121  Loadlines.

              Subpart 169.200--Inspection and Certification

                        Certificate of Inspection

169.201  When required.
169.203  Description.
169.205  Obtaining or renewing a Certificate of Inspection.
169.207  Period of validity for a Certificate of Inspection.
169.209  Routes permitted.
169.211  Permit to proceed for repair.
169.213  Permit to carry excursion party.
169.215  Certificate of inspection amendment.
169.217  Posting.

                          Letter of Designation

169.218  Procedures for designating sailing school vessels.
169.219  Renewal of letter of designation.

                      Inspection for Certification

169.220  General.
169.221  Initial inspection for certification.
169.222  Scope of inspection for certification.
169.223  Subsequent inspections for certification.

                              Reinspection

169.225  Annual inspection.
169.226  Periodic inspection.
169.227  Certificate of Inspection: Conditions of validity.

                        Drydocking or Hauling Out

169.229  Drydock examination, internal structural examination, and 
          underwater survey intervals.
169.230  Underwater Survey in Lieu of Drydocking (UWILD).
169.231  Definitions relating to hull examinations.
169.233  Notice and plans required.
169.234  Integral fuel oil tank examinations.

                         Repairs and Alterations

169.235  Permission required.
169.236  Inspection and testing required.

                               Inspections

169.237  Inspection standards.
169.239  Hull.
169.241  Machinery.
169.243  Electrical.
169.245  Lifesaving equipment.
169.247  Firefighting equipment.
169.249  Pressure vessels.
169.251  Steering apparatus.
169.253  Miscellaneous systems and equipment.
169.255  Sanitary inspection.
169.257  Unsafe practices.
169.259  Limitations of inspections.

              Subpart 169.300--Construction and Arrangement

                                  Plans

169.305  Plans required.
169.307  Plans for sister vessels.

                             Hull Structure

169.309  Structural standards.
169.311  Fire protection.
169.313  Means of escape.
169.315  Ventilation (other than machinery spaces).

                              Living Spaces

169.317  Accommodations.
169.319  Washrooms and toilets.
169.323  Furniture and furnishings.

                            Rails and Guards

169.327  Deck rails.
169.329  Storm rails.
169.331  Guards in hazardous locations.

    Subpart 169.400--Watertight Integrity, Subdivision, and Stability

169.401  Applicability.

         Subpart 169.500--Lifesaving and Firefighting Equipment

                      Lifesaving Equipment--General

169.505  Equipment installed but not required.
169.507  Responsibility of master.
169.509  Approval for repairs and alterations.

                      Primary Lifesaving Equipment

169.513  Types of primary equipment.
169.515  Number required.
169.517  Rescue boat.
169.519  Availability.
169.521  Stowage.

[[Page 32]]

               Equipment for Primary Lifesaving Apparatus

169.525  General.
169.527  Required equipment for lifeboats.
169.529  Description of lifeboat equipment.
169.535  Required equipment for lifefloats.
169.537  Description of equipment for lifefloats.

                       Personal Flotation Devices

169.539  Type required.
169.541  Number required.
169.543  Distribution and stowage.
169.545  Markings.

                     Additional Lifesaving Equipment

169.549  Ring lifebuoys and water lights.
169.551  Exposure suits.
169.553  Pyrotechnic distress signals.
169.555  Emergency position indicating radio beacon (EPIRB).
169.556  Work vests.

                         Firefighting Equipment

169.559  Fire pumps.
169.561  Firemain.
169.563  Firehose.
169.564  Fixed extinguishing system, general.
169.565  Fixed carbon dioxide system.
169.567  Portable extinguishers.
169.569  Fire axes.

                Subpart 169.600--Machinery and Electrical

169.601  General.

                Internal Combustion Engine Installations

169.605  General.
169.607  Keel cooler installations.
169.608  Non-integral keel cooler installations.
169.609  Exhaust systems.
169.611  Carburetors.

                              Fuel Systems

169.613  Gasoline fuel systems.
169.615  Diesel fuel systems.

                            Steering Systems

169.618  General.
169.619  Reliability.
169.621  Communications.
169.622  Rudder angle indicators.
169.623  Power-driven steering systems.

                               Ventilation

169.625  Compartments containing diesel machinery.
169.627  Compartments containing diesel fuel tanks.
169.629  Compartments containing gasoline machinery or fuel tanks.
169.631  Separation of machinery and fuel tank spaces from accommodation 
          spaces.

                             Piping Systems

169.640  General.
169.642  Vital systems.

                              Bilge Systems

169.650  General.
169.652  Bilge piping.
169.654  Bilge pumps.

                               Electrical

169.662  Hazardous locations.

 Electrical Installations Operating at Potentials of Less Than 50 Volts 
                 on Vessels of Less Than 100 Gross Tons

169.664  Applicability.
169.665  Name plates.
169.666  Generators and motors.
169.667  Switchboards.
169.668  Batteries.
169.669  Radiotelephone equipment.
169.670  Circuit breakers.
169.671  Accessories.
169.672  Wiring for power and lighting circuits.
169.673  Installation of wiring for power and lighting circuits.

Electrical Installations Operating at Potentials of 50 Volts or More on 
                   Vessels of Less Than 100 Gross Tons

169.674  Applicability.
169.675  Generators and motors.
169.676  Grounded electrical systems.
169.677  Equipment protection and enclosure.
169.678  Main distribution panels and switchboards.
169.679  Wiring for power and lighting circuits.
169.680  Installation of wiring for power and lighting circuits.
169.681  Disconnect switches and devices.
169.682  Distribution and circuit loads.
169.683  Overcurrent protection, general.
169.684  Overcurrent protection for motors and motor branch circuits.
169.685  Electric heating and cooking equipment.
169.686  Shore power.

     Electrical Installations on Vessels of 100 Gross Tons and Over

169.687  General.
169.688  Power supply.
169.689  Demand loads.
169.690  Lighting branch circuits.
169.691  Navigation lights.
169.692  Remote stop stations.
169.693  Engine order telegraph systems.

  Subpart 169.700--Vessel Control, Miscellaneous Systems, and Equipment

169.703  Cooking and heating.
169.705  Mooring equipment.

[[Page 33]]

169.709  Compass.
169.711  Emergency lighting.
169.713  Engineroom communication system.
169.715  Radio.
169.717  Fireman's outfit.
169.721  Storm sails and halyards (exposed and partially protected 
          waters only).
169.723  Safety belts.
169.725  First aid kit.
169.726  Radar reflector.

                                Markings

169.730  General alarm bell switch.
169.731  General alarm bells.
169.732  Carbon dioxide alarm.
169.733  Fire extinguishing branch lines.
169.734  Fire extinguishing system controls.
169.735  Fire hose stations.
169.736  Self-contained breathing apparatus.
169.737  Hand portable fire extinguishers.
169.738  Emergency lights.
169.739  Lifeboats.
169.740  Liferafts and lifefloats.
169.741  Personal flotation devices and ring life buoys.
169.743  Portable magazine chests.
169.744  Emergency position indicating radio beacon (EPIRB).
169.745  Escape hatches and emergency exits.
169.746  Fuel shutoff valves.
169.747  Watertight doors and hatches.
169.750  Radio call sign.
169.755  Draft marks and draft indicating systems.

                       Subpart 169.800--Operations

169.805  Exhibition of licenses.
169.807  Notice of casualty.
169.809  Charts and nautical publications.
169.813  Station bills.
169.815  Emergency signals.
169.817  Master to instruct ship's company.
169.819  Manning of lifeboats and liferafts.
169.821  Patrol person.
169.823  Openings.
169.824  Compliance with provisions of certificate of inspection.
169.825  Wearing of safety belts.

                     Tests, Drills, and Inspections

169.826  Steering, communications and control.
169.827  Hatches and other openings.
169.829  Emergency lighting and power systems.
169.831  Emergency position indicating radio beacon (EPIRB).
169.833  Fire and boat drills.
169.837  Lifeboats, liferafts, and lifefloats.
169.839  Firefighting equipment.
169.840  Verification of vessel compliance with applicable stability 
          requirements.
169.841  Logbook entries.
169.847  Lookouts.
169.849  Posting placards containing instructions for launching and 
          inflating inflatable liferafts.
169.853  Display of plans.
169.855  Pre-underway training.
169.857  Disclosure of safety standards.

    Authority: 33 U.S.C. 1321(j); 46 U.S.C. 3306, 6101; Pub. L. 103-206, 
107 Stat. 2439; E.O. 11735, 38 FR 21243, 3 CFR, 1971-1975 Comp., p. 793; 
49 CFR 1.45, 1.46; Sec. 169.117 also issued under the authority of 44 
U.S.C. 3507.

    Source: CGD 83-005, 51 FR 896, Jan. 9, 1986, unless otherwise noted.



                   Subpart 169.100--General Provisions



Sec. 169.101  Purpose.

    The regulations in this part set forth uniform requirements which 
are suited to the particular characteristics and specialized operations 
of sailing school vessels as defined in Title 46, United States Code 
section 2101(30).



Sec. 169.103  Applicability.

    (a) This subchapter applies to each domestic vessel operating as a 
sailing school vessel.
    (b) This subchapter does not apply to--
    (1) Any vessel operating exclusively on inland waters, which are not 
navigable waters of the United States;
    (2) Any vessel while laid up, dismantled, and out of service;
    (3) Any vessel with title vested in the United States and which is 
used for public purposes except vessels of the U.S. Maritime 
Administration;
    (4) Any vessel carrying one or more passengers;
    (5) Any vessel operating under the authority of a current valid 
certificate of inspection issued per the requirements of 46 CFR chapter 
I, subchapter H or T, 46 CFR parts 70 through 78 and parts 175 through 
187, respectively; or
    (6) Any foreign vessel.
    (c) A vessel which engages in trade or commerce or carries one or 
more passengers, cannot operate under a certificate of inspection as a 
sailing school vessel, but must meet the rules and regulations governing 
the service in which it is engaged.

CGD 83-005, 51 FR 896, Jan. 9, 1986, as amended by USCG-1999-5040, 67 FR 
34799, May 15, 2002]

[[Page 34]]



Sec. 169.107  Definitions.

     Anniversary date means the day and the month of each year, which 
corresponds to the date of expiration of the Certificate of Inspection.
     Approved means accepted by the Commandant unless otherwise stated.
     Coast Guard District Commander means an officer of the Coast Guard 
designated by the Commandant to command all Coast Guard activities 
within a district.
     Commandant means the Commandant of the Coast Guard or an authorized 
representative of the Commandant.
    Demise charter means a legally binding document for a term of one 
year or more under which for the period of the charter, the party who 
leases or charters the vessel, known as the demise or bareboat 
charterer, assumes legal responsibility for all of the incidents of 
ownership, including insuring, manning, supplying, repairing, fueling, 
maintaining and operating the vessel. The term demise or bareboat 
charterer is synonymous with ``owner pro hac vice''.
     Existing vessel means a sailing school vessel, whose keel was laid 
prior to (January 9, 1986), which applies for certification as a sailing 
school vessel prior to (January 9, 1987), and whose initial inspection 
for certification is completed prior to (January 9, 1988).
     Exposed Waters means waters more than 37 kilometers (20 nautical 
miles) from the mouth of a harbor of safe refuge, or other waters the 
Officer in Charge, Marine Inspection determines to present special 
hazards due to weather or other circumstances.
     Headquarters means the Office of the Commandant, United States 
Coast Guard, Washington, DC 20593.
     Instructor means any person who is aboard a sailing school vessel 
for the purpose of providing sailing instruction and is not an officer, 
operator, or member of the crew required by regulation to be aboard the 
vessel, and has not paid any consideration, either directly or 
indirectly for his or her carriage on the vessel.
     Length means the mean length. It is the mean or average between 
length on deck (LOD) and length between perpendiculars (LBP). Length on 
deck (LOD) means the length between the forward-most and after-most 
points on the weather deck, excluding sheer. Length between 
perpendiculars (LBP) means the horizontal distance between the 
perpendiculars taken at the forward-most and after-most points on a 
vessel's waterline corresponding to the deepest operating draft.
     Marine Inspector means any person from the civilian or military 
branch of the Coast Guard assigned by the Officer in Charge, Marine 
Inspection or any other person designated by the Coast Guard to perform 
duties with respect to the inspection, enforcement, and administration 
of vessel safety and navigation laws and regulations.
     Master means the senior licensed individual having command of the 
vessel.
     New vessel means a sailing school vessel which is not an existing 
vessel.
     Officer In Charge, Marine Inspection (OCMI) means any person from 
the civilian or military branch of the Coast Guard designated as such by 
the Commandant and who, under the direction of the Coast Guard District 
Commander, is in charge of the inspection zone in which the vessel is 
located for the performance of duties with respect to the inspections, 
enforcement, and administration of vessel safety and navigation laws and 
regulations.
     Partially Protected Waters means--
    (1) Waters within 37 kilometers (20 nautical miles) of a harbor of 
safe refuge, unless determined by the OCMI to be exposed waters; and
    (2) Those portions of rivers, harbors, lakes, etc. which the OCMI 
determines not to be sheltered.
    Passenger on a sailing school vessel means an individual carried on 
the vessel except--
    (1) The owner or an individual representative of the owner or, in 
the case of a vessel under charter, an individual charterer or 
individual representative of the charterer;
    (2) The master;
    (3) A member of the crew engaged in the business of the vessel, who 
has not contributed consideration for carriage, and who is paid for 
onboard services;
    (4) An employee of the owner of the vessel engaged in the business 
of the owner, except when the vessel is operating under a demise 
charter;

[[Page 35]]

    (5) An employee of the demise charterer of the vessel engaged in the 
business of the demise charterer; or
    (6) A sailing school instructor or sailing school student. Protected 
Waters means sheltered waters presenting no special hazards such as most 
rivers, harbors, lakes, etc.
     Qualified Organization means an educational organization, State, or 
political subdivision of a State that owns or demise charters, and 
operates a sailing school vessel for the purpose of providing sailing 
instruction. The educational organization must satisfy the requirements 
of section 501(c)(3) of the Internal Revenue Code of 1954 and must be 
exempt from tax under section 501(a) of such Code, as now or hereafter 
amended.
     Recognized Classification Society means the American Bureau of 
Shipping or other classification society recognized by the Commandant.
     Rules of the Road means the statutory and regulatory rules 
governing navigation of vessels.
    Sailing instruction means teaching, research, and practical 
experience in operating vessels propelled primarily by sail, and may 
include any subject related to that operation and the sea, including 
seamanship, navigation, oceanography, other nautical and marine 
sciences, and maritime history and literature. In conjunction with any 
of those subjects, ``sailing instruction'' also includes instruction in 
mathematics and language arts skills to a sailing school student with a 
learning disability.
     Sailing School Student means any person who is aboard a sailing 
school vessel for the purpose of receiving sailing instruction.
     Sailing School Vessel means a vessel of less than 500 gross tons, 
carrying six or more individuals who are sailing school students or 
sailing school instructors, principally equipped for propulsion by sail 
even if the vessel has an auxiliary means of propulsion, and owned or 
demise chartered and operated by a qualified organization during such 
times as the vessel is operated exclusively for the purposes of sailing 
instruction.
     Ship's Company means the officers and crew of a sailing school 
vessel, sailing school students, and sailing school instructors.
     Watertight means designed and constructed to withstand a static 
head of water without any leakage, except that watertight equipment 
means enclosed equipment constructed so that a stream of water from a 
hose (not less than 1 inch in diameter) under head of about 35 feet from 
a distance of about 10 feet, and for a period of 5 minutes, can be 
played on the apparatus without leakage.
     Weathertight means that water will not penetrate into the unit in 
any sea condition, except that weathertight equipment means equipment 
constructed or protected so that exposure to a beating rain will not 
result in the entrance of water.

[CGD 83-005, 51 FR 897, Jan. 9, 1986; 51 FR 3785, Jan. 30, 1986, as 
amended by USCG-1999-4976, 65 FR 6507, Feb. 9, 2000; USCG-1999-5040, 67 
FR 34799, May 15, 2002]



Sec. 169.109  Equivalents.

    Substitutes for a fitting, appliance, apparatus, or equipment, may 
be accepted by the Commandant if the substituted item is as effective 
and consistent with the requirements and minimum safety standards 
specified in this subchapter.



Sec. 169.111  Administrative procedures.

    (a) Upon receipt of a written application for inspection, the 
Officer in Charge, Marine Inspection assigns a marine inspector to 
inspect the vessel at a mutually agreed upon time and place.
    (b) The owner or a representative shall be present during the 
inspection.
    (c) If during the inspection, the vessel or its equipment is found 
not to conform to the requirements of law or the regulations in this 
subchapter, the marine inspector lists all requirements which have not 
been met and presents the list to the owner or a representative.
    (d) In any case where the owner of a vessel or his representative 
desires further clarification of, or reconsideration of any requirement 
placed against his vessel, he may discuss the matter with the Officer in 
Charge, Marine Inspection.

[[Page 36]]



Sec. 169.112  Special consideration.

    In applying the provisions of this part, the Officer in Charge, 
Marine Inspection, may give special consideration to departures from the 
specific requirements when special circumstances or arrangements warrant 
such departures and an equivalent level of safety is provided.



Sec. 169.113  Right of appeal.

    Any person directly affected by a decision or action taken under 
this part, by or on behalf of the Coast Guard, may appeal therefrom in 
accordance with subpart 1.03 of this chapter.

[CGD 88-033, 54 FR 50381, Dec. 6, 1989]



Sec. 169.115  Incorporation by reference.

    (a) In this subchapter portions or the entire text of certain 
industrial standards and specifications are referred to as the governing 
requirements for materials, equipment, tests, or procedures to be 
followed. These standards and specification requirements specifically 
referred to in this subchapter are the governing requirements for the 
subject matters covered unless specifically limited, modified, or 
replaced by other regulations in this subchapter.
    (b) These materials are incorporated by reference into this part 
with the approval of the Director of the Federal Register. The Office of 
the Federal Register publishes a table, ``Material Approved for 
Incorporation by Reference,'' which appears in the Finding Aids section 
of this volume. In that table is found citations to the particular 
sections of this part where the material is incorporated with the 
approval by the Director of the Federal Register. To enforce any edition 
other than the one listed in paragraph (c) of this section, notice of 
change must be published in the Federal Register and the material must 
be made available. All approved material is on file at the Office of the 
Federal Register, Washington, DC 20408 and at the U.S. Coast Guard, 
Office of Design and Engineering Standards, Washington DC 20593.
    (c) The materials approved for incorporation by reference in this 
part are:

(1) American Boat and Yacht Council (ABYC), 3069 Solomons Island Road, 
Edgewater, MD 21037
  P-1-73--``Safe Installation of Exhaust Systems for Propulsion and 
Auxiliary Engines'' (1973)
  H-24.9 (g) and (h)--``Fuel Strainers and Fuel Filters'' (1975)
  H-2.5--``Ventilation of Boats Using Gasoline--Design and 
Construction'' (1981)
  A-1-78--``Marine LPG--Liquefied Petroleum Gas Systems''
  A-3-70--``Recommended Practices and Standards Covering Galley Stoves''
  A-22-78--``Marine CNG--Compressed Natural Gas Systems''
(2) National Bureau of Standards, c/o Superintendent of Documents, U.S. 
Government Printing Office, Washington D.C. 20402
  Special Pub. 440 (SD Cat. No. C13.10:490), ``Color: Universal Language 
and Dictionary of Names'', 1976
(3) National Fire Protection Association (NFPA), 1 Batterymarch Park, 
Quincy, MA 02269
  302--``Pleasure and Commercial Motor Craft,'' Chapter 6 (1980)
  306--``Control of Gas Hazards on Vessels'' (1980)
  70--``National Electrical Code,'' Article 310-8 and Table 310-13 
(1980)
(4) Naval Publications and Forms Center, Customer Service Code 1052, 
5801 Tabor Ave., Philadelphia, PA 19120
  Federal Specification ZZ-H-451 ``Hose, Fire, Woven-Jacketed Rubber or 
Cambric-Lined, with Couplings, F.''
(5) Underwriters Laboratories, Inc. (UL), 12 Laboratory Drive, Research 
Triangle Park, NC 27709-3995
  UL 19-78--``Woven Jacketed, Rubber Lined Fire Hose''

[CGD 83-005, 51 FR 896, Jan. 9, 1986, as amended by CGD 95-072, 60 FR 
50468, Sept. 29, 1995; CGD 96-041, 61 FR 50734, Sept. 27, 1996; USCG-
1999-6216, 64 FR 53228, Oct. 1, 1999]



Sec. 169.117  OMB control numbers.

    (a) Purpose. This section collects and displays the control numbers 
assigned to information collection and recordkeeping requirements in 
this subchapter by the Office of Management

[[Page 37]]

and Budget (OMB) pursuant to the Paperwork Reduction Act of 1980 (44 
U.S.C. 3501 et seq.). The Coast Guard intends that this section comply 
with the requirements of 44 U.S.C. 3507(f) which requires that agencies 
display a current control number assigned by the Director of OMB for 
each approved agency information collection requirement.
    (b) Display.

------------------------------------------------------------------------
                46 CFR part--                       OMB control No.
------------------------------------------------------------------------
Sec.  169.111................................                  2115-0517
Sec.  169.201................................                  2115-0517
Sec.  169.205................................      2115-0007, 2115-0517,
                                                               2115-0546
Sec.  169.211................................                  2115-0517
Sec.  169.213................................                  2115-0517
Sec.  169.215................................                  2115-0517
Sec.  169.217................................                  2115-0517
Sec.  169.218................................                  2115-0546
Sec.  169.219................................                  2115-0546
Sec.  169.233................................                  2115-0554
Sec.  169.235................................                  2115-0517
Sec.  169.305................................                  2115-0095
Sec.  169.509................................                  2115-0132
Sec.  169.807................................                  2115-0003
Sec.  169.813................................                  2115-0546
Sec.  169.840................................                  2115-0589
Sec.  169.841................................       2115-0546, 2115-0071
Sec.  169.857................................                 2115-0546.
------------------------------------------------------------------------


[CGD 83-005, 51 FR 896, Jan. 9, 1986, as amended by CGD 88-072, 53 FR 
34298, Sept. 6, 1988; CGD 89-037, 57 FR 41824, Sept. 11, 1992]



Sec. 169.119  Vessel status.

    For the purpose of 46 U.S.C. 11101, 46 App. U.S.C. 291 and 46 App. 
U.S.C. 883 a sailing school vessel is not deemed a merchant vessel or a 
vessel engaged in trade or commerce.



Sec. 169.121  Loadlines.

    Sailing school vessels must meet the applicable loadline regulations 
contained in Subchapter E (Load Lines) of this chapter.



              Subpart 169.200--Inspection and Certification

                        Certificate of Inspection



Sec. 169.201  When required.

    (a) No sailing school vessel shall be operated without a valid 
Certificate of Inspection, Form CG-3753.
    (b) Except as noted in this subpart, each sailing school vessel 
inspected and certificated under the provisions of this subchapter must, 
during the tenure of the certificate, be in full compliance with the 
terms of the certificate when carrying six or more individuals who are 
sailing school students or sailing school instructors.
    (c) If necessary to prevent delay of the vessel, a temporary 
Certificate of Inspection, Form CG-854, is issued pending the issuance 
and delivery of the regular Certificate of Inspection, Form CG-3753. The 
temporary certificate is carried in the same manner as the regular 
certificate and is considered the same as the regular certificate of 
inspection which it represents.



Sec. 169.203  Description.

    The certificate of inspection issued to a vessel describes the 
vessel, the route which it may travel, the minimum manning requirements, 
the major lifesaving equipment carried, the minimum fire extinguishing 
equipment and life preservers required to be carried, the maximum number 
of sailing school students and instructors and the maximum number of 
persons which may be carried, the name of the owner and operator, and 
such conditions of operations as may be determined by the Officer in 
Charge, Marine Inspection.



Sec. 169.205  Obtaining or renewing a Certificate of Inspection.

    (a) A qualified organization attempting to obtain or renew a 
certificate of inspection for a vessel must submit to the Coast Guard 
Officer in Charge, Marine Inspection located in or nearest the port at 
which the inspection is to be made, the following--
    (1) An application for inspection on Form CG-3752; and
    (2) Evidence that the vessel has been designated as a sailing school 
vessel or an application for designation, as set forth in Sec. 169.218; 
and
    (3) Information concerning the program's age and physical 
qualifications for students and instructors and the ratio of students to 
instructors.
    (b) The application for initial inspection of a vessel being newly 
constructed or converted must be submitted prior to the start of such 
construction or conversion.
    (c) The construction, arrangement and equipment of all vessels must 
be

[[Page 38]]

acceptable to the cognizant Officer in Charge, Marine Inspection, as a 
prerequisite of the issuance of the initial certificate of inspection. 
Acceptance will be based on the information, specifications, drawings 
and calculations available to the Officer in Charge, Marine Inspection, 
and on the successful completion of an initial inspection for 
certification.
    (d) You must submit a written application for an inspection for 
certification to the cognizant Officer in Charge, Marine Inspection. To 
renew a Certificate of Inspection, you must submit an application at 
least 30 days before the expiration of the vessel's current certificate. 
Applications are available at any U.S. Coast Guard Marine Safety Office 
or Marine Inspection Office. When renewing a Certificate of Inspection, 
you must schedule an inspection for certification within the 3 months 
before the expiration date of the current Certificate of Inspection.
    (e) The condition of the vessel and its equipment must be acceptable 
to the cognizant Officer in Charge, Marine Inspection, as a prerequisite 
of the certificate of inspection renewal. Acceptance will be based on 
the condition of the vessel as found at the inspection for 
certification.

[CGD 83-005, 51 FR 896, Jan. 9, 1986, as amended by USCG-1999-4976, 65 
FR 6507, Feb. 9, 2000]



Sec. 169.207  Period of validity for a Certificate of Inspection.

    (a) A Certificate of Inspection is valid for 5 years.
    (b) Certificates of inspection may be revoked, or suspended and 
withdrawn by the Officer in Charge, Marine Inspection, at any time for 
noncompliance with the provisions of this subchapter or requirements 
established thereunder.

[CGD 83-005, 51 FR 896, Jan. 9, 1986, as amended by USCG-1999-4976, 65 
FR 6507, Feb. 9, 2000]



Sec. 169.209  Routes permitted.

    (a) The area of operation for each vessel is designated by the 
Officer in Charge, Marine Inspection and recorded on its Certificate of 
Inspection. Each area of operation is described on the Certificate of 
Inspection under the major headings ``exposed waters,'' ``partially 
protected waters,'' or ``protected waters,'' as applicable. Further 
limitations imposed or extensions granted are described by reference to 
bodies of waters, geographical points, distance from geographical 
points, distances from land, depths of channel, seasonal limitations, 
etc.
    (b) Operation of vessels on routes of lesser severity than those 
specifically described or designated on the Certificate of Inspection 
are permitted, unless expressly prohibited on the Certificate of 
Inspection. The general order of severity is: exposed, partially 
protected, and protected waters.



Sec. 169.211  Permit to proceed for repair.

    (a) The Officer in Charge, Marine Inspection, may issue a permit to 
proceed to another port for repair, Form CG-948, to a vessel if in his 
judgment it can be done with safety even if the Certificate of 
Inspection of the vessel has expired or is about to expire.
    (b) The permit is issued only upon the written application of the 
master, owner, or agent of the vessel.
    (c) The permit states upon its face the conditions under which it is 
issued and that guests may not be carried when operating under the 
permit. The permit must be carried in a manner similar to that described 
in Sec. 169.217(a) for a certificate of inspection.



Sec. 169.213  Permit to carry excursion party.

    (a) A vessel may be permitted to engage in a temporary excursion 
operation with a greater number of persons and/or on a more extended 
route than permitted by its certificate of inspection when in the 
opinion of the Officer in Charge, Marine Inspection, the operation can 
be undertaken with safety. A ``Permit To Carry Excursion Party'' Form 
CG-949, is a prerequisite of such an operation.
    (b) Any Officer in Charge, Marine Inspection, having jurisdiction 
may issue a permit to carry an excursion party upon the written 
application of the operator, owner or agent of the vessel.
    (c) The OCMI will reevaluate the vessel's sailing instruction 
program to ensure that the permit fits within the scope of the training 
program and that

[[Page 39]]

the vessel continues to meet the definition of a sailing school vessel.
    (d) The OCMI may require an inspection prior to the issuance of a 
permit to carry an excursion party.
    (e) The permit states upon its face the conditions under which it is 
issued, a reminder about the prohibition against carrying passengers, 
the number of persons the vessel may carry, the crew required, and 
additional lifesaving or safety equipment required, the route for which 
the permit is granted, and the dates on which the permit is valid.
    (f) The permit must be carried with the certificate of inspection. 
Any vessel operating under a permit to carry an excursion party must be 
in full compliance with the terms of its certificate of inspection as 
supplemented by the permit.



Sec. 169.215  Certificate of inspection amendment.

    (a) An amended certificate of inspection may be issued at any time 
by any Officer in Charge, Marine Inspection. The amended certificate of 
inspection replaces the original. An amended certificate of inspection 
may be issued to authorize and record a change in the character of a 
vessel or in its route, equipment, ownership, operator, etc., from that 
specified in the current certificate of inspection.
    (b) A request for an amended certificate of inspection must be made 
to the Officer in Charge, Marine Inspection, by the master, operator, 
owner, or agent of the vessel at any time there is a change in the 
character of a vessel or in its route, equipment, ownership, operation 
etc., as specified in its current certificate of inspection.
    (c) The OCMI may require an inspection prior to the issuance of an 
amended certificate of inspection.



Sec. 169.217  Posting.

    The certificate of inspection must be framed under glass or other 
suitable transparent material and posted in a conspicuous place on the 
vessel except on open boats where the certificate may be retained in a 
watertight container, which is secured to the vessel.

                          Letter of Designation



Sec. 169.218  Procedures for designating sailing school vessels.

    (a) Upon written request by a qualified institution, a determination 
is made by the OCMI whether the vessel may be designated as a sailing 
school vessel.
    (b) The request should contain sufficient information to allow the 
OCMI to make this determination. At a minimum the following items must 
be submitted:
    (1) A detailed description of the vessel, including its 
identification number, owner, and charterer.
    (2) A specific operating plan stating precisely the intended use of 
the vessel and the intended course of instruction for sailing school 
students.
    (3) A copy of the Internal Revenue Service designation as a non-
profit, tax-exempt, organization under sections 501(a) and 501(c)(3) of 
the Internal Revenue Code.
    (4) An affidavit certifying that the owner or charterer has 
financial resources to meet any liability incurred for death or injury 
to sailing school students or sailing school instructors on voyages 
aboard the vessel, in an amount not less than $50,000 for each student 
and instructor.
    (5) Any additional information as requested by the Officer in 
Charge, Marine Inspection.
    (c) If a designation is granted it is indicated on the certificate 
of inspection and remains valid for the duration of the certificate, 
provided all operating conditions remain unchanged.
    (d) In the event of a change, the institution must advise the OCMI 
who issued the designation. After reviewing the pertinent information 
concerning the change, the OCMI shall determine if the vessel is 
eligible to retain its designation as a sailing school vessel.



Sec. 169.219  Renewal of letter of designation.

    At least 60 days prior to the expiration date of the certificate of 
inspection, a request for renewal must be submitted in the same manner 
as described in Sec. 169.218. If the request for renewal is submitted to 
the OCMI who made the initial determination and all

[[Page 40]]

operating conditions remain unchanged, the information need not be 
resubmitted.

                      Inspection for Certification



Sec. 169.220  General.

    (a) An inspection is required before the issuance of a certificate 
of inspection.
    (b) An inspection for certification is not made until after receipt 
of the information required in Sec. 169.205(a) of this subchapter.



Sec. 169.221  Initial inspection for certification.

    (a) The initial inspection includes an inspection of the hull 
structure, yards, masts, spars, rigging, sails, machinery, and 
equipment, including unfired pressure vessels.
    (b) The initial inspection of a vessel being newly constructed or 
converted normally consists of a series of inspections during the 
construction or conversion.
    (c) The inspection ensures that the vessel and its equipment comply 
with the regulations in this subchapter to the extent they are 
applicable to the vessel being inspected, and are in accordance with 
approved plans. The inspection also ensures that the materials, 
workmanship and condition of all parts of the vessel and its machinery 
and equipment are in all respects satisfactory for the service intended, 
and that the vessel is in possession of a valid certificate issued by 
the Federal Communications Commission, if required.
    (d) Before construction is started, the owner, operator, or builder 
must develop plans indicating the proposed arrangement and construction 
of the vessel. This list of plans to be developed and the required 
disposition of these plans are set forth in Sec. 169.305.



Sec. 169.222  Scope of inspection for certification.

    Items normally included in an Inspection for Certification are:
    (a) Structure.
    (b) Watertight integrity.
    (c) Pressure vessels and appurtenances.
    (d) Piping.
    (e) Auxiliary machinery.
    (f) Steering apparatus.
    (g) Electrical installations.
    (h) Lifesaving appliances.
    (i) Navigation equipment.
    (j) Fire detecting and extinguishing systems.
    (k) Pollution prevention equipment.
    (l) Sanitary conditions.
    (m) Fire hazards.
    (n) Verification of valid certificates issued by the Federal 
Communications Commission.
    (o) Lights and signals required by navigation rules.
    (p) Bilge and ballast systems.
    (q) Rigging, yards, masts, spars, and sails.



Sec. 169.223  Subsequent inspections for certification.

    An inspection for renewal of a certificate of inspection includes an 
inspection of the structure, machinery, yards, spars, masts, rigging, 
sails, and equipment. The inspection ensures that the vessel is in 
satisfactory condition, fit for the service intended and complies with 
the applicable regulations in this subchapter.

                              Reinspection



Sec. 169.225  Annual inspection.

    (a) Your vessel must undergo an annual inspection within 3 months 
before or after each anniversary date, except as specified in 
Sec. 169.226.
    (b) You must contact the cognizant Officer in Charge, Marine 
Inspection to schedule an inspection at a time and place which he or she 
approves. No written application is required.
    (c) The scope of the annual inspection is the same as the inspection 
for certification as specified in Sec. 169.222 but in less detail unless 
the cognizant marine inspector finds deficiencies or determines that a 
major change has occurred since the last inspection. If deficiencies are 
found or a major change to the vessel has occurred, the marine inspector 
will conduct an inspection more detailed in scope to ensure that the 
vessel is in satisfactory condition and fit for the service for which it 
is intended. If your vessel passes the annual inspection, the marine 
inspector will

[[Page 41]]

endorse your current Certificate of Inspection.
    (d) If the annual inspection reveals deficiencies in your vessel's 
maintenance, you must make any or all repairs or improvements within the 
time period specified by the Officer in Charge, Marine Inspection.
    (e) Nothing in this subpart limits the marine inspector from 
conducting such tests or inspections he or she deems necessary to be 
assured of the vessel's seaworthiness.

[USCG-1999-4976, 65 FR 6507, Feb. 9, 2000]



Sec. 169.226  Periodic inspection.

    (a) Your vessel must undergo a periodic inspection within 3 months 
before or after the second or third anniversary of the date of your 
vessel's Certificate of Inspection. This periodic inspection will take 
the place of an annual inspection.
    (b) You must contact the cognizant Officer in Charge, Marine 
Inspection to schedule an inspection at a time and place which he or she 
approves. No written application is required.
    (c) The scope of the periodic inspection is the same as that for the 
inspection for certification, as specified in Sec. 169.222. The Officer 
in Charge, Marine Inspection will insure that the vessel is in 
satisfactory condition and fit for the service for which it is intended. 
If your vessel passes the periodic inspection, the marine inspector will 
endorse your current Certificate of Inspection.
    (d) If the periodic inspection reveals deficiencies in your vessel's 
maintenance, you must make any or all repairs or improvements within the 
time period specified by the Officer in Charge, Marine Inspection.
    (e) Nothing in this subpart limits the marine inspector from 
conducting such tests or inspections he or she deems necessary to be 
assured of the vessel's seaworthiness.

[USCG-1999-4976, 65 FR 6507, Feb. 9, 2000]



Sec. 169.227  Certificate of Inspection: Conditions of validity.

    To maintain a valid Certificate of Inspection, you must complete 
your annual and periodic inspections within the periods specified in 
Secs. 169.225 and 169.226 respectively and your Certificate of 
Inspection must be endorsed.

[USCG-1999-4976, 65 FR 6507, Feb. 9, 2000]

                        Drydocking or Hauling Out



Sec. 169.229  Drydock examination, internal structural examination, and underwater survey intervals.

    (a) Except as provided for in paragraphs (b) through (e) of this 
section, each vessel must undergo drydock and internal structural 
examinations as follows:
    (1) If your vessel operates in saltwater, it must undergo two 
drydock examinations and two internal structural examinations within any 
5-year period unless it has been approved to undergo an underwater 
survey (UWILD) under Sec. 169.230 of this part. No more than 3 years may 
elapse between any two examinations.
    (2) If your vessel operated in fresh water at least 50 percent of 
the time since your last drydocking, it must undergo a dry dock and 
internal structural examination at intervals not to exceed 5 years 
unless it has been approved to undergo an underwater survey (UWILD) 
under Sec. 169.230 of this part.
    (b) Vessels with wooden hulls must undergo two drydock and two 
internal structural examinations within any five year period regardless 
of the type of water in which they operate. No more than three years may 
elapse between any two examinations.
    (c) If, during an internal structural examination damage or 
deterioration to the hull plating or structural members is discovered, 
the Officer in Charge, Marine Inspection, may require the vessel to be 
drydocked or otherwise taken out of service to further assess the extent 
of the damage and to effect permanent repairs.
    (d) Each vessel which has not met with the applicable examination 
schedules in paragraphs (a) through (c) of this section because it is on 
a voyage, must undergo the required examinations upon completion of the 
voyage.

[[Page 42]]

    (e) The Commandant (G-MOC) may authorize extensions to the 
examination intervals specified in paragraphs (a) and (b) of this 
section.

[CGD 84-024, 52 FR 39656, Oct. 23, 1987, as amended at 53 FR 32232, Aug. 
24, 1988; CGD 95-072, 60 FR 50468, Sept. 29, 1995; CGD 96-041, 61 FR 
50734, Sept. 27, 1996; USCG-2000-6858, 67 FR 21083, Apr. 29, 2002]



Sec. 169.230  Underwater Survey in Lieu of Drydocking (UWILD).

    (a) The Officer in Charge, Marine Inspection (OCMI), on a case-by-
case basis, may approve an underwater survey instead of a drydock 
examination at alternating intervals if your vessel is--
    (1) Less than 15 years of age;
    (2) A steel or aluminum hulled vessel;
    (3) Fitted with an effective hull protection system; and
    (4) Listed in Sec. 169.229(a)(1) or (2) of this part.
    (b) For vessels less than 15 years of age, you must submit an 
application for an underwater survey to the OCMI at least 90 days before 
your vessel's next required drydock examination. The application must 
include--
    (1) The procedure for carrying out the underwater survey;
    (2) The time and place of the underwater survey;
    (3) The method used to accurately determine the diver's or remotely 
operated vehicle's (ROV) location relative to the hull;
    (4) The means for examining all through-hull fittings and 
appurtenances;
    (5) The condition of the vessel, including the anticipated draft of 
the vessel at the time of survey;
    (6) A description of the hull protection system; and
    (7) The name and qualifications of any third party examiner.
    (c) If your vessel is 15 years old or older, the cognizant District 
Commander, on a case-by-case basis, may approve an underwater survey 
instead of a drydock examination at alternating intervals. You must 
submit an application for an underwater survey to the OCMI at least 90 
days before your vessel's next required drydock examination. You may be 
allowed this option if--
    (1) The vessel is qualified under paragraphs (a)(2) through (4) of 
this section;
    (2) Your application includes the information in paragraphs (b)(1) 
through (b)(7) of this section; and
    (3) During the vessel's drydock examination, preceding the 
underwater survey, a complete set of hull gaugings was taken and they 
indicated that the vessel was free from appreciable hull deterioration.
    (d) After the drydock examination required by paragraph (c)(3) of 
this section, the OCMI submits a recommendation for future underwater 
surveys, the results of the hull gauging, and the results of the Coast 
Guards' drydock examination results to the cognizant District Commander, 
for review.

[USCG-2000-6858, 67 FR 21083, Apr. 29, 2002]



Sec. 169.231  Definitions relating to hull examinations.

    As used in the part--
    (a) Drydock examination means hauling out a vessel or placing a 
vessel in a drydock or slipway for an examination of all accessible 
parts of the vessel's underwater body and all through-hull fittings, sea 
chests, sea valves, sea strainers, and valves for the emergency bilge 
suction.
    (b) Underwater survey means the examination of the vessel's 
underwater hull including all through-hull fittings and appurtenances, 
while the vessel is afloat.
    (c) Internal structural examination means an examination of the 
vessel while afloat or in drydock and consists of a complete examination 
of the vessel's main strength members, including the major internal 
framing, the hull plating, voids, and ballast tanks, but not including 
cargo or fuel oil tanks.

[CGD 84-024, 52 FR 39656, Oct. 23, 1987, as amended at 53 FR 32232, Aug. 
24, 1988; USCG-2000-6858, 67 FR 21084, Apr. 29, 2002]



Sec. 169.233  Notice and plans required.

    (a) The master, owner, operator, or agent of the vessel shall notify 
the Officer in Charge, Marine Inspection, whenever the vessel is to be 
drydocked regardless of the reason for drydocking.
    (b) Each vessel, except barges, that holds a Load Line Certificate 
must

[[Page 43]]

have on board a plan showing the vessel's scantlings. This plan must be 
made available to the Coast Guard marine inspector whenever the vessel 
undergoes a drydock examination or internal structural examination or 
whenever repairs are made to the vessel's hull.
    (c) Each barge that holds a Load Line Certificate must have a plan 
showing the barge's scantlings. The plan need not be maintained on board 
the barge but must be made available to the Coast Guard marine inspector 
whenever the barge undergoes a drydock examination or internal 
structural examination or whenever repairs are made to the barge's hull.

[CGD 84-024, 52 FR 39656, Oct. 23, 1987]



Sec. 169.234  Integral fuel oil tank examinations.

    (a) Each fuel oil tank with at least one side integral to the 
vessel's hull and located within the hull (``integral fuel oil tank'') 
is subject to inspection as provided in this section. The owner or 
operator of the vessel shall have the tanks cleaned out and gas freed as 
necessary to permit internal examination of the tank or tanks designated 
by the marine inspector. The owner or operator shall arrange for an 
examination of the fuel tanks of each vessel during an internal 
structural examination at intervals not to exceed five years.
    (b) Integral non-double-bottom fuel oil tanks need not be cleaned 
out and internally examined if the marine inspector is able to determine 
by external examination that the general condition of the tanks is 
satisfactory.
    (c) Double-bottom fuel oil tanks on vessels less than 10 years of 
age need not be cleaned out and internally examined if the marine 
inspector is able to determine by external examination that the general 
condition of the tanks is satisfactory.
    (d) All double-bottom fuel oil tanks on vessels 10 years of age or 
older but less than 15 years of age need not be cleaned out and 
internally examined if the marine inspector is able to determine by 
internal examination of at least one forward double-bottom fuel oil 
tank, and by external examination of all other double-bottom fuel oil 
tanks on the vessel, that the general condition of the tanks is 
satisfactory.
    (e) All double-bottom fuel oil tanks on vessels 15 years of age or 
older need not be cleaned out and internally examined if the marine 
inspector is able to determine by internal examination of at least one 
forward, one amidships, and one aft double-bottom fuel oil tank, and by 
external examination of all other double-bottom fuel oil tanks on the 
vessel, that the general condition of the tanks is satisfactory.

[CGD 84-024, 52 FR 39656, Oct. 23, 1987, as amended at 53 FR 32232, Aug. 
24, 1988]

                         Repairs and Alterations



Sec. 169.235  Permission required.

    (a) Repairs or alterations to the hull, machinery, or equipment 
which affects the safety of the vessel may not be made without the 
knowledge and approval of the Officer in Charge, Marine Inspection.
    (b) Drawings, sketches or written specifications describing the 
alterations in detail must be submitted to the OCMI. Proposed 
alterations must be approved by the Officer in Charge, Marine 
Inspection, before work is started.
    (c) Drawings are not required for repairs or replacements in kind.



Sec. 169.236  Inspection and testing required.

    (a) The provisions of NFPA 306, ``Control of Gas Hazards on 
Vessels,'' are used as a guide in conducting the inspections and issuing 
certificates required by this section.
    (b) Until an inspection has been made to determine that the 
operations can be undertaken safely, no alterations, repairs, or other 
operations involving riveting, welding, burning, or other fire-producing 
actions may be made--
    (1) Within or on the boundaries of fuel tanks; or
    (2) To pipelines, heating coils, pumps, fittings, or other 
appurtenances connected to fuel tanks.
    (c) Inspections must be conducted as follows:
    (1) In ports or places in the United States or its territories and 
possessions, the inspection must be made by a marine chemist 
certificated by the

[[Page 44]]

National Fire Protection Association; however, if the services of such 
certified marine chemist are not reasonably available, the Officer in 
Charge, Marine Inspection, upon the recommendation of the vessel owner 
and his contractor on their representative, may authorize a person to 
inspect the particular vessel. If the inspection indicates that the 
operations can be undertaken with safety, a certificate setting forth 
this fact in writing must be issued by the certified marine chemist or 
the authorized person before the work is started. The certificate must 
include any requirements necessary to reasonably maintain safe 
conditions in the spaces certified throughout the operation, including 
any precautions necessary to eliminate or minimize hazards that may be 
present from protective coatings or residues from cargoes.
    (2) When not in a port or place in the United States or its 
territories and possessions, and when a marine chemist or a person 
authorized by the Officer in Charge, Marine Inspection, is not 
reasonably available, the senior officer present shall conduct the 
inspection and enter the results of the inspection in the vessel's 
logbook.
    (d) It is the responsibility of the senior officer present to secure 
copies of certificates issued by the certified marine chemist or a 
person authorized by the Officer in Charge, Marine Inspection. It is the 
responsibility of the senior officer present, insofar as the persons 
under his control are concerned, to maintain a safe condition on the 
vesssel by full observance of all requirements listed by the marine 
chemist in the certificate.

                               Inspections



Sec. 169.237  Inspection standards.

    Vessels are inspected for compliance with the standards required by 
this subchapter. Items not covered by standards in this subchapter must 
be in accordance with good marine practice and acceptable to the Officer 
in Charge, Marine Inspection.



Sec. 169.239  Hull.

    At each inspection for certification and periodic inspection, the 
vessel must be afloat and ready for the following tests and inspections 
of the hull structure and its appurtenances:
    (a) All accessible parts of the exterior and interior of the hull, 
the watertight bulkheads, and weather deck are examined. Where the 
internals of the vessel are completely concealed, sections of the lining 
or ceiling may be removed or the parts otherwise probed or exposed so 
that the inspector may be satisfied as to the condition of the hull 
structure.
    (b) All watertight closures in the hull, decks and bulkheads are 
examined and operated.
    (c) The condition of the superstructure, masts, and similar 
arrangements constructed on the hull is checked. All spars, standing 
rigging, running rigging, blocks, fittings, and sails, including storm 
sails are inspected.
    (d) All railings and bulwarks and their attachment to the hull 
structure are inspected. Special attention is paid to ensure that guards 
or rails are provided in all dangerous places.
    (e) All weathertight closures above the weather deck are inspected. 
The provisions for drainage of sea water from the exposed decks are 
checked.

[CGD 83-005, 51 FR 896, Jan. 9, 1986, as amended by USCG-1999-4976, 65 
FR 6508, Feb. 9, 2000]



Sec. 169.241  Machinery.

    (a) At each inspection for certification and periodic inspection, 
the marine inspector will examine and test the following items to the 
extent necessary, to determine that they are in proper operating 
condition and fit for the service for which they are intended:
    (1) Engine starting system. Alternate methods of starting are 
checked.
    (2) Engine control mechanisms. Mechanisms are operationally tested 
and visually examined.
    (3) Auxiliary machinery. All machinery essential to the routine 
operation of the vessel is checked.
    (4) Fuel systems. Tanks, tank vents and other appurtenances, piping 
and pipe fittings are examined. The fuel systems for the auxiliary 
propulsion engines and all other fuel systems installed are checked. All 
valves in the

[[Page 45]]

fuel lines are tested by operating locally and at remote operating 
positions.
    (5) Sea valves and bulkhead closure valves. All overboard discharge 
and intake valves are checked.
    (6) Bilge and drainage systems. The means provided for pumping 
bilges are operationally tested. All suction strainers are examined.
    (b) During all inspections special attention is paid to ensure that 
no fire hazards exist and that guards or protective devices are provided 
in all hazardous places.

[CGD 83-005, 51 FR 896, Jan. 9, 1986, as amended by USCG-1999-4976, 65 
FR 6508, Feb. 9, 2000]



Sec. 169.243  Electrical.

    At each inspection for certification and periodic inspection, the 
marine inspector will examine and test the following items to the extent 
necessary, to determine that they are in proper operating condition, in 
safe electrical condition, and fit for the service for which they are 
intended:
    (a) Electrical cable. All cable is examined as far as practicable 
without undue disturbance of the cable or electrical apparatus.
    (b) Overload or circuit protective devices. Circuit breakers are 
tested by manual operation and fuses examined visually. The ratings of 
fuses are checked to determine suitability for the service intended.
    (c) Rotating machinery. Rotating electrical machinery essential to 
the routine operation of the vessel is examined.
    (d) Generators, etc. All generators, motors, lighting fixtures and 
circuit interrupting devices located in spaces or areas which may 
contain flammable vapors are checked.
    (e) Storage batteries. Batteries are checked for condition and 
security of stowage.
    (f) Fire detection and alarm system. Electrical apparatus, which 
operates as part of or in conjunction with a fire detection or alarm 
system installed on board the vessel, is operationally tested. The test 
is applied, in a manner to simulate, as closely as practicable, the 
actual operation in case of fire.

[CGD 83-005, 51 FR 896, Jan. 9, 1986, as amended by USCG-1999-4976, 65 
FR 6508, Feb. 9, 2000]



Sec. 169.245  Lifesaving equipment.

    At each inspection for certification and periodic inspection the 
following tests and inspections of lifesaving equipment will be 
conducted:
    (a) All air tank buoyant units of all lifesaving appliances are 
tested for airtightness.
    (b) Each lifeboat is lowered to near the water and loaded with its 
allowed capacity, evenly distributed throughout the length. The total 
weight used is at least equal to the allowed capacity of the lifeboat 
considering persons to weigh 75 kg (165 pounds) each. The lifeboat is 
then lowered into the water until it is afloat and released from the 
falls.
    (c) Each personal flotation device is examined to determine its 
serviceability. If found to be satisfactory, it is stamped ``Passed,'' 
together with the date and the port. If found to be unsatisfactory, the 
personal flotation device must be removed from the vessel's equipment 
and repaired. If it is beyond repair it must be destroyed in the 
presence of the Coast Guard inspector.
    (d) Each lifeboat winch electrical control apparatus is opened and 
inspected.
    (e) Where gravity davits are installed, it must be demonstrated that 
the lifeboat can be swung out and lowered from any stopped position by 
merely releasing the brake on the lifeboat winch. The use of force to 
start the davits or the lifeboat winch is not permitted.
    (f) Inflatable liferaft containers are examined for defects and the 
inspector verifies that the inflatable liferafts and hydraulic releases, 
if installed, have been serviced at an approved facility in accordance 
with the provisions of subparts 160.051 and 160.062, respectively, of 
this chapter.
    (g) All other items of lifesaving equipment are examined to 
determine that they are in suitable condition.

[CGD 83-005, 51 FR 896, Jan. 9, 1986, as amended by USCG-1999-4976, 65 
FR 6508, Feb. 9, 2000]



Sec. 169.247  Firefighting equipment.

    (a) At each inspection for certification and periodic inspection and 
at such other times as considered necessary all fire-extinguishing 
equipment

[[Page 46]]

is inspected to ensure it is in suitable condition. Tests may be 
necessary to determine the condition of the equipment. The inspector 
verifies that the tests and inspections required in Tables 169.247 
(a)(1) and (a)(2) of this subchapter have been conducted by a qualified 
servicing facility at least once every twelve months.
    (1) Hand portable fire extinguishers and semi-portable fire 
extinguishing systems are examined for excessive corrosion and general 
condition.
    (2) All parts of the fixed fire-extinguishing systems are examined 
for excessive corrosion and general condition.
    (3) Piping, controls, valves, and alarms on all fire-extinguishing 
systems are checked to be certain the system is in operating condition.
    (4) The fire main system is operated and the pressure checked at the 
most remote and highest outlets.
    (5) Each firehose is subjected to a test pressure equivalent to its 
maximum service pressure.

               Table 169.247(a)(1)--Portable Extinguishers
------------------------------------------------------------------------
               Type unit                              Test
------------------------------------------------------------------------
Foam..................................  Discharge. Clean hose and inside
                                         of extinguisher thoroughly.
                                         Recharge.
Carbon dioxide........................  Weigh cylinders. Recharge if
                                         weight loss exceeds 10 pct of
                                         weight of charge. Inspect hose
                                         and nozzle to be sure they are
                                         clear.
Dry chemical (cartridge-operated type)  Examine pressure cartridge and
                                         replace if end is punctured or
                                         if cartridge is otherwise
                                         determined to have leaked or to
                                         be in unsuitable condition.
                                         Inspect hose and nozzle to see
                                         they are clear. Insert charged
                                         cartridge. Be sure dry chemical
                                         is free-flowing (not caked) and
                                         chamber contains full charge.
Dry chemical (stored pressure)........  See that pressure gage is in
                                         operating range. If not, or if
                                         seal is broken, weigh or
                                         otherwise determine that full
                                         charge of dry chemical is in
                                         extinguisher. Recharge if
                                         pressure is low or if dry
                                         chemical is needed.
HALON 1211 or HALON 1301).............  See that pressure gage, if
                                         provided, is in operating
                                         range. Recharge if pressure is
                                         low. Weigh cylinder. Recharge
                                         if weight loss exceeds 10 pct
                                         of weight of charge. Inspect
                                         hose and nozzle to ensure they
                                         are clear.
------------------------------------------------------------------------


                   Table 169.247(a)(2)--Fixed Systems
------------------------------------------------------------------------
              Type system                             Test
------------------------------------------------------------------------
Carbon dioxide or HALON 1301..........  Weigh cylinders. Recharge if
                                         weight loss exceeds 10 pct of
                                         weight of charge.
------------------------------------------------------------------------


[CGD 83-005, 51 FR 896, Jan. 9, 1986, as amended by USCG-1999-4976, 65 
FR 6508, Feb. 9, 2000]



Sec. 169.249  Pressure vessels.

    Pressure vessels must meet the requirements of part 54 of this 
chapter. The inspection procedures for pressure vessels are contained in 
subpart 61.10 of this chapter.



Sec. 169.251  Steering apparatus.

    At each inspection for certification and periodic inspection the 
steering apparatus is inspected and operationally tested to determine 
that its condition is satisfactory and that it is fit for the service 
intended.

[CGD 83-005, 51 FR 896, Jan. 9, 1986, as amended by USCG-1999-4976, 65 
FR 6508, Feb. 9, 2000]



Sec. 169.253  Miscellaneous systems and equipment.

    (a) At each inspection for certification and periodic inspection all 
items in the ship's outfit, such as ground tackle, navigation lights, 
compass, etc., which are required to be carried by the regulations in 
this subchapter are examined and tested as necessary to determine that 
they are fit the service intended.
    (b) Approved work vests, where carried, are inspected as provided in 
Sec. 169.556.

[CGD 83-005, 51 FR 896, Jan. 9, 1986, as amended by USCG-1999-4976, 65 
FR 6508, Feb. 9, 2000]



Sec. 169.255  Sanitary inspection.

    At each inspection for certification, periodic inspection, and 
annual inspection quarters, toilet and washing spaces, galleys, serving 
pantries, lockers, etc., are examined to determine that they are 
serviceable and in a sanitary condition.

[CGD 83-005, 51 FR 896, Jan. 9, 1986, as amended by USCG-1999-4976, 65 
FR 6508, Feb. 9, 2000]

[[Page 47]]



Sec. 169.257  Unsafe practices.

    (a) At each inspection for certification, periodic inspection, 
annual inspection, and at every other vessel inspection all observed 
unsafe practices and hazardous situations must be corrected.
    (b) At each inspection for certification, periodic inspection, 
annual inspection, and at every other vessel inspection the bilges and 
other spaces are examined to see that there is no accumulation of oil or 
other matter which might create a fire hazard.

[CGD 83-005, 51 FR 896, Jan. 9, 1986, as amended by USCG-1999-4976, 65 
FR 6508, Feb. 9, 2000]



Sec. 169.259  Limitations of inspections.

    The OCMI may require that a vessel and its equipment meet any test 
or inspection deemed necessary to determine that they are suitable for 
the service in which they are to be employed.



              Subpart 169.300--Construction and Arrangement

                                  Plans



Sec. 169.305  Plans required.

    (a) Except as provided in paragraphs (b) and (c) of this section the 
owner or builder shall, before the start of construction or before the 
initial inspeciton of the vessel, submit to the Officer in Charge, 
Marine Inspection of the inspection zone where the vessel is to be 
inspected, at least one copy of each of the following plans:
    (1) Midship section.
    (2) Outboard profile.
    (3) Inboard profile.
    (4) Arrangement of decks.
    (5) Lifesaving equipment installation and arrangement.
    (6) Machinery installation.
    (7) Electrical installation.
    (8) Fire control plan.
    (9) Fuel tanks.
    (10) Piping systems.
    (11) Hull penetrations and shell connections.
    (12) Lines and offsets, curves of form, and capacities of the tanks 
including size and location on vessel.
    (13) Masts, including integration into the ship's structure.
    (14) Rigging plan showing sail areas and centers of effort as well 
as the arrangement, dimensions, and connections of the standing rigging.
    (b) For vessels less than 65 feet in length, the owner may submit 
specifications, sketches, photographs, line drawings or written 
descriptions in lieu of any of the required drawings provided the 
required information is adequately detailed and acceptable to the 
Officer in Charge, Marine Inspection.
    (c) The Officer in Charge, Marine Inspection, may waive submission 
of some or all of the structural plans called for by paragraph (a) of 
this section for an existing vessel with a history of at least 5 years 
of safe operation, or if the design and construction of the vessel are 
essentially similar to a vessel which has a proven record of safe 
operation in similar service upon similar waters.



Sec. 169.307  Plans for sister vessels.

    Plans are not required for any vessel which is a sister ship to a 
vessel, provided that--
    (a) The approved plans for the original vessels are already on file 
at any Marine Inspection Office;
    (b) The owner of the plans authorizes their use for the new 
construction;
    (c) The regulations have not changed since the original plan 
approval; and
    (d) There are no major modifications to any of the systems used.

                             Hull Structure



Sec. 169.309  Structural standards.

    (a) Compliance with the standards established by a recognized 
classification society will, in general, be considered satisfactory 
evidence of the structural adequacy of a vessel.
    (b) Masts, posts and other supporting structures are to have 
adequate strength to withstand the highest loadings imposed by the sail 
systems during all normal and emergency conditions. Particular attention 
must be given to the integration of the masts and rigging into the hull 
structure. The hull structure must be adequately reinforced and 
stiffened locally to ensure sufficient strength and resistance to plate 
buckling.

[[Page 48]]

    (c) The design, materials, and construction of masts, yards, booms, 
bowsprits, and standing rigging must be suitable for the intended 
service. Detailed calculations with respect to the strength of the sail 
system may be required. Approval by a recognized classification society 
may be considered satisfactory evidence of the adequacy of the sail 
system.
    (d) When scantlings differ from established standards and it can be 
demonstrated that a craft approximating the same size, power and 
displacement has been built to the proposed scantlings and has been in 
satisfactory service, insofar as structural adequacy is concerned, for a 
period of a least 5 years, the proposed scantling may be approved. A 
detailed structural analysis may be required.
    (e) Special consideration will be given to the structural 
requirements of vessels not contemplated by the standards of a 
recognized classification society and to the use of materials not 
specially included in these standards.



Sec. 169.311  Fire protection.

    (a) The general construction of the vessel must be designed to 
minimize fire hazards. Each vessel which carries more than 100 persons 
or has overnight accommodations for more than 49 persons must meet the 
requirements of subpart 72.05 of this chapter. Each vessel which is 
certificated to carry 100 persons or less or had overnight 
accommodations for less than 50 persons must meet the requirements of 
Sec. 169.323.
    (b) A fire detector, listed by a recognized testing laboratory, must 
be installed in each unmanned engine space.
    (c) Smoke detectors, listed by a recognized testing laboratory, must 
be installed in each berthing compartment, sail locker, and public area.
    (d) Internal combustion engine exhausts, boiler and galley uptakes, 
and similar sources of ignition must be kept clear of and suitably 
insulated from any woodwork or other combustible matter.
    (e) Lamp, paint, oil lockers and similar compartments must be 
constructed of metal or wholly lined with metal.

[CGD 83-005, 51 FR 897, Jan. 9, 1986; 51 FR 3785, Jan. 30, 1986]



Sec. 169.313  Means of escape.

    (a) Except as provided by paragraph (f) of this section, there must 
be at least two means of escape from all areas generally accessible to 
persons onboard. At least one means of escape must be independent of 
watertight doors and lead directly to the open deck. Windows and 
windshields of sufficient size and proper accessibility may be used as 
one avenue of escape.
    (b) The two means of escape must be as widely separated as practical 
to minimize the possibility of one incident blocking both escapes.
    (c) Except as provided by paragraph (d) of this section, a vertical 
ladder and deck scuttle may not be designated as one of the means of 
escape.
    (d) A vertical ladder and deck scuttle may be used as a second means 
of escape if--
    (1) The primary means of escape is an enclosed stairtower or 
stairway;
    (2) The installation of two stairways is impracticable;
    (3) The scuttle is located where it can not be interfered with; and
    (4) The scuttle is fitted with a quick-acting release and a hold-
back to hold the scuttle in an open position.
    (e) The required means of escape must not have locking devices.
    (f) Where the length of the compartment is less than 12 feet, one 
vertical means of escape is acceptable provided that--
    (1) There is no source of fire in the space, such as a galley stove, 
heater, etc., and the vertical escape is remote from the engine or fuel 
tank space, and
    (2) The arrangement is such that the installation of two means of 
escape does not materially improve the safety of the vessel or those on 
board.
    (g) Dead end corridors or the equivalent, more than 40 feet in 
length are prohibited.
    (h) Each means of escape must be of adequate size to accommodate 
rapid evacuation.
    (i) Each vertical ladder must have rungs that are:
    (1) At least 16 inches in length;
    (2) Not more than 12 inches apart, uniform for the length of the 
ladder;
    (3) At least 3 inches from the nearest permanent object in back of 
the ladder; and

[[Page 49]]

    (4) Except when unavoidable obstructions are encountered, there must 
be at least 4\1/2\ inches clearance above each rung.



Sec. 169.315  Ventilation (other than machinery spaces).

    (a) All enclosed spaces within the vessel must be properly 
ventilated in a manner suitable for the purpose of the space.
    (b) A means must be provided to close off all vents and ventilators.
    (c) Living spaces must be ventilated by a mechanical system unless 
it can be shown that a natural system will provide adequate ventilation 
in all ordinary weather conditions. Provided that paragraph (a) of this 
section is satisfied, a vessel having only a natural ventilation system 
must satisfy the following: V/A[ge]1.4 where V is the total area of the 
vents in square inches and A is the product in square feet of the 
vessel's design waterline length times its maximum beam.

                              Living Spaces



Sec. 169.317  Accommodations.

    (a) Quarters must have sufficient fresh air, light and heat. 
Quarters must not be located forward of the collision bulkhead or 
farther forward in the vessel than a vertical plane located at 5 percent 
of the vessel's loadline length abaft the forward side of the stem. The 
space must not be located totally below the deepest load waterline.
    (b) Bulkheads separating accommodations from machinery spaces, paint 
lockers, storerooms, washrooms, and toilet facilities are to be 
odorproof.
    (c) All quarters are to be properly drained, odorproof and protected 
from heat and noise.
    (d) Each person on board must have a separate berth which is of 
sufficient size and generally clear of all pipes, ventilation ducts and 
other installations.
    (e) Each bunk must be constructed of wood, fiberglass or metal. If 
fitted with a mattress, the mattress must be covered with material which 
has been treated to give it fire resistant properties and which will 
provide the mattress with a reasonably smooth surface. There must be a 
minimum vertical distance between bunks of 24 inches.
    (f) A means of access must be provided for each berthing arrangement 
where the upper berth is more than 60 inches above the deck.
    (g) The construction and arrangement must allow free and 
unobstructed access to each berth. Each berth must be immediately 
adjacent to an aisle leading to a means of escape from the living area.
    (h) A properly arranged hammock may be used as a berth.



Sec. 169.319  Washrooms and toilets.

    (a) Sailing school vessels must have one toilet and one washbasin 
for every 20 persons. Each toilet and washbasin must have adequate 
plumbing.
    (b) Each washroom and toilet room must properly drain and the 
scupper to the washroom must be of sufficient size and situated in the 
lowest part of the space.
    (c) Each sailing school vessel must meet the applicable requirements 
of Title 33, Code of Federal Regulations, part 159.



Sec. 169.323  Furniture and furnishings.

    Each sailing school vessel certificated to carry 100 persons or less 
or having overnight accommodations for less than 50 persons must meet 
the following requirements:
    (a) Except as provided by paragraph (b) of this section, all free-
standing furniture must be constructed of noncombustible material. 
Upholstery and padding used in furniture must be of fire resistant 
materials.
    (b) Existing solid wooden furniture may be retained on existing 
vessels.
    (c) Draperies must be fabricated of fire resistant fabrics.
    (d) Rugs and carpets must be of wool or other material having 
equivalent fire resistant qualities.
    (e) Trash receptacles must be constructed of non-combustible 
materials with solid sides and bottoms and have solid noncombustible 
covers.

                            Rails and Guards



Sec. 169.327  Deck rails.

    (a) All rails or lifelines must be at least 30 inches high and 
permanently

[[Page 50]]

supported by stanchions at intervals of not more than 7 feet. Stanchions 
must be through bolted or welded to the deck.
    (b) Rails or lifelines must consist of evenly spaced courses. The 
spacing between courses must not be greater than 12 inches. The opening 
below the lowest course must not be more than 9 inches. Lower rail 
courses are not required where all or part of the space below the upper 
rail is fitted with a bulwark, chain link fencing, wire mesh, or an 
equivalent.
    (c) Small vessels of the open type and vessels of unusual 
construction must have rails or equivalent protection as considered 
necessary by the Officer in Charge, Marine Inspection.



Sec. 169.329  Storm rails.

    Suitable storm rails or hand grabs must be installed where necessary 
in all passageways, at deckhouse sides, and at ladders and hatches where 
persons might have normal access.



Sec. 169.331  Guards in hazardous locations.

    Each exposed hazard, such as gears or machinery, must be properly 
protected with covers, guards, or rails.



    Subpart 169.400--Watertight Integrity, Subdivision, and Stability



Sec. 169.401  Applicability.

    Each vessel must meet the applicable requirements in Subchapter S, 
parts 170-174, of this chapter.



         Subpart 169.500--Lifesaving and Firefighting Equipment

                      Lifesaving Equipment--General



Sec. 169.505  Equipment installed but not required.

    Each item of lifesaving equipment installed on board a vessel must 
be of an approved type.



Sec. 169.507  Responsibility of master.

    The master or operator shall ensure that the lifeboats, liferafts, 
davits, falls, personal flotation devices, and other lifesaving 
appliances are at all times ready for use, and that all equipment 
required by the regulations in this subchapter is provided, maintained, 
serviced, and replaced as indicated.



Sec. 169.509  Approval for repairs and alterations.

    No extensive repairs or alterations, except in an emergency, may be 
made to any item of lifesaving equipment without advance notice to the 
Officer in Charge, Marine Inspection. Repairs and alterations must be 
made to the original standard of construction and tested in the manner 
specified in this subpart and applicable requirements in Subchapter Q of 
this chapter. Emergency repairs or alterations must be reported as soon 
as practicable to the nearest Officer in Charge, Marine Inspection.

                      Primary Lifesaving Equipment



Sec. 169.513  Types of primary equipment.

    (a) Lifeboats. Each lifeboat must be of a type approved under 
subpart 160.035 of this chapter. Installation and arrangement of each 
lifeboat including davits and winches must meet the requirements of part 
94 of this chapter.
    (b) Inflatable liferafts. (1) Each inflatable liferaft must be a 
SOLAS A inflatable liferaft approved under part 160, subpart 160.151, of 
this chapter, except that inflatable liferafts on vessels operating on 
protected or partially protected waters may be SOLAS B inflatable 
liferafts approved under part 160, subpart 160.151, of this chapter.
    (2) Each approved inflatable liferaft on the vessel on September 30, 
2002, may be used to meet the requirements of this part as long as it is 
continued in use on the vessel, and is in good and serviceable 
condition.
    (c) Life floats. Each lifefloat must be of a type approved under 
subpart 160.027 of this subchapter.

[CGD 83-005, 51 FR 896, Jan. 9, 1986, as amended by USCG-2001-11118, 67 
FR 58541, Sept. 17, 2002]



Sec. 169.515  Number required.

    (a) Except as provided in paragraph (c) of this section, each vessel 
must have sufficient lifeboats or inflatable liferafts to accommodate 
all persons on board .

[[Page 51]]

    (b) Each vessel certificated for exposed waters must have additional 
inflatable liferafts to accommodate 25% of the persons on board or the 
number of persons accommodated in the largest lifeboat or liferaft, 
whichever is greater.
    (c) Vessels certificated for protected waters only may carry 
lifefloats of a combined capacity to accommodate all persons on board in 
lieu of the lifeboats and inflatable liferafts required in paragraph (a) 
of this section.



Sec. 169.517  Rescue boat.

    All vessels certificated for exposed or partially protected waters 
service must have a suitable motor rescue boat, except when a motor 
lifeboat is provided or when, in the opinion of the Officer in Charge, 
Marine Inspection, the vessel is of such design and operating 
characteristics that the vessel itself provides a satisfactory man 
overboard rescue platform.



Sec. 169.519  Availability.

    (a) Each lifeboat, inflatable liferaft, and lifefloat must be kept 
in good working order and be readily available.
    (b) The decks on which lifeboats, liferafts, and lifefloats are 
carried must be kept clear of obstructions which could interfere with 
the immediate boarding and launching of the lifesaving appliances.



Sec. 169.521  Stowage.

    (a) General. Each lifeboat, inflatable liferaft, and lifefloat must 
be stowed so that--
    (1) It is capable of being launched within 10 minutes or, in the 
case of vessels having one compartment subdivision, 30 minutes;
    (2) It does not impede the launching or handling of other lifesaving 
appliances;
    (3) It does not impede the marshaling of persons at the embarkation 
stations, or their embarkation; and
    (4) It is capable of being put in the water safely and rapidly even 
under unfavorable conditions of list and trim.
    (b) Lifeboat stowage. Each lifeboat must be stowed to meet the 
following requirements:
    (1) Each lifeboat must be attached to a separate set of davits.
    (2) Lifeboats must not be stowed in the bow of the vessel nor so far 
aft as to be endangered by the propellers or overhang of the stern.
    (3) Lifeboats must be stowed so that it is not necessary to lift 
them in order to swing out the davits.
    (4) Means must be provided for bringing the lifeboats against the 
ship's side and holding them there so that persons may safely embark, 
unless the lifeboats are arranged for boarding at the stowage position.
    (5) Lifeboats must be fitted with skates or other suitable means to 
facilitate launching against an adverse list of up to 15 degrees. 
However, skates may be dispensed with if, in the opinion of the 
Commandant, the arrangements ensure that the lifeboats can be 
satisfactorily launched without them.
    (6) Means must be provided outside the machinery space to prevent 
the discharge of water into the lifeboats while they are being lowered.
    (c) Inflatable liferaft stowage. Inflatable liferafts must be stowed 
so that they will float free in the event of the vessel sinking. Stowage 
and launching arrangements must be to the satisfaction of the Officer in 
Charge, Marine Inspection.
    (d) Life float stowage. Each life float must be stowed to meet the 
requirements of this paragraph.
    (1) Each life float must be secured to the vessel by a painter and a 
float-free link that is--
    (i) Certified to meet subpart 160.073 of this chapter;
    (ii) Of proper strength for the size of the life float as indicated 
on its identification tag; and
    (iii) Secured to the painter at one end and secured to the vessel on 
the other end.
    (2) The means by which the float-free link is attached to the vessel 
must--
    (i) Have a breaking strength of at least the breaking strength of 
the painter.
    (ii) If synthetic, be of a dark color or of a material certified to 
be resistant to deterioration from ultraviolet light; and
    (iii) If metal, be corrosion resistant.
    (3) If the life float does not have a painter attachment fitting, a 
means for

[[Page 52]]

attaching the painter must be provided by a wire or line that--
    (i) Encircles the body of the device;
    (ii) Will not slip off;
    (iii) Has a breaking strength that is at least the breaking strength 
of the painter; and
    (iv) If synthetic, is of a dark color or is of a material certified 
to be resistant to deterioration from ultraviolet light.
    (4) The float-free link described in paragraphs (d)(1) and (d)(2) of 
this section is not required if the vessel operates solely in waters 
that have a depth less than the length of the painter.
    (5) If the vessel carries more than one life float, the life floats 
may be grouped and each group secured by a single painter, provided 
that--
    (i) The combined weight of each group of life floats does not exceed 
400 pounds;
    (ii) Each life float is individually attached to the painter by a 
line that meets paragraphs (d)(2) and (d)(3) of this section and which 
is long enough so that each can float without contacting any other life 
float in the group; and
    (iii) The strength of the float-free link and the strength of the 
painter under paragraphs (d)(1)(ii) and (d)(2) of this section is 
determined by the combined capacity of the group of life floats.
    (6) Each life float, as stowed, must be capable of easy launching. 
Life floats weighing over 400 pounds must not require lifting before 
launching.
    (7) Life floats must be secured to the vessel only by a painter and 
lashings that can be easily released or by hydraulic releases. They must 
not be stowed in more than four tiers. When stowed in tiers, the 
separate units must be kept apart by spacers.
    (8) There must be means to prevent shifting.
    (e) Hydraulic Releases. Each hydraulic release used in the 
installation of any inflatable liferaft or life float must meet subpart 
160.062 of this chapter.

               Equipment for Primary Lifesaving Apparatus



Sec. 169.525  General.

    (a) Equipment for primary lifesaving apparatus must kept in good 
condition.
    (b) Lifeboats, inflatable liferafts and lifefloats must be fully 
equipped before the vessel is navigated and throughout the voyage.
    (c) No person may stow in any lifeboat, inflatable liferaft, or 
lifefloat any article not required by this subpart unless the article is 
authorized by the OCMI, in good working order, and properly stowed so as 
not to reduce the seating capacity, the space available to the 
occupants, or adversely affect the seaworthiness of the livesaving 
apparatus.
    (d) Loose equipment, except boathooks in lifeboats, must be securely 
attached to the lifesaving appliance to which it belongs.



Sec. 169.527  Required equipment for lifeboats.

    Lifeboats must be equipped in accordance with Table 169.527. This 
equipment is described in Sec. 169.529.

                              Table 169.527
------------------------------------------------------------------------
                                                 Exposed and
                                                  partially    Protected
        Letter identification and item            protected     waters
                                                   waters
------------------------------------------------------------------------
a--Bailer.....................................        1          None
b--Bilge pump.................................        1          None
c--Boathooks..................................        2             1
d--Bucket.....................................        2             1
e--Compass and mounting.......................        1          None
f--Ditty bag..................................        1          None
g--Drinking cup...............................        1          None
h--Fire extinguisher (motor-propelled                 2             2
 lifeboats only)..............................
i--First-aid kit..............................        1          None
j--Flashlight.................................        1          None
k--Hatchet....................................        2             1
l--Heaving line...............................        2          None
m--Jackknife..................................        1          None
n--Ladder, lifeboat, gunwale..................        1          None
o--Lantern....................................        1             1
p--Lifeline...................................        1             1
q--Life preservers............................        2             2
r--Locker.....................................        1          None
s--Mast and sail (oar-propelled lifeboats             1          None
 only)........................................
t--Matches (boxes)............................        2             1
u--Mirror, signaling..........................        2          None
v--Oars (units)...............................        1             1
w--Oil, illuminating (quarts).................        1          None
x--Oil, storm, (gallons)......................        1          None
y--Painter....................................        2             1
z--Plug.......................................        1             1
aa--Provisions (per person)...................        2          None
bb--Rowlocks (units)..........................        1             1
cc--Rudder and tiller.........................        1          None
dd--Sea anchor................................        1          None
ee--Signals, distress, floating orange smoke..        2          None
ff--Signals, distress, red hand flare (units).        1          None
gg--Signals, distress, red parachute flare            1          None
 (units)......................................

[[Page 53]]

 
hh--Tool kit (motor-propelled lifeboats only).        1             1
ii--Water (quarts per person).................        3          None
jj--Whistle, signaling........................        1          None
kk--Fishing kit...............................        1          None
ll--Cover, protecting.........................        1          None
mm--Signals, lifesaving.......................        1          None
------------------------------------------------------------------------



Sec. 169.529  Description of lifeboat equipment.

    (a) Bailer. The bailer must have a lanyard attached and must be of 
sufficient size and suitable for bailing.
    (b) Bilge pump. Bilge pumps must be approved under subpart 160.044 
of this chapter. They must be of the size given in Table 169.529(b) 
depending upon the capacity of the lifeboat as determined by the six-
tenths rule as described in Sec. 160.035-9(b) of this chapter.

                            Table 169.529(b)
------------------------------------------------------------------------
        Capacity of lifeboat, cubic feet
-------------------------------------------------     Bilge pump size
         Over--                 Not over--
------------------------------------------------------------------------
                                   330                       1
          330                      700                       2
          700            .......................             3
------------------------------------------------------------------------

    (c) Boathooks. Boathooks must be of the single hook ballpoint type. 
Boathook handles must be of clear grained white ash, or equivalent, and 
of a length and diameter as given in Table 169.529(c).

                            Table 169.529(c)
------------------------------------------------------------------------
      Length of lifeboat, feet                 Boathook handles
------------------------------------------------------------------------
      Over--           Not over--     Diameter, inches    Length, feet
------------------------------------------------------------------------
                           23               1.50                8
        23                 29               1.75               10
        29                                  2                  12
------------------------------------------------------------------------

    (d) Bucket. Each bucket must be of heavy gage galvanized iron, or 
other suitable corrosion-resistant metal, of not less than 2-gallon 
capacity, and must have a 6-foot lanyard of 12-thread manila or 
equivalent attached.
    (e) Compass and mounting. The compass and mounting must be of an 
approved type.
    (f) Ditty bag. The ditty bag must consist of a canvas bag or 
equivalent and must contain a sailmaker's palm, needles, sail twine, 
marline, and marline spike.
    (g) Drinking cups. Drinking cups must be enamel coated or plastic, 
graduated in milliliters or ounces, and provided with lanyards 3 feet in 
length.
    (h) Fire extinguishers. Each fire extinguisher must be an approved 
Type B-C, Size I. One must be attached to each end of the lifeboat.
    (i) First-aid kit. The first-aid kit must be approved under subpart 
160.041 of this chapter.
    (j) Flashlights. Each flashlight must be approved under Sec. 94.20-
15(j) of this chapter. Three spare cells (or one 3-cell battery) and two 
spare bulbs, stowed in a watertight container, must be provided with 
each flashlight. Batteries must be replaced yearly during the annual 
stripping, clearing, and overhaul of the lifeboat.
    (k) Hatchets. Hatchets must be approved under subpart 160.013 of 
this chapter. They must be attached to the lifeboat by individual 
lanyards and be readily available for use, one at each end of the 
lifeboat.
    (l) Heaving line. The heaving line must be of adequate strength, 10 
fathoms in length, and 1 inch in circumference. It must remain buoyant 
after being submerged for 24 hours.
    (m) Jackknife. The jackknife must be approved under subpart 160.043 
of this chapter.
    (n) Ladder, lifeboat gunwale. The lifeboat gunwale ladder must 
consist of 3 flat wood steps with cut outs for hand holds. The steps 
must be spaced 12 inches apart and fastened with \5/8\ inch diameter 
manila rope or equivalent. Each rope end must be tied inside the 
lifeboat at about amidships with the ladder stowed on top of the side 
benches and ready for immediate use.
    (o) Lantern. The lantern must contain sufficient oil to burn for at 
least 9 hours, and be ready for immediate use. In totally enclosed 
lifeboats, an interior lighting system may be used in lieu of a lantern.
    (p) Lifeline. The lifeline must be properly secured to both sides of 
the lifeboat along its entire length, festooned in bights not longer 
than 3 feet, with a seine float in each bight. The float may

[[Page 54]]

be omitted if the line is of an inherently buoyant material and absorbs 
little or no water. The lifeline must be of a size and strength not less 
than \3/8\-inch diameter manila. The bights must hang to within 12 
inches of the water when the lifeboat is light.
    (q) Life preservers. Life preservers must be of an approved type. 
These preservers are in addition to those required by Sec. 169.539 of 
this chapter.
    (r) Locker. The locker must be suitable for the storage and 
preservation of the small items of equipment required under 
Sec. 169.527.
    (s) Mast and sail. A unit, consisting of a standing lug sail 
together with the necessary spars and rigging, must be provided in 
accordance with Table 169.529(s). The sails must be of good quality 
canvas, or other material acceptable to the Commandant, colored Indian 
Orange (Cable No. 70072, Standard Color Card of America). Rigging must 
consist of galvanized wire rope not less than three-sixteenths inch in 
diameter. The mast and sail must be protected by a suitable cover.

[[Page 55]]



                                                                                        Table 169.529(s)
------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
    Length of                                             Standing lug sail                                                                   Mast 1                          Yard 1
  lifeboat, feet  ------------------------------------------------------------------------------------------------               ---------------------------------------------------------------
------------------             Luff and head       Leach length       Foot length       Clew to throat    Ounces     Commercial         Length                          Length
                     Area,        lengths      ---------------------------------------------------------    per     designation  -------------------  Diameter,  -------------------  Diameter,
 Over--     Not     square  -------------------                                                           square       number                           inches                          inches
           over--    feet      Feet    Inches     Feet    Inches     Feet    Inches     Feet    Inches     yard                     Feet    Inches                  Feet    Inches
------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
             17       58         5       11        12        1         8       10        10       10       14.35         10          11        2         3            6       11         2
   17        19        74        6        8        13        8        10        0        12        2       14.35         10          12        6         3            7        8         2
   19        21        93        7        5        15        1        11        2        13        8       14.35         10          13       10        3\1/2\        8        5        2\1/2\
   21        23       113        8        3        16       11        12        4        15        1       14.35         10          15        2        3\1/2\        9        3        2\1/2\
   23        25       135        9        0        18        6        13        6        16        6       14.35         10          16        6         4           10        0         3
   25        27       158        9        9        20        0        14        7        17       10       17.50          8          17       10         4           10        9         3
   27        29       181       10        5        21        5        15        7        19        1       17.50          8          19        2        4\1/2\       11        5        3\1/4\
   29        31       203       11        0        22        8        16        6        20        3       20.74          6          20        6        4\1/2\       12        0        3\1/4\
 31 \2\
------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
1 Mast lengths measured from heel to center of upper halyard sheave. Mast diameters measured at thwart. Mast and yard shall be of clear-grained spruce, fir, or equivalent.
2 Subject to special consideration.


[[Page 56]]

    (t) Matches. A box of friction matches in a watertight container, 
stowed in an equipment locker or secured to the underside of the stern 
thwart if no locker is fitted, must be provided.
    (u) Mirrors, signaling. Signaling mirrors must be of an approved 
type.
    (v) Oars. A unit, consisting of a complement of rowing oars and 
steering oar, must be provided for each lifeboat in accordance with 
Table 169.529(v) except that motor-propelled and hand-propelled 
lifeboats need only be equipped with four rowing oars and one steering 
oar. In any case, the emergency lifeboats must be provided with the full 
complement of oars prescribed by the table. All oars must be buoyant.

                            Table 169.529(v)
------------------------------------------------------------------------
  Length of lifeboat        Number of oars--      Length of oars (feet)--
        (feet)         --------------------------
-----------------------                          -----------------------
  Over--    Not over--    Rowing      Steering      Rowing     Steering
------------------------------------------------------------------------
                  15           4            1            8           9
      15          19           6            1           10          11
      19          21           6            1           11          12
      21          23           6            1           12          13
      23          25           8            1           13          14
      25          27           8            1           14          15
      27    ..........         8            1           15          16
------------------------------------------------------------------------

    (w) Oil, illuminating. One quart of illuminating oil must be 
provided in a metal container if a lantern is carried.
    (x) Oil, storm. One gallon of vegetable, fish, or animal oil must be 
provided in a suitable metal container so constructed as to permit a 
controlled distribution of oil on the water, and so arranged that it can 
be attached to the sea anchor.
    (y) Painter. Painters must be of manila rope not less than 2\3/4\ 
inches in circumference, or equivalent, and of a length not less than 3 
times the distance between the deck on which the lifeboat is stowed and 
the light draft of the vessel. For lifeboats on vessels certificated for 
exposed or partially protected water service, one of the painters must 
have a long eye splice and be attached to the thwart with a toggle. The 
other painter must be attached to the stem.
    (z) Plug. The automatic drain required in the lifeboat must be 
provided with a cap or plug attached to the lifeboat by a suitable 
chain.
    (aa) Provisions. Approved emergency rations must be provided, 
consisting of 10,000 kJ (2390 calories) for each person the lifeboat is 
approved to carry. The provisions must be stowed in lockers or other 
compartments providing suitable protection.
    (bb) Rowlocks. A unit, consisting of sufficient rowlocks and rowlock 
sockets for each oar required by Table 169.529(v) plus 2 additional 
rowlocks must be provided. The rowlocks must be attached to the lifeboat 
by separate chains so as to be available for immediate use, except that 
the 2 additional spare rowlocks must be carried in the equipment locker 
or stowed near the stern if no locker is fitted. The rowlocks and 
rowlock sockets must be distributed so as to provide the maximum amount 
of single banked oars practicable.
    (cc) Rudder and tiller. The rudder and tiller must be constructed in 
accordance with Sec. 160.035-3(t) of this chapter.
    (dd) Sea anchor. The sea anchor must be of an approved type.
    (ee) Signals, distress, floating orange smoke. The floating orange 
smoke distress signals must be approved under subpart 160.022 of this 
chapter. The signals must be replaced no later than the first annual 
stripping, cleaning, and overhaul of the lifeboat after the date of 
expiration.
    (ff) Signals, distress, red hand flare. A unit consists of twelve 
hand red flare distress signals approved under subpart 160.021 or 
160.023 of this chapter and stored in a watertight container. Signals 
must be replaced no later than the first annual stripping, cleaning, and 
overhaul of the lifeboat after the date of expiration.
    (gg) Signals, distress, red parachute flare. A unit consists of 
twelve parachute red flare distress signals with an approved means of 
projection approved under subparts 160.024 and 160.028 respectively; or 
twelve approved hand-held rocket-propelled parachute red flare distress 
signals approved under subpart 160.036. Flares must be stored in a 
portable watertight container. Flares must be replaced no later than the 
first annual stripping, cleaning, and overhaul of the lifeboat after the 
date of expiration.

[[Page 57]]

    (hh) Tool kit. The tool kit must consist of at least the following 
tools in a suitable container:
    (1) One 12-ounce ball peen hammer.
    (2) One screwdriver with 6-inch blade.
    (3) One pair 8-inch slip joint pliers.
    (4) One 8-inch adjustable end wrench.
    (ii) Water. (1) For each person the lifeboat is certified to carry, 
there must be provided three quarts of drinking water in containers 
approved under subpart 160.026. Water must be replaced no later than the 
first annual stripping, cleaning, and overhaul of the lifeboat after 
date of expiration.
    (2) One or more desalting kits, approved under subpart 160.058 of 
this chapter, may be used as a substitute for one-third of the drinking 
water required.
    (3) The drinking water must be stowed in drinking water tanks, 
lockers, or other compartments providing suitable protection.
    (jj) Whistle, signaling. The whistle must be of the ball-type or 
multi-tone type, of corrosion resistant construction, with a 36-inch 
lanyard attached, and in good working order.
    (kk) Fishing kit. The fishing kit must be approved under subpart 
160.061 of this chapter.
    (ll) Cover, protecting. The cover must be of highly visible color 
and capable of protecting the occupants against exposure.
    (mm) Table of lifesaving signals. The table of lifesaving signals 
must be in accordance with the provisions of Chapter V, Regulation 16, 
of the International Convention for Safety of Life at Sea, 1974, and 
must be printed on water resistant paper.

[CGD 83-005, 51 FR 896, Jan. 9, 1986, as amended by CGD 95-072, 60 FR 
50468, Sept. 29, 1995]



Sec. 169.535  Required equipment for lifefloats.

    Each lifefloat must be equipped in accordance with Table 169.535. 
The equipment is described in Sec. 169.537.

                              Table 169.535
------------------------------------------------------------------------
                                            Number required for each
                                                    lifefloat
                                       ---------------------------------
    Letter identification and Item          Exposed and
                                        partially protected   Protected
                                               water            water
------------------------------------------------------------------------
(a) Boathook..........................              1               1
(b) Lifeline..........................              1               1
(c) Paddles...........................              4               4
(d) Painter...........................              1               1
(e) Water light.......................              1            None
------------------------------------------------------------------------



Sec. 169.537  Description of equipment for lifefloats.

    (a) Boathook. Each boathook must be of the single hook ball point 
type. Boathook handles must be of clear grained white ash, or 
equivalent, not less than 6 feet long and 1\1/2\ inches in diameter.
    (b) Lifeline and pendants. The lifeline and pendants must be as 
furnished by the manufacturer with approved life floats. Replacement 
lifelines and pendants must meet the requirements in subpart 160.010 of 
this chapter.
    (c) Paddles. Paddles must be not less than 5 feet long.
    (d) Painter. The painter must--
    (1) Be at least 30m (100 ft.) long, but not less than 3 times the 
distance between the deck on which the life float(s) are stowed and the 
light draft of the vessel,
    (2) Have a breaking strength of at least 6.7 KN (1500 lbs.), except 
that if the capacity of the life float is 50 persons or more, the 
breaking strength must be at least 13.4 KN (3000 lbs.),
    (3) Be of a dark color, if synthetic, or of a type certified to be 
resistant to deterioration from ultraviolet light, and
    (4) Be stowed in such a way it runs freely when the life float 
floats away from the sinking vessel.
    (e) Water light. The water light must be approved under subpart 
161.010 of this chapter. The water light must be attached to the 
lifefloat by a 12-thread manila or equivalent synthetic lanyard 3 
fathoms in length.

                       Personal Flotation Devices



Sec. 169.539  Type required.

    All personal flotation devices (PFDs) must be either--
    (a) A Type I approved under subpart 160.055, 160.002, or 160.005 of 
Subchapter Q (specification) of this chapter; or
    (b) a Type V approved specifically for sailing school vessel use 
under subpart

[[Page 58]]

160.064 or 160.077 of Subchapter Q of this chapter; or
    (c) a Type II approved under subparts 160.047, 160.052, or 160.060 
or a Type III approved under subpart 160.064 if the vessel carries 
exposure suits or Type V exposure PFDs, in accordance with section 
169.551.



Sec. 169.541  Number required.

    Each vessel must be provided with an approved adult personal 
flotation device of an appropriate size for each person carried. In 
addition, unless the service is such that children are never carried, 
there must be provided an approved personal flotation device of a 
suitable size for each child carried.



Sec. 169.543  Distribution and stowage.

    (a) Personal flotation devices must be distributed through the upper 
part of the vessel in protected places convenient to the persons on 
board.
    (b) If practicable, personal flotation device containers must be 
designed to allow the PFDs to float free.
    (c) Personal flotation devices for children, when provided, must be 
stowed separately.
    (d) Lockers, boxes, and closets in which PFDs are stowed must not be 
capable of being locked.



Sec. 169.545  Markings.

    (a) Each personal flotation device must be marked with the vessel's 
name.
    (b) Where PFDs are stowed so that they are not readily visible to 
persons onboard, the containers in which they are stowed must be marked 
``adult personal flotation devices'' or ``child personal flotation 
devices'', as appropriate, and with the number contained therein, in at 
least 1-inch letters and figures.
    (c) Each personal flotation device carried on vessels certificated 
for exposed or partially protected waters service must have a light 
approved under subpart 161.012 of this chapter. The light must be 
securely attached to the front shoulder area of the personal flotation 
device.
    (d) Each personal flotation device must have at least 200 sq. cm. 
(31 sq. in.) of retroreflective material attached on its front side and 
at least 200 sq. cm. on its back side. If the personal flotation device 
is reversible, retroreflective material must be applied as described 
above on both sides.
    (e) Retroreflective material required by this section must be Type I 
material that is approved under subpart 164.018 of this chapter.

                     Additional Lifesaving Equipment



Sec. 169.549  Ring lifebuoys and water lights.

    (a)(1) The minimum number of life buoys and the minimum number to 
which water lights must be attached must be in accordance with the 
following table:

                           Table 169.549(a)(1)
------------------------------------------------------------------------
                                                               Minimum
                                                  Minimum     number of
               Length of vessel                  number of    buoys with
                                                   buoys     waterlights
                                                               attached
------------------------------------------------------------------------
Under 100.....................................       2            1
100 feet to less than 200 ft..................       4            2
200 feet to less than 300 ft..................       6            2
300 feet to less than 400 ft..................      12            4
400 feet to less than 600 ft..................      18            9
------------------------------------------------------------------------

    (2) One lifebuoy on each side of a vessel must have an attached line 
at least 15 fathoms in length.
    (b) All lifebuoys must be placed where they are readily accessible. 
They must be capable of being readily cast loose.
    (c)(1) All ring lifebuoys must be approved under subpart 160.050 or 
160.064 of this chapter and be international orange in color.
    (2) Each water light must be approved under subpart 161.010 of this 
chapter.



Sec. 169.551  Exposure suits.

    (a) This section applies to each vessel operating in exposed or 
partially protected waters service except those--
    (1) Operating on routes between 32 deg. N and 32 deg. S in the 
Atlantic Ocean.
    (2) Operating on routes between 35 deg. N and 35 deg. S latitude in 
all other waters.
    (b) Each vessel to which this section applies must have for each 
person on board an exposure suit approved under subpart 160.171 or a 
Type V exposure PFD approved under subpart 160.053.

[CGD 83-005, 51 FR 896, Jan. 9, 1986, as amended by CGD 95-072, 60 FR 
50468, Sept. 29, 1995]

[[Page 59]]



Sec. 169.553  Pyrotechnic distress signals.

    (a) All pyrotechnic distress signals must be of an approved type.
    (b) Replacement must be made no later than the first inspection for 
certification or reinspection after the date of expiration.
    (c) Except as otherwise provided in this section, each vessel must 
carry the following pyrotechnic distress signals:
    (1) 6 hand red flare distress signals, and 6 hand orange smoke 
distress signals; or,
    (2) 12 hand held rocket propelled parachute red flare distress 
signals.
    (d) [Reserved]
    (e) All pyrotechnic distress signals must be carried near the helm 
or in a location considered suitable by the Officer in Charge, Marine 
Inspection.
    (f) All pyrotechnic distress signals must be stowed in a portable 
watertight container.



Sec. 169.555  Emergency position indicating radio beacon (EPIRB).

    (a) Each vessel certificated for exposed waters must have an 
approved Class A emergency position indicating radiobeacon (EPIRB), and 
each vessel certificated for partially protected waters must have an 
approved Class C emergency position indicating radiobeacon (EPIRB). The 
required EPIRB must be--
    (1) Operational;
    (2) Stowed where it is readily accessible for testing and use; and
    (3) Stowed in a manner so that it will float free if the vessel 
sinks.
    (b) Each vessel must have an additional Class B EPIRB for every 
twenty-five persons onboard, for use in the lifeboats and liferafts.

[CGD 83-005, 51 FR 896, Jan. 9, 1986; 51 FR 10632, Mar. 28, 1986]



Sec. 169.556  Work vests.

    (a) Buoyant work vests carried under the permissive authority of 
this section must be approved under subpart 160.053 of this chapter.
    (b) Approved buoyant work vests are items of safety apparel and may 
be carried aboard vessels to be worn by persons when working near or 
over the water under favorable working conditions. Work vests are not 
accepted in lieu of any of the required number of approved personal 
flotation devices and must not be worn during drills and emergencies.
    (c) The approved buoyant work vests must be stowed separately from 
personal flotation devices, and in locations where they will not be 
confused with personal flotation devices.
    (d) Each work vest is subject to examination by a marine inspector 
to determine its serviceability. If a work vest is found not to be in a 
serviceable condition, then it must be repaired or removed from the 
vessel. If a work vest is beyond repair, it must be destroyed in the 
presence of the marine inspector.

                         Firefighting Equipment



Sec. 169.559  Fire pumps.

    (a) Each sailing school vessel must be equipped with fire pumps as 
required in Table 169.559(a).

                      Table 169.559(a)--Fire Pumps
------------------------------------------------------------------------
                                                Exposed and
                                                 partially    Protected
                    Length                       protected      water
                                                   water       service
                                                  service
------------------------------------------------------------------------
65 feet but less than 90 feet.................        \1\ 1            0
90 feet but less than 120 feet................        \2\ 1        \1\ 1
120 feet or greater...........................        \3\ 2        \1\ 1
------------------------------------------------------------------------
\1\ May be driven off a propulsion engine and may be used as a bilge
  pump.
\2\ Must be driven by a source of power independent of the propulsion
  engine and may be used as a bilge pump.
\3\ One pump may be driven off a propulsion unit and one pump may be
  used as a bilge pump. Pumps must be located in separate spaces.

    (b) Fire pump capacity must be in accordance with the following:

------------------------------------------------------------------------
            Vessel length                      Minimum capacity
------------------------------------------------------------------------
Less than 90 ft.....................  5.5 m3/hr (25 gpm).
90 feet but less than 120 ft........  11.0 m3/hr (50 gpm).
Greater than 120 ft.................  14.3 m3/hr (66.6 gpm).
------------------------------------------------------------------------

    (c) Each fire pump must be fitted with a pressure gage on the 
discharge side of the pump.
    (d) Each vessel must have a hand operated portable fire pump having 
a capacity of at least 1.1 m3/hr (5 gpm). This pump must be 
equipped with suction and discharge hose suitable for use in 
firefighting.

[[Page 60]]



Sec. 169.561  Firemain.

    (a) Each vessel required to be provided with a power-driven fire 
pump must also be provided with a fire main, hydrants, hoses and 
nozzles.
    (b) Fire hydrants must be of sufficient number and located so that 
any part of the vessel may be reached with an effective stream of water 
from a single length of hose.
    (c) All piping, valves, and fittings must be in accordance with good 
marine practice and suitable for the purpose intended.



Sec. 169.563  Firehose.

    (a) One length of firehose must be provided for each fire hydrant 
required.
    (b) Vessels less than 90 feet in length must have commercial 
firehose or equivalent of not over 1\1/2\ inch diameter or garden hose 
of not less than \5/8\ inch nominal inside diameter. If garden hose is 
used, it must be of a good commercial grade constructed of an inner 
rubber tube, plies of braided cotton reinforcement and an outer rubber 
cover, or of equivalent material, and must be fitted with a commercial 
garden hose nozzle of good grade bronze or equivalent metal.
    (c) Vessels of 90 feet or greater must have lined commercial 
firehose that conform to Underwriters' Laboratories, Inc. Standard 19 or 
Federal Specification ZZ-H-451. The firehose must be fitted with a 
combination nozzle approved under Sec. 162.027 of this chapter.
    (d) Each length of firehose must be a single piece 50 feet long.
    (e) Firehose must be connected to the hydrants at all times, except 
that, on open decks where no protection is afforded to the hose, it may 
be temporarily removed from the hydrant in heavy weather and stowed in 
an accessible nearby location.



Sec. 169.564  Fixed extinguishing system, general.

    (a) Fixed carbon dioxide or halogenated extinguishing systems must 
be installed to protect the following spaces--
    (1) The machinery and fuel tank spaces of all vessels, except where 
machinery and fuel tank spaces are so open to the atmosphere as to make 
the use of a fixed system ineffective;
    (2) The paint and oil rooms and similar hazardous spaces; and
    (3) The galley stove area, for vessels greater than 90 feet in 
length and certificated for exposed or partially protected water 
service.
    (b) Each fixed extinguishing system must be of an approved carbon 
dioxide or halogenated type and installed to the satisfaction of the 
Officer in Charge, Marine Inspection.



Sec. 169.565  Fixed carbon dioxide system.

    (a) The number of pounds of carbon dioxide required for each space 
protected must be equal to the gross volume of the space divided by the 
appropriate factor in Table 169.565(a).

                            Table 169.565(a)
------------------------------------------------------------------------
            Gross volume of compartment, cubic feet
---------------------------------------------------------------  Factor
                      Over--                        Not over--
------------------------------------------------------------------------
0................................................          500        15
500..............................................        1,600        16
1,600............................................        4,500        18
4,500............................................  ...........        20
------------------------------------------------------------------------

    (b) A separate supply of carbon dioxide is not required for each 
space protected. The total available supply must be sufficient for the 
space requiring the greatest amount.
    (c) Controls. (1) Each control and valve for the operation of the 
system must be outside the spaces protected and accessible at all times.
    (2) Each branch line must be fitted with an approved shutoff valve. 
Each valve must be kept closed at all times except to operate the 
particular system.
    (3) The arrangements must be such that the entire charge to any 
space can be introduced into the space by the operation of one valve 
selecting the space, and one control for releasing the required amount 
of fire extinguishing agent. The release control must be of an approved 
type and located adjacent to the branch line shutoff valve.
    (4) Complete but simple instructions for the operation of the system 
must be located in a conspicuous place at or near the releasing control 
device.
    (5) Each control valve to branch lines must be labeled to indicate 
the space served.
    (d) Piping. (1) The pipe and fittings for the extinguishing systems 
must be

[[Page 61]]

in accordance with the system manufacturer's approved design manual.
    (2) Each pipe, valve, and fitting of ferrous materials must be 
galvanized.
    (3) Each dead-end line must extend at least 2 inches beyond the last 
orifice and must be closed with cap or plug.
    (4) Each pipe, valve, and fitting must be securely supported and, 
where necessary, protected against injury.
    (5) Drains and dirt traps must be fitted where necessary to prevent 
accumulation of dirt or moisture. Each drain and dirt trap must be 
located in accessible locations but not in accommodation spaces.
    (e) Discharge outlets. (1) The area of discharge outlets shall be as 
specified in the manufacturer's approved design manual.
    (2) The discharge of the required amount of carbon dioxide must be 
complete within two minutes.
    (f) Cylinders. (1) Each cylinder must be securely fastened and 
supported, and where necessary protected against injury. Cylinders must 
be located outside the space protected.
    (2) Each cylinder must be mounted in an upright position or inclined 
not more than 30 deg. from the vertical, except that cylinders which are 
fitted with flexible or bent siphon tubes may be inclined not more than 
80 deg. from the vertical.
    (3) Each cylinder used for storing extinguishing agent must be 
approved and marked in accordance with Department of Transportation 
regulations.
    (4) Each cylinder must be mounted so it is readily accessible and 
capable of easy removal for recharging and inspection. Cylinders must be 
capable of being weighed in place.
    (5) Where subject to moisture, cylinders must be installed so that a 
space of at least 2 inches is provided between the flooring and the 
bottom of the cylinders.
    (6) Each cylinder storage area must be properly ventilated and the 
temperature inside must not exceed 130  deg. F.
    (g) Provision must be made by means of plugs, covers, dampers, etc., 
to prevent the admission of air into the space protected.
    (h) Systems must be fitted with a delayed discharge and an alarm 
bell arranged so the alarm sounds for at least twenty seconds before the 
carbon dioxide is released into the space.



Sec. 169.567  Portable extinguishers.

    (a) The minimum number of portable fire extinguishers required on 
each vessel is determined by the Officer in Charge, Marine Inspection, 
in accordance with Table 169.567(a) and other provisions of this 
subpart.

                                                Table 169.567(a)
----------------------------------------------------------------------------------------------------------------
                                 Total number            Type extinguishers permitted
       Space protected          extinguishers  ------------------------------------------------    Coast Guard
                                   required              Medium               Minimum size       classification
----------------------------------------------------------------------------------------------------------------
Living space and open boats..  1 per 1000 cu.   Halon 1211 of 1301......  2\1/2\ pounds.......
                                ft. of space.
                                                Foam....................  1\1/4\ gallons......
                                                Carbon dioxide..........  4 pounds............  B-I.
                                                Dry chemical............  2 pounds............
Propulsion machinery space     1..............  Foam....................  1\1/4\ gallons......
 with fixed CO2 or halon
 system.
 
                               Carbon dioxide.
                               4 pounds.......
                               B-I............
                                                Dry chemical............  2 pounds............
                                                Halon 1211 or 1301......  2\1/2\ pounds.......
Propulsion machinery space     2..............  Foam....................  2\1/2\ gallons......
 without fixed CO2 or halon
 system.
 
                               Carbon dioxide.
                               15 pounds......
                               B-II...........
                                                Dry chemical............  10 pounds...........
                                                Halon 1211 or 1301......  10 pounds...........
Galley (without fixed system)  1 per 500 cu.    Foam....................  2\1/2\ gallons......
                                ft.

[[Page 62]]

 
                                                Carbon dioxide..........  15 pounds...........  B-II.
                                                Dry chemical............  10 pounds...........
                                                Halon 1211 or 1301......  10 pounds...........
----------------------------------------------------------------------------------------------------------------

    (b) The Officer in Charge, Marine Inspection, may permit the use of 
any approved fire extinguishers, including semiportable extinguishers, 
which provide equivalent fire protection.
    (c) All portable fire extinguishers installed on vessels must be of 
an approved type.
    (d) Portable fire extinguishers must be stowed in a location 
convenient to the space protected.
    (e) Portable fire extinguishers must be installed and located to the 
satisfaction of the Officer in Charge, Marine Inspection.
    (f) Portable fire extinguishers which are required to be protected 
from freezing must not be located where freezing temperatures may be 
expected.
    (g) Each vessel must carry spare charges for at least 50 percent of 
each size and variety of hand portable extinguishers required. For units 
that can not be readily recharged on the vessel, one spare extinguisher 
for each classification carried onboard must be provided in lieu of 
spare charges.

[CGD 83-005, 51 FR 897, Jan. 9, 1986; 51 FR 3785, Jan. 30, 1986]



Sec. 169.569  Fire axes.

    (a) Each vessel must carry at least the number of fire axes set 
forth in Table 169.569(a). The Officer in Charge, Marine Inspection may 
require additional fire axes necessary for the proper protection of the 
vessel.

                            Table 169.569(a)
------------------------------------------------------------------------
                     Length
------------------------------------------------      Number of axes
        Over                   Not over
------------------------------------------------------------------------
                                      65                        0
           65                         90                        1
           90                        120                        2
          120                        150                        3
          150         .........................                 4
------------------------------------------------------------------------

    (b) Fire axes must be stowed so as to be readily available in the 
event of emergency.
    (c) If fire axes are not located in the open or behind glass, they 
must be placed in marked enclosures containing the fire hose.



                Subpart 169.600 Machinery and Electrical



Sec. 169.601  General.

    (a) The regulations in this subpart contain requirements for the 
design, construction and installation of machinery on sailing school 
vessels.
    (b) Machinery must be suitable in type and design for the purpose 
intended. Installations of an unusual type and those not addressed by 
this subpart are subject to the applicable regulations in Subchapter F 
(Marine Engineering) and Subchapter J (Electrical Engineering) of this 
chapter.
    (c) The use of liquefied inflammable gases, such as propane, 
methane, butane, etc., as fuel, except for cooking purposes, is 
prohibited.

                Internal Combustion Engine Installations



Sec. 169.605  General.

    (a) Generators, starting motors, and other spark producing devices 
must be mounted as high above the bilges as practicable.
    (b) Gages to indicate engine cooling water temperature, exhaust 
cooling water temperature and engine lubricating oil pressure must be 
provided and located in plain view.
    (c) All electrical components of the engine must be protected in 
accordance with Sec. 183.410 of Title 33, Code of Federal Regulations to 
prevent ignition of flammable vapors.

[[Page 63]]



Sec. 169.607  Keel cooler installations.

    (a) Except as provided in this section, keel cooler installations 
must meet the requirements of Sec. 56.50-96 of this chapter.
    (b) Approved metallic flexible connections may be located below the 
deepest load waterline if the system is a closed loop below the 
waterline and its vent is located above the waterline.
    (c) Fillet welds may be used in the attachment of channels and half 
round pipe sections to the bottom of the vessel.
    (d) Short lengths of approved nonmetallic flexible hose may be used 
at machinery connections fixed by hose clamps provided that--
    (1) The clamps are of a corrosion resistant material;
    (2) The clamps do not depend on spring tension for their holding 
power; and
    (3) Two clamps are used on each end of the hose or one hose clamp is 
used and the pipe ends are expanded or beaded to provide a positive stop 
against hose slippage.



Sec. 169.608  Non-integral keel cooler installations

    (a) Hull penetrations for non-integral keel cooler installations 
must be made through a cofferdam or at a sea chest.
    (b) Non-integral keel coolers must be suitably protected against 
damage from debris and grounding by recessing the unit into the hull or 
by the placement of protective guards.
    (c) Each non-integral keel cooler hull penetration must be equipped 
with a shutoff valve.

[CGD 83-005, 51 FR 896, Jan. 9, 1986, as amended by USCG-2000-7790, 65 
FR 58464, Sept. 29, 2000]



Sec. 169.609  Exhaust systems.

    Engine exhaust installations and associated cooling sytems must be 
built in accordance with the requirements of American Boat and Yacht 
Council, Inc. Standard P-1, ``Safe Installation of Exhaust Systems for 
Propulsion and Auxiliary Machinery'' and the following additional 
requirements:
    (a) All exhaust installations with pressures in excess of 15 pounds 
per square inch gage or employing runs passing through living or working 
spaces must meet the material specifications of part 56 of Title 46, 
Code of Federal Regulations.
    (b) Horizontal dry exhaust pipes are permitted if they do not pass 
through living or berthing spaces, terminate above the deepest load 
waterline, are arranged to prevent entry of cold water from rough seas, 
and are constucted of corrosion resistant material at the hull 
penetration.
    (c) When the exhaust cooling system is separate from the engine 
cooling system, a suitable warning device must be provided to indicate a 
failure of water flow in the exhaust cooling system.



Sec. 169.611  Carburetors.

    (a) This section applies to all vessels having gasoline engines.
    (b) Each carburetor other than a down-draft type, must be equipped 
with integral or externally fitted drip collectors of adequate capacity 
and arranged so as to permit ready removal of fuel leakage. Externally 
fitted drip collectors must be covered with flame screens.
    (c) All gasoline engines must be equipped with an acceptable means 
of backfire flame control. Installations of backfire flame arresters 
bearing basic Approval Nos. 162.015 or 162.041 or engine air and fuel 
induction systems bearing basic Approval Nos. 162.015 or 165.042 may be 
continued in use as long as they are serviceable and in good condition. 
New installations or replacements must meet the applicable requirements 
of part 58, subpart 58.10 (Internal Combustion Engine Installations) of 
this chapter.

[CGD 83-005, 51 FR 896, Jan. 9, 1986, as amended by CGD 88-032, 56 FR 
35827, July 29, 1991]

                              Fuel Systems



Sec. 169.613  Gasoline fuel systems.

    (a) Except as provided in paragraph (b) each gasoline fuel system 
must meet the requirements of Sec. 56.50-70 of this chapter
    (b) Each vessel of 65 feet and under must meet the requirements of 
Secs. 182.15-25, 182.15-30, 182.15-35 and 182.15-40 of this chapter.

[[Page 64]]



Sec. 169.615  Diesel fuel systems.

    (a) Except as provided in paragraph (b) each diesel fuel system must 
meet the requirements of Sec. 56.50-75 of this chapter.
    (b) Each vessel of 65 feet and under must meet the requirements of 
Secs. 182.20-22, 182.20-25, 182,20-30, 182.20-35 and 182.20-40 of this 
chapter.

                            Steering Systems



Sec. 169.618  General.

    (a) Each vessel must have an effective steering system.
    (b) The steering system must be designed to withstand all 
anticipated loading while under sail, including shocks to the rudder. 
Additionally, the steering system on vessels with an auxiliary means of 
propulsion must not be susceptible to damage or jamming at the vessel's 
maximum astern speed.
    (c) The main steering gear must be capable of moving the rudder from 
hard-over to hard-over at an average rate of not less than 2\1/3\ deg. 
per second with the vessel at design service speed (ahead).



Sec. 169.619  Reliability.

    (a) Except where the OCMI judges it impracticable, the steering 
system must--
    (1) Provide continued or restored steering capability in the event 
of a failure or malfunction of any single steering system component 
other than the rudder or rudder stock;
    (2) Be independent of other systems, including auxiliary propulsion 
machinery; and
    (3) Be operable in the event of localized fire or flooding.
    (b) A main and independent auxiliary steering gear must be provided, 
except when--
    (1) A small vessel uses a tiller or direct mechanical linkage as the 
primary means of controlling the rudder; or
    (2) Installation of an auxiliary steering gear is not possible.

    Note: A partial reduction of normal steering capability as a result 
of malfunction or failure is acceptable. This reduction should not be 
below that necessary for the safe navigation of the vessel.

    (c) The strength and reliability of any component that is not 
provided in duplicate must be suitable to the cognizant OCMI. Where 
redundant or backup equipment or components are provided to meet the 
requirements of paragraphs (a) and (b) of this section, the following 
must be provided:
    (1) A means to readily transfer from the failed equipment or 
component to the backup.
    (2) Readily available tools or equipment necessary to make the 
transfer.
    (3) Instructions for transfer procedures, posted at the main 
steering location.
    (4) A means to steady the rudder while making the transfer.



Sec. 169.621  Communications.

    A reliable means of voice communications must be provided between 
the main steering location and each alternate steering location.



Sec. 169.622  Rudder angle indicators.

    Each vessel must have a rudder angle indicator at the main steering 
location that meets the requirements of Sec. 113.40-10 of this chapter, 
except where a tiller or direct mechanical linkage is the primary means 
of controlling the rudder.



Sec. 169.623  Power-driven steering systems.

    (a) Power-driven steering systems must have means to be brought into 
operation from a dead ship condition, without external aid. The system 
must automatically resume operation after an electric power outage.
    (b) Control of power-driven steering systems from the main steering 
control location must include, as applicable--
    (1) Control of any necessary ancillary device (motor, pump, valve, 
etc.);
    (2) A pilot light to indicate operation of each power unit; and
    (3) Visual and audible alarms to indicate loss of power to the 
control system or power units and overload of electric motors.
    (c) Overcurrent protection for steering system electric circuits 
must meet Sec. 111.93-11 of this chapter, as applicable.

[[Page 65]]

                               Ventilation



Sec. 169.625  Compartments containing diesel machinery.

    (a) Spaces containing machinery must be fitted with adequate 
dripproof ventilators, trunks, louvers, etc., to provide sufficient air 
for proper operation of the propulsion and auxiliary engines.
    (b) Air-cooled propulsion and auxiliary engines installed below deck 
must be fitted with air intake ducts or piping from the weather deck. 
The ducts or piping must be arranged and supported to safely sustain 
stresses induced by weight and engine vibration and to minimize transfer 
of vibration to the supporting structure. Prior to installing 
ventilation for the engines, plans or sketches showing the machinery 
arrangement including air intakes, exhaust stack, method of attachment 
of ventilation ducts to the engine, location of spark arresting mufflers 
and capacity of ventilation blowers must be submitted to the OCMI for 
approval.
    (c) Spaces containing machinery must be fitted with at least two 
ducts to furnish natural or mechanical supply and exhaust ventilation. 
One duct must extend to a point near the bottom of the compartment, and 
be installed so that the ordinary collection of water in the bilge will 
not trap the duct. Where forced ventilation is installed, the duct 
extending to the bottom of the compartment must be the exhaust. The 
total inlet area and the total outlet area of ventilation ducts must be 
not less than one square inch for each foot of beam of the vessel. These 
minimum areas must be increased when such ducts are considered part of 
the air supply to the engines.
    (d) All ducts must be of rigid permanent noncombustible 
construction, properly fastened, supported, and reasonably gastight from 
end to end.
    (e) All supply ducts for ventilation purposes must be provided with 
cowls or scoops having a free area not less than twice the required duct 
area. When the cowls or scoops are screened, the mouth area must be 
increased to compensate for the area of the screen wire. Dampers are 
prohibited in supply ducts. Cowls or scoops must be kept open at all 
times except when weather would endanger the vessel if the openings were 
not temporarily closed. Supply and exhaust openings must not be located 
where the natural flow of air is unduly obstructed, or adjacent to 
possible sources of vapor ignition, and must not be located where 
exhaust air may be taken into the supply vents.



Sec. 169.627  Compartments containing diesel fuel tanks.

    Unless they are adequately ventilated, enclosed compartments or 
spaces containing diesel fuel tanks and no machinery must be provided 
with a gooseneck vent of not less than 2\1/2\ inches in diameter. The 
vent opening must not be located adjacent to possible sources of vapor 
ignition.



Sec. 169.629  Compartments containing gasoline machinery or fuel tanks.

    Spaces containing gasoline machinery or fuel tanks must have natural 
supply and mechanical exhaust ventilation meeting the requirements of 
American Boat and Yacht Council Standard H-2.5, ``Design and 
Construction; Ventilation of Boats Using Gasoline.



Sec. 169.631  Separation of machinery and fuel tank spaces from accommodation spaces.

    (a) Machinery and fuel tank spaces must be separated from 
accommodation spaces by watertight or vapor tight bulkheads of double 
diagonal wood, marine plywood, steel plate, or equivalent construction.
    (b) On vessels less than 90 feet in length, segregation may be by 
means of a watertight or vapor tight engine box.

                             Piping Systems



Sec. 169.640  General.

    (a) Vital piping systems, as defined in Sec. 169.642 of this 
subpart, must meet the material and pressure design requirements of 
Subchapter F of this chapter.
    (b) Except as provided in this paragraph, nonmetallic piping system 
materials must meet the applicable requirements of 46 CFR 56.60-25.
    (1) Rigid nonmetallic materials are acceptable for use in bilge, 
ballast, and machinery-connected piping systems on vessels less than 120 
feet in length,

[[Page 66]]

provided that bilge and fire systems do not use the same piping.
    (2) Nonmetallic piping is prohibited in fuel systems except where 
flexible hose is permitted.
    (3) Rigid nonmetallic materials may be used in non-vital systems.



Sec. 169.642  Vital systems.

    For the purpose of this part, the following are considered vital 
systems--
    (a) A marine engineering system identified by the OCMI as being 
crucial to the survival of the vessel or to the protection of the 
personnel on board; and
    (b) On vessels greater than 120 feet in length--
    (1) Bilge system;
    (2) Ballast system;
    (3) Fire protection system;
    (4) Fuel oil system; and
    (5) Steering and steering control system.

                              Bilge Systems



Sec. 169.650  General.

    All vessels must be provided with a satisfactory arrangement for 
draining any compartment, other than small buoyancy compartments, under 
all practical conditions. Sluice valves are not permitted in watertight 
bulkheads except as specified in Sec. 169.652(a).



Sec. 169.652  Bilge piping.

    (a) All vessels of 26 feet in length and over must be provided with 
individual bilge lines and suction for each compartment except that the 
space forward of the collision bulkhead may be serviced by a sluice 
valve or portable bilge pump if the arrangement of the vessel is such 
that ordinary leakage can be removed this way.
    (b) The bilge pipe on vessels 65 feet in length and under must be 
not less than one inch nominal pipe size. On vessels greater than 65 but 
less than 120 feet in length the bilge pipe must be not less than one 
and one-half inches. Piping on vessels of 120 feet or greater or of 100 
gross tons or greater must meet the requirements contained in 
Sec. 56.50-50 of this chapter.
    (c) Each bilge suction must be fitted with a suitable strainer 
having an open area not less than three times the area of the bilge 
pipe.
    (d) Each individual bilge suction line must be led to a central 
control point or manifold. Each line must be provided with a stop valve 
at the control point or manifold and a check valve at some accessible 
point in the bilge line, or a stop-check valve located at the control 
point or manifold.
    (e) Each bilge pipe piercing the collision bulkhead must be fitted 
with a screw-down valve located on the forward side of the collision 
bulkhead and operable from above the weather deck.



Sec. 169.654  Bilge pumps.

    (a) Vessels of less than 65 feet in length must have a portable hand 
bilge pump having a maximum capacity of 5 gpm.
    (b) In addition to the requirements of paragraph (a) of this 
section, vessels of 26 feet but less than 40 feet in length must have a 
fixed hand bilge pump or fixed power bilge pump having a minimum 
capacity of 10 gpm. If a fixed hand pump is installed, it must be 
operable from on deck.
    (c) In addition to the requirements of paragraph (a) of this 
section, vessels of 40 feet but less than 65 feet must have a fixed 
power bilge pump having a minimum capacity of 25 gpm.
    (d) Vessels of 65 feet in length but less than 120 feet and under 
100 gross tons must have two fixed power bilge pumps having a combined 
minimum capacity of 50 gpm.
    (e) Vessels of 120 feet or greater and vessels of 100 gross tons and 
over must have two fixed power pumps meeting the capacity requirements 
of Sec. 56.50-55(c) of this chapter.
    (f) Each power driven bilge must be self priming.
    (g) Each fixed bilge pump required by this section must be 
permanently connnected to the bilge main.
    (h) Bilge pumps may also be connected to the firemain provided that 
the bilge system and firemain system may be operated simultaneously.

                               Electrical



Sec. 169.662  Hazardous locations.

    Electrical equipment must not be installed in lockers that are used 
to store

[[Page 67]]

paint, oil, turpentine, or other flammable liquids unless the equipment 
is explosion-proof or intrinsically safe in accordance with 
Sec. 111.105-9 or Sec. 111.105-11 of this chapter.

 Electrical Installations Operating at Potentials of Less Than 50 Volts 
                 on Vessels of Less Than 100 Gross Tons



Sec. 169.664  Applicability.

    The requirements in this subpart apply to electrical installations 
operating at potentials of less than 50 volts on vessels of less than 
100 gross tons.



Sec. 169.665  Name plates.

    Each generator, motor and other major item f power equipment must be 
provided with a name plate indicating the manufacturer's name, its 
rating in volts and amperes or in volts and watts and, when intended for 
connection to a normally grounded supply, the grounding polarity.



Sec. 169.666  Generators and motors.

    (a) Each vessel of more than 65 feet in length having only 
electrically driven fire and bilge pumps must have two generators. One 
of these generators must be driven by a means independent of the 
auxiliary propulsion plant. A generator that is not independent of the 
auxiliary propulsion plant must meet the requirements of Sec. 111.10-
4(c) of this chapter.
    (b) Each generator and motor must be in a location that is 
accessible, adequately ventilated, and as dry as practicable.
    (c) Each generator and motor must be mounted as high as practicable 
above the bilges to avoid damage by splash and to avoid contact with low 
lying vapors.
    (d) Each generator must be protected from overcurrent by a circuit 
breaker, fuse or an overcurrent relay.



Sec. 169.667  Switchboards.

    (a) Each switchboard must be in as dry a location as praticable, 
accessible, protected from inadvertent entry, and adequately ventilated. 
All uninsulated current carrying parts must be mounted on nonabsorbent, 
noncombustible, high dielectric insulating material.
    (b) Each switchboard must be--
    (1) Totally enclosed; and
    (2) Of the dead front type.
    (c) Each ungrounded conductor of a circuit must have at the point of 
attachment to the power source either--
    (1) A Circuit breaker; or
    (2) A switch and fuse.
    (d) Each switch other than one mounted on a switchboard must be of 
the enclosed type.



Sec. 169.668  Batteries.

    (a) Each battery must be in a location that allows the gas generated 
in charging to be easily dissipated by natural or induced ventilation.
    (b) Except as provided in paragraph (c) of this section, a battery 
must not be located in the same compartment with a gasoline tank or 
gasoline engine.
    (c) If compliance with paragraph (b) of this section is not 
practicable, the battery must be effectively screened by a cage or 
similar structure to minimize the danger of accidental spark through 
dropping a metal object across the terminals.
    (d) Each battery must be located as high above the bilges as 
practicable and secured against shifting with motion of the vessel. Each 
battery and battery connection must be accessible so as to permit 
removal.
    (e) All connections must be made to battery terminals with permanent 
type connectors. Spring clips or other temporary type clamps may not be 
used.
    (f) Each battery must be located in a tray of lead or other suitable 
material resistant to deteriorating action by the electrolyte.
    (g) Each battery charger intended for connection to a commercial 
supply voltage must employ a transformer of the isolating type. An 
ammeter that is readily visible must be included in the battery charger 
circuit.
    (h) A voltage dropping resistor, provided for charging a battery, 
must be mounted in a ventilated noncombustible enclosure that prevents 
hazardous temperatures at adjacent combustible materials.
    (i) The main supply conductor from the battery must have an 
emergency switch, located as close as practicable

[[Page 68]]

to the battery, that opens all ungrounded conductors.
    (j) If a storage battery is not in the same compartment and adjacent 
to the panel or box that distributes power to the various lighting, 
motor and appliance branch circuits, the storage battery lead must be 
fused at the battery.



Sec. 169.669  Radiotelephone equipment.

    A separate circuit from the switchboard must be provided for each 
radiotelephone installation.



Sec. 169.670  Circuit breakers.

    Each circuit breaker must be of the manually reset type designed 
for--
    (a) Inverse time delay;
    (b) Instantaneous short circuit protection; and
    (c) Repeated opening of the circuit without damage to the circuit 
breaker.



Sec. 169.671  Accessories.

    Each light, receptacle and switch exposed to the weather must be 
watertight and must be constructed of corrosion-resistant material.



Sec. 169.672  Wiring for power and lighting circuits.

    (a) Wiring for power and lighting circuits must have copper 
conductors, of 14 AWG or larger, and--
    (1) Meet Article 310-8 and Table 310-13 of the National Electrical 
Code;
    (2) Be listed as ``50 volt boat cable''; or
    (3) Meet subpart 111.60 of this chapter.
    (b) Wiring for power and lighting circuits on new vessels must have 
stranded conductors.
    (c) Conductors must be sized so that--
    (1) They are adequate for the loads carried; and
    (2) The voltage drop at the load terminals is not more than 10 
percent.



Sec. 169.673  Installation of wiring for power and lighting circuits.

    (a) Wiring must be run as high as practicable above the bilges.
    (b) Wiring, where subject to mechanical damage, must be protected.
    (c) A wiring joint or splice must be mechanically secure and made in 
a junction box or enclosure.
    (d) Unless a splice is made by an insulated pressure wire connector, 
it must be thoroughly soldered and taped with electrical insulating tape 
or the soldered joint must be otherwise protected to provide insulation 
equivalent to that of the conductors joined.
    (e) Where ends of stranded conductors are to be clamped under 
terminal screws, they must be formed and soldered unless fitted with 
pressure terminal connectors.
    (f) Conductors must be protected from overcurrent in accordance with 
their current-carrying capacities.
    (g) Conductors supplying motors and motor operated appliances must 
be protected by a separate overcurrent device that is responsive to 
motor current. This device must be rated or set at not more than 125 
percent of the motor full-load current rating.
    (h) On metallic vessels the enclosures and frames of all major 
electrical equipment must be permanently grounded to the metal hull of 
the vessel by the mounting bolts or other means. Cable armor must not be 
used as the normal grounding means.
    (i) On nonmetallic vessels, the enclosures and frames of major 
electrical equipment must be bonded together to a common ground by a 
normally noncurrent carrying conductor.
    (j) For grounded systems the negative polarity of the supply source 
must be grounded to the metal hull or, for nonmetallic vessels, 
connected to the common ground.
    (k) On a nonmetallic vessel, where a ground plate is provided for 
radio equipment it must be connected to the common ground.
    (l) For grounded systems, hull return must not be used except for 
engine starting purposes.

Electrical Installations Operating at Potentials of 50 Volts or More on 
                   Vessels of Less Than 100 Gross Tons



Sec. 169.674  Applicability.

    The requirements in this subpart apply to electrical installations 
operating at potentials of 50 volts or more, on vessels of less than 100 
gross tons.

[[Page 69]]



Sec. 169.675  Generators and motors.

    (a) Each generator and motor must be fitted with a nameplate of 
corrosion-resistant material marked with the following information as 
applicable:
    (1) Name of manufacturer.
    (2) Manufacturer's type and frame designation.
    (3) Output in kilowatts or horsepower rating.
    (4) Kind of rating (continuous, intermittent, etc.).
    (5) Revolutions per minute at rated load.
    (6) Amperes at rated load.
    (7) Voltage.
    (8) Frequency if applicable.
    (9) Number of phases, if applicable.
    (10) Type of winding (for direct-current motors).
    (b) Each vessel of more than 65 feet in length having only 
electrically driven fire and bilge pumps must have two generators. One 
of these generators must be driven by a means independent of the 
auxiliary propulsion plant. A generator that is not independent of the 
auxiliary propulsion plant must meet the requirements of Sec. 111.10-
4(c) of this chapter.
    (c) Each generator and motor must be in a location that is 
accessible, adequately ventilated, and as dry as practicable.
    (d) Each generator and motor must be mounted as high as practicable 
above the bilges to avoid damage by splash and to avoid contact with low 
lying vapors.
    (e) Each motor for use in a location exposed to the weather must be 
of the watertight or waterproof type or must be enclosed in a watertight 
housing. The motor enclosure or housing must be provided with a check 
valve for drainage or a tapped hole at the lowest part of the frame for 
attaching a drain pipe or drain plug.
    (f) Except as provided in paragraphs (g) and (h) of this section, 
each generator and motor for use in a machinery space must be designed 
for an ambient temperature of 50 degrees C. (122 degrees F.).
    (g) A generator or motor may be designed for an ambient temperature 
of 40 degrees C. (104 degrees F.) if the vessel is designed so that the 
ambient temperature in the machinery space will not exceed 40 degrees C. 
under normal operating conditions.
    (h) A generator or motor designed for 40 degrees C. may be used in a 
50 degrees C. ambient location provided it is derated to 80 percent of 
full load rating, and the rating or setting of the overcurrent device is 
reduced accordingly. A nameplate specifying the derated capacity must be 
provided for each motor and generator.
    (i) A voltmeter and an ammeter must be provided that can be used for 
measuring voltage and current of each generator that is in operation. 
For each alternating-current generator a means for measuring frequency 
must also be provided. Additional control equipment and measuring 
instruments must be provided, if needed, to ensure satisfactory 
operation of each generator.



Sec. 169.676  Grounded electrical systems.

    (a) Except as provided in paragraph (b) of this section, each 
electrical system must meet subpart 111.05 of this chapter.
    (b) Ground detection is not required.



Sec. 169.677  Equipment protection and enclosure.

    (a) Except as provided in this section, all electrical equipment 
including motors, generators, controllers, distribution panels, 
consoles, etc., must be at least dripproof and protected.
    (b) Equipment mounted on a hinged door of an enclosure must be 
constructed or shielded so that no live parts of the door mounted 
equipment will be exposed to accidental contact by a person with the 
door open and the circuit energized.
    (c) Any cabinet, panel, or box containing more than one source of 
potential in excess of 50 volts must be fitted with a sign warning 
personnel of this condition and identifying the circuits to be 
disconnected to remove all the potentials in excess of 50 volts.
    (d) Each distribution panelboard must be enclosed.



Sec. 169.678  Main distribution panels and switchboards.

    (a) A distribution panel to which the generator leads are connected, 
and

[[Page 70]]

from which the electric leads throughout the vessel directly or 
indirectly receive their electric power is a switchboard.
    (b) Each switchboard must have a driphood or an equivalent means of 
protecting against falling liquid.
    (c) Nonconductive deck materials, mats, or gratings must be provided 
in front of each switchboard.
    (d) If the switchboard is accessible from the rear, nonconductive 
deck material, mats, or gratings must be provided in the rear of the 
switchboard.
    (e) Metal cases of instruments and secondary windings of instrument 
transformers must be grounded.
    (f) Each switchboard must be placed in a location that is 
accessible, adequately ventilated, and as dry as practicable. All 
uninsulated current carrying parts must be mounted on nonabsorbent, 
noncombustible, high dielectric insulating material.
    (g) Each switchboard must be of the dead front type.
    (h) Each switchboard must have front and, if accessible from the 
back, rear non-conducting hand rails except on vessels where the 
surrounding bulkheads and decks are of an insulating material such as 
fiberglass or wood.



Sec. 169.679  Wiring for power and lighting circuits.

    Wiring for each power and lighting circuit must meet subpart 111.60 
of this chapter.



Sec. 169.680  Installation of wiring for power and lighting circuits.

    (a) Wiring must be run as high as practicable above the bilges.
    (b) Each cable installed where particularly susceptible to damage 
such as locations in way of doors, hatches, etc, must be protected by 
removable metal coverings, angle irons, pipe, or other equivalent means. 
All metallic coverings must be electrically continuous and grounded to 
the metal hull or common ground, and all coverings such as pipe that may 
trap moisture must be provided with holes for drainage. Where cable 
protection is carried through a watertight deck or bulkhead, the 
installation must maintain the watertight integrity of the structure.
    (c) Each cable entering a box or fitting must be protected from 
abrasion, and must meet the following requirements:
    (1) Each opening through which conductors enter must be adequately 
closed.
    (2) Cable armor must be secured to the box or fitting.
    (3) In damp or wet locations, each cable entrance must be 
watertight.
    (d) The enclosures of all equipment must be permanently grounded to 
the metal hull of the vessel by the mounting bolts or other means. Cable 
armor must not be used as the normal grounding means.
    (e) On a nonmetallic vessel, the enclosures must be bonded to a 
common ground by a normal noncurrent carrying conductor.
    (f) On a nonmetallic vessel, where a ground plate is provided for 
radio equipment it must be connected to the common ground.
    (g) Except as provided in paragraph (i) of this section, each 
armored cable must have a metallic covering that is--
    (1) Electrically and mechanically continuous; and
    (2) Grounded at each end of the run to--
    (i) The metal hull; or
    (ii) The common ground required by paragraph (e) of this section on 
nonmetallic vessels.
    (h) In lieu of being grounded at each end of the run as required by 
paragraph (g) of this section, final sub-circuits may be grounded at the 
supply end only.
    (i) All equipment, including switches, fuses, lampholders, etc., 
must be of a type designed for the proper potential and be so 
identified.
    (j) Except as provided in paragraph (l) of this section, each 
junction box, connection box, and outlet box, must have an internal 
depth of at least 1\1/2\ inches.
    (k) For a box incorporated in a fixture having a volume of not less 
than 20 cubic inches, the depth may be decreased to not less than 1 
inch.
    (l) Each conductor, except a fixture wire within a box, must have a 
free space computed using the volume per conductor given in Table 
169.680(l). If a fitting or device such as a cable clamp,

[[Page 71]]

hickey, switch or receptacle is contained in the box, each fitting or 
device must count as one conductor.

                            Table 169.680(l)
------------------------------------------------------------------------
                                                   Free space for each
           Size of conductor A.W.G.              conductor in box, cubic
                                                         inches
------------------------------------------------------------------------
14............................................               2.0
12............................................               2.25
8.............................................               2.50
1.............................................               3.0
------------------------------------------------------------------------

    (m) Each junction box, connection box, and outlet box for use in a 
damp or wet location must be of watertight construction.
    (n) Each lighting fixture must be constructed in accordance with the 
requirements of Subchapter J of this chapter.
    (o) A separate circuit from the switchboard must be provided for 
each radiotelephone installation.
    (p) Knife switches must be so placed or designed that gravity or 
vibration will not tend to close them. Knife switches, unless of the 
double throw type, must be connected so that the blades are dead when 
the switch is in the open position.
    (q) Circuits must be connected to the fuse end of switches and to 
the coil end of circuit breakers, except that generator leads or 
incoming feeders may be connected to either end of circuit breakers.
    (r) Receptacle outlets and attachment plugs for the attachment of 
portable lamps, tools, and similar apparatus supplied as ship's 
equipment and operating at 100 volts or more, must provide a grounding 
pole and a grounding conductor in the portable cord to ground the non-
current carrying metal parts of the apparatus.
    (s) Receptacle outlets of the type providing a grounded pole must be 
of a configuration that will not permit the dead metal parts of portable 
apparatus to be connected to a live conductor.



Sec. 169.681  Disconnect switches and devices.

    (a) Externally operable switches or circuit breakers must be 
provided for motor and controller circuits and must open all ungrounded 
conductors of the circuit.
    (b) If the disconnect means is not within sight of the equipment 
that the circuit supplies, means must be provided for locking the 
disconnect device in the ``open'' position.
    (c) For circuits protected by fuses, the disconnect switch required 
for fuses in Sec. 169.683(b) of this chapter is adequate for 
disconnecting the circuit from the supply.
    (d) The disconnect means may be in the same enclosure with motor 
controllers.
    (e) Disconnect means must be provided to open all conductors of 
generator and shore power cables.

[CGD 83-005, 51 FR 896, Jan. 9, 1986; 51 FR 10632, Mar. 28, 1986]



Sec. 169.682  Distribution and circuit loads.

    (a) Except as provided in paragraph (b) of this section, the 
connected load on a lighting branch circuit must not exceed 80 percent 
of the rating of the overcurrent protective device, computed using the 
greater of--
    (1) The lamp sizes to be installed; or
    (2) 50 watts per outlet.
    (b) Circuits supplying electrical discharge lamps must be computed 
using the ballast input current.
    (c) The branch circuit cables for motor and lighting loads must be 
no smaller than No. 14 AWG.



Sec. 169.683  Overcurrent protection, general.

    (a) Overcurrent protection must be provided for each ungrounded 
conductor for the purpose of opening the electric circuit if the current 
reaches a value that causes an excessive or dangerous temperature in the 
conductor or conductor insulation.
    (b) Disconnect means must be provided on the supply side of and 
adjacent to all fuses for the purpose of deenergizing the fuses for 
inspection and maintenance purposes. All disconnect means must open all 
ungrounded conductors of the circuit simultaneously.
    (c) Each conductor, including a generator lead and shore power 
cable, must be protected in accordance with its current-carrying 
capacity.
    (d) If the allowable current-carrying capacity of a conductor does 
not correspond to a standard size fuse, the next larger size or rating 
may be used

[[Page 72]]

but not exceeding 150 percent of the allowable current-carrying capacity 
of the conductor.
    (e) Plug (screw in type) fuses and fuseholders must not be used in 
circuits exceeding 125 volts between conductors. The screw shell of plug 
type fuseholders must be connected to the load of the circuit. Edison 
base fuses may not be used.
    (f) If the allowable current-carrying capacity of the conductor does 
not correspond to a standard rating of circuit breakers, the next larger 
rating not exceeding 150 percent of the allowable current-carrying 
capacity of the conductor may be used.
    (g) Lighting branch circuits must be protected against overcurrent 
either by fuses or circuit breakers rated at not more than 20 amperes.
    (h) Each circuit breaker must be of the manually reset type designed 
for--
    (1) Inverse time delay;
    (2) Instantaneous short circuit protection; and
    (3) Repeated opening of the circuit in which it is to be used 
without damage to the circuit breaker.
    (i) Circuit breakers must indicate whether they are in the open or 
closed position.
    (j) Devices such as instruments, pilot lights, ground detector 
lights, potential transformers, etc. must be supplied by circuits 
protected by overcurrent devices.
    (k) Each generator must be protected with an overcurrent device set 
at a value not exceeding 15 percent above the full-load rating for 
continuous rated machines or the overload rating for special rated 
machines.



Sec. 169.684  Overcurrent protection for motors and motor branch circuits.

    (a) Except as provided in paragraph (d) of this section, each motor 
must be provided with running protection against overcurrent. A 
protective device integral with the motor that is responsive to motor 
current or to both motor current and temperature may be used.
    (b) The motor branch circuit conductors, the motor control 
apparatus, and the motors must be protected against overcurrent due to 
short circuits or grounds with overcurrent devices.
    (c) The motor branch circuit overcurrent device must be capable of 
carrying the starting current of the motor.
    (d) Each manually started continous duty motor, rated at one 
horsepower or less, that is within sight from the starter location, is 
considered as protected against overcurrent by the overcurrent device 
protecting the conductors of the branch circuit.



Sec. 169.685  Electric heating and cooking equipment.

    (a) Each electric space heater for heating rooms and compartments 
must be provided with thermal cutouts to prevent overheating. Each 
heater must be so constructed and installed as to prevent the hanging of 
towels, clothing, etc., on the heater, and to prevent overheating of 
heater parts and adjacent bulkheads or decks.
    (b) All electric cooking equipment, attachments, and devices, must 
be of rugged construction and so designed as to permit complete 
cleaning, maintenance, and repair.
    (c) Doors for electric cooking equipment must be provided with heavy 
duty hinges and locking devices to prevent accidental opening in heavy 
seas.
    (d) Electric cooking equipment must be mounted to prevent 
dislodgment in heavy seas.
    (e) For each grill or similar type cooking equipment, means must be 
provided to collect grease or fat and to prevent spillage on wiring or 
the deck.
    (f) Where necessary for safety of personnel, grab rails must be 
provided. Each electric range must be provided with sea rails with 
suitable barriers to resist accidental movement of cooking pots.



Sec. 169.686  Shore power.

    If a shore power connection is provided it must meet the following 
requirements:
    (a) A shore power connection box or receptacle and a cable 
connecting this box or receptacle to the main distribution panel must be 
permanently installed in an accessible location.
    (b) The shore power cable must be provided with a disconnect means 
located on or near the main distribution panel.

[[Page 73]]

     Electrical Installations on Vessels of 100 Gross Tons and Over



Sec. 169.687  General.

    Except as provided in this subpart, electrical installations on 
vessels of 100 gross tons and over must meet the requirements of parts 
110-113 of this chapter.



Sec. 169.688  Power supply.

    (a) The requirements of this section apply in lieu of subpart 111.10 
of this chapter.
    (b) If a generator is used to provide electric power for any vital 
system listed in Sec. 169.642 of this subchapter, at least two 
generating sets must be provided. At least one required generating set 
must be independent of the auxiliary propulsion machinery. A generator 
that is not independent of the auxiliary propulsion plant must meet the 
requirements of Sec. 111.10-4(c) of this chapter. With any one 
generating set stopped, the remaining set(s) must provide the power 
necessary for each of the following:
    (1) Normal at sea load plus starting of the largest vital system 
load that can be started automatically or started from a space remote 
from the main distribution panel (switchboard).
    (2) All vital systems simultaneously with nonvital loads secured.
    (c) The adequacy of ship service generators must be demonstrated to 
the satisfaction of the OCMI during the initial inspection required by 
Sec. 169.221 of this subchapter.



Sec. 169.689  Demand loads.

    Demand loads must meet Sec. 111.60-7 of this chapter except that 
smaller demand loads for motor feeders are acceptable if the cable is 
protected at or below its current-carrying capacity.



Sec. 169.690  Lighting branch circuits.

    Each lighting branch circuit must meet the requirements of 
Sec. 111.75-5 of this chapter, except that--
    (a) Appliance loads, electric heater loads, and isolated small motor 
loads may be connected to a lighting distribution panelboard; and
    (b) Branch circuits in excess of 30 amperes may be supplied from a 
lighting distribution panelboard.



Sec. 169.691  Navigation lights.

    Navigation light systems must meet the requirements of Sec. 111.75-
17 of this chapter except the requirements of Sec. 111.75-17 (a) and 
(c).



Sec. 169.692  Remote stop stations.

    In lieu of the remote stopping systems required by subpart 111.103 
of this chapter, remote stop stations must be provided as follows:
    (a) A propulsion shutdown in the pilothouse for each propulsion 
unit,
    (b) A bilge slop or dirty oil discharge shutdown at the deck 
discharge,
    (c) A ventilation shutdown located outside the space ventilated, and
    (d) A shutdown from outside the engineroom for the fuel transfer 
pump, fuel oil service pump, or any other fuel oil pump.



Sec. 169.693  Engine order telegraph systems.

    An engine order telegraph system is not required.



  Subpart 169.700--Vessel Control, Miscellaneous Systems, and Equipment



Sec. 169.703  Cooking and heating.

    (a) Cooking and heating equipment must be suitable for marine use. 
Cooking installations must meet the requirements of ABYC Standard A-3, 
``Recommended Practices and Standards Covering Galley Stoves.''
    (b) The use of gasoline for cooking, heating or lighting is 
prohibited on all vessels.
    (c) The use of liquefied petroleum gas (LPG) or compressed natural 
gas (CNG) is authorized for cooking purposes only.
    (1) The design, installation and testing of each LPG system must 
meet either ABYC A-1 or Chapter 6 of NFPA 302.
    (2) The design, installation, and testing of each CNG system must 
meet either Chapter 6 of NFPA 302 or ABYC A-22.
    (3) The stowage of each cylinder must comply with the requirements 
for the stowage of cylinders of liquefied or non-liquefied gases used 
for heating,

[[Page 74]]

cooking, or lighting in part 147 of this chapter.
    (4) If the fuel supply line enters an enclosed space on the vessel, 
a remote shutoff valve must be installed which can be operated from a 
position adjacent to the appliance. The valve must be a type that will 
fail closed, and it must be located between the regulator and the point 
where the fuel supply enters the enclosed portion of the vessel.
    (5) If Chapter 6 of NFPA 302 is used as the standard, then the 
following additional requirements must also be met:
    (i) LPG or CNG must be odorized in accordance with ABYC A-1.5.d or 
A-22.5.b, respectively.
    (ii) Ovens must be equipped with a flame failure switch in 
accordance with ABYC A-1.10.b for LPG or A-22.10.b for CNG.
    (iii) The marking and mounting of LPG cylinders must be in 
accordance with ABYC-1.6.b.
    (iv) LPG cylinders must be of the vapor withdrawal type as specified 
in ABYC A-1.5.b.
    (6) If ABYC A-1 or A-22 is used as the standard for an LPG on CNG 
installation, then pilot lights or glow plugs are prohibited.
    (7) If ABYC A-22 is used as the standard for a CNG installation, 
then the following additional requirements must also be met:
    (i) The CNG cylinders, regulating equipment, and safety equipment 
must meet the installation, stowage, and testing requirements of 
paragraphs 6-5.11.1, 2, 3; 6-5.11.5; and 6-5.11.8 of NFPA 302.
    (ii) The use or stowage of stoves with attached cylinders is 
prohibited as specified in paragraph 6-5.1 of NFPA 302.



Sec. 169.705  Mooring equipment.

    Each vessel must be fitted with ground tackle and hawsers deemed 
necessary by the Officer in Charge, Marine Inspection, depending upon 
the size of the vessel and the waters on which it operates.



Sec. 169.709  Compass.

    (a) Each vessel must be fitted with a magnetic steering compass.
    (b) Each vessel certificated for exposed water service must have an 
emergency compass in addition to the one required in paragraph (a).



Sec. 169.711  Emergency lighting.

    (a) Each vessel must be equipped with a suitable number of portable 
battery lights.
    (b) Each vessel of 100 gross tons and over must satisfy the 
emergency lighting requirements for a miscellaneous self-propelled 
vessel as contained in part 112 of this chapter.
    (c) Each vessel of less than 100 gross tons that has accommodation 
spaces located below the main deck must have permanently installed 
lighting which is connected to a single emergency power source or 
permanently installed, relay-controlled, battery-operated lanterns. The 
lighting or lanterns must be fitted along the avenues of escape, in the 
wheelhouse, and in the engine compartment.
    (1) A single emergency power source, if provided, must be 
independent of the normal power source and must be either a generator or 
a storage battery.
    (d) The emergency power source and batteries for individual, 
battery-operated, lanterns must have the capacity to supply all 
connected loads simultaneously for at least 6 hours of continuous 
operations. If the emergency lighting is provided by battery power, then 
an automatic battery charger that maintains the battery(s) in a fully 
charged condition must be provided.
    (e) The emergency lighting system must be capable of being fully 
activated from a single location.



Sec. 169.713  Engineroom communication system.

    An efficient communication system must be provided between the 
principal steering station and the engineroom on vessels which are not 
equipped with pilothouse controls if, in the opinion of the Officer in 
Charge, Marine Inspection, this is necessary for proper operation of the 
vessel.



Sec. 169.715  Radio.

    (a) Radiotelegraph and radiotelephone installations are required on 
certain vessels. Details of these requirements and the details of the 
installations are contained in regulations

[[Page 75]]

of the Federal Communications Commission (FCC) in Title 47, Code of 
Federal Regulations, part 83.
    (b) A valid certificate issued by the FCC is evidence that the radio 
installation is in compliance with the requirements of that agency.



Sec. 169.717  Fireman's outfit.

    (a) Each vessel greater than 120 feet but less than 150 feet in 
length must carry one fireman's outfit consisting of--
    (1) One pressure-demand, open-circuit, self-contained breathing 
apparatus, approved by the Mine Safety and Health Administration (MSHA) 
and by the National Institute for Occupational Safety and Health (NIOSH) 
and having at a minimum a 30-minute air supply and a full facepiece; but 
a self-contained compressed-air breathing apparatus previously approved 
by MSHA and NIOSH under part 160, subpart 160.011, of this chapter may 
continue in use as required equipment if it was part of the vessel's 
equipment on November 23, 1992, and as long as it is maintained in good 
condition to the satisfaction of the Officer in Charge, Marine 
Inspection;
    (2) One lifeline with a belt or a suitable harness;
    (3) One approved flame safety lamp;
    (4) One flashlight listed by an independent testing laboratory as 
suitable for use in hazardous locations;
    (5) One fire ax;
    (6) Boots and gloves of rubber or other electrically nonconducting 
material;
    (7) A rigid helmet that provides effective protection against 
impact; and
    (8) Protective clothing.
    (b) Each vessel 150 feet or greater must carry two fireman's 
outfits. The outfits must be stowed in widely separated accessible 
locations.
    (c) Lifelines must be of steel or bronze wire rope. Steel wire rope 
must be either inherently corrosion resistant or made so by galvanizing 
or thinning. Each end must be fitted with a hook with keeper having a 
throat opening which can be readily slipped over a \5/8\-inch bolt. The 
total length of the lifeline is dependent upon the size and arrangement 
of the vessel, and more than one line may be hooked together to achieve 
the necessary length. No individual length of lifeline may be less than 
50 feet in length. The assembled lifeline must have a minimum breaking 
strength of 1,500 pounds.
    (d) A complete recharge must be carried out for each self-contained 
breathing apparatus and a complete set of spare batteries and bulb must 
be carried for each flashlight. The spares must be stowed in the same 
location as the equipment it is to reactivate.
    (e) Protective clothing must be constructed of material that will 
protect the skin from the heat of fire and burns from scalding steam. 
The outer surface must be water resistant.

[CGD 83-005, 51 FR 896, Jan. 9, 1986, as amended by CGD 86-036, 57 FR 
48326, Oct. 23, 1992]



Sec. 169.721  Storm sails and halyards (exposed and partially protected waters only).

    (a) Unless clearly unsuitable, each vessel must have one storm 
trysail of appropriate size. It must be sheeted independently of the 
boom and must have neither headboard nor battens.
    (b) Each vessel having headsails must also have one storm head sail 
of appropriate size and strength.
    (c) Each vessel must have at least two halyards, each capable of 
hoisting a sail.



Sec. 169.723  Safety belts.

    Each vessel must carry a harness type safety belt conforming to 
Offshore Racing Council (ORC) standards for each person on watch or 
required to work the vessel in heavy weather.



169.725  First aid kit.

    Each vessel must carry an approved first aid kit, constructed and 
fitted in accordance with subpart 160.041 of this chapter.



Sec. 169.726  Radar reflector.

    Each nonmetallic vessel less than 90 feet in length must exhibit a 
radar reflector of suitable size and design while underway.

                                Markings



Sec. 169.730  General alarm bell switch.

    On vessels of 100 gross tons and over there must be a general alarm 
bell

[[Page 76]]

switch in the pilothouse, clearly and permanently identified by 
lettering on a metal plate or with a sign in red letters on a suitable 
background: ``GENERAL ALARM''



Sec. 169.731  General alarm bells.

    On vessels of 100 gross tons and over each general alarm bell must 
be identified by red lettering at least \1/2\ inch high: ``GENERAL 
ALARM--WHEN BELL RINGS GO TO YOUR STATION.''



Sec. 169.732  Carbon dioxide alarm.

    Each carbon dioxide alarm must be conspicuously identified: ``WHEN 
ALARM SOUNDS--VACATE AT ONCE. CARBON DIOXIDE BEING RELEASED.''



Sec. 169.733  Fire extinguishing branch lines.

    Each branch line valve of every fire extinguishing system must be 
plainly and permanently marked indicating the spaces served.



Sec. 169.734  Fire extinguishing system controls.

    Each control cabinet or space containing valves or manifolds for the 
various fire extinguishing systems must be distinctly marked in 
conspicuous red letters at least 2 inches high: ``CARBON DIOXIDE FIRE 
EXTINGUISHING SYSTEM,'' or ``HALON FIRE EXTINGUISHING SYSTEM,'' as 
appropriate.



Sec. 169.735  Fire hose stations.

    Each fire hydrant must be identified in red letters and figures at 
least two inches high ``FIRE STATION NO. 1,'' ``2,'' ``3,'' etc. Where 
the hose is not stowed in the open or readily seen behind glass, this 
identification must be placed so as to be readily seen from a distance.



Sec. 169.736  Self-contained breathing apparatus.

    Each locker or space containing self-contained breathing apparatus 
must be marked ``SELF-CONTAINED BREATHING APPARATUS.''



Sec. 169.737  Hand portable fire extinguishers.

    Each hand portable fire extinguisher must be marked with a number, 
and the location where it is stowed must be marked with a corresponding 
number. The marks must be at least \1/2\ inch high. Where only one type 
and size of hand portable fire extinguisher is carried, the numbering 
may be omitted.



Sec. 169.738  Emergency lights.

    Each emergency light must be marked with a letter ``E'' at least \1/
2\ inch high.



Sec. 169.739  Lifeboats.

    (a) The name and port of the vessel marked on its stern as required 
by Sec. 67.15 of this chapter must be plainly marked or painted on each 
side of the bow of each lifeboat in letters not less than 3 inches high.
    (b) Each lifeboat must have its number plainly marked or painted on 
each side of the bow in figures not less than 3 inches high. The 
lifeboats on each side of the vessel must be numbered from forward aft, 
with the odd numbers on the starboard side.
    (c) The cubical contents and number of persons allowed to be carried 
in each lifeboat must be plainly marked or painted on each side of the 
bow of the lifeboat in letters and numbers not less than 1\1/2\ inches 
high. In addition, the number of persons allowed must be plainly marked 
or painted on top of at least 2 thwarts in letters and numbers not less 
than 3 inches high.
    (d) Each oar must be conspicuously marked with the vessel's name.
    (e) Where mechanical disengaging apparatus is used, the control 
effecting the release of the lifeboat must be painted bright red and 
must have thereon in raised letters either the words--``DANGER-LEVER 
DROPS BOAT'', or the words--``DANGER-LEVER RELEASES HOOKS''.
    (f) The top of thwarts, side benches and footings of lifeboats must 
be painted or otherwise colored international orange. The area in way of 
the red mechanical disengaging gear control lever, from the keel to the 
side bench, must be painted or otherwise colored white, to provide a 
contrasting background for the lever. This band of

[[Page 77]]

white should be approximately 12 inches wide depending on the internal 
arrangements of the lifeboat.



Sec. 169.740  Liferafts and lifefloats.

    (a) Rigid type liferafts and lifefloats, together with their oars 
and paddles, must be conspicuously marked with the vessel's name and 
port of the vessel as marked on its stern as required by Sec. 67.15 of 
this chapter.
    (b) The number of persons allowed on each rigid type liferaft and 
lifefloat must be conspicuously marked or painted thereon in letters and 
numbers at least 1\1/2\ inches high.
    (c) There must be stenciled in a conspicuous place in the immediate 
vicinity of each inflatable liferaft the following:

                      INFLATABLE LIFERAFT NO------

                        --------PERSONS CAPACITY

    These markings must not be placed on the inflatable liferaft 
containers.



Sec. 169.741  Personal flotation devices and ring life buoys.

    Each personal flotation device and ring life buoy must be marked 
with the vessel's name.



Sec. 169.743  Portable magazine chests.

    Portable magazine chests must be marked in letters at least 3 inches 
high: ``PORTABLE MAGAZINE CHEST--FLAMMABLE--KEEP LIGHTS AND FIRE AWAY.''



Sec. 169.744  Emergency position indicating radio beacon (EPIRB).

    Each EPIRB must be marked with the vessel's name.



Sec. 169.745  Escape hatches and emergency exits.

    Each escape hatch and other emergency exit must be marked on both 
sides using at least 1-inch letters: ``EMERGENCY EXIT, KEEP CLEAR'', 
unless the markings are deemed unnecessary by the Officer in Charge, 
Marine Inspection.



Sec. 169.746  Fuel shutoff valves.

    Each remote fuel shutoff station must be marked in at least 1-inch 
letters indicating purpose of the valves and direction of operation.



Sec. 169.747  Watertight doors and hatches.

    Each watertight door and watertight hatch must be marked on both 
sides in at least 1-inch letters: ``WATERTIGHT DOOR--CLOSE IN 
EMERGENCY'' or ``WATERTIGHT HATCH--CLOSE IN EMERGENCY'', unless the 
markings are deemed unnecessary by the Officer in Charge, Marine 
Inspection.



Sec. 169.750  Radio call sign.

    Each vessel certificated for exposed or partially protected water 
service must have its radio call sign permanently displayed or readily 
available for display upon its deck or cabin top in letters at least 18 
inches high.



Sec. 169.755  Draft marks and draft indicating systems.

    (a) All vessels must have draft marks plainly and legibly visible 
upon the stem and upon the sternpost or rudderpost or at any place at 
the stern of the vessel as may be necessary for easy observance. The 
bottom of each mark must indicate the draft.
    (b) The draft must be taken from the bottom of the keel to the 
surface of the water at the location of the marks.
    (c) In cases where the keel does not extend forward or aft to the 
location of the draft marks, due to a raked stem or cut away skeg, the 
draft must be measured from a line projected from the bottom of the keel 
forward or aft, as the case may be, to the location of the draft marks.
    (d) In cases where a vessel may have a skeg or other appendage 
extending locally below the line of the keel, the draft at the end of 
the vessel adjacent to such appendage must be measured to a line tangent 
to the lowest part of such appendage and parallel to the line of the 
bottom of the keel.
    (e) Draft marks must be separated so that the projections of the 
marks onto a vertical plane are of uniform height equal to the vertical 
spacing between consecutive marks.
    (f) Draft marks must be painted in contrasting color to the hull.
    (g) In cases where draft marks are obscured due to operational 
constraints

[[Page 78]]

or by protrusions, the vessel must be fitted with a reliable draft 
indicating system from which the bow and stern drafts can be determined.

[CGD 89-037, 57 FR 41824, Sept. 11, 1992]



                       Subpart 169.800--Operations



Sec. 169.805  Exhibition of licenses.

    Licensed personnel on any vessel subject to this subchapter shall 
have their licenses in their possession and available for examination at 
all times when the vessel is being operated.



Sec. 169.807  Notice of casualty.

    (a) The owner, agent, master, or person in charge of a vessel 
involved in a marine casualty shall give notice as soon as possible to 
the nearest Coast Guard Marine Safety or Marine Inspection Office, 
whenever the casualty involves any of the following:
    (1) Each accidental grounding and each intentional grounding which 
also meets any of the other reporting criteria or creates a hazard to 
navigation, the environment or the safety of the vessel;
    (2) Loss of main propulsion or primary steering or any associated 
component or control system which causes a reduction of the maneuvering 
capabilities of the vessel. Loss means that systems, components, sub-
system or control systems do not perform the specified or required 
function;
    (3) An occurrence materially and adversely affecting the vessel's 
seaworthiness or fitness for service or route, including but not limited 
to fire, flooding, or failure or damage to fixed fire extinguishing 
systems, lifesaving equipment, auxiliary power generating equipment, 
Coast Guard approved equipment or bilge pumping systems;
    (4) Loss of life;
    (5) Injury causing a person to remain incapacitated for a period in 
excess of 72 hours; or
    (6) An occurrence resulting in damage to property in excess of 
$25,000.00. Damage includes the cost necessary to restore the property 
to the service condition which existed prior to the casualty but does 
not include the cost of salvage, gas freeing, drydocking, or demurrage.
    (b) The notice must include the name and official number of the 
vessel involved, the name of the vessel's owner or agent, nature, 
location and circumstances of the casualty, nature and extent of injury 
to persons, and the damage to property.
    (c) In addition to the notice required, the person in charge of the 
vessel shall report in writing or in person, as soon as possible to the 
Officer in Charge, Marine Inspection at the port in which the casualty 
occurred or nearest the port of first arrival. Casualties must be 
reported on Form CG-2692.
    (d) The owner, agent, master, or other person in charge of any 
vessel involved in a marine casualty shall retain for three years the 
voyage records of the vessel such as both rough and smooth deck and 
engineroom logs, navigation charts, navigation work books, compass 
deviation cards, gyrocompass records, record of draft, aids to mariners, 
radiograms sent and received, the radio log, and crew, sailing school 
student, instructor, and guest lists. The owner agent, master, or other 
officer in charge, shall make these records available to a duly 
authorized Coast Guard officer or employee for examination upon request.
    (e) Whenever a vessel collides or is connected with a collision with 
a buoy or other aid to navigation under the jurisdiction of the Coast 
Guard, the person in charge of the vessel shall report the accident to 
the nearest Officer in Charge, Marine Inspection. A report on Form CG-
2692 is not required unless any of the results listed in paragraph (b) 
of this section occur.



Sec. 169.809  Charts and nautical publications.

    As appropriate for the intended voyage, all vessels must carry 
adequate and up-to-date--
    (a) Charts;
    (b) Sailing directions;
    (c) Coast pilots;
    (d) Light lists;
    (e) Notices to mariners;
    (f) Tide tables; and
    (g) Current tables.



Sec. 169.813  Station bills.

    (a) A station bill (muster list) shall be prepared and signed by the 
master

[[Page 79]]

of the vessel. The master shall ensure that the bill is posted in 
conspicuous locations throughout the vessel, particularly in the living 
spaces, before the vessel sails.
    (b) The station bill must set forth the special duties and duty 
station of each member of the ship's company for the various 
emergencies. The duties must, as far as possible, be comparable with the 
regular work of the individual. The duties must include at least the 
following and any other duties necessary for the proper handling of a 
particular emergency:
    (1) The closing of airports, watertight doors, scuppers, sanitary 
and other discharges which lead through the vessel's hull below the 
margin line, etc., the stopping of fans and ventilating systems, and the 
operating of all safety equipment.
    (2) The preparing and launching of lifeboats and liferafts.
    (3) The extinguishing of fire.
    (4) The mustering of guests, if carried, including the following:
    (i) Warning the guests.
    (ii) Seeing that they are dressed and have put on their personal 
flotation devices in a proper manner.
    (iii) Assembling the guests and directing them to the appointed 
stations.
    (iv) Keeping order in the passageways and stairways and generally 
controlling the movement of the guests.
    (v) Seeing that a supply of blankets is taken to the lifeboats.



Sec. 169.815  Emergency signals.

    (a) The station bill must set forth the various signals used for 
calling the ship's company to their stations and for giving instructions 
while at their stations.
    (b) On vessels of 100 gross tons and over the following signals must 
be used.
    (1) The first alarm signal must be a continuous blast of the 
vessel's whistle for a period of not less than 10 seconds supplemented 
by the continuous ringing of the general alarm bells for not less than 
10 seconds.
    (2) For dismissal from fire alarm stations, the general alarm must 
be sounded three times supplemented by three short blasts of the 
vessel's whistle.
    (3) The signal for boat stations or boat drill must be a succession 
of more than six short blasts, followed by one long blast, of the 
vessel's whistle supplemented by a comparable signal on the general 
alarm bells.
    (4) For dismissal from boat stations, there must be three short 
blasts of the whistle.
    (c) Where whistle signals are used for handling the lifeboats, they 
must be as follows:
    (1) To lower lifeboats, one short blast.
    (2) To stop lowering the lifeboats, two short blasts.



Sec. 169.817  Master to instruct ship's company.

    The master shall conduct drills and give instructions as necessary 
to insure that all hands are familiar with their duties as specified in 
the station bill.



Sec. 169.819  Manning of lifeboats and liferafts.

    (a) The provisions of this section shall apply to all vessels 
equipped with lifeboats and/or liferafts.
    (b) The master shall place a licensed deck officer, an able seaman, 
or a certificated lifeboatman in command of each lifeboat or liferaft. 
Each lifeboat or liferaft with a prescribed complement of 25 or more 
persons must have one additional certificated lifeboatman.
    (c) The person in charge of each lifeboat or liferaft shall have a 
list of its assigned occupants, and shall see that the persons under his 
orders are acquainted with their duties.



Sec. 169.821  Patrol person.

    (a) The master shall designate a member of the ship's company to be 
a roving patrol person, whenever the vessel is operational.
    (b) The roving patrol person shall frequently visit all areas to 
ensure that safe conditions are being maintained.



Sec. 169.823  Openings.

    (a) Except as provided in paragraph (b) of this section, all 
watertight doors in subdivision bulkheads, hatches, and openings in the 
hull must be kept closed during the navigation of the vessel.

[[Page 80]]

    (b) The master may permit hatches or other openings to be uncovered 
or opened for reasonable purposes such as ship's maintenance, when 
existing conditions warrant the action and the openings can readily be 
closed.



Sec. 169.824  Compliance with provisions of certificate of inspection.

    The master or person in charge of the vessel shall see that all of 
the provisions of the certificate of inspection are strictly adhered to. 
Nothing in this subpart shall be construed as limiting the master or 
person in charge of the vessel, on his own responsibility, from 
diverting from the route prescribed in the certificate of inspection or 
taking such other steps as he deems necessary and prudent to assist 
vessels in distress or for other similar emergencies.



Sec. 169.825  Wearing of safety belts.

    The master of each vessel shall ensure that each person wears an 
approved safety harness when aloft or working topside in heavy weather.

                     Tests, Drills, and Inspections



Sec. 169.826  Steering, communications and control.

    The master shall test the vessel's steering gear, signaling whistle, 
engine controls, and communications equipment prior to getting underway.



Sec. 169.827  Hatches and other openings.

    The master is responsible for seeing that all hatches, openings in 
the hull, and watertight doors are properly closed tight.



Sec. 169.829  Emergency lighting and power systems.

    (a) Where fitted, the master shall have the emergency lighting and 
power systems operated and inspected at least once in each week that the 
vessel is navigated to ensure that the system is in proper operating 
condition.
    (b) The master shall have the internal combustion engine driven 
emergency generators operated under load for at least 2 hours at least 
once in each month that the vessel is navigated.
    (c) The master shall have the storage batteries for emergency 
lighting and power systems tested at least once in each 6-month period 
that the vessel is navigated to demonstrate the ability of the storage 
battery to supply the emergency loads for the specified period of time.
    (d) The date of each test and the condition and performance of the 
apparatus must be noted in the official logbook.



Sec. 169.831  Emergency position indicating radio beacon (EPIRB).

    The master shall ensure that--
    (a) The EPIRB required in Sec. 169.555 of this subchapter is tested 
monthly, using the integrated test circuit and output indicator, to 
determine that it is operative; and
    (b) The EPIRB's battery is replaced after the EPIRB is used and 
before the marked expiration date.



Sec. 169.833  Fire and boat drills.

    (a) When the vessel is operating, the master shall conduct a fire 
and boat drill each week. The scheduling of drills is at the discretion 
of the master except that at least one fire and boat drill must be held 
within 24 hours of leaving a port if more than 25 percent of the ship's 
company have been replaced at that port.
    (b) The fire and boat drill must be conducted as if an actual 
emergency existed. All persons on board including guests shall report to 
their respective stations and be prepared to perform the duties 
specified in the station bill.
    (1) Fire pumps must be started and a sufficient number of outlets 
used to ascertain that the system is in proper working order.
    (2) All rescue and safety equipment must be brought from the 
emergency equipment lockers and the persons designated must demonstrate 
their ability to use the equipment.
    (3) All watertight doors which are in use while the vessel is 
underway must be operated.
    (4) Weather permitting, lifeboat covers and strongbacks must be 
removed, plugs or caps put in place, boat ladders secured in position, 
painters led forward and tended, and other life saving equipment 
prepared for use. The motor

[[Page 81]]

and hand-propelling gear of each lifeboat, where fitted, must be 
operated for at least 5 minutes.
    (5) In port, every lifeboat must be swung out, if practicable. The 
unobstructed lifeboats must be lowered to the water and the ship's 
company must be exercised in the use of the oars or other means of 
propulsion. Although all lifeboats may not be used in a particular 
drill, care must be taken that all lifeboats are given occasional use to 
ascertain that all lowering equipment is in proper order and the crew 
properly trained. The master shall ensure that each lifeboat is lowered 
to the water at least once every 3 months.
    (6) When the vessel in underway, and weather permitting, all 
lifeboats must be swung out to ascertain that the gear is in proper 
order.
    (7) The person in charge of each lifeboat and liferaft shall have a 
list of its crew and shall ensure that the persons under his or her 
command are acquainted with their duties.
    (8) Lifeboat equipment must be examined at least once a month to 
ensure that it is complete.
    (9) The master shall ensure that all persons on board fully 
participate in these drills and that they have been instructed in the 
proper method of donning and adjusting the personal flotation devices 
and exposure suits used and informed of the stowage location of these 
devices.
    (c) The master shall have an entry made in the vessel's official 
logbook relative to each fire and boat drill setting forth the date and 
hour, length of time of the drill, numbers on the lifeboats swung out 
and numbers on those lowered, the length of time that motor and hand-
propelled lifeboats are operated, the number of lengths of hose used, 
together with a statement as to the condition of all fire and lifesaving 
equipment, watertight door mechanisms, valves, etc. An entry must also 
be made to report the monthly examination of the lifeboat equipment. If 
in any week the required fire and boat drills are not held or only 
partial drills are held, an entry must be made stating the circumstances 
and extend of the drills held.
    (d) A copy of these requirements must be framed under glass or other 
transparent material and posted in a conspicuous place about the vessel.



Sec. 169.837  Lifeboats, liferafts, and lifefloats.

    (a) The master or person in charge shall ensure that the lifeboats, 
rescue boats, liferafts, and lifefloats, are properly maintained at all 
times, and that all equipment for the vessel required by the regulations 
in this subchapter is provided, maintained, and replaced as indicated or 
when necessary and no less frequently than required by paragraph (b) of 
this section.
    (b) The master shall ensure that:
    (1) Each lifeboat has been stripped, cleaned and thoroughly 
overhauled at least once in each year.
    (2) The fuel tanks of motor propelled lifeboats have been emptied 
and fuel changed once every twelve months.
    (3) Each lifefloat has been cleaned and thorughly overhauled once 
every twelve months.
    (4) Each inflatable liferaft has been serviced at a facility 
specifically approved by the Commandant for the particular brand, and in 
accordance with servicing procedures meeting the requirements of part 
160, part 160.151, of this chapter--
    (i) No later than the month and year on its servicing sticker 
affixed under 46 CFR 160.151-57(n), except that servicing may be delayed 
until the next scheduled inspection of the vessel, provided that the 
delay does not exceed 5 months; and
    (ii) Whenever the container is damaged or the container straps or 
seals are broken.

[CGD 83-005, 51 FR 896, Jan. 9, 1986, as amended by USCG-2001-11118, 67 
FR 58541, Sept. 17, 2002]



Sec. 169.839  Firefighting equipment.

    (a) The master or person in charge shall ensure that the vessel's 
firefighting equipment is at all times ready for use and that all 
firefighting equipment required by the regulations in this subchapter is 
provided, maintained, and replaced as indicated.
    (b) The master or person in charge shall have performed at least 
once

[[Page 82]]

every 12 months the tests and inspections of all hand portable fire 
extinguishers, semiportable fire extinguishing systems, and fixed fire 
extinguishing systems on board as described in Sec. 169.247 of this 
subchapter. The master or person in charge shall keep records of the 
tests and inspections showing the dates when performed, the number and/
or other identification of each unit tested and inspected, and the 
name(s) of the person(s) and/or company conducting the tests and 
inspections. These records must be made available to the marine 
inspectors upon request and must be kept for the period of validity of 
the vessel's current certificate of inspection. Conducting these tests 
and inspections does not relieve the master or person in charge of his 
responsibility to maintain this firefighting equipment in proper 
condition at all times.



Sec. 169.840  Verification of vessel compliance with applicable stability requirements.

    (a) After loading and prior to departure and at all other times 
necessary to assure the safety of the vessel, the master shall determine 
that the vessel complies with all applicable stability requirements in 
the vessel's trim and stability book, stability letter, Certificate of 
Inspection, and Load Line Certificate, as the case may be, and then 
enter an attestation statement of the verification in the log book. The 
vessel may not depart until it is in compliance with these requirements.
    (b) When determining compliance with applicable stability 
requirements the vessel's draft, trim, and stability must be determined 
as necessary and any stability calculations made in support of the 
determination must be retained on board the vessel for the duration of 
the voyage.

[CGD 89-037, 57 FR 41825, Sept. 11, 1992]



Sec. 169.841  Logbook entries.

    (a) Each vessel subject to the inspection provisions of this 
subchapter must have an official logbook.
    (b) The master shall place all entries required by law or regulation 
in the logbook.
    (c) A Coast Guard form ``Official Logbook'' may be utilized or the 
owner may utilize his own format for an official logbook. The logs must 
be kept available for review by the Coast Guard for a period of one year 
after the date to which the records refer or for the period of validity 
of the vessel's current certificate of inspection, whichever is longer.
    (d) All tests, drills, inspections and notifications required in 
this subchapter must be entered in the official logbook.
    (e) Prior to getting underway the master shall enter in the logbook 
the name of each sailing school student, sailing school instructor, and 
guest onboard, and the fact that each person was notified of the 
applicable safety standards for sailing school vessels as required by 
Sec. 169.857 of this chapter.



Sec. 169.847  Lookouts.

    Nothing in this part exonerates any master or officer of the watch 
from the consequences of any neglect to keep a proper lookout.



Sec. 169.849  Posting placards containing instructions for launching and inflating inflatable liferafts.

    Every vessel equipped with inflatable liferafts must have posted in 
conspicuous places readily accessible to the ship's company and guests 
approved placards containing instructions for launching and inflating 
inflatable liferafts. The number and location of such placards for a 
particular vessel shall be determined by the Officer in Charge, Marine 
Inspection.



Sec. 169.853  Display of plans.

    (a) Each vessel of 100 gross tons and over must have permanently 
exhibited for the guidance of the master, general arrangement plans for 
each deck showing the fire control stations, the various sections 
enclosed by fire resisting bulkheads, the sections enclosed by fire 
retarding bulkheads, together with the particulars of the fire alarms, 
detecting systems, fire extinguishing appliances, means of access to 
different compartments, ventilation systems and the position of dampers 
and remote stops.
    (b) Plans must clearly show for each deck the boundaries of the 
watertight compartments, the openings therein

[[Page 83]]

with the means of closure and the position of any controls, and the 
arrangements for the correction of any list due to flooding.



Sec. 169.855  Pre-underway training.

    Prior to getting underway the master shall ensure that each sailing 
school student and sailing school instructor, who has not previously 
been instructed, is instructed in the handling of sails, emergency 
procedures, nautical terms, location and use of lifesaving and 
firefighting equipment, and the general layout of the vessel.



Sec. 169.857  Disclosure of safety standards.

    (a) This section applies to all sailing school vessels and all 
promotional literature or advertisements offering passage or soliciting 
sailing school students or instructors for voyages on sailing school 
vessels.
    (b) Each item of promotional literature or advertisement that offers 
passage or solicits students or instructors of voyages onboard a sailing 
school vessel must contain the following information:
    (1) The name of the vessel;
    (2) The country of registry;
    (3) A statement detailing the role and responsibility of a sailing 
school student or instructor; and
    (4) A statement that the vessel is inspected and certificated as a 
sailing school vessel and is not required to meet the same safety 
standards required of a passenger vessel on a comparable route.
    (c) Before getting underway the master shall ensure that each 
sailing school student, sailing school instructor, and guest, who has 
not previously been notified, is notified of the specialized nature of 
sailing school vessels and that the applicable safety requirements for 
these vessels are not the same as those applied to passenger vessels.

[[Page 85]]

                                  INDEX

                       SUBCHAPTER R--NAUTICAL SCHOOLS

  Editorial Note: This listing is provided for informational purposes 
only. It is compiled and kept current by the U.S. Coast Guard, 
Department of Transportation. This index is updated as of October 1, 
2002.

                                               Part, subpart, or section

                                 A

Able seamen
                                                               166.01(b)
Accessories
                                                                 169.671
Accidents, reports of
                                                               167.65-70
Accommodations
                                                 167.50, 168.15, 169.317
Accommodation spaces, portable fire extinguishers
                                                               167.45-65
Accommodation spaces, separation of machinery and fuel tank spaces 
from
                                                                 169.631
Act, Paperwork Reduction
                                                               167.01-20
Additional requirements for hybrid work vests
                                                               167.43-25
Administrative procedures
                                                                 169.111
Aids to navigation
                                                               167.65-45
Alarm bells
                                              167.40-5, 169.730, 169.731
Alterations, approval for
                                                                 169.509
Alterations, required notice of
                                                                167.30-1
Amendment, Certificate of Inspection
                                                                 169.215
American Boat and Yacht Council
                                                              169.115(c)
American Bureau of Shipping
                                                            167.15-25(a)
American Institute of Electrical Engineers
                                                          167.40-1)a)(3)
Appeal, right of
                                           167.10-50, 168.05-15, 169.113
Applicable stability requirements
                                                               167.65-42
Applicability
                                      169.103, 169.401, 169.664, 169.674
Application, work vests
                                                                167.43-1
Application for annual inspection
                                                               167.15-10
Application for inspection for new nautical school ship or a 
conversion of a vessel to a nautical school ship
                                                               167.15-15
Applicants for certificates
                                                                  166.20
Application of passenger vessel inspection laws
                                                                168.05-1
Application of passenger vessel inspection regulations
                                                                168.05-5
Application of regulations
                                                                167.01-5
Approval for repairs and alterations
                                                                 169.509
Approval of nautical school ships
                                                                  166.01
Approved
                                                    167.05-5, 169.107(a)
Approved types of work vests
                                                                167.43-5
Arrangement of nautical school ships
                                                                  167.20
Assignment of functions
                                                                168.01-5
Authority for regulations
                                                               168.01-10
Authority of marine inspectors
                                                                167.15-5
Auto pilot, use of
                                                               167.65-35
Auxiliary machinery
                                                           169.241(a)(3)

[[Page 86]]

                                 B

Ballast, liquid
                                                               167.20-35
Basis and purpose of part
                                                                167.01-1
Batteries
                                                                 169.668
Bells, general alarm
                                                                 169.731
Bell, general alarm switch
                                                                 169.730
Bilge and drainage system
                                                           169.241(a)(6)
Bilge piping
                                                      167.20-17, 169.652
Bilge pumps
                                                      167.20-17, 169.654
Bills, Station
                                                                 169.813
Blinding light
                                                                167.65-5
Boat drills
                                                                 169.833
Boat, rescue
                                                                 169.517
Boilers
                                          167.15-25, 167.25-1, 167.65-70
Branch circuits, lighting
                                                                 169.690
Branch circuits, motors
                                                                 169.684
Branch lines, fire extinguishing
                                                                 169.733
Breakers, circuit
                                                                 169.670
Breathing apparatus, emergency
                                                               167.45-60
Buoys, life
                                                                 169.741
Bureau of Customs
                                                                167.01-8

                                 C

Cable armor
                                                           169.680(c)(2)
California Maritime Academy
                                                               166.01(b)
Capacity of pipes and hoses
                                                               167.45-15
Carbon dioxide
                                                                167.45-1
Carbon dioxide alarm
                                                                 169.732
Carbon dioxide fire-extinguishing system requirements
                                                               167.45-45
Carburetors
                                                                 169.611
Carrying of excess steam
                                                               167.25-20
Casualty, notice and reporting of
                                                      167.65-65, 169.807
Certain equipment requirements
                                                                  167.40
Certificates of Inspection
                                                                  167.60
Certificate of Inspection amendment
                                                                 169.215
Charts
                                                                 169.809
Circuit breakers
                                                                 169.670
Circuit loads
                                                                 169.682
Circuits, installation of wiring for power and lighting
                                                                 169.673
Circuits, wiring for power and lighting
                                                                 169.679
Civilian nautical school
                                                                168.10-5
Coast Guard
                                          167.01-1, 167.01-15, 167.05-30
Coast Guard District Commander
                                                   167.05-15, 169.107(b)
Coastwise vessels
                                                                167.01-7
Commandant
                                                166.01(b), 167.05-107(c)
Communications
                                               169.621, 169.713, 169.826
Compartments containing diesel fuel tanks
                                                                 169.627
Compartments containing gasoline machinery or fuel tanks
                                                                 169.629
Compartments containing diesel machinery
                                                                 169.625
Compass
                                                                 169.709
Compass, gyro
                                                               167.40-45
Compass, magnetic
                                                               167.40-45
Compliance with applicable stability requirements
                                                               167.65-42
Compliance with provisions of Certificate of Inspection
                                                                 169.824
Construction
                                                     167.20-1, 168.15-10
Construction and arrangement of nautical school ships
                                                         167.20, 169.300

[[Page 87]]

Control
                                                                 169.826
Control numbers, OMB
                                                               167.01-20
Controls, fire extinguishing system
                                                                 169.734
Cooking
                                                        169.685, 169.703
Cooling, accommodation spaces
                                                               168.15-45
Couplings on fire hose
                                                               167.45-10
Crew spaces, location of
                                                                168.15-5
Customs, Bureau of
                                                             167.01-8(c)

                                 D

Deck
                                                               166.01(b)
Deck rails
                                                                 169.327
Deck students, course of study
                                                                  166.05
Deep-sea sounding apparatus
                                                               167.40-20
Definitions
                                   167.05-1, 167.15-27, 169.107, 169.231
Demand loads
                                                                 169.689
Department of Transportation Act
                                                            1678.01-5(a)
Designating sailing school vessels, procedures
                                                                 169.218
Description, Certificate of Inspection
                                                                 169.203
Description, lifeboat equipment
                                                                 169.529
Description, lifefloat equipment
                                                                 169.537
Disconnect switches and devices
                                                                 169.681
Diesel fuel systems
                                                                 169.615
Disclosure of safety standards
                                                                 169.857
Display of plans
                                                                 169.853
Distress signals, pyrotechnic
                                                                 169.553
Distribution and circuit loads
                                                                 169.682
Distribution and stowage, personal flotation devices
                                                                 169.543
Distribution panels, main
                                                                 169.678
Doors, loading
                                                               167.65-38
Double-bottom fuel oil tanks
                                                               167.15-40
Draft
                                                               167.65-40
Draft indicating systems
                                                       167.55-1, 169.755
Draft marks
                                                       167.55-1, 169.755
Drills
                                                                167.65-1
Drydock examination
                                                              169.231(a)
Drydock examination and internal structural examination intervals 
                                                      167.15-30, 169.229

                                 E

Effective date of regulations
                                                               167.01-10
Electric heating and cooking equipment
                                                                 169.685
Electrical cable
                                                              169.243(a)
Electrical, inspections
                                                                 169.243
Electrical installations
                                                                167.40-1
Electrical installations operating at potentials of less than 50 
volts on vessels of less than 100 gross tons; applicability
                                                                 169.664
Electrical installations operating at potentials of 50 volts or 
more on vessels of less than 100 gross tons; applicability
                                                                 169.674
Electrical installations on vessels of 100 gross tons and over; 
general
                                                                 169.687
Electrical systems, grounded
                                                                 169.676
Emergency breathing apparatus
                                                               167.45-60
Emergency equipment, markings
                                                                167.55-5
Emergency exits
                                                                 169.745
Emergency lighting
                                               169.711, 169.738, 169.829
Emergency Position Indicating Radio Beacon (EPIRB)
                                               169.555, 169.744, 169.831

[[Page 88]]

Emergency powerplants, fire extinguishers
                                                               167.45-75
Emergency power systems
                                                                 169.829
Emergency signals
                                                                 169.815
Emergency training, musters, and drills
                                                                167.65-1
Enforcement
                                                                167.10-1
Engine control mechanism
                                                           169.241(a)(2)
Engine order telegraph systems
                                                                 169.693
Engine starting system
                                                           169.241(a)(1)
Engineering
                                                               166.01(b)
Engineering students, course of study
                                                                  166.10
Engineroom communication system
                                                                 169.713
Equipment, accommodation
                                                               168.15-20
Equipment, fire-fighting
                                                                 169.247
Equipment installed, but not required
                                                                 169.505
Equivalents
                                                                 169.109
Escape hatches
                                                                 169.745
Escape, means of
                                                      167.20-10, 169.313
Examination and testing of pumps and fire extinguishing equipment 
                                                               167.45-20
Examination of boilers and machinery by engineers
                                                               167.65-60
Examinations, integral fuel oil tank
                                                               167.15-40
Examinations, tailshafts
                                                               167.15-50
Excursion party, permit to carry
                                                                 169.213
Exhibition of certificate of inspection
                                                               167.60-10
Exhaust systems
                                                                 169.609
Existing vessel
                                                              169.107(d)
Exposed waters
                                                              169.107(e)
Exposure suits
                                                                 169.551

                                 F

Fire axes
                                                      167.45-80, 169.569
Fire detection and alarm system
                                                              169.243(f)
Fire equipment, marking of
                                                                167.55-5
Fire extinguishers, portable
                                         167.45-60, 167.45-70, 167.45-75
Fire extinguishing equipment
                                                               167.45-20
Fire extinguishers for emergency power plants
                                                               167.45-75
Fire extinguishing branch lines
                                                                 169.733
Fire extinguishing system controls
                                                                 169.734
Fire extinguishing systems
                                                     167.45-1, 167.45-45
Fire-fighting equipment
                                             167.45-30, 169.247, 169.839
Fire-fighting equipment on nautical school ships using oil as fuel
                                                               167.45-40
Fire hose
                                                                 169.563
Fire hose stations
                                                                 169.735
Fire mains
                                                      167.45-25, 169.561
Fire protection
                                                                 169.311
Fire pumps
                                                                 169.559
Fireman's outfit
                                                                 169.717
First aid kit
                                                                 169.725
Fixed carbon dioxide system
                                                                 169.565
Fixed extinguishing system, general
                                                                 169.564
Flame safety lamps
                                                               167.45-60
Flashing the rays of a searchlight or other blinding light
                                                                167.65-5
Foam smothering system requirements
                                                               167.45-50
Form CG-948, Permit to Proceed
                                                              169.211(a)
Fresh water operation
                                                         167.15-30(a)(2)
Fuel oil tank, double-bottom
                                                               167.15-40
Fuel oil tank examinations, integral-T/ALL
                                                      167.15-40, 169.234
Fuel shutoff valves
                                                                 169.746

[[Page 89]]

Fuel systems
                                                           169.241(a)(4)
Functions, assignment of
                                                                168.01-5
Furniture and furnishings
                                                                 169.323

                                 G

General alarm bell switch
                                                                 169.730
General alarm bells
                                                                 169.731
General provisions
                                                                 169.100
General requirements, portable fire extinguishers
                                                               167.45-70
Generators, etc.
                                                              169.243(d)
Generators and motors
                                                        169.666, 169.675
Great Lakes Maritime Academy
                                                               166.01(b)
Great Lakes routes
                                                                167.01-7
Grid cooler installations
                                                                 169.608
Gross tonnage criterion
                                                                167.01-8
Grounded electrical systems
                                                                 169.676
Guards
                                                               167.40-30
Guards in hazardous locations
                                                                 169.331
Guest
                                                              169.107(f)
Gyrocompass
                                                               167.40-45

                                 H

Halon fire extinguishing systems
                                                                167.45-1
Halyards
                                                                 169.721
Hand portable fire extinguishers
                                                                 169.737
Hatches
                                                        169.747, 169.827
Hazardous locations
                                                                 169.662
Headquarters
                                                              169.107(g)
Heating equipment, electric
                                                                 169.685
Heating, accommodation spaces
                                                               168.15-45
Hoses, capacity of
                                                               167.45-15
Hose connections
                                                               167.45-25
Hospital accommodations
                                                     167.50-1, 168.15-35
Hull examination
                                                      167.15-27, 169.231
Hulls
                                                      167.15-25, 169.239
Hybrid work vests, additional requirements
                                                               167.43-25

                                 I

Incorporation by reference
                                                                 169.115
Inert gas systems
                                                             167.45-1(c)
Initial inspection for certification
                                                                 169.221
Inland routes
                                                                167.01-7
Inspection, accommodation spaces
                                                               168.15-60
Inspection application, annual
                                                               167.15-10
Inspection, Certificates of, Issuance by Officer-in-Charge, Marine 
Inspection
                                                                167.60-1
Inspection for Certification, scope of
                                                                 169.222
Inspection for Certification, subsequent
                                                                 169.223
Inspection, required
                                                                167.15-1
Inspection, sanitary
                                                                 169.255
Inspection standards
                                                                 169.237
Inspections, boilers, pressure vessels, piping, and appurtenances 
                                                                167.25-5
Inspections, lifesaving appliances and arrangements
                                                               167.15-28
Inspections, limitations of
                                                                 169.259
Inspections, nautical school ships
                                                     167.01-8, 167.15-20
Inspectors, marine, authority for
                                                                167.15-5

[[Page 90]]

Installations, electrical
                                                                167.40-1
Installation of wiring for power and lighting circuits
                                                        169.673, 169.680
Instructions, routing
                                                               167.65-15
Instructor
                                                              169.107(h)
Integral fuel oil tank examinations - T/ALL
                                                      167.15-40, 169.234
International Convention for Safety of Life at Sea, 1974
                                                             167.01-5(c)
Intent, accommodation spaces
                                                                168.15-1
Internal structural examination
                                                              169.231(b)
Internal structural examination intervals
                                                               167.15-30

                                 K

Keel cooler installations
                                                                 169.607
Knife switches
                                                              169.680(p)

                                 L

Lakes, Great
                                                                167.01-7
Lamp, signaling
                                                               167.40-25
Lamp sizes
                                                           169.682(a)(1)
Lamps, flame safety
                                                               167.45-60
Length
                                                              169.107(i)
Lifeboats
                                               169.739, 169.819, 169.837
Lifeboat drills
                                                                  166.15
Lifeboatman
                                                               166.01(d)
Lifefloats
                                                        169.740, 169.837
Liferafts
                                               169.740, 169.819, 169.837
Lifesaving and fire fighting equipment
                                                                 169.500
Lifesaving equipment
                                                                 169.245
Lifesaving signals
                                                               167.65-50
Lighting, accommodation spaces
                                                               168.15-40
Limitations of inspections
                                                                 169.259
Liquid ballast
                                                               167.20-35
Loading doors
                                                               167.65-38
Loadline certificate
                                                            167.15-35(c)
Loadlines
                                                                 169.121
Location of crew spaces
                                                                168.15-5
Logbook entries
                                                                 169.841
Lookouts
                                                                 169.847

                                 M

Machinery
                                167.15-25, 167.65-60, 167.65-70, 169.241
Magnetic compass
                                                               167.40-45
Main distribution panels and switchboards
                                                                 169.678
Maine Maritime Academy
                                                               166.01(b)
Manning and persons allowed to be carried
                                                               167.60-15
Manning of lifeboats and liferafts
                                                                 169.819
Marine engineering
                                                       166.01(b), 167.25
Marine Inspection, Officer in Charge
                                                               167.05-30
Marine inspector or inspector
                                                   167.05-20, 169.107(j)
Marine inspector, authority of
                                                                167.15-5
Mariners
                                                               167.65-45
Markings
                                                                 169.545
Marking of fire and emergency equipment
                                                                167.55-5
Massachusetts Maritime Academy
                                                               166.01(b)
Master
                                                              169.107(k)
Master to instruct ship's company
                                                                 169.817
Means of escape
                                                               167.20-10

[[Page 91]]

Merchant mariner's document
                                                               166.01(a)
Mine Safety and Health Administration (MSHA)
                                                            167.45-60(a)
Miscellaneous systems and equipment
                                                                 169.253
Mooring equipment
                                                                 169.705
Musters
                                                                167.65-1

                                 N

Name plates
                                                                 169.665
National Fire Protection Association (NFPA)
                                                            167.30-10(a)
National Institute for Occupational Safety and Health (NIOSH) 
                                                            167.45-60(a)
Nautical publications
                                                                 169.809
Nautical school
                                          166.01(a), 167.05-35, 168.10-5
Nautical school ship
                                          167.15-15, 167.15-20, 168.10-1
Navigation
                                                               166.01(b)
Navigation lights
                                                                 169.691
Navy
                                                               167.01-15
New vessel
                                                              169.107(l)
New York State Maritime Academy
                                                               166.01(b)
Notice and plans required
                                                      167.15-35, 169.233
Notice and reporting of casualties
                                                               167.65-65
Notice of casualty
                                                                 169.807
Notice to mariners
                                                               167.65-42
Notice of repairs or alterations required
                                                                167.30-1
Number required, personal flotation devices
                                                                 169.541
Number required, primary lifesaving equipment
                                                                 169.515

                                 O

Ocean vessels
                                                                167.01-7
Officer in Charge, Marine Inspection
                                                   167.05-30, 169.107(m)
Oil Pollution Act
                                                               167.20-35
OMB control numbers
                                                      167.01-20, 169.117
Openings
                                                                 169.823
Operating requirements, special
                                                               167.30-10
Overcurrent protection for motors and motor branch circuits
                                                                 169.684
Overcurrent protection, general
                                                                 169.683
Overload or circuit protective devices
                                                              169.243(b)

                                 P

Paperwork Reduction Act
                                                               167.01-20
Partially protected waters
                                                              169.107(n)
Passenger
                                                              169.107(o)
Passenger vessel inspection laws
                                                                168.05-1
Passenger vessel inspection regulations
                                                                168.01-5
Patrol person
                                                                 169.821
Period of validity, Certificate of Inspection
                                                                 169.207
Periodic inspection
                                                                 169.226
Permission required for repairs and alterations
                                                                 169.235
Permit to carry excursion party
                                                                 169.213
Permit to proceed for repair
                                                                 169.211
Personal flotation devices and ring life buoys
                                                                 169.741
Pilot, auto
                                                               167.65-35
Piping
                                                                167.25-1
Piping, bilge
                                                               167.20-17
Pipes, capacity of
                                                               167.45-15
Placards, lifesaving signals, posting
                                                               167.65-50
Plans for sister vessel
                                                                 169.307

[[Page 92]]

Plans, required
                                                      167.15-35, 169.305
Plug fuses
                                                              169.683(e)
Portable fire extinguishers
                                                    167.45-65, 167.45-70
Portable magazine chests
                                                                 169.743
Posting, Certificate of Inspection
                                                                 169.217
Posting, lifesaving signals placard
                                                               167.65-50
Posting placards containing instructions for launching and 
inflating inflatable liferafts
                                                                 169.849
Power-driven steering systems
                                                                 169.623
Powerplants, fire extinguishers for
                                                               167.45-75
Pressure vessels
                                                       167.25-1, 169.249
Pre-underway training
                                                                 169.855
Primary lifesaving equipment, types
                                                                 169.513
Procedures for designating sailing school vessels
                                                                 169.218
Proceeding to another Port for repairs
                                                                167.30-5
Protected waters
                                                              169.107(p)
Public nautical school
                                                               167.05-35
Publications required
                                                   167.65-45(d), 169.809
Pumps, bilge
                                                               167.20-17
Pumps, fire
                                            167.45-5, 167.45-20, 169.559
Purpose of regulations
                                                       168.01-1, 169.101
Pyrotechnic distress signals
                                                                 169.553

                                 Q

Qualified Member of the Engine Department
                                                           166.01(a),(b)
Qualified organization
                                                              169.107(q)

                                 R

Radar
                                                               167.40-40
Radar reflector
                                                                 169.726
Radio
                                                                 169.715
Radio call sign
                                                                 169.750
Radiotelephone equipment
                                                                 169.669
Rails
                                                               167.40-30
Receptacle outlets
                                                              169.680(r)
Recognized classification society
                                                              169.107(r)
Regulations, application of
                                                                167.01-5
Regulations, authority for
                                                               168.01-10
Regulations, effective date of
                                                               167.01-10
Regulations, purpose of
                                                                168.01-1
Reliability, steering systems
                                                                 169.619
Remote stop stations
                                                                 169.692
Renewal of letter of designation
                                                                 169.219
Repairs, approval for
                                                                 169.509
Repairs, required notice of
                                                     167.30-1, 167.65-70
Reporting of casualties
                                                               167-65-65
Reports of accidents, repairs, and unsafe boilers and machinery by 
engineers
                                                               167.65-70
Required equipment for lifeboats
                                                                 169.527
Required equipment for lifefloats
                                                                 169.535
Required equipment for liferafts
                                                                 169.531
Required inspections
                                                                167.15-1
Required notice and plans for inspections
                                                               167.15-35
Rescue boat
                                                                 169.517
Responsibility of master
                                                                 169.507
Right of appeal
                                           167.10-50, 168.05-15, 169.113
Ring lifebuoys
                                                                 169.549

[[Page 93]]

Rotating machinery
                                                              169.243(c)
Routes
                                                                167.01-7
Routes permitted
                                                                 169.209
Routing instructions
                                                               167.65-15
Rudder angle indicators
                                                                 169.622
Rules of the Road
                                                              169.107(s)

                                 S

Safety belts, wearing of
                                                        169.723, 169.825
Sailing instruction
                                                              169.107(t)
Sailing school student
                                                              169.107(u)
Sailing school vessel
                                                              169.107(v)
Salt water operation
                                                         167.15-30(a)(1)
Sanitary, discharges
                                                               167.20-15
Sanitary inspection
                                                                 169.255
Sea valves and bulkhead closure valves
                                                           169.241(a)(5)
Seamanship
                                                               166.01(b)
Searchlight
                                                                167.65-5
Separation of machinery and fuel tank spaces from accommodation 
spaces
                                                                 169.631
School ships
                               166.01(c), 167.01-8, 167.05-25, 167.15-15
Screening, accommodation spaces
                                                               168.15-55
Scope of inspection for certification
                                                                 169.222
Scope, reinspection
                                                                 169.227
Scupper, discharges
                                                               167.20-15
Self-contained breathing apparatus
                                                                 169.736
Shipboard inspections
                                                               167.43-20
Shipboard stowage
                                                               167.43-15
Ship sanitation
                                                                  166.15
Ship's company
                                                              169.107(w)
Shore power
                                                                 169.686
Signals, lifesaving
                                                               167.65-50
Sister vessels, plans for
                                                                 169.307
Size, accommodation spaces
                                                               168.15-15
Smothering, foam system
                                                               167.45-50
Sounding apparatus, deep-sea
                                                               167.40-20
Sounding arrangements
                                                               167.20-17
Special consideration
                                                                 169.112
Special operating requirements
                                                               167.30-10
Specifications for articles or materials
                                                               167.01-15
Standard for the Control of Gas Hazards on Vessels to be Repaired 
                                                            167.30-10(a)
Stability
                                 167.20-7, 167.65-42, 168.05-10, 169.840
Station bills
                                                                 169.813
Steam, carrying excess
                                                               167.25-20
Steam fire-fighting systems
                                                                167.45-1
Steam fire pumps
                                                                167.45-5
Steering
                                                                 169.826
Steering apparatus
                                                                 169.251
Steering gear tests
                                                               167.65-25
Storage batteries
                                                              169.243(e)
Storm sails
                                                                 169.721
Stowage, personal flotation devices
                                                                 169.543
Stowage, primary lifesaving equipment
                                                                 169.521
Structural standards
                                                                 169.309
Subdivision
                                                     167.20-7, 168.05-10
Subsequent inspections for certification
                                                                 169.223
Switchboards
                                                                 169.667

[[Page 94]]

                                 T

Tailshafts, examination of
                                                               167.15-50
Tank, integral fuel oil
                                                               167.15-40
Telegraph systems
                                                                167.40-7
Telephone systems
                                                                167.40-7
Terms, definitions of
                                                                167.05-1
Texas Maritime Academy
                                                               166.01(b)
Toilet rooms, accommodation spaces
                                                      168.15-30, 169.319
Tonnage, gross criterion
                                                                167.01-8
Training
                                                         166.15, 169.855
Tubes, voice
                                                                167.40-7

                                 U

Underwriters' Laboratories
                                                             167.45-5(g)
United States Coast Guard Academy
                                                               166.01(b)
United States Maritime Administration
                                                             167.01-5(b)
United States Merchant Marine Academy
                                                               166.01(b)
United States Naval Academy
                                                               166.01(b)
Unlimited coastwise vessels
                                                                167.01-7
Unnecessary whistling
                                                               167.65-20
Unsafe boilers
                                                               167.65-70
Unsafe practices
                                                                 169.257
Use of auto pilot
                                                               167.65-35
Use, work vests
                                                               167.43-10
U.S. Coast Guard Standard Construction Specification
                               167.15-25(c), 167.20-1(b), 167.25-1(a)(2)
U.S. Naval Oceanographic Office
                                                            167.65-45(c)
U.S. Navy Standard Construction Specification
                               167.15-25(b), 167.20-1(c), 167.25-1(a)(3)

                                 V

Ventilation, accommodation spaces
                                                               168.15-50
Ventilation, other than machinery spaces
                                                                 169.315
Verification of vessel compliance with applicable stability 
requirements
                                                      167.65-42, 169.840
Vessel status
                                                                 169.119
Vital systems, piping
                                                                 169.642
Voice tubes
                                                                167.40-7
Voyage records
                                                               167.65-65

                                 W

Washrooms
                                                      168.15-25, 169.319
Waterlights
                                                                 169.549
Watertight
                                                              169.107(x)
Watertight doors and hatches
                                                                 169.747
Wearing of safety belts
                                                                 169.825
Weathertight
                                                              169.107(y)
Whistling, unnecessary
                                                               167.65-20
Wiring for power and lighting circuits
                                                        169.672, 169.679
Wooden hull vessels
                                                            167.15-30(b)
Work vests, application
                                                       167.43-1, 169.556
Work vests, approved types
                                                                167.43-5
Work vests, use
                                                               167.43-10

[[Page 95]]



                 SUBCHAPTER S--SUBDIVISION AND STABILITY





PART 170--STABILITY REQUIREMENTS FOR ALL INSPECTED VESSELS--Table of Contents




                      Subpart A--General Provisions

Sec.
170.001  Applicability.
170.003  Right of appeal.
170.005  Vessel alteration or repair.
170.010  Equivalents.
170.015  Incorporation by reference.
170.020  OMB control numbers assigned pursuant to the Paperwork 
          Reduction Act.

                         Subpart B--Definitions

170.050  General terms.
170.055  Definitions concerning a vessel.

                        Subpart C--Plan Approval

170.070  Applicability.
170.075  Plans.
170.080  Stability booklet.
170.085  Information required before a stability test.
170.090  Calculations.
170.093  Specific approvals.
170.095  Data submittal for a vessel equipped to lift.
170.100  Addresses for submittal of plans and calculations.

        Subpart D--Stability Instructions for Operating Personnel

170.105  Applicability.
170.110  Stability booklet.
170.120  Stability letter.
170.125  Operating information for a vessel engaged in lifting.
170.135  Operating information for a vessel with Type III subdivision.

                       Subpart E--Weather Criteria

170.160  Specific applicability.
170.170  Calculations required.
170.173  Criterion for vessels of unusual proportion and form.

  Subpart F--Determination of Lightweight Displacement and Centers of 
                                 Gravity

170.174  Specific applicability.
170.175  Stability test: General.
170.180  Plans and information required at the stability test.
170.185  Stability test preparations.
170.190  Stability test procedure modifications.
170.200  Estimated lightweight vertical center of gravity.

                    Subpart G--Special Installations

170.235  Fixed ballast.
170.245  Form flotation material.

                  Subpart H--Watertight Bulkhead Doors

170.248  Applicability.
170.250  Types and classes.
170.255  Class 1 doors; permissible locations.
170.260  Class 2 doors; permissible locations.
170.265  Class 3 doors; required locations.
170.270  Door design, operation, installation, and testing.
170.275  Special requirements for cargo space watertight doors.

                         Subpart I--Free Surface

170.285  Free surface correction for intact stability calculations.
170.290  Free surface correction for damage stability calculations.
170.295  Special considerations for free surface of passive roll 
          stabilization tanks.
170.300  Special consideration for free surface of spoil in hopper 
          dredge hoppers.

    Authority: 43 U.S.C. 1333; 46 U.S.C. 2103, 3306, 3703; E.O. 12234, 
45 FR 58801, 3 CFR, 1980 Comp., p. 277; 49 CFR 1.46.

    Source: CGD 79-023, 48 FR 51010, Nov. 4, 1983, unless otherwise 
noted.



                      Subpart A--General Provisions



Sec. 170.001  Applicability.

    (a) This subchapter, except where specifically stated otherwise, 
applies to each vessel contracted for on or after March 11, 1996, that 
is--
    (1) Inspected under another subchapter of this chapter; or
    (2) A foreign vessel that must comply with the requirements in 
Subchapter 0 of this chapter.
    (b) Each vessel contracted for before March 11, 1996 may be 
constructed in accordance with the regulations in effect at the time. 
However, any alterations or repairs must be done in accordance with 
Sec. 170.005.

[[Page 96]]

    (c) Certain regulations in this subchapter apply only to limited 
categories of vessels. Specific applicability statements are provided at 
the beginning of those regulations.

[CGD 79-023, 48 FR 51010, Nov. 4, 1983, as amended by CGD 89-037, 57 FR 
41825, Sept. 11, 1992; CGD 85-080, 61 FR 943, Jan. 10, 1996]



Sec. 170.003  Right of appeal.

    Any person directly affected by a decision or action taken under 
this subchapter, by or on behalf of the Coast Guard, may appeal 
therefrom in accordance with subpart 1.03 of this chapter.

[CGD 88-033, 54 FR 50382, Dec. 6, 1989]



Sec. 170.005  Vessel alteration or repair.

    (a) Alterations and repairs to inspected vessels must be done--
    (1) Under the direction of the Officer in Charge, Marine Inspection; 
and
    (2) Except as provided in paragraph (b) of this section, in 
accordance with the regulations in this subchapter, to the extent 
practicable.
    (b) Minor alterations and repairs may be done in accordance with 
regulations in effect at the time the vessel was contracted for.



Sec. 170.010  Equivalents.

    Substitutions for fittings, equipment, arrangements, calculations, 
information, or tests required in this subchapter may be approved by the 
Commandant, the Commanding Officer, U.S. Coast Guard Marine Safety 
Center, 400 Seventh St., SW., Washington, DC 20590-0001 or the Officer 
in Charge, Marine Inspection, if the substitution provides an equivalent 
level of safety.

[CGD 89-025, 54 FR 19572, May 8, 1989, as amended by CGD 96-041, 61 FR 
50734, Sept. 27, 1996]



Sec. 170.015  Incorporation by reference.

    (a) Certain material is incorporated by reference into this part 
with the approval of the Director of the Federal Register in accordance 
with 5 U.S.C. 552(a). To enforce any edition other than that specified 
in paragraph (b) of this section, the Coast Guard must publish notice of 
change in the Federal Register and make the material available to the 
public. All approved material is on file at the Office of the Federal 
Register, 800 North Capitol Street, NW., Suite 700, Washington, DC, and 
at the U.S. Coast Guard, Office of Design and Engineering Standards (G-
MSE), 2100 Second Street SW., Washington, DC 20593-0001 and is available 
from the sources indicated in paragraph (b) of this section.
    (b) The material approved for incorporation by reference in this 
part and the sections affected are:

            American Society for Testing and Materials (ASTM)

100 Barr Harbor Drive, West Conshohocken, PA 19428-2959.

ASTM F 1196-94, Standard Specification for Sliding Watertight Door 
Assemblies--170.270
ASTM F 1197-89 (1994), Standard Specification for Sliding Watertight 
Door Control Systems--170.270

                         Military Specification

Naval Publications and Forms Center, Code 1052, 5801 Tabor Avenue, 
          Philadelphia, PA 19120
MIL-P-21929B, Plastic Material, Cellular Polyurethane, Foam in Place, 
Rigid, 1970......................................................170.245

                International Maritime Organization (IMO)

Publications Section, International Maritime Organization, 4 Albert 
          Embankment, London SE1 7SR, United Kingdom
Resolution A.265 (VIII)..........................................170.135

[CGD 88-032, 56 FR 35827, July 29, 1991, as amended by CGD 95-072, 60 FR 
50468, Sept. 29, 1995; CGD 96-041, 61 FR 50734, Sept. 27, 1996; CGD 97-
057, 62 FR 51049, Sept. 30, 1997; USCG-1999-5151, 64 FR 67186, Dec. 1, 
1999]



Sec. 170.020  OMB control numbers assigned pursuant to the Paperwork Reduction Act.

    (a) Purpose. This section collects and displays the control numbers 
assigned to information collection and recordkeeping requirements in 
this subchapter by the Office of Management and Budget (OMB) pursuant to 
the Paperwork Reduction Act of 1980 (44 U.S.C. 3501 et seq.). The Coast 
Guard intends that this section comply with the requirements of 44 
U.S.C. 3507(f), which requires that agencies display a current control 
number assigned by the OMB for each approved agency information 
collection requirement.
    (b) Display.

[[Page 97]]



------------------------------------------------------------------------
                46 CFR part--                   Current OMB control No.
------------------------------------------------------------------------
Sec.  170.075................................      2115-0095, 2115-0114,
                                                    2115-0130, 2115-0131
Sec.  170.080................................      2115-0095, 2115-0114,
                                                    2115-0130, 2115-0131
Sec.  170.085................................      2115-0095, 2115-0114,
                                                    2115-0130, 2115-0131
Sec.  170.090................................      2115-0095, 2115-0114,
                                                    2115-0130, 2115-0131
Sec.  170.095................................      2115-0095, 2115-0114,
                                                    2115-0130, 2115-0131
Sec.  170.100................................      2115-0095, 2115-0114,
                                                    2115-0130, 2115-0131
Sec.  170.110................................      2115-0095, 2115-0114,
                                                    2115-0130, 2115-0131
Sec.  170.120................................      2115-0095, 2115-0114,
                                                    2115-0130, 2115-0131
Sec.  170.125................................      2115-0095, 2115-0114,
                                                    2115-0130, 2115-0131
Sec.  170.135................................      2115-0095, 2115-0114,
                                                    2115-0130, 2115-0131
Sec.  170.180................................      2115-0095, 2115-0114,
                                                    2115-0130, 2115-0131
Sec.  170.210................................                  2115-0589
------------------------------------------------------------------------


[CGD 89-037, 57 FR 41825, Sept. 11, 1992]



                         Subpart B--Definitions



Sec. 170.050  General terms.

    (a) Commanding Officer, Marine Safety Center (CO, MSC) means a 
district commander described in 33 CFR part 3 whose command includes a 
merchant marine technical office or an authorized representative of the 
district commander.
    (b) Commandant means the Commandant of the Coast Guard or an 
authorized representative of the Commandant.
    (c) Exposed waters means waters more than 20 nautical miles (37 
kilometers) from the mouth of a harbor of safe refuge and other waters 
which the Officer in Charge, Marine Inspection determines to present 
special hazards due to weather or other circumstances.
    (d) Great Lakes includes both the waters of the Great Lakes and of 
the St. Lawrence River as far east as a straight line drawn from Cap de 
Rosiers to West Point, Anticosti Island, and west of a line along the 
63rd meridian from Anticosti Island to the north shore of the St. 
Lawrence River.
    (e) Lakes, Bays, and Sounds includes the waters of any lake, bay, or 
sound, except the Great Lakes.
    (f) Oceans includes the waters of--
    (1) Any ocean;
    (2) The Gulf of Mexico;
    (3) The Caribbean Sea;
    (4) The Gulf of Alaska; and
    (5) Any other waters designated as ``oceans'' by the Commandant.
    (g) Officer in Charge Marine Inspection (OCMI) means an officer of 
the Coast Guard who commands a Marine Inspection Zone described in 33 
CFR part 3 or an authorized representative of that officer.
    (h) Oil means oil of any kind or in any form, and includes but is 
not limited to petroleum, fuel oil, sludge, oil refuse, and oil mixed 
with wastes other than dredged spoil.
    (i) Partially protected waters means--
    (1) Waters within 20 nautical miles (37 kilometers) of the mouth of 
a harbor of safe refuge, unless determined by the OCMI to be exposed 
waters; and
    (2) Those portions of rivers, harbors, lakes, etc. which the OCMI 
determines not to be sheltered.
    (j) Protected waters means sheltered waters presenting no special 
hazards such as most rivers, harbors, lakes, etc.
    (k) Rivers means any river, canal, or any other similar body of 
water designated by the OCMI.

[CGD 79-023, 48 FR 51010, Nov. 4, 1983, as amended by CGD 88-070, 53 FR 
34537, Sept. 7, 1988]



Sec. 170.055  Definitions concerning a vessel.

    (a) Auxiliary sailing vessel means a vessel capable of being 
propelled both by mechanical means and by sails.
    (b) Barge means a vessel not equipped with a means of self-
propulsion.
    (c) Beam or B means the maximum width of a vessel from--
    (1) Outside of planking to outside of planking on wooden vessels; 
and
    (2) Outside of frame to outside of frame on all other vessels.
    (d) Bulkhead deck means the uppermost deck to which watertight 
bulkheads and the watertight shell extend.
    (e) Downflooding means, except as provided in Sec. 174.035(b), the 
entry of seawater through any opening into the hull or superstructure of 
an undamaged vessel due to heel, trim, or submergence of the vessel.
    (f) Documented alterations means changes to the vessel which are 
reflected in the approved stability information carried on board the 
vessel.

[[Page 98]]

    (g) Downflooding angle means, except as specified by 
Secs. 171.055(f), 172.090(d), 173.095(e), 174.015(b), and 174.035(b)(2) 
of this chapter, the static angle from the intersection of the vessel's 
centerline and waterline in calm water to the first opening that cannot 
be closed watertight and through which downflooding can occur.
    (h) Draft means the vertical distance from the molded baseline 
amidships to the waterline.
    (i) Length means the distance between fore and aft points on a 
vessel. The following specific terms are used and correspond to specific 
fore and aft points:
    (1) Length between perpendiculars (LBP) means the horizontal 
distance measured between perpendiculars taken at the forward-most and 
after-most points on the waterline corresponding to the deepest 
operating draft. For a small passenger vessel which has underwater 
projections extending forward of the forward-most point or aft of the 
after-most point on the deepest waterline of the vessel, the Commanding 
Officer, U.S. Coast Guard Marine Safety Center, may include the length 
or a portion of the length of the underwater projections in the value 
used for the LBP for the purposes of this subchapter. The length or a 
portion of the length of projections which contribute more than 2 
percent of the underwater volume of the vessel is normally added to the 
actual LBP.
    (2) Length overall (LOA) means the horizontal distance between the 
forward-most and after-most points on the hull.
    (3) Length on the waterline (LWL) means the horizontal distance 
between the forward-most and after-most points on a vessel's waterline.
    (4) Length on deck (LOD) means the length between the forward-most 
and after-most points on a specified deck measured along the deck, 
excluding sheer.
    (5) Load line length (LLL) has the same meaning that is provided for 
the term length in Sec. 42.13-15(a) of this chapter.
    (6) Mean length is the average of the length between perpendiculars 
(LBP) and the length on deck (LOD).
    (j) Lightweight means with fixed ballast and with machinery liquids 
at operating levels but without any cargo, stores, consumable liquids, 
water ballast, or persons and their effects.
    (k) Main transverse watertight bulkhead means a transverse bulkhead 
that must be maintained watertight in order for the vessel to meet the 
damage stability and subdivision requirements in this subchapter.
    (l) Major conversion, as applied to Great Lakes bulk carriers, means 
a conversion of an existing vessel that substantially changes the 
dimensions or carrying capacity of the vessel or changes the the type of 
vessel or substantially prolongs its life or that otherwise so changes 
the vessel that it is essentially a new vessel.
    (m) Permeability is the percentage of the volume of a space that can 
be occupied by water.
    (n) Sailing vessel means a vessel propelled only by sails.
    (o) Ship means a self-propelled vessel.
    (p) Tank vessel means a vessel that is specially constructed or 
converted to carry liquid bulk cargo in tanks.
    (q) Tank barge means a tank vessel not equipped with a means of 
self-propulsion.
    (r) Tank ship means a tank vessel propelled by mechanical means or 
sails.
    (s) Vessel means any vessel and includes both ships and barges.
    (t) Weather deck means the uppermost deck exposed to the weather.
    (u) Existing sailing school vessel means a sailing vessel whose keel 
was laid prior to (January 9, 1986), which has an application for 
initial inspection for certification as a sailing school vessel on file 
with the Coast Guard prior to (January 9, 1987), and whose initial 
inspection for certification is completed prior to (January 9, 1988).
    (v) New sailing school vessel means a sailing school vessel which is 
not an existing sailing school vessel.
    (w) Small passenger vessel means a vessel of less than 100 gross 
tons--
    (1) Carrying more than 6 passengers, including at least one 
passenger for hire;
    (2) That is chartered with the crew provided or specified by the 
owner or

[[Page 99]]

owner's representative and carrying more than 6 passengers;
    (3) That is chartered with no crew provided or specified by the 
owner or owner's representative and carrying more than 12 passengers; or
    (4) That is a submersible vessel carrying at least one passenger for 
hire.

[CGD 79-023, 48 FR 51010, Nov. 4, 1983, as amended by CGD 83-005, 51 FR 
923, Jan. 9, 1986; 51 FR 3785, Jan. 30, 1986; CGD 80-159, 51 FR 33059, 
Sept. 18, 1986; 51 FR 35515, Oct. 6, 1986; CGD 89-037, 57 FR 41825, 
Sept. 11, 1992; CGD 82-004 and CGD 86-074, 60 FR 57671, Nov. 16, 1995; 
CGD 85-080, 61 FR 943, Jan. 10, 1996; CGD 82-004 and CGD 86-074, 62 FR 
49353, Sept. 19, 1997]



                        Subpart C--Plan Approval



Sec. 170.070  Applicability.

    (a) Except as provided in paragraph (b) of this section, this 
subpart applies to each vessel.
    (b) This subpart does not apply to any of the following vessels 
unless the stability of the vessel is questioned by the OCMI:
    (1) A passenger vessel that--
    (i) Is less than 100 gross tons;
    (ii) Is less than 65 feet (19.8 meters) LOD measured over the 
weather deck; and
    (iii) Carries 49 or less passengers.
    (2) A deck cargo barge that complies with the requirements in 
Sec. 174.020 of this chapter.
    (3) A tank vessel that only carries a product listed in Sec. 30.25-1 
of this chapter and that is less than 150 gross tons.
    (4) A tank barge that--
    (i) Operates only in rivers or lakes, bays, and sounds service;
    (ii) Does not have to meet 33 CFR part 157, subpart B; and
    (iii) Only carries a product listed in Sec. 30.25-1 of this chapter.
    (5) A sailing school vessel that is an open boat that complies with 
the requirements in Sec. 173.063(e) of this subchapter.

[CGD 79-023, 48 FR 51010, Nov. 4, 1983, as amended by CGD 83-005, 51 FR 
923, Jan. 9, 1986]



Sec. 170.075  Plans.

    (a) Except as provided in paragraph (b) of this section, each 
applicant for an original certificate of inspection and approval of 
plans must also submit three copies for plan review being conducted by 
the Coast Guard Marine Safety Center or four copies for plan review 
being conducted by the American Bureau of Shipping (ABS) of each of the 
following plans:
    (1) General arrangement plan of decks, holds, and inner bottoms 
including inboard and outboard profiles.
    (2) Lines.
    (3) Curves of form.
    (4) Capacity plan showing capacities and vertical, longitudinal, and 
transverse centers of gravity of stowage spaces and tanks.
    (5) Tank sounding tables showing--
    (i) Capacities, vertical centers of gravity, and longitudinal 
centers of gravity in graduated intervals; and
    (ii) Free surface data for each tank.
    (6) Draft mark locations including longitudinal location and 
vertical reference points.
    (b) Each small passenger vessel that is designed to comply with the 
alternate intact stability requirements in Sec. 178.320 of this 
subchapter and the simplified method of spacing main transverse 
watertight bulkheads in Sec. 179.220 of this subchapter does not have to 
submit the plans required by paragraph (a) of this section.

[CGD 79-023, 48 FR 51010, Nov. 4, 1983, as amended by CGD 85-080, 61 FR 
944, Jan. 10, 1996; CGD 95-028, 62 FR 51217, Sept. 30, 1997]



Sec. 170.080  Stability booklet.

    Before issuing an original certificate of inspection, the following 
number of copies of the stability booklet required by Sec. 170.110 must 
be submitted for approval; three copies for plan review being conducted 
by the Coast Guard Marine Safety Center or four copies for plan review 
being conducted by the ABS.

[CGD 95-028, 62 FR 51217, Sept. 30, 1997]



Sec. 170.085  Information required before a stability test.

    If a stability test is to be performed, a stability test procedure 
that contains the information prescribed in Sec. 170.185(g) must be 
submitted to the Coast Guard Marine Safety Center or

[[Page 100]]

the ABS at least two weeks before the test.

[CGD 95-028, 62 FR 51217, Sept. 30, 1997]



Sec. 170.090  Calculations.

    (a) Except as provided in Sec. 170.098, all calculations required by 
this subchapter must be submitted with the plans required by 
Sec. 170.075.
    (b) If it is necessary to compute and plot any of the following 
curves as part of the calculations required in this subchapter, these 
plots must also be submitted:
    (1) Righting arm or moment curves.
    (2) Heeling arm or moment curves.
    (3) Cross curves of stability.
    (4) Floodable length curves.



Sec. 170.093  Specific approvals.

    Certain rules in this subchapter require specific approval of 
equipment or arrangements by the Commandant, OCMI, or Coast Guard Marine 
Safety Center. These approval determinations will be made as a part of 
the plan review process. When plan review is conducted by the ABS, ABS 
is authorized to make the approval.

[CGD 95-028, 62 FR 51217, Sept. 30, 1997]



Sec. 170.095  Data submittal for a vessel equipped to lift.

    The following data must be submitted with the plans required by 
Sec. 170.075 if the vessel is engaged in lifting and is required to 
comply with subpart B of part 173 of this chapter:
    (a) A graph of maximum hook load versus maximum crane radius.
    (b) A table of crane radius versus the maximum distance above the 
main deck to which the hook load can be raised.
    (c) A table showing maximum vertical and transverse moments at which 
the crane is to operate.



Sec. 170.100  Addresses for submittal of plans and calculations.

    The plans, information, and calculations required by this subpart 
must be submitted to one of the following:
    (a) The Marine Safety Office in the zone where the vessel is to be 
built or altered.
    (b) Commanding Officer, U.S. Coast Guard Marine Safety Center, 400 
Seventh St., SW., Washington, DC 20590-0001.
    (c) The American Bureau of Shipping (ABS), Two World Trade Center, 
106th Floor, New York, NY 10048.
    (d) The American Bureau of Shipping (ABS), ABS Plaza, 16855 North 
Chase Dr., Houston, TX 77060-6008.

[CGD 95-028, 62 FR 51217, Sept. 30, 1997]



        Subpart D--Stability Instructions for Operating Personnel



Sec. 170.105  Applicability.

    (a) Except as provided in paragraph (b) of this section, this 
subpart applies to each vessel.
    (b) This subpart does not apply to any of the following vessels 
unless the stability of the vessel is questioned by the OCMI:
    (1) A deck cargo barge that complies with the requirements in 
Sec. 174.020 of this chapter.
    (2) A tank vessel that only carries a product listed in Sec. 30.25-1 
of this chapter and that is less than 150 gross tons.
    (3) A tank barge that--
    (i) Operates only in rivers or lakes, bays, and sounds service;
    (ii) Does not have to meet 33 CFR part 157, subpart B; and
    (iii) Only carries a product listed in Sec. 30.25-1 of this chapter.
    (4) A sailing school vessel that is an open boat that complies with 
the requirements in Sec. 173.063(e) of this subchapter.

[CGD 79-023, 48 FR 51010, Nov. 4, 1983, as amended by CGD 83-005, 51 FR 
923, Jan. 9, 1986; CGD 85-080, 61 FR 944, Jan. 10, 1996]



Sec. 170.110  Stability booklet.

    (a) Except as provided in paragraph (e) of this section, a stability 
booklet must be prepared for each vessel, except for mobile offshore 
drilling units subject to the operating manual requirements of 
Sec. 109.121 of this chapter.
    (b) Each stability booklet must be approved by the Coast Guard 
Marine Safety Center or the ABS.
    (c) Each stability book must contain sufficient information to 
enable the master to operate the vessel in compliance with applicable 
regulations in this

[[Page 101]]

subchapter. Information on loading restrictions used to determine 
compliance with applicable intact and damage stability criteria must 
encompass the entire range of operating drafts and the entire range of 
the operating trims. Information must include an effective procedure for 
supervision and reporting of the opening and closing of all loading 
doors, where applicable.
    (d) The format of the stability booklet and the information included 
will vary dependent on the vessel type and operation. Units of measure 
used in the stability booklet must agree with the units of measure of 
the draft markings. In developing the stability booklet, consideration 
must be given to including the following information:
    (1) A general description of the vessel, including lightweight data.
    (2) Instructions on the use of the booklet.
    (3) General arrangement plans showing watertight compartments, 
closures, vents, downflooding angles, and allowable deck loadings.
    (4) Hydrostatic curves or tables.
    (5) Capacity plan showing capacities and vertical, longitudinal, and 
transverse centers of gravity of stowage spaces and tanks.
    (6) Tank sounding tables showing capacities, vertical centers of 
gravity, and longitudinal centers of gravity in graduated intervals and 
showing free surface data for each tank.
    (7) Information on loading restrictions, such as a maximum KG or 
minimum GM curve that can be used to determine compliance with 
applicable intact and damage stability criteria.
    (8) Examples of loading conditions.
    (9) A rapid and simple means for evaluating other loading 
conditions.
    (10) A brief description of the stability calculations done 
including assumptions.
    (11) General precautions for preventing unintentional flooding.
    (12) A table of contents and index for the booklet.
    (13) Each ship condition which, if damage occurs, may require cross-
flooding for survival and information concerning the use of any special 
cross-flooding fittings.
    (14) The amount and location of fixed ballast.
    (15) Any other necessary guidance for the safe operation of the 
vessel under normal and emergency conditions.
    (16) For each self-propelled hopper dredge with a working freeboard, 
the maximum specific gravity allowed for dredge spoil.
    (e) A stability booklet is not required if sufficient information to 
enable the master to operate the vessel in compliance with the 
applicable regulations in this subchapter can be placed on the 
Certificate of Inspection, Load Line Certificate, or in the stability 
letter required in Sec. 170.120.
    (f) On board electronic stability computers may be used as an 
adjunct to the required booklet, but the required booklet must contain 
all necessary information to allow for the evaluation of the stability 
of any intact condition that can be evaluated by use of the computer.

[CGD 79-023, 48 FR 51010, Nov. 4, 1983, as amended by CGD 83-071, 52 FR 
6979, Mar. 6, 1987; CGD 88-070, 53 FR 34537, Sept. 7, 1988; CGD 76-080, 
54 FR 36977, Sept. 6, 1989; CGD 89-037, 57 FR 41825, Sept. 11, 1992; CGD 
95-028, 62 FR 51217, Sept. 30, 1997]



Sec. 170.120  Stability letter.

    (a) Except as provided in paragraph (b) of this section, each vessel 
must have a stability letter issued by the Coast Guard or the ABS before 
the vessel is placed into service. This letter sets forth conditions of 
operation.
    (b) A stability letter is not required if the information can be 
placed on the Certificate of Inspection or the Load Line Certificate.

[CGD 79-023, 48 FR 51010, Nov. 4, 1983, as amended by CGD 95-028, 62 FR 
51217, Sept. 30, 1997]



Sec. 170.125  Operating information for a vessel engaged in lifting.

    In addition to the information required in Sec. 170.110, the 
following information must be included in the stability booklet of a 
vessel that is required to comply with Sec. 173.005 of this subchapter:
    (a) Non-counterballasted vessel. If a vessel is not 
counterballasted, stability information setting forth hook load limits 
corresponding to boom radii based on the intact stability criterion in 
Sec. 173.020 must be provided.

[[Page 102]]

    (b) Counterballasted vessel. If a vessel is counterballasted with 
water, the following information must be provided:
    (1) Instructions on the effect of the free surface of the 
counterballast water.
    (2) Instructions on the amounts of counterballast needed to 
compensate for hook load heeling moments.
    (3) If a vessel has fixed counterballast, a table of draft versus 
maximum vertical moment of deck cargo and hook load combined.
    (4) If a vessel has variable counterballast, a table of draft versus 
maximum vertical moment of deck cargo and hook load combined for each 
counterballasted condition.



Sec. 170.135  Operating information for a vessel with Type III subdivision.

    (a) In addition to the information required in Sec. 170.110, the 
stability booklet of a passenger vessel with Type III subdivision must 
contain the information required by Regulation 8(b) of IMO Resolution 
A.265 (VIII).
    (b) International Maritime Organization Resolution A.265 (VIII) is 
incorporated by reference into this part.
    (c) As used in IMO Resolution A.265 (VIII), Administration means the 
Commandant, U. S. Coast Guard.



                       Subpart E--Weather Criteria



Sec. 170.160  Specific applicability

    (a) Except as provided in paragraphs (b) and (c) of this section, 
this subpart applies to each vessel.
    (b) This subpart does not apply to any of the following vessels 
unless the stability of the vessel is questioned by the OCMI:
    (1) A deck cargo barge that complies with the requirements in 
Sec. 174.020 of this chapter.
    (2) A tank vessel that only carries a product listed in Sec. 30.25-1 
of this chapter and that is--
    (i) Less than 150 gross tons; or
    (ii) A tank barge that operates only in river or lakes, bays, and 
sounds service.
    (3) A sailing school vessel that is an open boat that complies with 
the requirements in Sec. 173.063(e) of this subchapter.
    (c) This subpart does not apply to the following vessels:
    (1) A tank barge that carries a product listed in Table 151.01-10(b) 
of this chapter.
    (2) A mobile offshore drilling unit.
    (3) A vessel that performs the test required by Sec. 171.030(c) of 
this subchapter.

[CGD 79-023, 48 FR 51010, Nov. 4, 1983, as amended by CGD 83-005, 51 FR 
923, Jan. 9, 1986; CGD 85-080, 61 FR 944, Jan. 10, 1996]



Sec. 170.170  Calculations required.

    (a) Each vessel must be shown by design calculations to have a 
metacentric height (GM) that is equal to or greater than the following 
in each condition of loading and operation:
[GRAPHIC] [TIFF OMITTED] TC13NO91.043

Where--

P=.005+(L/14,200)2 tons/ft2 . . . for ocean 
          service, Great Lakes winter service, or service on exposed 
          waters.
P=.055+(L/1309)2 metric tons/m2 . . . for ocean 
          service, Great Lakes winter service, or service on exposed 
          waters.
P=.0033+(L/14,200)2 tons/ft2 . . . for Great Lakes 
          summer service or service on partially protected waters.
P=.036+(L/1309)2 metric tons/m2 . . . for Great 
          lakes summer service or service on partially protected waters.
P=.0025+(L/14,200)2 tons/ft2 . . . for service on 
          protected waters.
P=.028+(L/1309)2 metric tons/m2 . . . for service 
          on protected waters.
L=LBP in feet (meters).
A=projected lateral area in square feet (square meters) of the portion 
          of the vessel and deck cargo above the waterline.
H=the vertical distance in feet (meters) from the center of A to the 
          center of the underwater lateral area or approximately to the 
          one-half draft point.
W=displacement in long (metric) tons.
T=either:
    (1) the lesser of either 14 degrees heel or the angle of heel in 
degrees at which one-half the freeboard to the deck edge is immersed; or
    (2) for a sailing vessel, T = the lesser of either 14 degrees or the 
angle of heel in degrees to the deck edge.
    The deck edge is to be taken as the intersection of the sideshell 
and the uppermost continuous deck below which the sideshell is 
weathertight.

    (b) If approved by the Coast Guard Marine Safety Center or the ABS, 
a

[[Page 103]]

larger value of T may be used for a vessel with a discontinuous weather 
deck or abnormal sheer.
    (c) When doing the calculations required by paragraph (a) of this 
section for a sailing vessel or auxiliary sailing vessel, the vessel 
must be assumed--
    (1) To be under bare poles; or
    (2) If the vessel has no auxiliary propulsion, to have storm sails 
set and trimmed flat.
    (d) The criterion specified in this section is generally limited in 
application to flush deck, mechanically powered vessels of ordinary 
proportions and form that carry cargo below the main deck. On other 
types of vessels, the Coast Guard Marine Safety Center or the ABS 
requires calculations in addition to those in paragraph (a) of this 
section. On a mechanically powered vessel under 328 feet (100 meters) in 
length, other than a tugboat or a towboat, the requirements in 
Sec. 170.173 are applied.

[CGD 79-023, 48 FR 51010, Nov. 4, 1983; 49 FR 37384, Sept. 24, 1984, as 
amended by CGD 88-070, 53 FR 34537, Sept. 7, 1988; CGD 85-080, 61 FR 
944, Jan. 10, 1996; 61 FR 20556, May 7, 1996; CGD 95-028, 62 FR 51217, 
Sept. 30, 1997]



Sec. 170.173  Criterion for vessels of unusual proportion and form.

    (a) If required by the Coast Guard Marine Safety Center or the ABS, 
each mechanically powered vessel less than 328 feet (100 meters) LLL, 
other than a tugboat or towboat, must be shown by design calculations to 
comply with--
    (1) Paragraph (b) or (c) of this section if the maximum righting arm 
occurs at an angle of heel less than or equal to 30 degrees; or
    (2) Paragraph (b) of this section if the maximum righting arm occurs 
at an angle of heel greater than 30 degrees.
    (b) Each vessel must have--
    (1) An initial metacentric height (GM) of at least 0.49 feet (0.15 
meters);
    (2) A righting arm (GZ) of at least 0.66 feet (0.20 meters) at an 
angle of heel equal to or greater than 30 degrees;
    (3) A maximum righting arm that occurs at an angle of heel not less 
than 25 degrees;
    (4) An area under each righting arm curve of at least 10.3 foot-
degrees (3.15 meter-degrees) up to an angle of heel of 30 degrees;
    (5) An area under each righting arm curve of at least 16.9 foot-
degrees (5.15 meter-degrees) up to an angle of heel of 40 degrees or the 
downflooding angle, whichever is less; and
    (6) An area under each righting arm curve between the angles of 30 
degrees and 40 degrees, or between 30 degrees and the downflooding angle 
if this angle is less than 40 degrees, of not less than 5.6 foot-degrees 
(1.72 meter-degrees).
    (c) Each vessel must have--
    (1) An initial metacentric height (GM) of at least 0.49 feet (0.15 
meters);
    (2) A maximum righting arm that occurs at an angle of heel not less 
than 15 degrees;
    (3) An area under each righting arm curve of at least 16.9 foot-
degrees (5.15 meter-degrees) up to an angle of heel of 40 degrees or the 
downflooding angle, whichever is less;
    (4) An area under each righting arm curve between the angles of 30 
degrees and 40 degrees, or between 30 degrees and the downflooding angle 
if this angle is less than 40 degrees, of not less than 5.6 foot-degrees 
(1.72 meter-degrees); and
    (5) An area under each righting arm curve up to the angle of maximum 
righting arm of not less than the area determined by the following 
equation:

                    A=10.3+0.187 (30-Y) foot-degrees

                    A=3.15+0.057 (30-Y) meter-degrees

where--
A=area in foot-degrees (meter-degrees).
Y=angle of maximum righting arm, degrees.

    (d) For the purpose of demonstrating compliance with paragraphs (b) 
and (c) of this section, at each angle of heel a vessel's righting arm 
is calculated after the vessel is permitted to trim free until the 
trimming moment is zero.
    (e) For the purpose of demonstrating acceptable stability on the 
vessels described in Sec. 170.170(d) as having unusual proportion and 
form, compliance with paragraphs (a) through (d) of this section or the 
following criteria is required:

[[Page 104]]

    (1) For partially protected routes, there must be--
    (i) Positive righting arms to at least 35 degrees of heel;
    (ii) No down flooding point to at least 20 degrees; and
    (iii) At least 15 foot-degrees of energy to the smallest of the 
following angles:
    (A) Angle of maximum righting arm.
    (B) Angle of down flooding.
    (C) 40 degrees.
    (2) For protected routes, there must be--
    (i) Positive righting arms to at least 25 degrees of heel;
    (ii) No down flooding point to at least 15 degrees; and
    (iii) At least 10 foot-degrees of energy to the smallest of the 
following angles:
    (A) Angle of maximum righting arm.
    (B) Angle of down flooding.
    (C) 40 degrees.

[CGD 79-023, 48 FR 51010, Nov. 4, 1983, as amended by CGD 85-080, 61 FR 
944, Jan. 10, 1996; CGD 95-028, 62 FR 51218, Sept. 30, 1997; CGD 85-080, 
62 FR 51353, Sept. 30, 1997]



  Subpart F--Determination of Lightweight Displacement and Centers of 
                                 Gravity



Sec. 170.174  Specific applicability.

    This subpart applies to each vessel for which the lightweight 
displacement and centers of gravity must be determined in order to do 
the calculations required in this subchapter.



Sec. 170.175  Stability test: General.

    (a) Except as provided in paragraphs (c) and (d) of this section and 
in Sec. 170.200, the owner of a vessel must conduct a stability test of 
the vessel and calculate its vertical and longitudinal centers of 
gravity and its lightweight displacement.
    (b) An authorized Coast Guard or ABS representative must be present 
at each stability test conducted under this section.
    (c) The stability test may be dispensed with, or a deadweight survey 
may be substituted for the stability test, if the Coast Guard or the ABS 
has a record of, or is provided with, the approved results of a 
stability test of a sister vessel.
    (d) The stability test of a vessel may be dispensed with if the 
Coast Guard or the ABS determines that an accurate estimate of the 
vessel's lightweight characteristics can be made and that locating the 
precise position of the vessel's vertical center of gravity is not 
necessary to ensure that the vessel has adequate stability in all 
probable loading conditions.

[CGD 79-023, 48 FR 51010, Nov. 4, 1983, as amended by CGD 95-028, 62 FR 
51218, Sept. 30, 1997; USCG-1998-4442, 63 FR 52192, Sept. 30, 1998]



Sec. 170.180  Plans and information required at the stability test.

    The owner of a vessel must provide the following Coast Guard or ABS 
approved plans and information to the authorized Coast Guard or ABS 
representative at the time of the stability test:
    (a) Lines.
    (b) Curves of form.
    (c) Capacity plans showing capacities and vertical and longitudinal 
centers of gravity of stowage spaces and tanks.
    (d) Tank sounding tables.
    (e) Draft mark locations.
    (f) General arrangement plan of decks, holds, and inner bottoms.
    (g) Inboard and outboard profiles.
    (h) The stability test procedure described in Sec. 170.185(g).

[CGD 79-023, 48 FR 51010, Nov. 4, 1983, as amended by CGD 95-028, 62 FR 
51218, Sept. 30, 1997]



Sec. 170.185  Stability test preparations.

    The following preparations must be made before conducting a 
stability test:
    (a) The vessel must be as complete as practicable at the time of the 
test.
    (b) Each tank vessel must be empty and dry, except that a tank may 
be partially filled or full if the Coast Guard Marine Safety Center or 
the ABS determines that empty and dry tanks are impracticable and that 
the effect of filling or partial filling on the location of the center 
of gravity and on the displacement can be accurately determined.
    (c) All dunnage, tools, and other items extraneous to the vessel 
must be removed.
    (d) The water depth at the mooring site must provide ample clearance 
against grounding.

[[Page 105]]

    (e) Each mooring line must be arranged so that it does not interfere 
with the inclination of the unit during the test.
    (f) The draft and axis of rotation selected for testing a mobile 
offshore drilling unit must be those that result in acceptable accuracy 
in calculating the center of gravity and displacement of the unit.
    (g) The stability test procedure required by Sec. 170.085 must 
include the following:
    (1) Identification of the vessel to be tested.
    (2) Date and location of the test.
    (3) Inclining weight data.
    (4) Pendulum locations and lengths.
    (5) Approximate draft and trim of the vessel.
    (6) Condition of each tank.
    (7) Estimated items to be installed, removed, or relocated after the 
test, including the weight and location of each item.
    (8) Schedule of events.
    (9) Person or persons responsible for conducting the test.

[CGD 79-023, 48 FR 51010, Nov. 4, 1983, as amended by CGD 88-070, 53 FR 
34537, Sept. 7, 1988; CGD 95-028, 62 FR 51218, Sept. 30, 1997]



Sec. 170.190  Stability test procedure modifications.

    The authorized Coast Guard or ABS representative present at a 
stability test may allow a deviation from the requirements of 
Secs. 170.180 and 170.185 if the representative determines that the 
deviation would not decrease the accuracy of the test results.

[CGD 95-028, 62 FR 51218, Sept. 30, 1997]



Sec. 170.200  Estimated lightweight vertical center of gravity.

    (a) Each tank vessel that does not carry a material listed in either 
Table 1 of part 153 or Table 4 of part 154 of this chapter may comply 
with this section in lieu of Sec. 170.175 if it--
    (1) Is 150 gross tons or greater;
    (2) Is of ordinary proportions and form;
    (3) Has a flush weather deck, one or more longitudinal bulkheads, 
and no independent tanks; and
    (4) Is designed not to carry cargo above the freeboard deck.
    (b) When doing the calculations required by Secs. 170.170 and 
172.065, the vertical center of gravity of a tank vessel in the 
lightweight condition must be assumed to be equal to the following 
percentage of the molded depth of the vessel measured from the keel 
amidship:
    (1) For a tank ship--70%.
    (2) For a tank barge--60%.
    (c) As used in this section, molded depth has the same meaning that 
is provided for the term in Sec. 42.13-15(e) of this chapter.

[CGD 79-023, 48 FR 51010, Nov. 4, 1983, as amended by CGD 85-080, 61 FR 
944, Jan. 10, 1996]



                    Subpart G--Special Installations



Sec. 170.235  Fixed ballast.

    (a) Fixed ballast, if used, must be--
    (1) Installed under the supervision of the OCMI; and
    (2) Stowed in a manner that prevents shifting of position.
    (b) Fixed ballast may not be removed from a vessel or relocated 
unless approved by the Coast Guard Marine Safety Center or the ABS. 
However, ballast may be temporarily moved for vessel examination or 
repair if done under the supervision of the OCMI.

[CGD 79-023, 48 FR 51010, Nov. 4, 1983, as amended by CGD 88-070, 53 FR 
34537, Sept. 7, 1988; CGD 95-028, 62 FR 51218, Sept. 30, 1997]



Sec. 170.245  Foam flotation material.

    (a) Installation of foam must be approved by the OCMI.
    (b) If foam is used to comply with Sec. 171.070(d), Sec. 171.095(c), 
or Sec. 173.063(e) of this subchapter, the following applies:
    (1) Foam may be installed only in void spaces that are free of 
ignition sources.
    (2) The foam must comply with MIL-P-21929B including the 
requirements for fire resistance.
    (3) A submergence test must be conducted for a period of at least 7 
days to demonstrate whether the foam has adequate strength to withstand 
a hydrostatic head equivalent to that which would be imposed if the 
vessel were submerged to its margin line.
    (4) The effective buoyancy at the end of the submergence test must 
be used

[[Page 106]]

as the buoyancy credit; however, in no case will a credit greater than 
55 lbs per cubic foot (881 kilograms per cubic meter) be allowed.
    (5) The structure enclosing the foam must be strong enough to 
accommodate the buoyancy of the foam.
    (6) Piping and cables must not pass through foamed spaces unless 
they are within piping and cable trunks accessible from both ends.
    (7) Sample specimens must be prepared during installation and the 
density of the installed foam must be determined.
    (8) Foam may be installed adjacent to fuel tanks if the boundary 
between the tank and space has double continuous fillet welds.
    (9) MIL-P-21929B is incorporated by reference into this part.
    (10) The results of all tests and calculations must be submitted to 
the OCMI.
    (11) Blocked foam must--
    (i) Be used in each area that may be exposed to water; and
    (ii) Have a protective cover approved by the OCMI.

[CGD 79-023, 48 FR 51010, Nov. 4, 1983, as amended by CGD 83-005, 51 FR 
923, Jan. 9, 1986]



                  Subpart H--Watertight Bulkhead Doors



Sec. 170.248  Applicability.

    (a) Except as provided in paragraph (b) or paragraph (c) of this 
section, this subpart applies to vessels with watertight doors in 
bulkheads that have been made watertight to comply with the flooding or 
damage stability regulations in this subchapter
    (b) A watertight door on a MODU must comply with Sec. 174.100 of 
this subchapter.
    (c) A watertight door on a self-propelled hopper dredge with a 
working freeboard must comply with Sec. 174.335 of this subchapter.

[CGD 79-023, 48 FR 51010, Nov. 4, 1983, as amended by CGD 76-080, 54 FR 
36977, Sept. 6, 1989]



Sec. 170.250  Types and classes.

    (a) Watertight doors, except doors between cargo spaces, are classed 
as follows:
    (1) Class 1--Hinged door.
    (2) Class 2--Sliding door, operated by hand gear only.
    (3) Class 3--Sliding door, operated by power and by hand gear.
    (b) The following types of watertight doors are not permitted:
    (1) A plate door secured only by bolts; and
    (2) A door required to be closed by dropping or by the action of 
dropping weights.
    (c) Whenever a door of a particular class is prescribed by these 
regulations, a door of a class bearing a higher number may be used.



Sec. 170.255  Class 1 doors; permissible locations.

    (a) Except as provided in paragraphs (b) and (c) of this section, 
Class 1 doors within passenger, crew, and working spaces are permitted 
only above a deck, the molded line of which, at its lowest point at 
side, is at least 7 feet (2.14 meters) above the deepest load line.
    (b) Class 1 doors are permitted within passenger, crew, and working 
spaces, wherever located, if--
    (1) In the judgment of the OCMI, the door is in a location where it 
will be closed at all times except when actually in use; and
    (2) The vessel is less than 150 gross tons and will not proceed more 
than 20 nautical miles (37 kilometers) from shore; or
    (3) The vessel is in rivers or lakes, bays, and sounds service.
    (c) Class 1 doors are permitted in any location on a vessel that--
    (1) Is less than 100 gross tons; and
    (2) Will operate only in the offshore oil industry trade.
    (d) Quick-acting Class 1 doors are permitted in any location on a 
vessel that operates on the Great Lakes and is required to meet the 
damage stability standards of subpart H of part 172 of this chapter.
    (e) For vessels required to meet the damage stability standards of 
subpart H of this chapter, when Class 1 doors are installed below a deck 
the molded

[[Page 107]]

line of which at its lowest point at side is less than 7 feet (2.14 
meters) above the deepest load line, an indicator light for each door 
which warns when the door is open must be installed on the bridge.

[CGD 79-023, 48 FR 51010, Nov. 4, 1983, as amended by CGD 80-159, 51 FR 
33059, Sept. 18, 1986]



Sec. 170.260  Class 2 doors; permissible locations.

    (a) Except as provided in paragraphs (b) and (c) of this section, a 
Class 2 door is permitted only if--
    (1) Its sill is above the deepest load line; and
    (2) It is not a door described in Sec. 170.265(d).
    (b) If passenger spaces are located below the bulkhead deck, Class 2 
doors with sills below the deepest load line may be used if--
    (1) The number of watertight doors located below the deepest load 
line that are used intermittently during operation of the vessel does 
not exceed two, and;
    (2) The doors provide access to or are within spaces containing 
machinery.
    (c) If no passenger spaces are located below the bulkhead deck, 
Class 2 doors may be used if the number of watertight doors located 
below the deepest load line that are used intermittently during 
operation of the vessel does not exceed five.
    (d) In determining whether Class 2 doors are allowed under paragraph 
(c) of this section, the watertight doors at the entrance to shaft 
tunnels need not be counted. If Class 2 doors are allowed under 
paragraph (c) of this section, the doors at the entrance to shaft 
tunnels may also be Class 2.



Sec. 170.265  Class 3 doors; required locations.

    The following doors must always be Class 3:
    (a) Doors in all locations not addressed in Secs. 170.255 and 
170.260.
    (b) Doors between coal bunkers below the bulkhead deck that must be 
opened at sea.
    (c) Doors into trunkways that pass through more than one main 
transverse watertight bulkhead if the door sills are less than 2.14 
meters above the deepest load line.
    (d) Doors below a deck, the molded line of which, at its lowest 
point at side, is less than 2.14 meters (7 feet) above the deepest load 
line if--
    (1) The vessel is engaged on a short international voyage as defined 
in Sec. 171.010 of this subchapter; and
    (2) The vessel is required by Sec. 171.065 of this subchapter to 
have a factor of subdivision of 0.5 or less.

[CGD 79-023, 48 FR 51010, Nov. 4, 1983, as amended by CGD 85-080, 61 FR 
944, Jan. 10, 1996; CGD 96-041, 61 FR 50734, Sept. 27, 1996]



Sec. 170.270  Door design, operation, installation, and testing.

    (a) Each Class 1 door must have a quick action closing device 
operative from both sides of the door.
    (b) Each Class 1 door on a vessel in ocean service must be designed 
to withstand a head of water equivalent to the depth from the sill of 
the door to the margin line but in no case less than 10 feet (3.05 
meters).
    (c) Each Class 2 and Class 3 door must--
    (1) Be designed, constructed, tested, and marked in accordance with 
ASTM F 1196 (incorporated by reference, see Sec. 170.015);
    (2) Have controls in accordance with ASTM F 1197 (incorporated by 
reference, see Sec. 170.015); and
    (3) If installed in a subdivision bulkhead, meet Supplemental 
Requirements Nos. S1 and S3 of ASTM F 1196 (incorporated by reference, 
see Sec. 170.015), unless the watertight doors are built in accordance 
with plans previously approved by the Coast Guard, in which case, only 
Supplemental Requirements Nos. S1 and S3.1.4 of ASTM F 1196 
(incorporated by reference, see Sec. 170.015) must be met. In either 
case, control systems for watertight doors must have power supplies, 
power sources, installation tests and inspection, and additional remote 
operating consoles in accordance with Supplemental Requirements Nos. S1 
through S4 of ASTM F 1197 (incorporated by reference, see Sec. 170.015).
    (d) Installations of sliding watertight door assemblies must be in 
accordance with the following:

[[Page 108]]

    (1) Before a sliding watertight door assembly is installed in a 
vessel, the bulkhead in the vicinity of the door opening must be 
stiffened. Such bulkhead stiffeners, or deck reinforcement where flush 
deck door openings are desired, must not be less than 6 inches nor more 
than 12 inches from the door frame so that an unstiffened diaphragm of 
bulkhead plating 6 to 12 inches wide is provided completely around the 
door frame. Where such limits cannot be maintained, alternative 
installations will be considered by the Marine Safety Center. In 
determining the scantlings of these bulkhead stiffeners, the door frame 
should not be considered as contributing to the strength of the 
bulkhead. Provision must also be made to adequately support the thrust 
bearings and other equipment that may be mounted on the bulkhead or 
deck.
    (2) Sliding watertight door frames must be either bolted or welded 
watertight to the bulkhead.
    (i) If bolted, a suitable thin heat and fire resistant gasket or 
suitable compound must be used between the bulkhead and the frame for 
watertightness. The bulkhead plating must be worked to a plane surface 
in way of the frame when mounting.
    (ii) If welded, caution must be exercised in the welding process so 
that the door frame is not distorted.
    (e) For each watertight door which is in a required subdivision 
bulkhead, an indicator light must be installed in the pilothouse and at 
each other vessel operating station from which the door is not visible. 
The indicator must show whether the door is open or closed.

[CGD 79-023, 48 FR 51010, Nov. 4, 1983, as amended by CGD 88-032, 56 FR 
35828, July 29, 1991; CGD 85-080, 61 FR 944, Jan. 10, 1996; USCG-2000-
7790, 65 FR 58464, Sept. 29, 2000]



Sec. 170.275  Special requirements for cargo space watertight doors.

    (a) A door between cargo spaces--
    (1) Must not be designed for remote operation;
    (2) Must be located as high as practicable; and
    (3) Must be located as far inboard of the side shell as practicable 
but in no case closer to the side shell than one-fifth of the beam of 
the vessel where the beam is measured at right angles to the centerline 
of the vessel at the level of the deepest load line.
    (b) If the door is accessible while the ship is in operation, it 
must have installed a lock or other device that prevents unauthorized 
opening.
    (c) Before installing a watertight door in a cargo space, approval 
must be obtained from the Commanding Officer, Marine Safety Center.

[CGD 79-023, 48 FR 51010, Nov. 4, 1983, as amended by CGD 88-070, 53 FR 
34537, Sept. 7, 1988]



                         Subpart I--Free Surface



Sec. 170.285  Free surface correction for intact stability calculations.

    (a) When doing the intact stability calculations required by this 
subchapter, the virtual increase in the vessel's vertical center of 
gravity due to liquids in tanks must be determined by calculating--
    (1) For each type of consumable liquid, the maximum free surface 
effect of at least one transverse pair of wing tanks or a single 
centerline tank; and
    (2) The maximum free surface effect of each partially filled tank 
containing non-consumable liquids.
    (b) For the purpose of paragraph (a)(1) of this section, the tank or 
combination of tanks selected must be those having the greatest free 
surface effect.



Sec. 170.290  Free surface correction for damage stability calculations.

    (a) When doing the damage stability calculations required by this 
subchapter, the virtual increase in the vessel's vertical center of 
gravity due to liquids in tanks must be determined by calculating--
    (1) For each type of consumable liquid, the free surface effect of 
at least one transverse pair of wing tanks or a single centerline tank; 
and
    (2) The free surface effect of each partially filled tank containing 
other than consumable liquids.
    (b) For the purpose of paragraph (a)(1) of this section, the tank or 
combination of tanks selected must be those having the greatest free 
surface effect.

[[Page 109]]

    (c) When doing the calculations in paragraph (a) of this section, 
the free surface effect of a liquid in a tank must be determined by--
    (1) Assuming the vessel is heeled five degrees from the vertical; or
    (2) Calculating the shift of the center of gravity of the liquid in 
the tank by the moment of transference method.



Sec. 170.295  Special consideration for free surface of passive roll stabilization tanks.

    (a) The virtual increase in the vertical center of gravity due to a 
liquid in a roll stabilization tank may be calculated in accordance with 
paragraph (b) of this section if--
    (1) The virtual increase in the vertical center of gravity of the 
vessel is calculated in accordance with Sec. 170.285(a); and
    (2) The slack surface in the roll stabilization tank is reduced 
during vessel motions because of the shape of the tank or the amount of 
liquid in the tank.
    (b) The virtual rise in the vertical center of gravity calculated in 
accordance with Sec. 170.285(a) for a stabilization tank may be reduced 
in accordance with the following equation:

E.F.S. = (K)(F.F.S.)
where--

E.F.S. = the effective free surface.
F.F.S. = the full free surface calculated in accordance with 
          Sec. 170.285(a).
K = the reduction factor calculated in accordance with paragraph (c) of 
          this section.

    (c) The factor (K) must be calculated as follows:
    (1) Plot (I/d)tan T on Graph 170.295 where--
    (i) (I) is the moment of inertia of the free surface in the roll 
tank;
    (ii) (d) is the density of the liquid in the roll tank; and
    (iii) (T) is the angle of heel.
    (2) Plot the moments of transference of the liquid in the roll tank 
on Graph 170.295.
    (3) Construct a line A on Graph 170.295 so that the area under line 
A between T = 0 and the angle at which the deck edge is immersed or 28 
degrees, whichever is smaller, is equal to the area under the curve of 
actual moments of transference between the same angles.
    (4) The factor (K) is calculated by determining the ratio of the 
ordinate of line A to the ordinate of the curve of (I/d)tan T, both 
measured at the angle at which the deck edge is immersed or 28 degrees, 
whichever is smaller.

[[Page 110]]

[GRAPHIC] [TIFF OMITTED] TC01MR91.003


[[Page 111]]





Sec. 170.300  Special consideration for free surface of spoil in hopper dredge hoppers.

    The calculations required by this subchapter for each self-propelled 
hopper dredge must include--
    (a) The free surface effect of consumable liquids and the free 
surface effect of the dredged spoil in the hoppers; and
    (b) Either of the following assumptions when performing the 
calculations required by Sec. 174.310(b) of this chapter:
    (1) If the dredged spoil is assumed to be jettisoned, the free 
surface of the dredged spoil may be disregarded.
    (2) If the dredged spoil is not assumed to be jettisoned. the free 
surface of the dredged spoil must be calculated.

[CGD 76-080, 54 FR 36977, Sept. 6, 1989]



PART 171--SPECIAL RULES PERTAINING TO VESSELS CARRYING PASSENGERS--Table of Contents




                           Subpart A--General

Sec.
171.001  Applicability.
171.010  Definitions.
171.015  Location of margin line.
171.017  One and two compartment standards of flooding.

Subpart B [Reserved]

                        Subpart C--Large Vessels

171.045  Specific applicability.
171.050  Intact stability requirements for a mechanically propelled or a 
          nonself-propelled vessel.
171.055  Intact stability requirements for a monohull sailing vessel or 
          a monohull auxiliary sailing vessel.
171.057  Intact stability requirements for a sailing catamaran.
171.060  Watertight subdivision: General.
171.065  Subdivision requirements--Type I.
171.066  Calculation of permeability for Type I subdivision.
171.067  Treatment of stepped and recessed bulkheads in Type I 
          subdivision.
171.068  Special considerations for Type I subdivision for vessels on 
          short international voyages.
171.070  Subdivision requirements--Type II.
171.072  Calculation of permeability for Type II subdivision.
171.073  Treatment of stepped and recessed bulkheads in Type II 
          subdivision.
171.075  Subdivision requirements--Type III.
171.080  Damage stability standards for vessels with Type I or Type II 
          subdivision.
171.082  Damage stability standards for vessels with Type III 
          subdivision.

             Subpart D--Additional Subdivision Requirements

171.085  Collision bulkhead.
171.090  Aft peak bulkhead.
171.095  Machinery space bulkhead.
171.100  Shaft tunnels and stern tubes.
171.105  Double bottoms.
171.106  Wells in double bottoms.
171.108  Manholes in double bottoms.
171.109  Watertight floors in double bottoms.

      Subpart E--Penetrations and Openings in Watertight Bulkheads

171.110  Specific applicability.
171.111  Penetrations and openings in watertight bulkheads in vessels of 
          100 gross tons or more.
171.112  Watertight door openings.
171.113  Trunks.
171.114  Penetrations and openings in watertight bulkheads in a vessel 
          less than a 100 gross tons.

   Subpart F--Openings in the Side of a Vessel Below the Bulkhead or 
                              Weather Deck

171.115  Specific applicability.
171.116  Port lights.
171.117  Dead covers.
171.118  Automatic ventilators and side ports.
171.119  Openings below the weather deck in the side of a vessel less 
          than 100 gross tons.

          Subpart G--Watertight Integrity Above the Margin Line

171.120  Specific applicability.
171.122  Watertight integrity above the margin line in a vessel of 100 
          gross tons or more.
171.124  Watertight integrity above the margin line in a vessel less 
          than 100 gross tons.

                  Subpart H--Drainage of Weather Decks

171.130  Specific applicability.
171.135  Weather deck drainage on a vessel of 100 gross tons or more.
171.140  Drainage of a flush deck vessel.
171.145  Drainage of a vessel with a cockpit.
171.150  Drainage of a vessel with a well deck.
171.155  Drainage of an open boat.

    Authority. 46 U.S.C. 2103, 3306; E.O. 12234, 45 FR 58801, 3 CFR, 
1980 Comp., p. 277; 49 CFR 1.46.

[[Page 112]]


    Source: CGD 79-023, 48 FR 51017, Nov. 4, 1983, unless otherwise 
noted.



                           Subpart A--General



Sec. 171.001  Applicability.

    (a) This part applies to passenger vessels inspected under 
subchapter K or H of this chapter.
    (b) Specific sections of this part also apply to nautical school 
ships, sailing school vessels and oceanographic vessels. The applicable 
sections are listed in subparts C and D of part 173 of this chapter.

[CGD 79-023, 48 FR 51017, Nov. 4, 1983, as amended by CGD 83-005, 51 FR 
923, Jan. 9, 1986; CGD 95-012, 60 FR 48052, Sept. 18, 1995; 60 FR 50120, 
Sept. 28, 1995; CGD 85-080, 61 FR 944, Jan. 10, 1996]



Sec. 171.010  Definitions.

    (a) Cockpit means an exposed recess in the weather deck extending no 
more than one-half of the vessel's length over deck (LOD) measured over 
the weather deck.
    (b) Deepest subdivision load line means the waterline that 
corresponds to the deepest draft permitted by the applicable subdivision 
requirements in this part.
    (c) Equivalent plane bulkhead means a bulkhead that is--
    (1) Used in lieu of a recessed or stepped bulkhead when doing the 
subdivision calculations required in this part; and
    (2) Located as shown in Figure 171.010(a).
    (d) Ferry means a vessel that--
    (1) Operates in other than ocean or coastwise service;
    (2) Has provisions only for deck passengers or vehicles, or both;
    (3) Operates on a short run on a frequent schedule between two 
points over the most direct water route;
    (4) Offers a public service of a type normally attributed to a 
bridge or tunnel.
    (e) Freeing port means any direct opening through the vessel's 
bulwark or hull to quickly drain overboard water which has been shipped 
on exposed decks.
    (f) Floodable length means the length of a shell to shell segment of 
the vessel that, when flooded, will sink and trim the vessel until the 
margin line is tangent to the waterline.
    (g) Flush deck means a continuous weather deck located at the 
uppermost sheer line of the hull.
    (h) International voyage has the same meaning provided for the term 
in Sec. 70.05-10 of this chapter.
    (i) Machinery space means, unless otherwise prescribed by the 
Commandant for unusual arrangements, the space extending from the molded 
base line to the margin line and between the main transverse watertight 
bulkheads bounding the following spaces:
    (1) Each space containing main and auxiliary propelling machinery.
    (2) Each space containing propulsion boilers.
    (3) Each space containing permanent coal bunkers.
    (j) Open boat means a vessel not protected from entry of water by 
means of a complete deck, or by a combination of a partial weather deck 
and superstructure which is seaworthy for the waters upon which the 
vessel operates.
    (k) Passenger space means a space which is provided for the 
accommodation and use of passengers, other than a baggage, store, 
provision or mail room.
    (l) Recessed bulkhead means a bulkhead that is recessed as shown by 
bulkhead B in Figure 171.010(b).
    (m) Small passenger vessel means a vessel of less than 100 gross 
tons--
    (1) Carrying more than 6 passengers, including at least one 
passenger for hire;
    (2) That is chartered with the crew provided or specified by the 
owner or owner's representative and carrying more than 6 passengers;
    (3) That is chartered with no crew provided or specified by the 
owner or owner's representative and carrying more than 12 passengers; or
    (4) That is a submersible vessel carrying at least one passenger for 
hire.
    (n) Short international voyage means an international voyage where--
    (1) A vessel is not more than 200 nautical miles (370 kilometers) 
from a port or place in which the passengers and crew could be placed in 
safety; and
    (2) The total distance between the last port of call in the country 
in

[[Page 113]]

which the voyage began and the final port of destination does not exceed 
600 nautical miles (1111 kilometers).
    (o) Scupper means a pipe or tube of at least 30 millimeters (1.25 
inches) in diameter leading down from a deck or sole and through the 
hull to drain water overboard.
    (p) Stepped bulkhead means a bulkhead that is stepped as shown by 
bulkhead A in Figure 171.010(b).
[GRAPHIC] [TIFF OMITTED] TC01MR91.004


[[Page 114]]


    (q) Well deck means a weather deck fitted with solid bulwarks that 
impede the drainage of water over the sides or an exposed recess in the 
weather deck extending one-half or more of the length of the vessel 
(LOD) measured over the weather deck.

[CGD 79-023, 48 FR 51017, Nov. 4, 1983, as amended by CGD 85-080, 61 FR 
944, Jan. 10, 1996]



Sec. 171.015  Location of margin line.

    (a) A vessel with a continuous bulkhead deck and sufficient sheer. 
If the average value of the sheer at the forward perpendicular (FP) and 
the after perpendicular (AP) is at least 12 inches (30.5 cm), the margin 
line must be located no less than 3 inches (7.6 cm) below the upper 
surface of the bulkhead deck at side as illustrated in Figure 
171.015(a).

                              Table 171.015
------------------------------------------------------------------------
                                                  Required position of
 Average value of sheer at FP and AP in inches  margin line below top of
                     (cm)                       deck amidships in inches
                                                          (cm)
------------------------------------------------------------------------
12 (30.5).....................................            3 (7.6)
6 (15.2)......................................           6 (15.2)
0.............................................           9 (22.8)
------------------------------------------------------------------------

                                                [GRAPHIC] [TIFF OMITTED] TC01MR91.005
                                                
    (b) A vessel with a continuous bulkhead deck and insufficient sheer. 
If the average value of the sheer at the forward perpendicular (FP) and 
the after perpendicular (AP) is less than 12 inches (30.5 cm), the 
margin line must be a parabolic curve with the following 
characteristics:
    (1) The parabolic curve must be at least 3 inches (7.6 cm) below the 
upper surface of the bulkhead deck at the FP and AP.
    (2) The parabolic curve must be at least the distance given in Table 
171.015 below the surface of the bulkhead deck amidships.
    (3) Intermediate values not shown in Table 171.015 must be 
interpolated.
    (4) Figure 171.015(b) illustrates a margin line drawn in this 
manner.

[[Page 115]]

[GRAPHIC] [TIFF OMITTED] TC01MR91.006

(c) A vessel with a discontinuous bulkhead deck. A continuous margin 
line must be drawn that is no more than 3 inches (7.6 cm) below the 
upper surface of the bulkhead deck at side as illustrated in Figure 
171.015(c).
[GRAPHIC] [TIFF OMITTED] TC01MR91.007

(d) A vessel with a discontinuous bulkhead deck where the side shell is 
carried watertight to a higher deck. A continuous margin line must be 
drawn as illustrated in Figure 171.015(d).

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[GRAPHIC] [TIFF OMITTED] TC01MR91.008



Sec. 171.017  One and two compartment standards of flooding.

    (a) One compartment standard of flooding. A vessel is designed to a 
one compartment standard of flooding if the margin line is not submerged 
when the total buoyancy between each set of two adjacent main transverse 
watertight bulkheads is lost.
    (b) Two compartment standard of flooding. A vessel is designed to a 
two compartment standard of flooding if the margin line is not submerged 
when the total buoyancy between each set of three adjacent main 
transverse watertight bulkheads is lost.

Subpart B [Reserved]



                        Subpart C--Large Vessels



Sec. 171.045  Specific applicability.

    This subpart applies to each vessel that fits into any one of the 
following categories:
    (a) Greater than 100 gross tons.
    (b) Greater than 65 feet (19.8 meters) in length.
    (c) Carries more than 12 passengers on an international voyage.
    (d) Carries more than 150 passengers.
    (e) The stability of which is questioned by the OCMI.



Sec. 171.050  Intact stability requirements for a mechanically propelled or a nonself-propelled vessel.

    Each vessel must be shown by design calculations to have a 
metacentric height (GM) in feet (meters) in each condition of loading 
and operation, that is not less than the value given by the following 
equation:
[GRAPHIC] [TIFF OMITTED] TC01MR91.009

where--

N=number of passengers.
W=displacement of the vessel in long (metric) tons.
T=14 degrees or the angle of heel at which the deck edge is first 
          submerged, whichever is less.
b=distance in feet (meters) from the centerline of the vessel to the 
          geometric center of the passenger deck on one side of the 
          centerline.

K=24 passengers/long ton (23.6 passengers/metric ton).



Sec. 171.055  Intact stability requirements for a monohull sailing vessel or a monohull auxiliary sailing vessel.

    (a) Except as specified in paragraph (b) of this section, each 
monohull sailing vessel and auxiliary sailing vessel must be shown by 
design calculations to meet the stability requirements in this section.

[[Page 117]]

    (b) Additional or different stability requirements may be needed for 
a vessel of unusual form, proportion, or rig. The additional 
requirements, if needed, will be prescribed by the Commandant.
    (c) Each vessel must have positive righting arms in each condition 
of loading and operation from--
    (1) 0 to at least 70 degrees of heel for service on protected or 
partially protected waters; and
    (2) 0 to at least 90 degrees of heel for service on exposed waters.
    (d) Each vessel must be designed to satisfy the following equations:
    (1) For a vessel in service on protected or partially protected 
waters--
[GRAPHIC] [TIFF OMITTED] TC01MR91.010

where--
X=1.0 long tons/sq. ft. (10.9 metric tons/sq. meter).
Y=1.1 long tons/sq. ft. (12.0 metric tons/sq. meter).
Z=1.25 long tons/sq. ft. (13.7 metric tons/sq. meter).

    (2) For a vessel on exposed waters--
    [GRAPHIC] [TIFF OMITTED] TC01MR91.011
    
where--

HZA, HZB, and HZC are calculated in the manner specified in paragraph 
          (e) or (f) of this section.
X=1.5 long tons/sq. ft. (16.4 metric tons/sq. meter).
Y=1.7 long tons/sq. ft. (18.6 metric tons/sq. meter).
Z=1.9 long tons/sq. ft. (20.8 metric tons/sq. meter).
A=the projected lateral area or silhouette in square feet (meters) of 
          the portion of the vessel above the waterline computed with 
          all sail set and trimmed flat. Sail overlap areas need not be 
          included except parachute type spinnakers which are to be 
          added regardless of overlap.
H=the vertical distance in feet (meters) from the center of A to the 
          center of the underwater lateral area or approximately to the 
          one-half draft point.
W=the displacement of the vessel in long (metric) tons.

    (e) Except as provided in paragraph (f) of this section, HZA, HZB, 
and HZC must be determined as follows for each condition of loading and 
operation:
    (1) Plot the righting arm curve on Graphs 171.055 (b), (c), and (d) 
or (e).
    (2) If the angle at which the maximum righting arm occurs is less 
than 35 degrees, the righting arm curve must be truncated as shown on 
Graph 171.055(a).
    (3) Plot an assumed heeling arm curve on Graph 171.055(b) that 
satisfies the following conditions:
    (i) The assumed heeling arm curve must be defined by the equation--

HZ=HZA cos2 (T)
where--

HZ=heeling arm.
HZA=heeling arm at 0 degrees of heel.
T=angle of heel.

    (ii) The first intercept shown on Graph 171.055(b) must occur at the 
angle of heel corresponding to the angle at which deck edge immersion 
first occurs.
    (4) Plot an assumed heeling arm curve on Graph 171.055(c) that 
satisfies the following conditions:
    (i) The assumed heeling arm curve must be defined by the equation--

HZ=HZB cos2 (T)
where--

HZ=heeling arm.
HZB=heeling arm at 0 degrees of heel.
T=angle of heel.

    (ii) The area under the assumed heeling arm curve between 0 degrees 
and

[[Page 118]]

the downflooding angle or 60 degrees, whichever is less, must be equal 
to the area under the righting arm curve between the same limiting 
angles.
    (5) Plot an assumed heeling arm curve on Graph 171.055 (d) or (e) 
that satisfies the following conditions:
    (i) The assumed heeling arm curve must be defined by--

HZ=HZC cos2 (T)
where--

HZ=heeling arm.
HZC=heeling arm at 0 degrees of heel.
T=angle of heel.

    (ii) The area under the assumed heeling arm curve between the angles 
of 0 and 90 degrees must be equal to the area under the righting arm 
curve between 0 degrees and--
    (A) 90 degrees if the righting arms are positive to an angle less 
than or equal to 90 degrees; or
    (B) The largest angle corresponding to a positive righting arm but 
no more than 120 degrees if the righting arms are positive to an angle 
greater than 90 degrees.
    (6) The values of HZA, HZB, and HZC are read directly from Graphs 
171.055 (b), (c), and (d) or (e).
    (f) For the purpose of this section, the downflooding angle means 
the static angle from the intersection of the vessel's centerline and 
waterline in calm water to the first opening that cannot be rapidly 
closed watertight.
    (g) HZB and, if the righting arms are positive to an angle of 90 
degrees or greater, HZC may be computed from the following equation:
[GRAPHIC] [TIFF OMITTED] TC01MR91.012

where--
I=the area under the righting arm curve to--
(1) the downflooding angle or 60 degrees, whichever is less, when 
          computing HZB; or
(2) the largest angle corresponding to a positive righting arm or 90 
          degrees, whichever is greater, but no greater than 120 degrees 
          when computing HZC.
T=the downflooding angle or 60 degrees, whichever is less, when 
          computing HZB or 90 degrees when computing HZC.

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[GRAPHIC] [TIFF OMITTED] TC01MR91.015


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[GRAPHIC] [TIFF OMITTED] TC01MR91.016


[[Page 123]]


[GRAPHIC] [TIFF OMITTED] TC01MR91.017

[CGD 79-023, 48 FR 51017, Nov. 4, 1983, as amended by CGD 83-005, 51, FR 
924, Jan. 9, 1986]



Sec. 171.057  Intact stability requirements for a sailing catamaran.

    (a) A sailing vessel that operates on protected waters must be 
designed to satisfy the following equation:
[GRAPHIC] [TIFF OMITTED] TR10JA96.007

Where--

B=the distance between hull centerlines in meters (feet).
As=the maximum sail area in square meters (square feet).
Hc=the height of the center of effort of the sail area above the deck, 
          in meters (feet).
W=the total displacement of the vessel, in kilograms (pounds).
X=4.88 kilograms/square meter (1.0 pounds/square foot).

    (b) A sailing vessel that operates on partially protected or exposed 
waters must be designed to satisfy the following equation:
[GRAPHIC] [TIFF OMITTED] TR10JA96.008

Where--

B=the distance between hull centerlines in meters (feet).

[[Page 124]]

As=the maximum sail area in square meters (square feet).
Hc=the height of the center of effort of the sail area above the deck, 
          in meters (feet).
W=the total displacement of the vessel, in kilograms (pounds).
X=7.32 kilograms/square meter (1.5 pounds/square foot).

[CGD 79-023, 48 FR 51017, Nov. 4, 1983, as amended by CGD 83-005, 51 FR 
924, Jan. 9, 1986; CGD 85-080, 61 FR 944, Jan. 10, 1996]



Sec. 171.060  Watertight subdivision: General.

    (a) Each of the following vessels must be shown by design 
calculations to comply with the requirements in Secs. 171.065 through 
171.068 for Type I subdivision or Sec. 171.075 for Type III subdivision:
    (1) Each vessel 100 gross tons or more on an international voyage: 
and
    (2) Each vessel 150 gross tons or more in ocean service.
    (b) Each vessel not described in paragraph (a) of this section must 
be shown by design calculations to comply with the requirements in 
Secs. 171.070 to 171.073 for Type II subdivision.
    (c) Except as allowed in Sec. 171.070(c), each vessel must have a 
collision bulkhead.
    (d) Each double-ended ferry that is required by paragraph (c) of 
this section to have a collision bulkhead must also have a second 
collision bulkhead. One collision bulkhead must be located in each end 
of the vessel.



Sec. 171.065  Subdivision requirements--     Type I.

    (a) Except as provided in paragraphs (c) and (f) of this section, 
the separation between main transverse watertight bulkheads on a vessel, 
other than one described in paragraph (b) of this section, must not 
exceed--

(floodable length) X (factor of subdivision)

where--
    the factor of subdivision is listed under FS in Table 171.065(a).

    (b) The factor of subdivision used to determine compliance with 
paragraph (a) of this section must be the smaller of 0.5 or the value 
determined from Table 171.065(a) if--
    (1) The vessel is 430 feet (131 meters) or more in LBP; and
    (2) The greater of the values of Y as determined by the following 
equations equals or exceeds the value of X in Table 171.065(b):
[GRAPHIC] [TIFF OMITTED] TC01MR91.018

or
[GRAPHIC] [TIFF OMITTED] TC01MR91.019

where--

M, V, and P have the same value as listed in Table 171.065(a); and
P1=the smaller of the following:

(i) 0.6LN (0.056LN) where--
N=the total number of passengers; and
L=LBP in feet (meters).

(ii) The greater of the following:

(A) 0.4LN (0.037LN).
(B) The sum of P and the total volume of passenger spaces above the 
          margin line.

    (c) The distance A in Figure 171.065 between main transverse 
watertight bulkheads may exceed the maximum allowed by paragraphs (a) or 
(b) of this section if each of the distances B and C between adjacent 
main transverse watertight bulkheads in Figure 171.065 does not exceed 
the smaller of the following:
    (1) The floodable length.
    (2) Twice the separation allowed by paragraphs (a) or (b) of this 
section.
    (d) In each vessel 330 feet (100 meters) or more in LBP, one of the 
main transverse watertight bulkheads aft of the collision bulkhead must 
be located at a distance from the forward perpendicular that is not 
greater than the maximum separation allowed by paragraph (a) or (b) of 
this section.
    (e) The minimum separation between two adjacent main transverse 
watertight bulkheads must be at least 10 feet (3.05 meters) plus 3 
percent of the LBP of the vessel, or 35 feet (10.7 meters), whichever is 
less.
    (f) The maximum separation of bulkheads allowed by paragraphs (a) or 
(b) of this section may be increased by the amount allowed in paragraph 
(g) of this section if--
    (1) The space between two adjacent main transverse watertight 
bulkheads contains internal watertight volume; and

[[Page 125]]

    (2) After the assumed side damage specified in paragraph (h) of this 
section is applied, the internal watertight volume will not be flooded.
    (g) For the purpose of paragraph (f) of this section, the allowable 
increase in separation is as follows:
[GRAPHIC] [TIFF OMITTED] TC01MR91.020

where--
``total volume of allowed local subdivision'' is determined by 
          calculating the unflooded volume on each side of the 
          centerline and multiplying the smaller volume by two.

    (h) The assumed extents of side damage are as follows:
    (1) The longitudinal extent of damage must be assumed to extend over 
a length equal to the minimum spacing of bulkheads specified in 
paragraph (e) of this section.
    (2) The transverse extent of damage must be assumed to penetrate a 
distance from the shell plating equal to one-fifth the maximum beam of 
the vessel and at right angles to the centerline at the level of the 
deepest subdivision load line.
    (3) The vertical extent of damage must be assumed to extend 
vertically from the baseline to the margin line.
    (i) The maximum separation between the following bulkheads must not 
exceed the maximum separation between main transverse watertight 
bulkheads:
    (1) The collision bulkhead and the first main transverse watertight 
bulkhead aft of the collision bulkhead; and
    (2) The last main transverse watertight bulkhead and the aftermost 
point on the bulkhead deck.
    (j) The minimum separation between the following bulkheads must not 
be less than the minimum separation between main transverse watertight 
bulkheads:
    (1) The collision bulkhead and the first main transverse watertight 
bulkhead aft of the collision bulkhead; and
    (2) The last main transverse watertight bulkhead and the aftermost 
point on the bulkhead deck.
[GRAPHIC] [TIFF OMITTED] TC01MR91.021


                    Table 171.065(a) (English units)
------------------------------------------------------------------------
        Vessel length (LBP)          Criterion numeral (CN)       FS
------------------------------------------------------------------------
                                     CN less than or equal   A
                                      to 23.
Vessel length greater than 392 feet  CN greater than 23 and  F1
                                      less than 123.
                                     CN greater than or      B
                                      equal to 123.
------------------------------------------------------------------------
                                     CN less than or equal   1
                                      to S.
Vessel length greater than or equal  CN greater than S and   F2
 to 200 feet and less than or equal   less than 123.
 to 392 feet.
                                     CN greater than or      B
                                      equal to 123.
------------------------------------------------------------------------
Vessel length less than 200 feet...  ......................  1
------------------------------------------------------------------------
Where--
 
FS=the factor of subdivision.
CN=60((M+2P)/V)+30000(N/L2)
A=(190/(L-160))+0.18
B=(94/(L-85))+0.18
F1=A-((A-B)(CN-23)/100)
S=(10904-25L)/48
F2=1-((1-B)(CN-S)/(123-S))
L=the length of the vessel (LBP) in feet.
M=the sum of the volume of the machinery space and the volumes of any
  fuel tanks which are located above the inner bottom forward or aft of
  the machinery space in cubic feet.
P=the volume of passenger spaces below the margin line.
V=the volume of the vessel below the margin line.
N=the number of passengers that the vessel is to be certificated to
  carry.


[[Page 126]]


                     Table 171.065(a) (Metric Units)
------------------------------------------------------------------------
        Vessel length (LBP)          Criterion numeral (CN)       FS
------------------------------------------------------------------------
                                     CN lesthan or equal to  A
                                      23.
Vessel length greater than 120       CN greater than 23 and  F1
 meters.                              less than 123.
                                     CN greater than or      B
                                      equal to 123.
------------------------------------------------------------------------
                                     CN less than or equal   1
                                      to S.
Vessel length greater than or equal  CN greater than S and   F2
 to 61 meters and less than or        less than 123.
 equal to 120 meters.
                                     CN greater than or      B
                                      equal to 123.
------------------------------------------------------------------------
Vessel length less than 61 meters..  ......................  1
------------------------------------------------------------------------
Where--
 
FS=the factor of subdivision.
CN=60((M+2P)/V)+2787(N/L\2\)
A=(58/(L-49))+0.18
B=(29/(L-26))+0.18
F1=A-((A-B)(CN-23)/100)
S=(3323.5-25L)/14.6
F2=1-((1-B)(CN-S)/(123-S))
L=the length of the vessel (LBP) in meters.
M=the sum of the volume of the machinery space and the volumes of any
  fuel tanks which are located above the inner bottom forward or aft of
  the machinery space in cubic meters.
P=the volume of passenger spaces below the margin line.
V=the volume of the vessel below the margin line.
N=the number of passengers that the vessel is to be certificated to
  carry.


                      Table 171.065(b)--Table of X
------------------------------------------------------------------------
                  Vessel LBP in feet (meters)                     X \1\
------------------------------------------------------------------------
430 (131)......................................................    1.336
440 (134)......................................................    1.285
450 (137)......................................................    1.230
460 (140)......................................................    1.174
470 (143)......................................................    1.117
480 (146)......................................................    1.060
490 (149)......................................................    1.002
500 (152)......................................................    0.944
510 (155)......................................................    0.885
520 (158)......................................................    0.826
530 (162)......................................................    0.766
540 (165)......................................................    0.706
550 (168)......................................................    0.645
554 (169) and up...............................................    0.625
------------------------------------------------------------------------
1 Interpolate for intermediate values.



Sec. 171.066  Calculation of permeability for Type I subdivision.

    (a) Except as prescribed in paragraph (b) of this section, the 
following permeabilities must be used when doing the calculations 
required to demonstrate compliance with Sec. 171.065(a), (b), and (c):
    (1) When doing calculations required to demonstrate compliance with 
Sec. 171.065(a) and (b), the uniform average permeability given by the 
formulas in Table 171.066 must be used.
    (2) When doing calculations required to demonstrate that 
compartments on opposite sides of a main transverse watertight bulkhead 
that bounds the machinery space comply with Sec. 171.065(c), the mean of 
the uniform average permeabilities determined from Table 171.066 for the 
two compartments must be used.
    (b) If an average permeability can be calculated that is less than 
that given by the formulas in Table 171.066, the lesser value may be 
substituted if approved by the Commanding Officer, Marine Safety Center. 
When determining this lesser value, the following permeabilities must be 
used:
    (1) 95% for passenger, crew, and all other spaces that, in the full 
load condition, normally contain no cargo, stores, provisions, or mail.
    (2) 60% for cargo, stores, provisions, or mail spaces.
    (3) 85% for spaces containing machinery.
    (4) Values approved by the Commanding Officer, Marine Safety Center 
for double bottoms, oil fuel, and other tanks.
    (c) In the case of unusual arrangements, the Commanding Officer, 
Marine Safety Center may require a detailed calculation of average 
permeability for the portions of the vessel forward or aft of the 
machinery spaces. When doing these calculations, the permeabilities 
specified in paragraph (b) of this section must be used.
    (d) When calculating permeability, the total volume of the `tween 
deck spaces between two adjacent main transverse watertight bulkheads 
that contains any passenger or crew space must be regarded as passenger 
space volume, except that the volume of any space that is completely 
enclosed in steel buldheads and is not a crew or passenger space may be 
excluded.

         Table 171.066--Table of Uniform Average Permeabilities
------------------------------------------------------------------------
                 Location                   Uniform average permeability
------------------------------------------------------------------------
                                                10 (a-c)
Machinery space...........................  85+----------
                                                    v
------------------------------------------------------------------------
                                                35(a)
Volume forward of machinery space.........  63+------

[[Page 127]]

 
                                                    v
------------------------------------------------------------------------
                                                35(a)
Volume aft of machinery space.............  63+------
                                                    v
------------------------------------------------------------------------
For each location specified in this table--
a=volume below the margin line of all spaces that, in the full load
  condition, normally contain no cargo, baggage, stores, provisions, or
  mail.
c=volume below the margin line of the cargo, stores, provisions, or mail
  spaces within the limits of the machinery space.
v=total volume below the margin line.


[CGD 79-023, 48 FR 51017, Nov. 4, 1983, as amended by CGD 88-070, 53 FR 
34537, Sept. 7, 1988]



Sec. 171.067  Treatment of stepped and recessed bulkheads in Type I subdivision.

    (a) For the purpose of this section--
    (1) The main transverse watertight bulkhead immediately forward of a 
stepped bulkhead is referred to as bulkhead 1; and
    (2) The main transverse watertight bulkhead immediately aft of the 
stepped bulkhead is referred to as bulkhead 3.
    (b) If a main transverse watertight bulkhead is stepped, it and 
bulkheads 1 and 3 must meet one of the following conditions:
    (1) The separation between bulkheads 1 and 3 must not exceed the 
following:
    (i) If the factor of subdivision (FS) determined from Sec. 171.065 
(a) or (b) is greater than 0.9, the distance between bulkheads 1 and 3 
must not exceed the maximum separation calculated to demonstrate 
compliance with Sec. 171.065.
    (ii) If the factor of subdivision is 0.9 or less, the distance 
between bulkheads 1 and 3 must not exceed 90% of the floodable length or 
twice the maximum bulkhead separation calculated to demonstrate 
compliance with Sec. 171.065, whichever is smaller.
    (2) Additional watertight bulkheads must be located as shown in 
Figure 171.067(a) so that distances A, B, C, and D, illustrated in 
Figure 171.067(a), satisfy the following:
    (i) Distances A and B must not exceed the maximum spacing allowed by 
Sec. 171.065.
    (ii) Distances C and D must not be less than the minimum separation 
prescribed by Sec. 171.065(e).
    (3) The distance A, illustrated in Figure 171.067(b), must not 
exceed the maximum length determined in Sec. 171.065 corresponding to a 
margin line taken 3 inches (7.6 cm) below the step.
    (c) A main transverse bulkhead may not be recessed unless all parts 
of the recess are inboard from the shell of the vessel a distance A as 
illustrated in Figure 171.067(c).
    (d) Any part of a recess that lies outside the limits defined in 
paragraph (c) of this section must be treated as a step in accordance 
with paragraph (b) of this section.
    (e) The distance between a main transverse watertight bulkhead and 
the transverse plane passing through the nearest portion of a recessed 
bulkhead must be greater than the minimum separation specified by 
Sec. 171.065(e).
    (f) If a main transverse bulkhead is stepped or recessed, equivalent 
plane bulkheads must be used in the calculations required to demonstrate 
compliance with Sec. 171.065.

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[[Page 129]]


[GRAPHIC] [TIFF OMITTED] TC01MR91.023



Sec. 171.068  Special considerations for Type I subdivision for vessels on short international voyages.

    (a) The calculations done to demonstrate compliance with 
Sec. 171.065 for a vessel that makes short international voyages and is 
permitted under Sec. 75.10-10 of this chapter to carry a number of 
persons on board in excess of the lifeboat capacity must--
    (1) Assume the uniform average permeabilities given in Table 171.068 
in lieu of those in Table 171.066; and
    (2) Use a factor of subdivision (FS) that is the smaller of the 
following:
    (i) The value from Table 171.065(a).
    (ii) 0.50.

[[Page 130]]

    (b) For a vessel less than 300 feet (91 meters) in length, the 
Commanding Officer, Marine Safety Center may approve the separation of 
main transverse watertight bulkheads greater than that permitted by 
paragraph (a) of this section if--
    (1) The shorter separation is impracticable; and
    (2) The separation is the smallest that is practicable.
    (c) In the case of ships less than 180 feet (55 meters) in length, 
the Commanding Officer, Marine Safety Center may approve a further 
relaxation in the bulkhead spacing. However, in no case may the 
separation be large enough to prevent the vessel from complying with the 
flooding requirements for Type II subdivision in Sec. 171.070.

         Table 171.068--Table of Uniform Average Permeabilities
------------------------------------------------------------------------
                 Location                   Uniform average permeability
------------------------------------------------------------------------
                                               10 (a-c)
Machinery Space..........................  85+--------
                                                   v
------------------------------------------------------------------------
                                               35(b)
Volume Forward of Machinery Space........  95-----
                                                 v
------------------------------------------------------------------------
                                                 35(b)
Volume Aft of Machinery Space............  95-------
                                                 v
------------------------------------------------------------------------
For each location specified in this table--
a=volume below the margin line of all spaces that, in the full load
  condition, normally contain no cargo, baggage, stores, provisions, or
  mail.
b=volume below the margin line and above the tops of floors, inner
  bottoms, or peak tanks of coal or oil fuel bunkers, chain lockers,
  fresh water tanks, and of all spaces that, in the full load condition,
  normally contain stores, baggage, mail, cargo, or provisions. If cargo
  holds are not occupied by cargo, no part of the cargo space is to be
  included in this volume.
c=volume below the margin line of the cargo, stores, provisions, or mail
  spaces within the limits of the machinery space.
v=total volume below the margin line.


[CGD 79-023, 48 FR 51017, Nov. 4, 1983, as amended by CGD 88-070, 53 FR 
34537, Sept. 7, 1988]



Sec. 171.070  Subdivision requirements--Type II.

    (a) Each vessel, except a ferry vessel, must be designed so that, 
while in each condition of loading and operation, it complies with the 
standard of flooding specified in Table 171.070(a).
    (b) Except as provided in paragraph (c), each ferry vessel must be 
designed so that, while in each condition of loading and operation, it 
meets the standard of flooding specified in Table 171.070(b).
    (c) A ferry vessel described in paragraph (d) of this section need 
not meet the standard of flooding specified in Table 171.070(b), except 
that a ferry vessel in Great Lakes service must at least have a 
collision bulkhead.
    (d) Paragraph (c) of this section applies to a ferry vessel that--
    (1) Is 150 feet (46 meters) or less in length; and
    (2) Has sufficient air tankage, or other internal buoyancy to float 
the vessel with no part of the margin line submerged when the vessel is 
completely flooded. If foam is used to comply with this paragraph, it 
must be installed in accordance with the requirements in Sec. 170.245 of 
this subchapter.
    (e) Except as specified in paragraph (f) of this section, each main 
transverse watertight bulkhead must be spaced as follows:
    (1) If the LBP of the vessel is 143 feet (43.5 meters) or more, each 
main transverse watertight bulkhead must be at least 10 feet (3 meters) 
plus 3 percent of the vessel's LBP from--
    (i) Every other main transverse watertight bulkhead;
    (ii) The collision bulkhead; and
    (iii) The aftermost point on the bulkhead deck.
    (2) If the LBP of the vessel is less than 143 feet (43.5 meters) and 
the vessel does not make international voyages, each main transverse 
watertight bulkhead must be no less than 10 percent of the vessel's LBP 
or 6 feet (1.8 meters), whichever is greater, from--
    (i) Every other main transverse watertight bulkhead;
    (ii) The collision bulkhead; and
    (iii) The aftermost point on the bulkhead deck.
    (f) If a vessel is required by Sec. 171.060 to have a collision 
bulkhead in each end of the vessel, then each main transverse watertight 
bulkhead must be no less than the distance specified in paragraph (e) of 
this section from--
    (1) Every other main transverse watertight bulkhead; and
    (2) Each collision bulkhead.

[[Page 131]]



                 Table 171.070(a)--Standard of Flooding
------------------------------------------------------------------------
                                                            Standard of
     Passengers carried             Part of vessel           flooding
                                                          (compartments)
------------------------------------------------------------------------
400 or less.................  All.......................         1
------------------------------------------------------------------------
401 to 600..................  All of the vessel forward          2
                               of the first MTWB aft of
                               the collision bulkhead..
                              All remaining portions of          1
                               the vessel.
------------------------------------------------------------------------
601 to 800..................  All of the vessel forward          2
                               of the first MTWB that is
                               aft of a point 40% of the
                               vessel's LBP aft of the
                               forward perpendicular.
                              All remaining portions of          1
                               the vessel.
------------------------------------------------------------------------
801 to 1000.................  All of the vessel forward          2
                               of the first MTWB that is
                               aft of a point 60% of the
                               vessel's LBP aft of the
                               forward prependicular..
                              All remaining portions of          1
                               the vessel.
------------------------------------------------------------------------
More than 1000..............  All.......................        2
------------------------------------------------------------------------
Where for this table-
``MTWB'' means main transverse watertight bulkhead; and ``Standard of
  Flooding`` is explained in Sec.  171.017 of this subchapter.


        Table 171.070(b)--Standard of Flooding for Ferry Vessels
------------------------------------------------------------------------
                                                            Standard of
         Vessel length               Part of vessel          flooding
                                                          (compartments)
------------------------------------------------------------------------
150 feet (46 meters) or less..  All.....................            1
------------------------------------------------------------------------
                                All of the vessel                   2
                                 forward of the first
                                 MTWB aft of the
                                 collision bulkhead.
Greater than 150 feet (46       All of the vessel aft of            2
 meters) and less than or        the first MTWB forward
 equal to 200 feet (61 meters).  of the aft peak
                                 bulkhead.
                                All remaining portions              1
                                 of the vessel.
------------------------------------------------------------------------
Greater than 200 feet (61       All.....................            2
 meters).
------------------------------------------------------------------------
Where for this table--
``MTWB'' means main transverse watertight bulkhead; and ``Standard of
  Flooding'' is explained in Sec.  171.017 of this subchapter.



Sec. 171.072  Calculation of permeability for Type II subdivision.

    When doing calcualtions to show compliance with Sec. 171.070, the 
following uniform average permeabilities must be assumed:
    (a) 85 percent in the machinery space.
    (b) 60 percent in the following spaces:
    (1) Tanks that are normally filled when the vessel is in the full 
load condition.
    (2) Chain lockers.
    (3) Cargo spaces.
    (4) Stores spaces.
    (5) Mail or baggage spaces.
    (c) 95 percent in all other spaces.



Sec. 171.073  Treatment of stepped and recessed bulkheads in Type II subdivision.

    (a) A main transverse watertight bulkhead may not be stepped unless 
additional watertight bulkheads are located as shown in Figure 
171.067(a) so that the distances A, B, C, and D illustrated in Figure 
171.067(a) comply with the following:
    (1) A and B must not exceed the maximum bulkhead spacing that 
permits compliance with Sec. 171.070; and
    (2) C and D must not be less than the minimum spacing specified in 
Sec. 171.070(e).
    (b) A main transverse watertight bulkhead may not be recessed unless 
all parts of the recess are inboard from the shell of the vessel as 
illustrated in Figure 171.067(c).
    (c) If a main transverse watertight bulkhead is recessed or stepped, 
an equivalent plane bulkhead must be used in the calculations required 
by Sec. 171.070.



Sec. 171.075  Subdivision requirements--Type III.

    (a) Each vessel must be shown by design calculations to comply with 
the requirements of Regulations 1, 2, 3, 4, 6, and 7 of the Annex to 
Resolution A.265 (VIII) of the International Maritime Organization 
(IMO).
    (b) International Maritime Organization Resolution A.265 (VIII) is 
incorporated by reference into this part.
    (c) As used in IMO Resolution A.265 (VIII), ``Administration'' means 
the Commandant, U.S. Coast Guard.



Sec. 171.080  Damage stability standards for vessels with Type I or Type II subdivision.

    (a) Calculations. Each vessel with Type I or Type II subdivision 
must be

[[Page 132]]

shown by design calculations to meet the survival conditions in 
paragraph (e), (f), or (g) of this section in each condition of loading 
and operation assuming the extent and character of damage specified in 
paragraph (b) of this section.
    (b) Extent and character of damage. For the purpose of paragraph (a) 
of this section, design calculations must assume that the damage--
    (1) Has the character specified in Table 171.080(a); and
    (2) Consists of a penetration having the dimensions specified in 
Table 171.080(a) except that, if the most disabling penetration would be 
less than the penetration described in the table, the smaller 
penetration must be assumed.
    (c) Permeability. When doing the calculations required in paragraph 
(a) of this section, the permeability of each space must be calculated 
in a manner approved by the Commanding Officer, Marine Safety Center or 
be taken from Table 171.080(c).
    (d) Definitions. For the purposes of paragraphs (e) and (f) of this 
section, the following definitions apply:
    (1) New vessel means a vessel--
    (i) For which a building contract is placed on or after April 15, 
1996;
    (ii) In the absence of a building contract, the keel of which is 
laid, or which is at a similar stage of construction, on or after April 
15, 1996;
    (iii) The delivery of which occurs on or after January 1, 1997;
    (iv) Application for the reflagging of which is made on or after 
January 1, 1997; or
    (v) That has undergone--
    (A) A major conversion for which the conversion contract is placed 
on or after April 15, 1996;
    (B) In the absence of a contract, a major conversion begun on or 
after April 15, 1996; or
    (C) A major conversion completed on or after January 1, 1997.
    (2) Existing vessel means other than a new vessel.
    (3) Watertight means capable of preventing the passage of water 
through the structure in any direction under a head of water for which 
the surrounding structure is designed.
    (4) Weathertight means capable of preventing the penetration of 
water, even boarding seas, into the vessel in any sea condition.
    (e) Damage survival for all existing vessels except those vessels 
authorized to carry more than 12 passengers on an international voyage 
requiring a SOLAS Passenger Ship Safety Certificate. An existing vessel 
is presumed to survive assumed damage if it meets the following 
conditions in the final stage of flooding:
    (1) On a vessel required to survive assumed damage with a 
longitudinal extent of 10 feet (3 meters) plus 0.03L, the final angle of 
equilibrium must not exceed 7 degrees after equalization, except that 
the final angle may be as large as 15 degrees if--
    (i) The vessel is not equipped with equalization or is equipped with 
fully automatic equalization; and
    (ii) The Commanding Officer, Marine Safety Center approves the 
vessel's range of stability in the damaged condition.
    (2) On a vessel required to survive assumed damage with a 
longitudinal extent of 20 feet (6.1 meters) plus 0.04L, the angle of 
equilibrium must not exceed 15 degrees after equalization.
    (3) The margin line may not be submerged at any point.
    (4) The vessel's metacentric height (GM) must be at least 2 inches 
(5 cm) when the vessel is in the upright position.
    (f) Damage survival for all new vessels except those vessels 
authorized to carry more than 12 passengers on an international voyage 
requiring a SOLAS Passenger Ship Safety Certificate. A new vessel is 
presumed to survive assumed damage if it is shown by calculations to 
meet the conditions set forth in paragraphs (f) (1) through (7) of this 
section in the final stage of flooding and to meet the conditions set 
forth in paragraphs (f) (8) and (9) of this section in each intermediate 
stage of flooding. For the purposes of establishing boundaries to 
determine compliance with the requirements in paragraphs (f) (1) through 
(9), openings that are fitted with weathertight closures and that are 
not submerged during any stage of flooding will not be considered 
downflooding points.

[[Page 133]]

    (1) Each vessel must have positive righting arms for a minimum range 
beyond the angle of equilibrium as follows:

------------------------------------------------------------------------
                                                                Required
                        Vessel service                           range
                                                               (degrees)
------------------------------------------------------------------------
Exposed waters, oceans, or Great Lakes winter................         15
Partially protected waters or Great Lakes summer.............         10
Protected waters.............................................          5
------------------------------------------------------------------------

    (2) No vessel may have any opening through which downflooding can 
occur within the minimum range specified by paragraph (f)(1) of this 
section.
    (3) Each vessel must have an area under each righting-arm curve of 
at least 0.015 meter-radians, measured from the angle of equilibrium to 
the smaller of the following angles:
    (i) The angle at which downflooding occurs.
    (ii) The angle of vanishing stability.
    (4) Except as provided by paragraph (f)(5) of this section, each 
vessel must have within the positive range the greater of a righting arm 
(GZ) equal to or greater than 0.10 meter or a GZ as calculated using the 
formula:
[GRAPHIC] [TIFF OMITTED] TR17OC95.004

where--
C=1.00 for vessels on exposed waters, oceans, or Great Lakes winter;
C=0.75 for vessels on partially protected waters or Great Lakes summer;
C=0.50 for vessels on protected waters;
[Delta]=intact displacement; and
Heeling moment=greatest of the heeling moments as calculated in 
          paragraphs (f)(4) (i) through (iv) of this section.

    (i) The passenger heeling moment is calculated using the formula:

Passenger Heeling Moment=0.5 (n w b)
where--
n=number of passengers;
w=passenger weight = 75 kilograms; and
b=distance from the centerline of the vessel to the geometric center on 
          one side of the centerline of the passenger deck used to leave 
          the vessel in case of flooding.

    (ii) The heeling moment due to asymmetric escape routes for 
passengers, if the vessel has asymmetric escape routes for passengers, 
is calculated assuming that--
    (A) Each passenger weighs 75 kilograms;
    (B) Each passenger occupies 0.25 square meter of deck area; and
    (C) All passengers are distributed, on available deck areas 
unoccupied by permanently affixed objects, toward one side of the vessel 
on the decks where passengers would move to escape from the vessel in 
case of flooding, so that they produce the most adverse heeling moment.
    (iii) The heeling moment due to the launching of survival craft is 
calculated assuming that--
    (A) All survival craft, including davit-launched liferafts and 
rescue boats, fitted on the side to which the vessel heels after 
sustained damage, are swung out if necessary, fully loaded and ready for 
lowering;
    (B) Persons not in the survival craft swung out and ready for 
lowering are distributed about the centerline of the vessel so that they 
do not provide additional heeling or righting moments; and
    (C) Survival craft on the side of the vessel opposite that to which 
the vessel heels remain stowed.
    (iv) The heeling moment due to wind pressure is calculated assuming 
that--
    (A) The wind exerts a pressure of 120 Newtons per square meter;
    (B) The wind acts on an area equal to the projected lateral area of 
the vessel above the waterline corresponding to the intact condition; 
and
    (C) The lever arm of the wind is the vertical distance from a point 
at one-half the mean draft, or the center of area below the waterline, 
to the center of the lateral area.
    (5) Each vessel whose arrangements do not generally allow port or 
starboard egress may be exempted, by the Commanding Officer, Marine 
Safety Center, from the transverse passenger heeling moment required by 
paragraph (f)(4)(i) of this section. Each vessel exempted must have 
sufficient longitudinal stability to prevent immersion of the deck edge 
during forward or aft egress.
    (6) Each vessel must have an angle of equilibrium that does not 
exceed--
    (i) 7 degrees for flooding of one compartment;
    (ii) 12 degrees for flooding of two compartments; or

[[Page 134]]

    (iii) A maximum of 15 degrees for flooding of one or two 
compartments where--
    (A) The vessel has positive righting arms for at least 20 degrees 
beyond the angle of equilibrium; and
    (B) The vessel has an area under each righting-arm curve, when the 
equilibrium angle is between 7 degrees and 15 degrees, in accordance 
with the formula:

    A[ge]0.0025([thetas]-1)

where--
A=Area required in m-rad under each righting-arm curve measured from the 
          angle of equilibrium to the smaller of either the angle at 
          which downflooding occurs or the angle of vanishing stability.
[thetas]=actual angle of equilibrium in degrees

    (7) The margin line of the vessel must not be submerged when the 
vessel is in equilibrium.
    (8) Each vessel must have a maximum angle of equilibrium that does 
not exceed 15 degrees during intermediate stages of flooding.
    (9) Each vessel must have a range of stability and a maximum 
righting arm during each intermediate stage of flooding as follows:

------------------------------------------------------------------------
                                                Required     Required
                Vessel service                   range        maximum
                                               (degrees)   righting arm
------------------------------------------------------------------------
Exposed waters, oceans, or Great Lakes winter          7       0.05 m
Partially-protected waters or Great Lakes              5       0.035 m
 summer......................................
Protected waters.............................          5       0.035 m
------------------------------------------------------------------------


Only one breach in the hull and only one free surface need be assumed 
when meeting the requirements of this paragraph.
    (g) Damage survival for vessels authorized to carry more than 12 
passengers on an international voyage requiring a SOLAS Passenger Ship 
Safety Certificate. A vessel is presumed to survive assumed damage if it 
is shown by calculations to comply with the damage stability required 
for that vessel by the International Convention for the Safety of Life 
at Sea, 1974, as amended, chapter II-1, part B, regulation 8.
    (h) Equalization. (1) Equalization systems on vessels of 150 gross 
tons or more in ocean service must meet the following:
    (i) Equalization must be automatic except that the Commanding 
Officer, Marine Safety Center may approve other means of equalization 
if--
    (A) It is impracticable to make equalization automatic; and
    (B) Controls to cross-flooding equipment are located above the 
bulkhead deck.
    (ii) Equalization must be fully accomplished within 15 minutes after 
damage occurs.
    (2) Equalization on vessels under 150 gross tons in ocean service 
and on all vessels in other than ocean service must meet the follmwing:
    (i) Equalization must not depend on the operation of valves.
    (ii) Equalization must be fully accomplished within 15 minutes after 
damage occurs.
    (3) The estimated maximum angle mf heel before equalization must be 
approved by the Commanding Officer, Marine Safety Center.

                                Table 171.080(a)--Extent and Character of Damage
----------------------------------------------------------------------------------------------------------------
                          Longitudinal             Transverse
Vessel designator 1       penetration 2         penetration 3, 4     Vertical penetration   Character of Damage
----------------------------------------------------------------------------------------------------------------
Z..................  10 feet (3 meters)      B/5..................  from the baseline      Assumes no damage to
                      plus ).03L or 35 feet                          upward without limit.  any main transverse
                      (10.7 meters)                                                         watertight bulkhead.
                      whichever is less.5
Y..................  10 feet (3 meters)      B/5..................  From the baseline      Assumes damage to no
                      plus )0.03L or 35                              upward without limit.  more than one main
                      feet (10.7 meters)                                                    transverse
                      whichever is less.                                                    watertight bulkhead.
X..................  10 feet (3 meters)      B/5..................  from the baseline      Assumes damage to no
                      plus )0.03L or 35                              upward without limit.  more than one main
                      feet (10.7 meters                                                     transverse
                      whichever is less.                                                    watertight bulkhead.
                     20 feet (6.1 meters)    B/5..................  From the top of the    Assumes damage to no
                      plus 0.04L.                                    double bottom upward   more than one main
                                                                     without limit.         transverse
                                                                                            watertight bulkhead.

[[Page 135]]

 
W..................  20 feet (6.1 meters)    B/5..................  From the baseline      Assumes damage to at
                      plus 0.04L.                                    upward without limit.  least two main
                                                                                            transverse
                                                                                            watertight
                                                                                            bulkheads.
----------------------------------------------------------------------------------------------------------------
(\1\) W,X,Y, and Z are determined from Table 171.080(b).
(\2\) L=LBP of the vessel in feet (meters).
(\3\) B=the beam of the vessel in feet (meters) measured at or below the deepest subdivision load line as
  defined in 171.010(a) except that, when doing calculations for a vessel that operates only on inland waters or
  a ferry vessel, B may be taken as the mean of the maximum beam on the bulkhead deck and the maximum beam at
  the deepest subdivision load line.
(\4\) The transverse penetration is applied inboard from the side of the vessel, at right angles to the
  centerline, at the level of the deepest subdivision load line.
(\5\) .1L or 6 feet (1.8 meters) whichever is greater for vessels described in Sec.  171.070(e)(2).


                            Table 171.080(b)
------------------------------------------------------------------------
               Vessel category                     Vessel designator
------------------------------------------------------------------------
Vessels with type I subdivision and a factor  W.
 of subdivision as determined from Sec.
 171.065 (a) or (b) of 0.33 or less.
Vessels with type I subdivision and a factor  X.
 of subdivision as determined from Sec.
 171.065 (a) or (b) greater than 0.33 and
 less than or equal to 0.50.
Vessels with Type II subdivision that are     Y.
 required to meet a two compartment standard
 of flooding.
All other vessels...........................  Z.
------------------------------------------------------------------------


                     Table 171.080(c)--Permeability
------------------------------------------------------------------------
              Spaces and tanks                  Permeability (percent
------------------------------------------------------------------------
Cargo, coal, stores........................  60.
Accommodations.............................  95.
Machinery..................................  85.
Tanks......................................  o or 95.\1\
------------------------------------------------------------------------
\1\ Whichever value results in the more disabling condition.


[CGD 79-023, 48 FR 51017, Nov. 4, 1983, as amended by CGD 88-070, 53 FR 
34537, Sept. 7, 1988; CGD 89-037, 57 FR 41826, Sept. 11, 1992; CGD 94-
010, 60 FR 53713, Oct. 17, 1995; CGD 97-057, 62 FR 51049, Sept. 30, 
1997]



Sec. 171.082  Damage stability standards for vessels with Type III subdivision.

    (a) Each vessel must be shown by design calculations to comply with 
the requirements of Regulations 1 and 5 of the Annex to Resolution A.265 
(VIII) of the International Maritime Organization (IMO).
    (b) International Maritime Organization Resolution A.265 (VIII) is 
incorporated by reference into this part.
    (c) As used in IMO Resolution A.265 (VIII), ``Administration'' means 
the Commandant, U.S. Coast Guard.
    (d) Section 56.50-57 of this chapter contains additional 
requirements on bilge pumping and piping systems.



             Subpart D--Additional Subdivision Requirements



Sec. 171.085  Collision bulkhead.

    (a) Paragraphs (b) through (g) of this section apply to each vessel 
of 100 gross tons or more and paragraphs (h) through (j) of this section 
apply to each vessel that is less than 100 gross tons.
    (b) The portion of the collision bulkhead that is below the bulkhead 
deck must be watertight.
    (c) Each portion of the collision bulkhead must be at least--
    (1) 5 percent of the LBP from the forward perpendicular in a motor 
vessel; and
    (2) 5 feet (1.52 meters) from the forward perpendicular in a steam 
vessel.
    (d) The collision bulkhead must be no more than 10 feet (3 meters) 
plus 5 percent of the LBP from the forward perpendicular.
    (e) The collision bulkhead must extend to the deck above the 
bulkhead deck if the vessel--
    (1) Is in ocean service; and
    (2) Has a superstructure that extends from a point forward of the 
collision bulkhead to a point at least 15 percent of the LBP aft of the 
collision bulkhead.
    (f) The collision bulkhead required by paragraph (e) of this section 
must have the following characteristics:
    (1) The portion of the collision bulkhead above the bulkhead deck 
must be weathertight.
    (2) If the portion of the collision bulkhead above the bulkhead deck 
is

[[Page 136]]

not located directly above the collision bulkhead below the bulkhead 
deck, then the bulkhead deck between must be weathertight.
    (g) Each opening in the collision bulkhead must--
    (1) Be located above the bulkhead deck; and
    (2) Have a watertight closure.
    (h) Each collision bulkhead--
    (1) Must extend to the deck above the bulkhead deck if in ocean 
service as defined in Sec. 170.050(f) of this chapter or to the bulkhead 
deck if in service on other waters;
    (2) May not have watertight doors in it; and
    (3) May have penetrations and openings that--
    (i) Are located as high and as far inboard as practicable; and
    (ii) Except as provided in paragraph (i) of this section, have means 
to make them watertight.
    (i) Each vessel that is not required to comply with a one or two 
compartment standard of flooding may have an opening that cannot be made 
watertight in the collision bulkhead below the bulkhead deck if--
    (1) The lowest edge of the opening is not more than 12 inches (30.5 
centimeters) below the bulkhead deck; and
    (2) There are at least 36 inches (92 centimeters) of intact 
collision bulkhead below the lower edge of the opening.
    (j) Each portion of the collision bulkhead must be--
    (1) At least 5 percent of the LBP from the forward perpendicular; 
and
    (2) No more than 15 percent of the LBP from the forward 
perpendicular if the space forward of the collision bulkhead is not 
subject to damage stability requirements and at any location aft of the 
location described in paragraph (j)(1) of this section if the space 
forward of the collision bulkhead is subject to damage stability 
requirements.

[CGD 79-023, 48 FR 51017, Nov. 4, 1983, as amended by CGD 85-080, 61 FR 
945, Jan. 10, 1996]



Sec. 171.090  Aft peak bulkhead.

    (a) Each of the following vessels must have an aft peak bulkhead:
    (1) Each vessel 100 gross tons or more on an international voyage.
    (2) Each other vessel of more than 150 gross tons.
    (b) Except as specified in paragraph (c) of this section, each 
portion of the aft peak bulkhead below the bulkhead deck must be 
watertight.
    (c) A vessel may have an aft peak bulkhead that does not intersect 
the bulkhead deck if approved by the Commanding Officer, Marine Safety 
Center.

[CGD 79-023, 48 FR 51017, Nov. 4, 1983, as amended by CGD 88-070, 53 FR 
34537, Sept. 7, 1988]



Sec. 171.095  Machinery space bulkhead.

    (a) This section applies to each vessel of 100 gross tons or more.
    (b) Except as provided in paragraph (c) of this section, a vessel 
required to have Type I or II subdivision must have enough main 
transverse watertight bulkheads to separate the machinery space from the 
remainder of the vessel. All portions of these bulkheads must be 
watertight below the bulkhead deck.
    (c) Compliance with paragraph (b) of this section is not required if 
the vessel has sufficient air tanks or other internal buoyancy to 
maintain the vessel afloat while in the full load condition when all 
compartments and all other tanks are flooded. If foam is used to comply 
with this paragraph, it must be installed in accordance with the 
requirements in Sec. 170.245 of this subchapter.



Sec. 171.100  Shaft tunnels and stern tubes.

    (a) Stern tubes in each of the following vessels must be enclosed in 
watertight spaces:
    (1) Each vessel of 100 gross tons or more on an international 
voyage.
    (2) Each other vessel over 150 gross tons in ocean or Great Lakes 
service.
    (3) Each vessel under 100 gross tons that carries more than 12 
passengers on an international voyage.
    (b) The watertight seal in the bulkhead between the stern tube space 
and the machinery space must be located in a watertight shaft tunnel. 
The vessel must be designed so that the margin line will not be 
submerged when the watertight shaft tunnel is flooded.
    (c) If a vessel has two or more shaft tunnels, they must be 
connected by a watertight passageway.

[[Page 137]]

    (d) If a vessel has two or less shaft tunnels, only one door is 
permitted between them and the machinery space. If a vessel has more 
then two shaft tunnels, only two doors are permitted between them and 
the machinery space.



Sec. 171.105  Double bottoms.

    (a) This section applies to each vessel that carries more than 12 
passengers on an international voyage and all other vessels that are--
    (1) 100 gross tons or more; and
    (2) In ocean or Great Lakes service.
    (b) Each vessel over 165 feet (50 meters) and under 200 feet (61 
meters) in LBP must have a double bottom that extends from the forward 
end of the machinery space to the fore peak bulkhead.
    (c) Each vessel over 200 feet (61 meters) and under 249 feet (76 
meters) in LBP must have a double bottom that extends from the fore peak 
bulkhead to the forward end of the machinery space and a double bottom 
that extends from the aft peak bulkhead to the aft end of the machinery 
space.
    (d) Each vessel 249 feet (76 meters) in LBP and upward must have a 
double bottom that extends from the fore to the aft peak bulkhead.
    (e) Each double bottom required by this section must be at least the 
depth at the centerline given by the following equation:

D=18.0+0.05(L) inches
D=45.7+0.417(L) centimeters
where--

D=the depth at the centerline in inches (centimeters).
L=LBP in feet (meters).

    (f) The line formed by the intersection of the margin plate and the 
bilge plating must be above the horizontal plane C, illustrated in 
Figure 171.105, at all points. The horizontal plane C is defined by 
point B, located, as shown in Figure 171.105, in the midships section.

[[Page 138]]

[GRAPHIC] [TIFF OMITTED] TC01MR91.024

    (g) A double bottom is not required in a tank that is integral with 
the hull of a vessel if--
    (1) The tank is used exclusively for the carriage of liquids; and
    (2) It is approved by the Commanding Officer, Marine Safety Center.
    (h) A double bottom is not required in any part of a vessel where 
the separation of main transverse watertight bulkheads is governed by a 
factor of subdivision less than or equal to 0.50 if--
    (1) The Commanding Officer, Marine Safety Center approves;
    (2) The vessel makes short international voyages; and
    (3) The vessel is permitted by Sec. 75.10-10 of this chapter to 
carry a number of passengers in excess of the lifeboat capacity.

[CGD 79-023, 48 FR 51017, Nov 4. 1983, as amended by CGD 88-070, 53 FR 
34532, Sept. 7, 1988]



Sec. 171.106  Wells in double bottoms.

    (a) This section applies to each vessel that has a well installed in 
a double bottom required by Sec. 171.105.

[[Page 139]]

    (b) Except as provided in paragraph (c) of this section--
    (1) The depth of a well must be at least 18 inches (45.7 cm) less 
than the depth of the double bottom at the centerline; and
    (2) The well may not extend below the horizontal plane C illustrated 
in Figure 171.105.
    (c) A well may extend to the outer bottom of a double bottom at the 
after end of a shaft tunnel.



Sec. 171.108  Manholes in double bottoms.

    (a) The number of manholes in the inner bottom of a double bottom 
required by Sec. 171.105 must be reduced to the minimum required for 
adequate access.
    (b) Each manhole must have a cover that can be--
    (1) Made watertight; and
    (2) Protected from damage by cargo or coal.



Sec. 171.109  Watertight floors in double bottoms.

    If a vessel is required to have a double bottom, a watertight 
transverse division must be located in the double bottom under each main 
transverse watertight bulkhead or as near as practicable to the main 
transverse watertight bulkhead. If a vessel also has duct keels, the 
transverse divisions need not extend across them.



      Subpart E--Penetrations and Openings in Watertight Bulkheads



Sec. 171.110  Specific applicability.

    (a) Sections 171.111, 171.112, and 171.113 apply to each vessel of 
100 gross tons or more.
    (b) Section 171.114 applies to each vessel under 100 gross tons.

[CGD 79-023, 48 FR 51017, Nov. 4, 1983, as amended by CGD 85-080, 61 FR 
945, Jan. 10, 1996; 62 FR 51353, Sept. 30, 1997]



Sec. 171.111  Penetrations and openings in watertight bulkheads in vessels of 100 gross tons or more.

    (a) Except as provided in paragraph (f) of this section, each 
opening in a watertight bulkhead must have a means to close it 
watertight.
    (b) Except in a machinery space, the means for closing each opening 
may not be by bolted portable plates.
    (c) If a main transverse watertight bulkhead is penetrated, the 
penetration must be made watertight. Lead or other heat sensitive 
materials must not be used in a system that penetrates a main transverse 
watertight bulkhead if fire damage to this system would reduce the 
watertight integrity of the bulkhead.
    (d) A main transverse watertight bulkhead must not be penetrated by 
valves or cocks unless they are a part of a piping system.
    (e) If a pipe, scupper, or electric cable passes through a main 
transverse watertight bulkhead, the opening through which it passes must 
be watertight.
    (f) A main transverse watertight bulkhead may not have non-
watertight penetrations below the bulkhead deck unless--
    (1) The margin line is more than 9 inches (23 centimeters) below the 
bulkhead deck at the intersection of the margin line and the line formed 
by the intersection of the plane of the main transverse watertight 
bulkhead and the shell; and
    (2) Making all penetrations watertight is impracticable.
    (g) Penetrations approved in accordance with paragraph (f) of this 
section must comply with the following:
    (1) The bottom of the penetration must not be located--
    (i) More than 24 inches (61 centimeters) below the bulkhead deck; 
nor
    (ii) Less than 9 inches (23 centimeters) above the margin line.
    (2) The penetration must not be located outboard from the centerline 
more than \1/4\ of the beam of the vessel measured--
    (i) On the bulkhead deck; and
    (ii) In the vertical plane of the penetration.
    (h) No doors, manholes, or other access openings may be located in a 
watertight bulkhead that separates two cargo spaces or a cargo space and 
a permanent or reserve bunker.



Sec. 171.112  Watertight door openings.

    (a) The opening for a watertight door must be located as high in the 
bulkhead and as far inboard as practicable.

[[Page 140]]

    (b) No more than one door, other than a door to a bunker or shaft 
alley, may be fitted in a main transverse watertight bulkhead within 
spaces containing the following:
    (1) Main and auxiliary propulsion machinery.
    (2) Propulsion boilers.
    (3) Permanent bunkers.



Sec. 171.113  Trunks.

    (a) For the purpose of this section, ``trunk'' means a large 
enclosed passageway through any deck or bulkhead of a vessel.
    (b) Each trunk, other than those specified in paragraph (c) of this 
section, must have a watertight door at each end except that a trunk may 
have a watertight door at one end if--
    (1) The trunk does not pass through more than one main compartment;
    (2) The sides of the trunk are not nearer to the shell than is 
permitted by Sec. 171.067(c) for the sides of a recess in a bulkhead; 
and
    (3) The vessel complies with the subdivision requirements in this 
part when the volume of the trunk is included with the volume of the 
compartment into which it opens.
    (c) Each trunk that provides access from a crew accommodation space 
and that passes through a main transverse watertight bulkhead must 
comply with the following:
    (1) The trunk must be watertight.
    (2) The trunk, if used for passage at sea, must have at least one 
end above the margin line and access to the other end of the trunk must 
be through a watertight door.
    (3) The trunk must not pass through the first main transverse 
watertight bulkhead aft of the collision bulkhead.



Sec. 171.114  Penetrations and openings in watertight bulkheads in a vessel less than a 100 gross tons.

    (a) Penetrations and openings in watertight bulkheads must--
    (1) Be kept as high and as far inboard as practicable; and
    (2) Have means to make them watertight.
    (b) Watertight bulkheads must not have sluice valves.
    (c) Each main traverse watertight bulkhead must extend to the 
bulkhead deck.

[CGD 85-080, 62 FR 51353, Sept. 30, 1997]



   Subpart F--Openings in the Side of a Vessel Below the Bulkhead or 
                              Weather Deck



Sec. 171.115  Specific applicability.

    (a) Sections 171.116, 171.117, and 171.118 apply to each vessel of 
100 gross tons or more.
    (b) Section 171.119 applies to each vessel under 100 gross tons.

[CGD 79-023, 48 FR 51017, Nov. 4, 1983, as amended by CGD 85-080, 61 FR 
945, Jan. 10, 1996; 62 FR 51353, Sept. 30, 1997]



Sec. 171.116  Port lights.

    (a) A vessel may have port lights below the bulkhead deck if--
    (1) It is greater than 150 gross tons; and
    (2) It is in ocean service.
    (b) All port lights in a space must be non-opening if the sill of 
any port light in that space is below a line that--
    (1) Is drawn parallel to the line formed by the intersection of the 
bulkhead deck and the shell of the vessel; and
    (2) Has its lowest point 2\1/2\ percent of the beam of the vessel 
above the deepest subdivision load line.
    (c) For the purpose of paragraph (b) of this section, the beam of 
the vessel is measured at or below the deepest subdivision load line.
    (d) Except as provided in paragraph (e) of this section, no port 
light may be located in a space that is used exclusively for the 
carriage of cargo, stores, or coal.
    (e) A port light may be located in a space used alternately for the 
carriage of cargo or passengers.
    (f) Each port light installed below the bulkhead deck must conform 
to the following requirements:
    (1) The design of each port light must be approved by the Commanding 
Officer, Marine Safety Center.
    (2) Each non-opening port light must be watertight.
    (3) Each opening port light must be constructed so that it can be 
secured watertight.

[[Page 141]]

    (4) Each opening port light must be installed with at least one bolt 
that is secured by a round slotted or recessed nut that requires a 
special wrench to remove. The nut must be protected by a sleeve or guard 
to prevent it from being removed with ordinary tools.

[CGD 79-023, 48 FR 51017, Nov. 4, 1983, as amended by CGD 88-070, 53 FR 
34537, Sept. 7, 1988]



Sec. 171.117  Dead covers.

    (a) Except as provided in paragraph (b) of this section, each port 
light with the sill located below the margin line must have a hinged, 
inside dead cover.
    (b) The dead cover on a port light located in an accommodation space 
for passengers other than steerage passengers may be portable if--
    (1) The apparatus for stowing the dead cover is adjacent to its 
respective port light;
    (2) The port light is located above the deck that is immediately 
above the deepest subdivision load line;
    (3) The port light is aft of a point one-eighth of the LBP of the 
vessel from the forward perpendicular; and
    (4) The port light is above a line that--
    (i) Is parallel to the line formed by the intersection of the 
bulkhead deck and the side of the vessel; and
    (ii) Has its lowest point at a height of 12 feet (3.66 meters) plus 
2\1/2\ percent of the beam of the vessel above the deepest subdivision 
load line.
    (c) For the purpose of paragraph (b) of this section, the beam of 
the vessel is measured at or below the deepest subdivision load line.
    (d) Each dead cover must be designed so that--
    (1) It can be secured watertight; and
    (2) It is not necessary to release any of the special nuts required 
in Sec. 171.116(f)(4) in order to secure the dead cover.



Sec. 171.118  Automatic ventilators and side ports.

    (a) An automatic ventilator must not be fitted in the side of a 
vessel below the bulkhead deck unless approved by the Commanding 
Officer, Marine Safety Center.
    (b) The design and construction of each gangway, cargo and coaling 
port, and similar opening in the side of a vessel must be approved by 
the Commanding Officer, Marine Safety Center.
    (c) In no case may the lowest point of any gangway, cargo and 
coaling port, or similar opening be below the deepest subdivision load 
line.

[CGD 79-023, 48 FR 51017, Nov. 4, 1983, as amended by CGD 88-070, 53 FR 
34537, Sept. 7, 1988]



Sec. 171.119  Openings below the weather deck in the side of a vessel less than 100 gross tons.

    (a) If a vessel operates on exposed or partially protected waters, 
an opening port light is not permitted below the weather deck unless--
    (1) The sill is at least 30 inches (76.2 centimeters) above the 
deepest subdivision load line; and
    (2) It has an inside, hinged dead cover.
    (b) Except for engine exhausts, each inlet or discharge pipe that 
penetrates the hull below a line drawn parallel to and at least 6 inches 
(15.2 centimeters) above the deepest subdivision load line must have 
means to prevent water from entering the vessel if the pipe fractures or 
otherwise fails.
    (c) A positive action valve or cock that is located as close as 
possible to the hull is an acceptable means for complying with paragraph 
(b) of this section.
    (d) If an inlet or discharge pipe is inaccessible, the means for 
complying with paragraph (b) of this section must be a shut-off valve 
that is--
    (1) Operable from the weather deck or other accessible location 
above the bulkhead deck; and
    (2) Labeled at the operating point for identity and direction of 
closing.
    (e) Any connecting device or valve in a hull penetration must not be 
cast iron.
    (f) Each plug cock in an inlet or discharge pipe must have a means, 
other than a cotter pin, to prevent its loosening or removal from the 
body.

[CGD 85-080, 62 FR 51353, Sept. 30, 1997]

[[Page 142]]



          Subpart G--Watertight Integrity Above the Margin Line



Sec. 171.120  Specific applicability.

    Each vessel that is 100 gross tons or more must comply with 
Sec. 171.122 and each vessel under 100 gross tons must comply with 
Sec. 171.124.

[CGD 85-080, 62 FR 51354, Sept. 30, 1997]



Sec. 171.122  Watertight integrity above the margin line in a vessel of 100 gross tons or more.

    (a) For the purpose of this section, a partial watertight bulkhead 
is one in which all portions are not watertight.
    (b) Except as provided in paragraph (d) of this section, the 
bulkhead deck or a deck above it must be weathertight.
    (c) Partial watertight bulkheads or web frames must be located in 
the immediate vicinity of main transverse watertight bulkheads to 
minimize as much as practicable the entry and spread of water above the 
bulkhead deck.
    (d) If a partial watertight bulkhead or web frame is located on the 
bulkhead deck in order to comply with paragraph (c) of this section, the 
joint between it and the shell and bulkhead deck must be watertight.
    (e) If a partial watertight bulkhead does not line up with a main 
transverse watertight bulkhead below the bulkhead deck, the bulkhead 
deck between them must be watertight.
    (f) Each opening in an exposed weather deck must--
    (1) Have a coaming that complies with the height requirements in 
table 171.124(d); and
    (2) Have a means for closing it weathertight.
    (g) Each port light located between the bulkhead deck and the next 
deck above the bulkhead deck must have an inside dead cover than can be 
secured watertight.

[CGD 79-023, 48 FR 51017, Nov. 4, 1983, as amended by CGD 85-080, 61 FR 
945, Jan. 10, 1996; 62 FR 51354, Sept. 30, 1997]



Sec. 171.124  Watertight integrity above the margin line in a vessel less than 100 gross tons.

    (a) Each hatch exposed to the weather must be watertight; except 
that, the following hatches may be weathertight:
    (1) Each hatch on a watertight trunk that extends at least 12 inches 
(30.5 centimeters) above the weather deck.
    (2) Each hatch in a cabin top.
    (3) Each hatch on a vessel that operates only on protected waters.
    (b) Each hatch cover must--
    (1) Have securing devices; and
    (2) Be attached to the hatch frame or coaming by hinges, captive 
chains, or to other devices to prevent its loss.
    (c) Each hatch that provides access to crew or passenger 
accommodations must be operable from either side.
    (d) Except as provided in paragraph (e) of this section, a 
weathertight door with permanent watertight coamings that comply with 
the height requirements in table 171.124(d) must be provided for each 
opening located in a deck house or companionway that--
    (1) Gives access into the hull; and
    (2) Is located in--
    (i) A cockpit;
    (ii) A well; or
    (iii) An exposed location on a flush deck vessel.

                            Table 171.124(d)
------------------------------------------------------------------------
                   Route                          Height of coaming
------------------------------------------------------------------------
Exposed or partially protected............  6 inches (15.2 centimeters).
Protected.................................  3 inches (7.6 centimeters).
------------------------------------------------------------------------

    (e) If an opening in a location specified in paragraph (d) of this 
section is provided with a Class 1 watertight door, the height of the 
watertight coaming need only be sufficient to accommodate the door.

[CGD 85-080, 62 FR 51354, Sept. 30, 1997]



                  Subpart H--Drainage of Weather Decks



Sec. 171.130  Specific applicability.

    (a) Section 171.135 applies to each vessel that is 100 gross tons or 
more.

[[Page 143]]

    (b) Sections 171.140, 171.145, 171.150, and 171.155 apply to each 
vessel under 100 gross tons.

[CGD 79-023, 48 FR 51017, Nov. 4, 1983, as amended by CGD 85-080, 61 FR 
945, Jan. 10, 1996; 62 FR 51354, Sept. 30, 1997]



Sec. 171.135  Weather deck drainage on a vessel of 100 gross tons or more.

    The weather deck must have freeing ports, open rails, and scuppers, 
as necessary, to allow rapid clearing of water under all weather 
conditions.



Sec. 171.140  Drainage of a flush deck vessel.

    (a) Except as provided in paragraph (b) of this section, the weather 
deck on a flush deck vessel must be watertight and have no obstruction 
to overboard drainage.
    (b) Each vessel with a flush deck may have solid bulwarks in the 
forward one-third length of the vessel if--
    (1) The bulwarks do not form a well enclosed on all sides; and
    (2) The foredeck of the vessel has sufficient sheer to ensure 
drainage aft.

[CGD 85-080, 62 FR 51354, Sept. 30, 1997]



Sec. 171.145  Drainage of a vessel with a cockpit.

    (a) Except as follows, the cockpit must be watertight:
    (1) A cockpit may have companionways if they comply with 
Sec. 171.124(d).
    (2) A cockpit may have ventilation openings along its inner 
periphery if--
    (i) The vessel operates only on protected or partially protected 
waters;
    (ii) The ventilation openings are located as high as possible in the 
side of the cockpit; and
    (iii) The height of the ventilation opening does not exceed 2 inches 
(5 centimeters).
    (b) The cockpit must be designed to be self-bailing.
    (c) Scuppers installed in a cockpit must be located to allow rapid 
clearing of water in all probable conditions of list and trim.
    (d) Scuppers must have a combined area of at least the area given by 
either of the following equations:

A=0.1(D) square inches.

A=6.94(D) square centimeters.

Where--

A = the combined area of the scuppers in square inches (square 
          centimeters).
D = the area of the cockpit in square feet (square meters).

    (e) The cockpit deck of a vessel that operates on exposed or 
partially protected waters must be at least 10 inches (24.5 centimeters) 
above the deepest subdivision load line, unless the vessel complies 
with--
    (1) The intact stability requirements of Sec. 171.150;
    (2) The Type II subdivision requirements in Secs. 171.070, 171.072, 
and 171.073; and
    (3) The damage stability requirements in Sec. 171.080.
    (f) The cockpit deck of all vessels that do not operate on exposed 
or partially protected waters must be located as high above the deepest 
subdivision load line as practicable.

[CGD 85-080, 62 FR 51354, Sept. 30, 1997]



Sec. 171.150  Drainage of a vessel with a well deck.

    (a) Each well deck on a vessel must be watertight.
    (b) Except as provided in paragraphs (c) and (d) of this section, 
the area required for freeing ports in the bulwarks that form a well 
must be determined as follows:
    (1) If a vessel operates on exposed or partially protected waters, 
it must have at least 100 percent of the freeing port area derived from 
table 171.150.
    (2) If a vessel operates only on protected or partially protected 
waters and complies with the requirements in the following sections for 
a vessel that operates on exposed waters, it must have at least 50 
percent of the freeing port area derived from table 171.150:
    (i) The intact stability requirements of Sec. 171.030 or 171.050 and 
Sec. 171.170.
    (ii) The subdivision requirements of Sec. 171.040, 171.043, or 
171.070.
    (iii) The damage stability requirements of Sec. 171.080.
    (3) If a vessel operates only on protected waters, the freeing port 
area must be at least equal to the scupper area required by 
Sec. 171.145(d) for a cockpit of the same size.
    (c) The freeing ports must be located to allow rapid clearing of 
water in all probable conditions of list and trim.

[[Page 144]]

    (d) If a vessel that operates on exposed or partially protected 
waters does not have free drainage from the foredeck aft, then the 
freeing port area must be derived from table 171.150 using the entire 
bulwark length rather than the bulwark length in the after two-thirds of 
the vessel as stated in the table.

                              Table 171.150
------------------------------------------------------------------------
                                                           Freeing port
     Height of solid bulwark in inches (centimeters)       area \1\ \2\
------------------------------------------------------------------------
6(15)...................................................         2(42.3)
12(30)..................................................         4(84.7)
18(46)..................................................        8(169.3)
24(61)..................................................       12(253.9)
30(76)..................................................       16(338.6)
36(91)..................................................       20(423.2)
------------------------------------------------------------------------
\1\ Intermediate values of freeing port area can be obtained by
  interpolation.
\2\ In square inches per foot (square centimeters per meter) of bulwark
  length in the after \2/3\ of the vessel.


[CGD 85-080, 62 FR 51354, Sept. 30, 1997]



Sec. 171.155  Drainage of an open boat.

    The deck within the hull of an open boat must drain to the bilge. 
Overboard drainage of the deck is not permitted.

[CGD 85-080, 62 FR 51355, Sept. 30, 1997]



PART 172--SPECIAL RULES PERTAINING TO BULK CARGOES--Table of Contents




                           Subpart A--General

Sec.
172.005  Applicability.

                          Subpart B--Bulk Grain

172.010  Applicability.
172.015  Document of authorization.
172.020  Incorporation by reference.
172.030  Exemptions for certain vessels.
172.040  Certificate of loading.

  Subpart C--Special Rules Pertaining to a Barge That Carries a Cargo 
              Regulated Under Subchapter D of This Chapter

172.047  Specific applicability.
172.048  Definitions.
172.050  Damage stability.

  Subpart D--Special Rules Pertaining to a Vessel That Carries a Cargo 
                     Regulated Under 33 CFR Part 157

172.060  Specific applicability.
172.065  Damage stability.
172.070  Intact stability.

Subpart E--Special Rules Pertaining to a Barge That Carries a Hazardous 
           Liquid Regulated Under Subchapter O of This Chapter

172.080  Specific applicability.
172.085  Hull type.
172.087  Cargo loading assumptions.
172.090  Intact transverse stability.
172.095  Intact longitudinal stability.
172.100  Watertight integrity.
172.103  Damage stability.
172.104  Character of damage.
172.105  Extent of damage.
172.110  Survival conditions.

 Subpart F--Special Rules Pertaining to a Ship That Carries a Hazardous 
           Liquid Regulated Under Subchapter O of This Chapter

172.125  Specific applicability.
172.127  Definitions.
172.130  Calculations.
172.133  Character of damage.
172.135  Extent of damage.
172.140  Permeability of spaces.
172.150  Survival conditions.

   Subpart G--Special Rules Pertaining to a Ship That Carries a Bulk 
       Liquefied Gas Regulated Under Subchapter O of This Chapter

172.155  Specific applicability.
172.160  Definitions.
172.165  Intact stability calculations.
172.170  Damage stability calculations.
172.175  Character of damage.
172.180  Extent of damage.
172.185  Permeability of spaces.
172.195  Survival conditions.
172.205  Local damage.

   Subpart H--Special Rules Pertaining to Great Lakes Dry Bulk Cargo 
                                 Vessels

172.215  Specific applicability.
172.220  Definitions.
172.225  Calculations.
172.230  Character of damage.
172.235  Extent of damage.
172.240  Permeability of spaces.
172.245  Survival conditions.

    Authority: 46 U.S.C. 3306, 3703, 5115; E.O. 12234, 45 FR 58801, 3 
CFR, 1980 Comp., p. 277; 49 CFR 1.46.

    Source: CGD 79-023, 48 FR 51040, Nov. 4, 1983, unless otherwise 
noted.

[[Page 145]]



                           Subpart A--General



172.005  Applicability.

    This part applies to each vessel that carries one of the following 
cargoes in bulk:
    (a) Grain.
    (b) A cargo listed in Table 30.25-1 of this chapter.
    (c) A cargo regulated under 33 CFR part 157.
    (d) A cargo listed in Table 151.01-10(b) of this chapter.
    (e) A cargo listed in Table I of part 153 of this chapter.
    (f) A cargo listed in Table 4 of part 154 of this chapter.
    (g) Any dry bulk cargo carried in a new Great Lakes vessel.

[CGD 79-023, 48 FR 51040, Nov. 4, 1983, as amended by CGD 80-159, 51 FR 
33059, Sept. 18, 1986]



                          Subpart B--Bulk Grain

    Source: CGD 95-028, 62 FR 51218, Sept. 30, 1997, unless otherwise 
noted.



Sec. 172.010  Applicability.

    This subpart applies to each vessel that loads grain in bulk, except 
vessels engaged solely on voyages on rivers, lakes, bays, and sounds or 
on voyages between Great Lake ports and St. Lawrence River ports as far 
east as a straight line drawn from Cape de Rosiers to West Point, 
Anticosti Island and as far east of a line drawn along the 63rd meridian 
from Anticosti Island to the north shore of the St. Lawrence River.



Sec. 172.015  Document of authorization.

    (a) Except as specified in Sec. 172.030, each vessel that loads 
grain in bulk must have a Document of Authorization issued in accordance 
with one of the following:
    (1) Section 3 of the International Code for the Safe Carriage of 
Grain in Bulk if the Document of Authorization is issued on or after 
January 1, 1994. As used in the Code, the term ``Administration'' means 
``U.S. Coast Guard''.
    (2) Regulation 10 part (a) of the Annex to IMO Assembly resolution 
A.264(VIII) if the Document of Authorization was issued before January 
1, 1994.
    (b) The Commandant recognizes the National Cargo Bureau, Inc., 30 
Vesey Street, New York, NY 10007-2914, for the purpose of issuing 
Documents of Authorization in accordance with paragraph (a)(1) of this 
section.



Sec. 172.020  Incorporation by reference.

    (a) Certain material is incorporated by reference into this part 
under approval of the Director of the Federal Register under 5 U.S.C. 
552(a) and 1 CFR part 51. To enforce any edition other than that 
specified in paragraph (b) of this section, the Coast Guard must publish 
notice of change in the Federal Register; and the material must be made 
available to the public. All approved material is available for 
inspection at the Office of the Federal Register, 800 North Capitol 
Street NW., suite 700, Washington, DC 20002, and at the U.S. Coast 
Guard, Naval Architecture Division, Office of Design and Engineering 
Standards, 2100 Second Street SW., Washington, DC 20593-0001, and is 
available from the sources indicated in paragraph (b) of this section.
    (b) The material approved for incorporation by reference in this 
part and the sections affected are as follows:

                International Maritime Organization (IMO)

Publications Section, 4 Albert Embankment, London, SE1 7SR United 
          Kingdom.
Amendment to Chapter VI of the International Convention for the Safety 
          of Life at Sea, 1960, Resolution A.264(VIII)--172.015
Publication No. 240-E, International Code for the Safe Carriage of Grain 
          in Bulk--172.015

[CGD 95-028, 62 FR 51218, Sept. 30, 1997, as amended by USCG-1998-4442, 
63 FR 52192, Sept. 30, 1998]



Sec. 172.030  Exemptions for certain vessels.

    (a) Vessels are exempt from 172.015 on voyages between:
    (1) United States ports along the East Coast as far south as Cape 
Henry, VA;
    (2) Wilmington, NC and Miami, FL;
    (3) United States ports in the Gulf of Mexico;

[[Page 146]]

    (4) Puget Sound ports and Canadian west coast ports or Columbia 
River ports, or both;
    (5) San Francisco, Los Angeles, and San Diego, CA.
    (b) Vessels exempt by paragraph (a) of this section must comply with 
the following conditions:
    (1) The master is satisfied that the vessel's longitudinal strength 
is not impaired.
    (2) The master ascertains the weather to be encountered on the 
voyage.
    (3) Potential heeling moments are reduced to a minimum by carrying 
as few slack holds as possible.
    (4) Each slack surface must be leveled.
    (5) The transverse metacentric height (GM), in meters, of the vessel 
throughout the voyage, after correction for liquid free surface, has 
been shown by stability calculations to be in excess of the required GM 
(GMR), in meters.
    (i) The GMR is the sum of the increments of GM (GMI) multiplied by 
the correction factor, f and r.

Where: r = (available freeboard) (beam) of the vessel and
f = 1 if r is  0.268 or
f = (0.268 r) if r is < 0.268.

    (ii) The GMI for each compartment which has a slack surface of 
grain, i.e., is not trimmed full, is calculated by the following 
formula:

    GMI = (B3xLx0.0661) (Disp. x SF) where: B = breadth of slack grain 
surface (m)

L = Length of compartment (m)
Disp. = Displacement of vessel (tons)
SF = Stowage factor of grain in compartment (cubic meters/tons)

    (c) Vessels which do not have the Document of Authorization required 
by Sec. 172.015 may carry grain in bulk up to one third of their 
deadweight tonnage provided the stability complies with the requirements 
of Section 9 of the International Code for the Safe Carriage of Grain in 
Bulk.



Sec. 172.040  Certificate of loading.

    (a) Before it sails, each vessel that loads grain in bulk, except 
vessels engaged solely on voyages on the Great Lakes, rivers, or lakes, 
bays, and sounds, must have a certificate of loading issued by an 
organization recognized by the Commandant for that purpose. The 
certificate of loading may be accepted as prima facie evidence of 
compliance with the regulations in this subpart.
    (b) The Commandant recognizes the National Cargo Bureau, Inc., 30 
Vesey Street, New York, NY, 10007-2914, for the purpose of issuing 
certificates of loading.



  Subpart C--Special Rules Pertaining to a Barge That Carries a Cargo 
              Regulated Under Subchapter D of This Chapter



Sec. 172.047  Specific applicability.

    This section applies to each tank barge that carries, in independent 
tanks described in Sec. 151.15-1(b) of this chapter, a cargo listed in 
Table 30.25-1 of this chapter that is a--
    (a) Liquefied flammable gas; or
    (b) Flammable liquid that has a Reid vapor pressure in excess of 25 
pounds per square inch (172.4 KPa).



Sec. 172.048  Definitions.

    As used in this subpart--
    MARPOL 73/38 means the International Convention for the Prevention 
of Pollution from Ships, 1973, as modified by the Protocol of 1978 
relating to that Convention.

[USCG-2000-7641, 66 FR 55574, Nov. 2, 2001]



Sec. 172.050  Damage stability.

    (a) Each tank barge is assigned a hull type number by the Commandant 
in accordance with Sec. 32.63-5 of this chapter. The requirements in 
this section are specified according to the hull type number assigned.
    (b) Except as provided in paragraph (c) of this section, each Type I 
and II barge hull must have a watertight weather deck.
    (c) If a Type I or II barge hull has an open hopper, the fully 
loaded barge must be shown by design calculations to have at least 2 
inches (50mm) of positive GM when the hopper space is flooded to the 
height of the weather deck.
    (d) When demonstrating compliance with paragraph (c) of this 
section, credit may be given for the buoyancy of the immersed portion of 
cargo tanks if the

[[Page 147]]

tank securing devices are shown by design calculations to be strong 
enough to hold the tanks in place when they are subjected to the buoyant 
forces resulting from the water in the hopper.
    (e) Each tank barge must be shown by design calculations to have at 
least 2 inches (50 mm) of positive GM in each condition of loading and 
operation after assuming the damage specified in paragraph (f) of this 
section is applied in the following locations:
    (1) Type I barge hull not in an integrated tow. If a Type I hull is 
required and the barge is not a box barge designed for use in an 
integrated tow, design calculations must show that the barge hull can 
survive damage at any location including on the intersection of a 
transverse and longitudinal watertight bulkhead.
    (2) Type I barge hull in an integrated tow. If a Type I hull is 
required and the barge is a box barge designed for operation in an 
integrated tow, design calculations must show that the barge can survive 
damage--
    (i) To any location on the bottom of the tank barge except on a 
transverse watertight bulkhead; and
    (ii) To any location on the side of the tank barge including on a 
transverse watertight bulkhead.
    (3) Type II hull. If a Type II hull is required, design calculations 
must show that the barge can survive damage to any location except to a 
transverse watertight bulkhead.
    (f) For the purpose of paragraph (e) of this section--
    (1) Design calculations must include both side and bottom damage, 
applied separately; and
    (2) Damage must consist of the most disabling penetration up to and 
including penetrations having the following dimensions:
    (i) Side damage must be assumed to be as follows:
    (A) Longitudinal extent--6 feet (183 centimeters).
    (B) Transverse extent--30 inches (76 centimeters).
    (C) Vertical extent--from the baseline upward without limit.
    (ii) Bottom damage must be assumed to be 15 inches (38.1 
centimeters) from the baseline upward.



  Subpart D--Special Rules Pertaining to a Vessel That Carries a Cargo 
                     Regulated Under 33 CFR Part 157



Sec. 172.060  Specific applicability.

    This subpart applies to each U.S. tank vessel that is required to 
comply with 33 CFR 157.21.

[CGD 90-051, 57 FR 36246, Aug. 12, 1992]



Sec. 172.065  Damage stability.

    (a) Definitions. As used in this section, Length or L means load 
line length (LLL).
    (b) Calculations. Each tank vessel must be shown by design 
calculations to meet the survival conditions in paragraph (g) of this 
section in each condition of loading and operation except as specified 
in paragraph (c) of this section, assuming the damage specified in 
paragraph (d) of this section.
    (c) Conditions of loading and operation. The design calculations 
required by paragraph (b) of this section need not be done for ballast 
conditions if the vessel is not carrying oil, other than oily residues, 
in cargo tanks.
    (d) Character of damage. (1) If a tank vessel is longer than 738 
feet (225 metes) in length, design calculations must show that it can 
survive damage at any location.
    (2) If a tank vessel is longer than 492 feet (150 meters) in length, 
but not longer than 738 feet (225 meters), design calculations must show 
that it can survive damage at any location except the transverse 
bulkheads bounding an aft machinery space. The machinery space is 
calculated as a single floodable compartment.
    (3) If a tank vessel is 492 feet (150 meters) or less in length, 
design calculations must show that it can survive damage--
    (i) At any location between adjacent main transverse watertight 
bulkheads except to an aft machinery space;
    (ii) To a main transverse watertight bulkhead spaced closer than the 
longitudinal extent of collision penetration specified in Table 
172.065(a) from another main transverse watertight bulkhead; and

[[Page 148]]

    (iii) To a main transverse watertight bulkhead or a transverse 
watertight bulkhead bounding a side tank or double bottom tank if there 
is a step or a recess in the transverse bulkhead that is longer than 10 
feet (3.05 meters) and that is located within the extent of penetration 
of assumed damage. The step formed by the after peak bulkhead and after 
peak tank top is not a step for the purpose of this regulaton.
    (e) Extent of damage. For the purpose of paragraph (b) of this 
section--
    (1) Design calculations must include both side and bottom damage, 
applied separately; and
    (2) Damage must consist of the penetrations having the dimensions 
given in Table 172.065(a) except that, if the most disabling 
penetrations would be less than the penetrations described in this 
paragraph, the smaller penetration must be assumed.
    (f) Permeability of spaces. When doing the calculations required in 
paragraph (b) of this section--
    (1) The permeability of a floodable space, other than a machinery 
space, must be as listed in Table 172.065(b);
    (2) Calculations in which a machinery space is treated as a 
floodable space must be based on an assumed machinery space permeability 
of 85%, unless the use of an assumed permeability of less than 85% is 
justified in detail; and
    (3) If a cargo tank would be penetrated under the assumed damage, 
the cargo tank must be assumed to lose all cargo and refill with salt 
water, or fresh water if the vessel operates solely on the Great Lakes, 
up to the level of the tank vessel's final equilibrium waterline.
    (g) Survival conditions. A vessel is presumed to survive assumed 
damage if it meets the following conditions in the final stage of 
flooding:
    (1) Final waterline. The final waterline, in the final condition of 
sinkage, heel, and trim, must be below the lower edge of an opening 
through which progressive flooding may take place, such as an air pipe, 
or an opening that is closed by means of a weathertight door or hatch 
cover. This opening does not include an opening closed by a--
    (i) Watertight manhole cover;
    (ii) Flush scuttle;
    (iii) Small watertight cargo tank hatch cover that maintains the 
high integrity of the deck;
    (iv) Class 1 door in a watertight bulkhead within the 
superstructure;
    (v) Remotely operated sliding watertight door; or
    (vi) Side scuttle of the non-opening type.
    (2) Heel angle. The maximum angle of heel must not exceed 25 
degrees, except that this angle may be increased to 30 degrees if no 
deck edge immersion occurs.
    (3) Range of stability. Through an angle of 20 degrees beyond its 
position of equilibrium after flooding, a tank vessel must meet the 
following conditions:
    (i) The righting arm curve must be positive.
    (ii) The maximum righting arm must be at least 3.94 inches (10 cm).
    (iii) Each submerged opening must be weathertight.
    (4) Progressive flooding. Pipes, ducts or tunnels within the assumed 
extent of damage must be either--
    (i) Equipped with arrangements such as stop check valves to prevent 
progressive flooding to other spaces with which they connect; or
    (ii) Assumed in the design calculations required in paragraph (b) of 
this section to permit progressive flooding to the spaces with which 
they connect.
    (h) Buoyancy of superstructure. For the purpose of paragraph (b) of 
this section, the buoyancy of any superstructure directly above the side 
damage is to be disregarded. The unflooded parts of superstructures 
beyond the extent of damage may be taken into consideration if they are 
separated from the damaged space by watertight bulkheads and no 
progressive flooding of these intact spaces takes place.

                   Table 172.065(a)--Extent of Damage
                          Collision Penetration
 
Longitudinal extent....................  0.495L2[sol]3 or 47.6 feet ((\1/
                                          3\)L 2[sol]3 or 14.5m)
                                          whichever is shorter.
Transverse extent \1\ .................  B/5 or 37.74 feet (11.5m) which
                                          is shorter.
Vertical extent........................  From the baseline upward
                                          without limit.
 
Grounding Penetration at the Forward End but Excluding Any Damage Aft of
              a Point 0.3L Aft of the Forward Perpendicular
 
Longitudinal extent....................  0.495L 2[sol]3 or 47.6 feet
                                          ((\1/3\)L 2[sol]3 or 14.5m)
                                          whichever is shorter.

[[Page 149]]

 
Transverse extent......................  B/6 or 32.81 feet (10m)
                                          whichever is shorter but not
                                          less than 16.41 feet (5m).
Vertical extent from the baseline......  B/15 or 19.7 feet (6m)
                                          whichever is shorter.
 
        Grounding Penetration at Any Other Longitudinal Position
 
Longitudinal extent....................  L/10 or 16.41 feet (5m)
                                          whichever is shorter.
Transverse extent......................  16.41 feet (5m).
Vertical extent from the baseline......  B/15 or 19.7 feet (6m)
                                          whichever is shorter.
 
                 Grounding Penetration for Raking Damage
 
For tank vessels of 20,000 DWT and
 above, the following assumed bottom
 raking damage must supplement the
 damage assumptions:.
Longitudinal extent....................  For vessels of 75,000 DWT and
                                          above, 0.6L measured from the
                                          forward perpendicular.
  .....................................  For vessels of less than 75,000
                                          DWT, 0.4L measured from the
                                          forward perpendicular.
Transverse extent......................  B/3 anywhere in the bottom.
Vertical extent........................  Breach of the outer hull.
 
\1\ Damage applied inboard from the vessel's side at right angles to the
  centerline at the level of the summer load line assigned under
  Subchapter E of this chapter.


                     Table 172.065(b)--Permeability
------------------------------------------------------------------------
              Spaces and tanks                  Permeability (percent)
------------------------------------------------------------------------
Storeroom spaces...........................  60.
Accommodation spaces.......................  95.
Voids......................................  95.
Consumable liquid tanks....................  95 or 0.\1\
Other liquid tanks.........................  95 or 0.\2\
------------------------------------------------------------------------
\1\ Whichever results in the more disabling condition.
\2\ If tanks are partially filled, the permeability must be determined
  from the actual density and amount of liquid carried.


[CGD 79-023, 48 FR 51040, Nov. 4, 1983, as amended by USCG-2000-7641, 66 
FR 55574, Nov. 2, 2001]



Sec. 172.070  Intact stability.

    All tank vessels of 5,000 DWT and above contracted after the 
effective date of this rulemaking must comply with the intact stability 
requirements of Regulation 25A, annex I of MARPOL 73/78.

[USCG-2000-7641, 66 FR 55575, Nov. 2, 2001]



Subpart E--Special Rules Pertaining to a Barge That Carries a Hazardous 
           Liquid Regulated Under Subchapter O of This Chapter



Sec. 172.080  Specific applicability.

    This subpart applies to each tank barge that carries a cargo listed 
in Table 151.01-10(b) of this chapter.



Sec. 172.085  Hull type.

    If a cargo listed in Table 151.05 of part 151 of this chapter is to 
be carried, the tank barge must be at least the hull type specified in 
Table 151.05 of this chapter for that cargo.



Sec. 172.087  Cargo loading assumptions.

    (a) The calculations required in this subpart must be done for cargo 
weights and densities up to and including the maximum that is to be 
endorsed on the Certificate of Inspection in accordance with 
Sec. 151.04-1(c) of this chapter.
    (b) For each condition of loading and operation, each cargo tank 
must be assumed to have its maximum free surface.



Sec. 172.090  Intact transverse stability.

    (a) Except as provided in paragraph (b) of this section, each tank 
barge must be shown by design calculations to have a righting arm curve 
with the following characteristics:
    (1) If the tank barge is in river service, the area under the 
righting arm curve must be at least 5 foot-degrees (1.52 meter-degrees) 
up to the smallest of the following angles:
    (i) The angle of maximum righting arm.
    (ii) The downflooding angle.
    (2) If the tank barge is in lakes, bays and sounds or Great Lakes 
summer service, the area under the righting arm curve must be at least 
10 foot-degrees (3.05 meter-degrees) up to the smallest of the following 
angles:
    (i) The angle of maximum righting arm.
    (ii) The downflooding angle.
    (3) If the tank barge is in ocean or Great Lakes winter service, the 
area under the righting arm curve must be

[[Page 150]]

at least 15 foot-degrees (4.57 meter-degrees) up to the smallest of the 
following angles:
    (i) The angle of maximum righting arm.
    (ii) The downflooding angle.
    (b) If the vertical center of gravity of the cargo is below the 
weather deck at the side of the tank barge amidships, it must be shown 
by design calculations that the barge has at least the following 
metacentric height (GM) in feet (meters) in each condition of loading 
and operation:

[GRAPHIC] [TIFF OMITTED] TC01MR91.025

where--
K=0.3 for river service.
K=0.4 for lakes, bays and sounds and Great Lakes summer service.
K=0.5 for ocean and Great Lakes winter service.
B=beam in feet (meters).
fe=effective freeboard in feet (meters).

    (c) The effective freeboard is given by--

fe=f + fa ; or
fe=d, whichever is less.
where--
f=the freeboard to the deck edge amidships in feet (meters).
fa=(1.25)(a/L)((2b/B)-1)(h); or
fa=h, whichever is less.
where--
a=trunk length in feet (meters).
L=LOA in feet (meters)
b=breadth of a watertight trunk in feet (meters).
B=beam of the barge in feet (meters).
h=height of a watertight trunk in feet (meters).
d=draft of the barge in feet (meters).

    (d) For the purpose of this section, downflooding angle means the 
static angle from the intersection of the vessel's centerline and 
waterline in calm water to the first opening that does not close 
watertight automatically.



Sec. 172.095  Intact longitudinal stability.

    Each tank barge must be shown by design calculations to have a 
longitudinal metacentric height (GM) in feet (meters) in each condition 
of loading and operation, at least equal to the following:
[GRAPHIC] [TIFF OMITTED] TC01MR91.026

where--
L=LOA in feet (meters)
d=draft in feet (meters).



Sec. 172.100  Watertight integrity.

    (a) Except as provided in paragraph (b) of this section, each Type I 
or II hopper barge hull must have a weathertight weather deck.
    (b) If a Type I or II barge hull has an open hopper, the fully 
loaded barge must be shown by design calculations to have at least 2 
inches (50 mm) of positive GM when the hopper space is flooded to the 
height of the weather deck.
    (c) When doing the calculations required by this section, credit may 
be given for the buoyancy of the immersed portion of cargo tanks if the 
tank securing devices are shown by design calculations to be strong 
enough to hold the tanks in place when they are subjected to the buoyant 
forces resulting from the water in the hopper.



Sec. 172.103  Damage stability.

    Each tank barge must be shown by design calculations to meet the 
survival conditions in Sec. 172.110 assuming the damage specified in 
Sec. 172.104 to the hull type specified in Table 151.05 of part 151 of 
this chapter.



Sec. 172.104  Character of damage.

    (a) Type I barge hull not in an integrated tow. If a Type I hull is 
required and the barge is not a box barge designed for use in an 
integrated tow, design calculations must show that the barge can survive 
damage at any location including the intersection of a transverse and a 
longitudinal bulkhead.
    (b) Type I barge hull in an integrated tow. If a Type I barge hull 
is required and the barge is a box barge designed for operation in an 
integrated tow, design calculations must show that the barge can survive 
damage--
    (1) At any location on the bottom of the tank barge except on a 
transverse watertight bulkhead; and

[[Page 151]]

    (2) At any location on the side of the tank barge including on a 
transverse watertight bulkhead.
    (c) Type II barge hull. If a Type II hull is required, design 
calculations must show that a barge can survive damage at any location 
except on a transverse watertight bulkhead.



Sec. 172.105  Extent of damage.

    For the purpose of Sec. 172.103, design calculations must include 
both side and bottom damage, applied separately. Damage must consist of 
the most disabling penetration up to and including penetrations having 
the following dimensions:
    (a) Side damage must be assumed to be as follows:
    (1) Longitudinal extent--6 feet (183 centimeters).
    (2) Transverse extent--30 inches (76 centimeters).
    (3) Vertical extent--from the baseline upward without limit.
    (b) Bottom damage must be assumed to be 15 inches (38 centimeters) 
from the baseline upward.



Sec. 172.110  Survival conditions.

    (a) Paragraphs (c) and (d) of this section apply to a hopper barge 
and paragraphs (e) through (i) apply to all other tank barges.
    (b) A barge is presumed to survive assumed damage if it meets the 
following conditions in the final stage of flooding:
    (c) A hopper barge must not heel or trim beyond the angle at which--
    (1) The deck edge is first submerged; or
    (2) If the barge has a coaming that is at least 36 inches (91.5 
centimeters) in height, the intersection of the deck and the coaming is 
first submerged, except as provided in paragraph (d) of this section.
    (d) A hopper barge must not heel beyond the angle at which the deck 
edge is first submerged by more than ``fa'' as defined in 
Sec. 172.090(c).
    (e) Except as provided in paragraphs (h) and (i) of this section, 
each tank barge must not heel beyond the angle at which--
    (1) The deck edge is first submerged; or
    (2) If the barge has one or more watertight trunks, the deck edge is 
first submerged by more than ``fa'' as defined in Sec. 172.090(c).
    (f) Except as provided in paragraphs (h) and (i) of this section, a 
tank barge must not trim beyond the angle at which--
    (1) The deck edge is first submerged; or
    (2) If the barge has one or more watertight trunks, the intersection 
of the deck and the trunk is first submerged.
    (g) If a tank barge experiences simultaneous heel and trim, the trim 
requirements in paragraph (f) of this section apply only at the 
centerline.
    (h) Except as provided in paragraph (i) of this section, in no case 
may any part of the actual cargo tank top be underwater in the final 
condition of equilibrium.
    (i) If a barge has a ``step-down'' in hull depth on either or both 
ends and all cargo tank openings are located on the higher deck level, 
the deck edge and tank top in the stepped-down area may be submerged.



 Subpart F--Special Rules Pertaining to a Ship That Carries a Hazardous 
           Liquid Regulated Under Subchapter O of This Chapter



Sec. 172.125  Specific applicability.

    This subpart applies to each tankship that carries a cargo listed in 
Table I of part 153 of this chapter, except that it does not apply to a 
tankship whose cargo tanks are clean and gas free.



Sec. 172.127  Definitions.

    Length or L means load line length (LLL).



Sec. 172.130  Calculations.

    (a) Except as provided in Sec. 153.7 of this chapter, each tankship 
must be shown by design calculations to meet the survival conditions in 
Sec. 172.150 in each condition of loading and operation assuming the 
damage specified in Sec. 172.133 for the hull type prescribed in part 
153 of this chapter.
    (b) If a cargo listed in Table I of part 153 of this chapter is to 
be carried, the vessel must be at least the hull type

[[Page 152]]

specified in part 153 of this chapter for that cargo.

[CGD 79-023, 48 FR 51040, Nov. 4, 1983, as amended by CGD 81-101, 52 FR 
7799, Mar. 12, 1987]



Sec. 172.133  Character of damage.

    (a) If a type I hull is required, design calculations must show that 
the vessel can survive damage at any location.
    (b) Except as provided in Sec. 153.7 of this chapter, if a type II 
hull is required, design calculations must show that a vessel--
    (1) Longer than 492 feet (150 meters) in length can survive damage 
at any location; and
    (2) Except as specified in paragraph (d) of this section, 492 feet 
(150 meters) or less in length can survive damage at any location.
    (c) If a Type III hull is required, design calculations must show 
that a vessel--
    (1) Except as specified in paragraph (d) of this section, 410 feet 
(125 meters) in length or longer can survive damage at any location; and
    (2) Less than 410 feet (125 meters) in length can survive damage at 
any location except to an aft machinery space.
    (d) A vessel described in paragraph (b)(2) or (c)(1) of this section 
need not be designed to survive damage to a main transverse watertight 
bulkhead bounding an aft machinery space. Except as provided in 
Sec. 153.7 of this chapter, the machinery space must be calculated as a 
single floodable compartment.

[CGD 79-023, 48 FR 51040, Nov. 4, 1983, as amended by CGD 81-101, 52 FR 
7799, Mar. 12, 1987]



Sec. 172.135  Extent of damage.

    For the purpose of Sec. 172.133--
    (a) Design calculations must include both side and bottom damage, 
applied separately; and
    (b) Damage must consist of the penetrations having the dimensions 
given in Table 172.135 except that, if the most disabling penetrations 
would be less than the penetrations given in Table 172.135, the smaller 
penetration must be assumed.

                     Table 172.135--Extent of Damage
                          Collision Penetration
Longitudinal extent....................  0.495L \2/3\ or 47.6 feet ((\1/
                                          3\)L \2/3\ or 14.5m) whichever
                                          is shorter.
Transverse extent \1\..................  B/5 or 37.74 feet (11.5m) \2\
                                          whichever is shorter.
Vertical extent........................  From the baseline upward
                                          without limit.
 
Grounding Penetration At the Forward End But Excluding Any Damage Aft of
              a Point 0.3L Aft of the Forward Perpendicular
 
Longitudinal extent....................  L/10.
Transverse extent......................  B/6 or 32.81 feet (10m)
                                          whichever is shorter.
Vertical extent from the baseline        B/15 or 19.7 feet (6m)
 upward.                                  whichever is shorter.
 
        Grounding Penetration At Any Other Longitudinal Position
 
Longitudinal extent....................  L/10 or 16.41 feet (5m)
                                          whichever is shorter.
Transverse extent......................  16.41 feet (5m).
Vertical extent from the baseline        B/15 or 19.7 feet (6m)
 upward.                                  whichever is shorter.
 
\1\ Damage applied inboard from the vessel's side at right angles to the
  centerline at the level of the summer load line assigned under
  Subchapter E of this chapter.
\2\ B is measured amidships.



Sec. 172.140  Permeability of spaces.

    (a) When doing the calculations required in Sec. 172.130, the 
permeability of a floodable space other than a machinery space must be 
as listed in Table 172.060(b).
    (b) Calculations in which a machinery space is treated as a 
floodable space must be based on an assumed machinery space permeability 
of 0.85, unless the use of an assumed permeability of less than 0.85 is 
justified in detail.
    (c) If a cargo tank would be penetrated under the assumed damage, 
the cargo tank must be assumed to lose all cargo and refill with salt 
water up to the level of the tankship's final equilibrium waterline.



Sec. 172.150  Survival conditions.

    A tankship is presumed to survive assumed damage if it meets the 
following conditions in the final stage of flooding:
    (a) Final waterline. The final waterline, in the final condition of 
sinkage, heel, and trim, must be below the lower edge of openings such 
as air pipes and openings closed by weathertight doors or hatch covers. 
The following types of openings may be submerged when the tankship is at 
the final waterline:
    (1) Openings covered by watertight manhole covers or watertight 
flush scuttles.

[[Page 153]]

    (2) Small watertight cargo tank hatch covers.
    (3) A Class 1 door in a watertight bulkhead within the 
superstructure.
    (4) Remotely operated sliding watertight doors.
    (5) Side scuttles of the non-opening type.
    (b) Heel angle. (1) Except as described in paragraph (b)(2) of this 
section, the maximum angle of heel must not exceed 15 degrees (17 
degrees if no part of the freeboard deck is immersed).
    (2) The Commanding Officer, Marine Safety Center will consider on a 
case by case basis each vessel 492 feet (150 meters) or less in length 
having a final heel angle greater than 17 degrees but less than 25 
degrees.
    (c) Range of stability. Through an angle of 20 degrees beyond its 
position of equilibrium after flooding, a tankship must meet the 
following conditions:
    (1) The righting arm curve must be positive.
    (2) The maximum righting arm must be at least 3.95 inches (10 cm).
    (3) Each submerged opening must be weathertight.
    (d) Progressive flooding. Pipes, ducts or tunnels within the assumed 
extent of damage must be either--
    (1) Equipped with arrangements such as stop check valves to prevent 
progressive flooding to other spaces with which they connect; or
    (2) Assumed in the design calculations required by Sec. 172.130 to 
flood the spaces with which they connect.
    (e) Buoyancy of superstructure. The buoyancy of any superstructure 
directly above the side damage is to be disregarded. The unflooded parts 
of superstructures beyond the extent of damage may be taken into 
consideration if they are separated from the damaged space by watertight 
bulkheads and no progressive flooding of these intact spaces takes 
place.
    (f) Metacentric height. After flooding, the tankship's metacentric 
height must be at least 2 inches (50mm) when the ship is in the upright 
position.
    (g) Equalization arrangements. Flooding equalization arrangements 
requiring mechanical operation such as valves or cross-flooding lines 
may not be assumed to reduce the angle of heel. Spaces joined by ducts 
of large cross sectional area are treated as common spaces.
    (h) Intermediate stages of flooding. If an intermediate stage of 
flooding is more critical than the final stage, the tankship must be 
shown by design calculations to meet the requirements in this section in 
the intermediate stage.

[CGD 79-023, 48 FR 51040, Nov. 4, 1983, as amended by CGD 88-070, 53 FR 
34537, Sept. 7, 1988]



   Subpart G--Special Rules Pertaining to a Ship That Carries a Bulk 
       Liquefied Gas Regulated Under Subchapter O of This Chapter



Sec. 172.155  Specific applicability.

    This subpart applies to each tankship that has on board a bulk 
liquefied gas listed in Table 4 of part 154 of this chapter as cargo, 
cargo residue, or vapor.



Sec. 172.160  Definitions.

    As used in this subpart--
    (a) Length or L means the load line length (LLL).
    (b) MARVS means the Maximum Allowable Relief Valve Setting of a 
cargo tank.



Sec. 172.165  Intact stability calculations.

    (a) Design calculations must show that 2 inches (50mm) of positive 
metacentric height can be maintained by each tankship when it is being 
loaded and unloaded.
    (b) For the purpose of demonstrating compliance with the 
requirements of paragraph (a) of this section, the effects of the 
addition of water ballast may be considered.



Sec. 172.170  Damage stability calculations.

    (a) Each tankship must be shown by design calculations to meet the 
survival conditions in Sec. 172.195 in each condition of loading and 
operation assuming the damage specified in Sec. 172.175 for the hull 
type specified in Table 4 of part 154 of this chapter.
    (b) If a cargo listed in Table 4 of part 154 of this chapter is to 
be carried, the vessel must be at least the ship type

[[Page 154]]

specified in Table 4 of part 154 of this chapter for the cargo.



Sec. 172.175  Character of damage.

    (a) If a type IG hull is required, design calculations must show 
that the vessel can survive damage at any location.
    (b) If a type IIG hull is required, design calculations must show 
that a vessel--
    (1) Longer than 492 feet (150 meters) in length can survive damage 
at any location; and
    (2) 492 feet (150 meters) or less in length can survive damage at 
any location except the transverse bulkheads bounding an aft machinery 
space. The machinery space is calculated as a single floodable 
compartment.
    (c) If a vessel has independent tanks type C with a MARVS of 100 psi 
(689 kPa) gauge or greater, is 492 feet (150 meters) or less in length, 
and Table 4 of part 154 of this chapter allows a type IIPG hull, design 
calculations must show that the vessel can survive damage at any 
location, except as prescribed in paragraph (e) of this section.
    (d) If a type IIIG hull is required, except as specified in 
paragraph (e) of this section, design calculations must show that a 
vessel--
    (1) 410 feet (125 meters) in length or longer can survive damage at 
any location; and
    (2) Less than 410 feet (125 meters) in length can survive damage at 
any location, except in the main machinery space.
    (e) The calculations in paragraphs (c) and (d) of this section need 
not assume damage to a transverse bulkhead unless it is spaced closer 
than the longitudinal extent of collision penetration specified in Table 
172.180 from another transverse bulkhead.
    (f) If a main transverse watertight bulkhead or transverse 
watertight bulkhead bounding a side tank or double bottom tank has a 
step or a recess that is longer than 10 feet (3.05 meters) located 
within the extent of penetration of assumed damage, the vessel must be 
shown by design calculations to survive damage to this bulkhead. The 
step formed by the after peak bulkhead and after peak tank top is not a 
step for the purpose of this regulation.



Sec. 172.180  Extent of damage.

    For the purpose of Sec. 172.170--
    (a) Design calculations must include both side and bottom damage, 
applied separately; and
    (b) Damage must consist of the penetrations having the dimensions 
given in Table 172.180 except that, if the most disabling penetrations 
would be less than the penetrations given in Table 172.180, the smaller 
penetration must be assumed.

                     Table 172.180--Extent of Damage
 
                          Collision Penetration
 
Longitudinal extent...............  0.495L2/3 or 47.6 feet ((1/3)L2/3 or
                                     14.5m) whichever is shorter.
Transverse extent \1\.............  B/5 or 37.74 feet (11.5m) \2\
                                     whichever is shorter.
Vertical extent...................  From the baseline upward without
                                     limit.
 
 
Grounding Penetration at the Forward End But Excluding Any Damage Aft of
              a Point 0.3L Aft of the Forward Perpendicular
 
Longitudinal extent...............  0.495L2/3 or 47.6 feet ((1/3)L2/3 or
                                     14.5m) whichever is shorter.
Transverse extent.................  B/6 or 32.81 feet (10m) whichever is
                                     shorter.
Vertical extent from the molded     B/15 or 6.6 feet (2m) whichever is
 line of the shell at the            shorter.
 centerline.
 
 
        Grounding Penetration At Any Other Longitudinal Position
 
Longitudinal extent...............  L/10 or 16.41 feet (5m) whichever is
                                     shorter.
Transverse extent.................  B/6 or 16.41 feet (5m) whichever is
                                     shorter.
Vertical extent from the molded     B/15 or 6.6 feet (2m) whichever is
 line of the shell at the            shorter.
 centerline.
 
\1\ Damage applied inboard from the vessel's side at right angles to the
  centerline at the level of the summer load line assigned under
  Subchapter E of this chapter.
\2\ B is measured amidships.



Sec. 172.185  Permeability of spaces.

    (a) When doing the calculations required in Sec. 172.170, the 
permeability of a floodable space other than a machinery space must be 
as listed in Table 172.060(b).
    (b) Calculations in which a machinery space is treated as a 
floodable space must be based on an assumed machinery space permeability 
of 85%, unless the use of an assumed permeability of less than 85% is 
justified in detail.
    (c) If a cargo tank would be penetrated under the assumed damage, 
the cargo tank must be assumed to lose all cargo and refill with salt 
water up to

[[Page 155]]

the level of the tankship's final equilibrium waterline.



Sec. 172.195  Survival conditions.

    A vessel is presumed to survive assumed damage if it meets the 
following conditions in the final stage of flooding:
    (a) Final waterline. The final waterline, in the final condition of 
sinkage, heel, and trim, must be below the lower edge of an opening 
through which progressive flooding may take place, such as an air pipe, 
or an opening that is closed by means of a weathertight door or hatch 
cover. This opening does not include an opening closed by a--
    (1) Watertight manhole cover;
    (2) Flush scuttle;
    (3) Small watertight cargo tank hatch cover that maintains the high 
integrity of the deck;
    (4) A Class 1 door in a watertight bulkhead within the 
superstructure;
    (5) Remotely operated sliding watertight door; or
    (6) A side scuttle of the non-opening type.
    (b) Heel angle. The maximum angle of heel must not exceed 30 
degrees.
    (c) Range of stability. Through an angle of 20 degrees beyond its 
position of equilibrium after flooding, a tankship must meet the 
following conditions:
    (1) The righting arm curve must be positive.
    (2) The maximum righting arm must be at least 3.94 inches (10 cm).
    (3) Each submerged opening must be weathertight.
    (d) Progressive flooding. If pipes, ducts, or tunnels are within the 
assumed extent of damage, arrangements must be made to prevent 
progressive flooding to a space that is not assumed to be flooded in the 
damaged stability calculations.
    (e) Buoyancy of superstructure. The buoyancy of any superstructure 
directly above the side damage is to be disregarded. The unflooded parts 
of superstructures beyond the extent of damage may be taken into 
consideration if they are separated from the damaged space by watertight 
bulkheads and no progressive flooding of these intact spaces takes 
place.
    (f) Metacentric height. After flooding, the tank ship's metacentric 
height must be at least 2 inches (50 mm) when the vessel is in the 
upright position.
    (g) Equalization arrangements. Equalization arrangements requiring 
mechanical aids such as valves or cross-flooding lines may not be 
considered for reducing the angle of heel. Spaces joined by ducts of 
large cross-sectional area are treated as common spaces.
    (h) Intermediate stages of flooding. If an intermediate stage of 
flooding is more critical than the final stage, the tank vessel must be 
shown by design calculations to meet the requirements in this section in 
the intermediate stage.



Sec. 172.205  Local damage.

    (a) Each tankship must be shown by design calculations to meet the 
survival conditions in paragraph (b) of this section in each condition 
of loading and operation assuming that local damage extending 30 inches 
(76 cm) normal to the hull shell is applied at any location in the cargo 
length:
    (b) The vessel is presumed to survive assumed local damage if it 
does not heel beyond the smaller of the following angles in the final 
stage of flooding:
    (1) 30 degrees.
    (2) The angle at which restoration of propulsion and steering, and 
use of the ballast system is precluded.



   Subpart H--Special Rules Pertaining to Great Lakes Dry Bulk Cargo 
                                 Vessels

    Source: CGD 80-159, 51 FR 33059, Sept. 18, 1986, unless otherwise 
noted.



Sec. 172.215  Specific applicability.

    This subpart applies to each new Great Lakes vessel of 1600 gross 
tons or more carrying dry cargo in bulk.



Sec. 172.220  Definitions.

    (a) As used in this subpart Length (L), Breadth (B), and Molded 
Depth (D) are as defined in Sec. 45.3 of this chapter.
    (b) As used in this part new Great Lakes Vessel means a vessel 
operating solely within the limits of the Great

[[Page 156]]

Lakes as defined in this subchapter that:
    (1) Was contracted for on or after November 17, 1986, or delivered 
on or after November 17, 1988.
    (2) Has undergone a major conversion under a contract made on or 
after November 17, 1986, or completed a major conversion on or after 
November 17, 1987.


[CGD 80-159, 51 FR 33059, Sept. 18, 1986]



Sec. 172.225  Calculations.

    (a) Each vessel must be shown by design calculations to meet the 
survival conditions in Sec. 172.245 in each condition of loading and 
operation, assuming the damage specified in Sec. 172.230.
    (b) When doing the calculations required by paragraph (a) of this 
section, the virtual increase in the vertical center of gravity due to a 
liquid in a space must be determined by calculating either--
    (1) The free surface effect of the liquid with the vessel assumed 
heeled five degrees from the vertical; or
    (2) The shift of the center of gravity of the liquid by the moment 
of transference method.
    (c) In calculating the free surface effect of consumable liquids, it 
must be assumed that, for each type of liquid, at least one transverse 
pair of wing tanks or a single centerline tank has a free surface. The 
tank or combination of tanks selected must be those having the greatest 
free surface effect.
    (d) When doing the calculations required by paragraph (a) of this 
section, the buoyancy of any superstructure directly above the side 
damage must not be considered. The unflooded parts of superstructures 
beyond the extent of damage may be considered if they are separated from 
the damaged space by watertight bulkheads and no progressive flooding of 
these intact spaces takes place.



Sec. 172.230  Character of damage.

    (a) Design calculations must show that each vessel can survive 
damage--
    (1) To any location between adjacent main transverse watertight 
bulkheads;
    (2) To any location between a main transverse bulkhead and a partial 
transverse bulkhead in way of a side wing tank;
    (3) To a main or wing tank transverse watertight bulkhead spaced 
closer than the longitudinal extent of collision penetration specified 
in Table 172.235 to another main transverse watertight bulkhead; and
    (4) To a main transverse watertight bulkhead or a transverse 
watertight bulkhead bounding a side tank or double bottom tank if there 
is a step or a recess in the transverse bulkhead that is longer than 10 
feet (3.05 meters) and that is located within the extent of penetration 
of assumed damage. The step formed by the after peak bulkhead and after 
peak tank top is not a step for the purpose of this paragraph.



Sec. 172.235  Extent of damage.

    For the purpose of the calculations required in Sec. 172.225--
    (a) Design calculations must include both side and bottom damage, 
applied separately; and
    (b) Damage must consist of the penetrations having the dimensions 
given in Table 172.235 except that, if the most disabling penetrations 
would be less than the penetrations described in this paragraph, the 
smaller penetration must be assumed.

                     Table 172.235--Extent of Damage
                          Collision Penetration
------------------------------------------------------------------------
 
 Longitudinal extent...................  0.495 L2[sol]3 or 47.6 feet.
                                         (1/3 L2[sol]3 or 14.5 m),
                                          whichever is less.
Transverse extent......................  4 feet 2 inches (1.25 m).\1\
Vertical extent........................  From the baseline upward
                                          without limit.
------------------------------------------------------------------------
 
     Grounding Penetration Forward of a Point 0.3L Aft of the Forward
                              Perpendicular
------------------------------------------------------------------------
 
 Longitudinal..........................  0.495 L2[sol]3 or 47.6 feet.
                                         (1/3 L2[sol]3 or 14.5 m),
                                          whichever is less.
Transverse.............................  B/6 or 32.8 feet (10 m),
                                          whichever is less, but not
                                          less than 16.4 feet (5 m).\1\
Vertical extent........................  0.75 m from the baseline.
------------------------------------------------------------------------
 
         Grounding Penetration at Any Other Longitudinal Position
------------------------------------------------------------------------
 
 Longitudinal extent...................  L/10 or 16.4 feet (5 m),
                                          whichever is less.
Transverse.............................  4 feet 2 inches (1.25 m).

[[Page 157]]

 
Vertical extent........................  2 feet 6 inches (0.75 m) from
                                          the baseline.
 
------------------------------------------------------------------------
 \1\ Damage applied inboard from the vessel's side at right angles to
  the centerline at the level of the summer load line assigned under
  Subchapter E of this chapter.



Sec. 172.240  Permeability of spaces.

    When doing the calculations required in Sec. 172.225,
    (a) The permeability of a floodable space, other than a machinery or 
cargo space, must be assumed as listed in Table 172.240;
    (b) Calculations in which a machinery space is treated as a 
floodable space must be based on an assumed machinery space permeability 
of 85% unless the use of an assumed permeability of less than 85% is 
justified in detail; and
    (c) Calculations in which a cargo space that is completely filled is 
considered flooded must be based on an assumed cargo space permeability 
of 60% unless the use of an assumed permeability of less than 60% is 
justified in detail. If the cargo space is not completely filled, a 
cargo space permeability of 95% must be assumed unless the use of an 
assumed permeability of less than 95% is justified in detail.

                       Table 172.240--Permeability
------------------------------------------------------------------------
                                                          Permeability
                   Spaces and tanks                        (percent)
------------------------------------------------------------------------
Storeroom spaces.....................................          60
Accommodations spaces................................          95
Voids................................................          95
Consumable liquid tanks..............................  \1\ 95 or 0
Other liquid tanks...................................  \2\ 95 or 0
Cargo (completely filled)............................          60
Cargo (empty)........................................          95
Machinery............................................         85
------------------------------------------------------------------------
\1\ Whichever results in the more disabling condition.
\2\ If tanks are partially filled, the permeability must be determined
  from the actual density and amount of liquid carried.



Sec. 172.245  Survival conditions.

    A vessel is presumed to survive assumed damage if it meets the 
following conditions in the final stage of flooding:
    (a) Final waterline. The final waterline, in the final condition of 
sinkage, heel, and trim must be below the lower edge of an opening 
through which progressive flooding may take place, such as an air pipe, 
or an opening that is closed by means of a weathertight door or hatch 
cover. This opening does not include an opening closed by a:
    (1) Watertight manhole cover;
    (2) Flush scuttle;
    (3) Small watertight cargo tank hatch cover that maintains the high 
integrity of the deck;
    (4) Class 1 door in a watertight bulkhead;
    (5) Remotely operated sliding watertight door;
    (6) Side scuttle of the nonopening type;
    (7) Retractable inflatable seal; or
    (8) Guillotine door.
    (b) Heel angle. The maximum angle of heel must not exceed 15 
degrees, except that this angle may be increased to 17 degrees if no 
deck edge immersion occurs.
    (c) Range of stability. Through an angle of 20 degrees beyond its 
position of equilibrium after flooding, a vessel must meet the following 
conditions:
    (1) The righting arm curve must be positive.
    (2) The maximum righting arm must be at least 4 inches (10 cm).
    (3) Each submerged opening must be weathertight
    (d) Metacentric height. After flooding, the metacentric height must 
be at least 2 inches (50 mm) when the vessel is in the equilibrium 
position.
    (e) Progressive flooding. In the design calculations required by 
Sec. 172.225, progressive flooding between spaces connected by pipes, 
ducts or tunnels must be assumed unless:
    (1) Pipes within the assumed extent of damage are equipped with 
arrangements such as stop check valves to prevent progressive flooding 
to other spaces with which they connect; and,
    (2) Progressive flooding through ducts or tunnels is protected 
against by:
    (i) Retractable inflatable seals to cargo hopper gates; or
    (ii) Guillotine doors in bulkheads in way of the conveyor belt.



PART 173--SPECIAL RULES PERTAINING TO VESSEL USE--Table of Contents




                           Subpart A--General

Sec.
173.001  Applicability.

[[Page 158]]

                           Subpart B--Lifting

173.005  Specific applicability.
173.007  Location of the hook load.
173.010  Definitions.
173.020  Intact stability standards: Counterballasted and non-
          counterballasted vessels.
173.025  Additional intact stability standards: Counterballasted 
          vessels.

                         Subpart C--School Ships

173.050  Specific applicability.
173.051  Public nautical school ships.
173.052  Civilian nautical school ships.
173.053  Sailing school vessels.
173.054  Watertight subdivision and damage stability standards for new 
          sailing school vessels.
173.055  Watertight subdivision and damage stability standards for 
          existing sailing school vessels.
173.056  Collision and other watertight bulkheads.
173.057  Permitted locations for Class I watertight doors.
173.058  Double bottom requirements.
173.059  Penetrations and openings in watertight bulkheads.
173.060  Openings in the side of a vessel below the bulkhead or weather 
          deck.
173.061  Watertight integrity above the margin line.
173.062  Drainage of weather deck.
173.063  Intact stability requirements.

                    Subpart D--Oceanographic Research

173.070  Specific applicability.
173.075  Subdivision requirements.
173.080  Damage stability requirements.
173.085  General subdivision requirements.

                            Subpart E--Towing

173.090  General.
173.095  Towline pull criterion.

    Authority: 43 U.S.C. 1333; 46 U.S.C. 2113, 3306, 5115; E.O. 12234, 
45 FR 58801, 3 CFR, 1980 Comp., p. 277; 49 CFR 1.46.

    Source: CGD 79-023, 48 FR 51045, Nov. 4, 1983, unless otherwise 
noted.



                           Subpart A--General



Sec. 173.001  Applicability.

    Each vessel that is engaged in one of the following activities must 
comply with the applicable provisions of this part:
    (a) Lifting.
    (b) Training (schoolship).
    (c) Oceanographic research.
    (d) Towing.



                           Subpart B--Lifting



Sec. 173.005  Specific applicability.

    This subpart applies to each vessel that--
    (a) Is equipped to lift cargo or other objects; and
    (b) Has a maximum heeling moment due to hook load greater than or 
equal to--

(0.67)(W)(GM)(F/B) in meter-metric tons (foot-long tons), where--
W=displacement of the vessel with the hook load included in metric 
          (long) tons.
GM=metacentric height with hook load included in meters (feet).
F=freeboard to the deck edge amidships in meters (feet).
B=beam in meters (feet).

[CGD 79-023, 48 FR 51045, Nov. 4, 1983, as amended by CGD 85-080, 61 FR 
945, Jan. 10, 1996]



Sec. 173.007  Location of the hook load.

    When doing the calculations required in this subpart, the hook load 
must be considered to be located at the head of the crane.



Sec. 173.010  Definitions.

    As used in this part--
    (a) Hook load means the weight of the object lifted by the crane.
    (b) Crane radius means the distance illustrated in Figure 173.010.
    [GRAPHIC] [TIFF OMITTED] TC01MR91.027
    

[[Page 159]]





Sec. 173.020  Intact stability standards: Counterballasted and non-counterballasted vessels.

    (a) Except as provided in paragraph (c) of this section, each vessel 
that is not equipped to counter-ballast while lifting must be shown by 
design calculations to comply with this section in each condition of 
loading and operation and at each combination of hook load and crane 
radius.
    (b) Each vessel must have a righting arm curve with the following 
characteristics:
    (1) If the vessel operates in protected or partially protected 
waters, the area under the righting arm curve up to the smallest of the 
following angles must be at least 10 foot-degrees (3.05 meter-degrees):
    (i) The angle corresponding to the maximum righting arm.
    (ii) The downflooding angle.
    (iii) 40 degrees.
    (2) If the vessel operates in exposed waters, the area under the 
righting arm curve up to the smallest of the following angles must be at 
least 15 foot-degrees (4.57 meter-degrees):
    (i) The angle corresponding to the maximum righting arm.
    (ii) The downflooding angle.
    (iii) 40 degrees.
    (c) If the vessel's hull proportions fall within all three of the 
following limits, in lieu of complying with paragraph (b) of this 
section, the vessel owner may demonstrate in the presence of the OCMI 
that the vessel will not heel beyond the limits specified in paragraph 
(d) of this section:
    (1) Beam to depth--3.40 to 4.75.
    (2) Length to beam--3.20 to 4.50.
    (3) Draft to depth--0.60 to 0.85.
    (d) For the purpose of paragraph (c) of this section, the following 
limits of heel apply with the vessel at its deepest operating draft:
    (1) Protected and partially protected waters and Great Lakes in 
summer--heel to main deck immersion or bilge emergence, whichever occurs 
first.
    (2) Exposed waters and Great Lakes in winter--heel permitted to one-
half of the freeboard or one-half of the draft, whichever occurs first.

[CGD 79-023, 48 FR 51045, Nov. 4, 1983, as amended by CGD 85-080, 61 FR 
945, Jan. 10, 1996]



Sec. 173.025  Additional intact stability standards: Counterballasted vessels.

    (a) Each vessel equipped to counterballast while lifting must be 
shown by design calculations to be able to withstand the sudden loss of 
the hook load, in each condition of loading and operation and at each 
combination of hook load and crane radius.
    (b) When doing the calculations required by this section, the hook 
load and counterballast heeling arms and vessel righting arms, as 
plotted on graph 173.025, must define areas that satisfy the following 
equation:

Area II  Area I + K

Where--

(1) K=O for operation on protected waters and 7 foot-degrees (2.13 
          meter-degrees) for operation on partially protected and 
          exposed waters.
(2) Areas I and II are shown on graph 173.025.

    (c) Each heeling arm curve must be defined by--

HA=HAO cos (T)

Where--

HA=heeling arm.
HAO=heeling arm at 0 degrees of heel.
T=angle of heel.


[[Page 160]]


[GRAPHIC] [TIFF OMITTED] TC01MR91.028

Where--
GZ(1) is the righting arm curve at the displacement corresponding to the 
          vessel without hooking load.
GZ(2) is the righting arm curve at the displacement corresponding to the 
          vessel with hook load.
HA(1) is the heeling arm curve due to the combined heeling moments of 
          the hook load and the counterballast at the displacement with 
          hook load.
HA(2) is the heeling arm due to the counterballast at the displacement 
          without hook load.
Theta(c) is the angle of static equilibrium due to the combined hook 
          load and counterballast heeling moments.
Theta(f) is the downflooding angle on the counterballasted side of the 
          vessel.

[CGD 79-023, 48 FR 51045, Nov. 4, 1983, as amended by CGD 85-080, 61 FR 
945, Jan. 10, 1996]



                         Subpart C--School Ships



Sec. 173.050  Specific applicability.

    Each nautical school ship, inspected under Subchapter R of this 
chapter, must comply with this subpart.



Sec. 173.051  Public nautical school ships.

    Each public nautical school ship must comply with--
    (a) Section 171.070(a) of this subchapter as a passenger vessel 
carrying 400 or less passengers;
    (b) Section 171.070(e) of this subchapter;
    (c) Section 171.072 of this subchapter; and
    (d) Section 171.073 of this subchapter.

[CGD 79-023, 48 FR 51045, Nov. 4, 1983. Redesignated by CGD 83-005, 51 
FR 924, Jan. 9, 1986]

[[Page 161]]



Sec. 173.052  Civilian nautical school ships.

    Each civilian nautical school ship must comply with part 171 of this 
subchapter as though it were a passenger vessel. In addition to regular 
passengers, for the purpose of complying with part 171, the following 
will also count as passengers;
    (a) A student.
    (b) A cadet.
    (c) An instructor who is not also a member of the crew.

[CGD 79-023, 48 FR 51045, Nov. 4, 1983. Redesignated by CGD 83-005, 51 
FR 924, Jan. 9, 1986]



Sec. 173.053  Sailing school vessels.

    (a) In addition to the requirements in Secs. 173.054 through 
173.063, each sailing school vessel must comply with the provisions of 
subpart A of part 171 of this subchapter.
    (b) In addition to regular passengers, for the purpose of complying 
with Secs. 171.070 through 171.073 and Sec. 171.080, the following will 
also be counted as passengers:
    (1) Sailing school students.
    (2) Sailing school instructors.
    (3) Guests.

[CGD 83-005, 51 FR 924, Jan. 9, 1986]



Sec. 173.054  Watertight subdivision and damage stability standards for new sailing school vessels.

    (a) Each new sailing school vessel which has a mean length greater 
than 75 feet (22.8 meters) or which carries more than 30 persons must 
comply with--
    (1) Section 179.210(a) of this chapter;
    (2) Sections 171.070 through 171.073; and
    (3) Section 171.080 for Type II subdivision and damage stability.
    (b) Each new sailing school vessel which has a mean length of 75 
feet (22.8 meters) or less and carries more than 30 persons must comply 
with either--
    (1) Section 179.210(a) of this chapter and Sec. 179.220 of this 
chapter; or
    (2) Section 171.040(a)(1), Secs. 171.070 through 171.073, and 
Sec. 171.080.
    (c) Each new sailing school vessel which does not carry more than 30 
persons must have a collision bulkhead unless it has a mean length less 
than 40 feet (12.2 meters) and is certificated for protected or 
partially protected waters service only.

[CGD 83-005, 51 FR 924, Jan. 9, 1986, as amended by CGD 85-080, 61 FR 
946, Jan. 10, 1996]



Sec. 173.055  Watertight subdivision and damage stability standards for existing sailing school vessels.

    (a) Except as provided in paragraph (c) of this section, an existing 
sailing school vessel which carries more than 49 persons must be fitted 
with a collision bulkhead and any additional bulkheads necessary to 
provide one compartment subdivision.
    (b) Except as provided in paragraph (c) of this section, an existing 
sailing school vessel which has a mean length greater than 65 feet (19.8 
meters), must be fitted with additional transverse watertight bulkheads 
necessary to provide one compartment subdivision, when the following 
Subdivision Numerals are exceeded:
    (1) For vessels to be operated on Exposed Waters:

       L x N  4000

    (2) For vessels to be operated on Partially Protected Waters:

      L x N  4500

    (3) For vessels to be operated on Protected Waters:

      L x N  5000


where L is the mean length and N is the number of persons on board
    (c) An existing sailing school vessel which is required to meet a 
one compartment subdivision standard and has a mean length of 90 feet 
(27.4 meters) or less may, instead of one compartment subdivision, be 
fitted with a collision bulkhead and sufficient air tankage or other 
internal buoyancy to maintain the fully-loaded vessel afloat with 
positive stability in the flooded condition.
    (d) Except as provided in paragraph (e) of this section, an existing 
sailing school vessel which has a mean length greater than 65 feet (19.8 
meters) must be fitted with a collision bulkhead.
    (e) On an existing sailing school vessel, operating on protected 
waters, which has a mean length of 90 feet (27.4 meters) or less with no 
other requirement for subdivision, the collision bulkhead may be 
omitted.

[[Page 162]]

    (f) An existing sailing school vessel, operating on exposed waters, 
which has a mean length of 65 feet (19.8 meters) or less and is carrying 
more than 15 persons, must be fitted with a collision bulkhead.

[CGD 83-005, 51 FR 924, Jan. 9, 1986]



Sec. 173.056  Collision and other watertight bulkheads.

    (a) Collision bulkheads required by this section must comply with 
the requirements in Sec. 171.085 of this subchapter.
    (b) Each sailing school vessel required to meet paragraph (a) of 
Sec. 173.054 must comply with the machinery space bulkhead requirements 
in Sec. 171.095 of this subchapter.

[CGD 83-005, 51 FR 924, Jan. 9, 1986]



Sec. 173.057  Permitted locations for Class I watertight doors.

    (a) Class I doors are permitted in any location on a sailing school 
vessel which has a mean length of 125 feet (38.1 meters) or less.
    (b) Class I doors fitted in accordance with Sec. 170.270 of this 
subchapter shall additionally be marked in two-inch letters ``RECLOSE 
AFTER USE'', and be provided with a remote position indicator at the 
main navigating station of the vessel.

[CGD 83-005, 51 FR 924, Jan. 9, 1986]



Sec. 173.058  Double bottom requirements.

    Each new sailing school vessel which has a mean length greater than 
165 feet (50.3 meters) and is certificated for exposed water service 
must comply with the double bottom requirements in Secs. 171.105 through 
171.109, inclusive, of this subchapter.

[CGD 83-005, 51 FR 924, Jan. 9, 1986]



Sec. 173.059  Penetrations and openings in watertight bulkheads.

    Penetrations and openings in watertight bulkheads must comply with 
the requirements in subpart E of part 171 of this subchapter or 
Secs. 179.320, 179.330, and 179.340 in subchapter T of this chapter.

[CGD 83-005, 51 FR 924, Jan. 9, 1986, as amended by CGD 85-080, 61 FR 
946, Jan. 10, 1996]



Sec. 173.060  Openings in the side of a vessel below the bulkhead or weather deck.

    (a) Openings in the side of a vessel below the bulkhead or weather 
deck must comply with the requirements in subpart F of part 171 of this 
subchapter or Sec. 179.350 in subchapter T of this chapter.
    (b) In addition to the requirements in paragraph (a) of this 
section, each sailing school vessel which has a mean length greater than 
90 feet must comply with the requirements in Sec. 56.50-95 of Subchapter 
F of this chapter.

[CGD 83-005, 51 FR 924, Jan. 9, 1986, as amended by CGD 85-080, 61 FR 
945, Jan. 10, 1996]



Sec. 173.061  Watertight integrity above the margin line.

    The watertight integrity of each sailing school vessel above the 
margin line must comply with the requirements in subpart G of part 171 
of this subchapter or Sec. 179.360 in subchapter T of this chapter.

[CGD 83-005, 51 FR 925, Jan. 9, 1986, as amended by CGD 85-080, 61 FR 
946, Jan. 10, 1996; 61 FR 20556, May 7, 1996]



Sec. 173.062  Drainage of weather deck.

    The weather deck of each sailing school vessel must be provided with 
drainage in accordance with the requirements in subpart H of part 171 of 
this subchapter or subpart D of part 178 in subchapter T of this 
chapter.

[CGD 83-005, 51 FR 925, Jan. 9, 1986, as amended by CGD 85-080, 61 FR 
946, Jan. 10, 1996]



Sec. 173.063  Intact stability requirements.

    (a) Except as provided in this section, each sailing school vessel 
must meet the intact stability requirements in Secs. 170.170, 171.050, 
and 171.055 of this chapter.
    (b) In applying the requirements in Secs. 170.170 and 171.050 of 
this subchapter, the value of ``T'' is equal to the angle of heel at 
which the deck edge is immersed or \1/3\ of the downflooding angle, 
whichever is less.
    (c) In applying the requirements of Sec. 171.055(d) (1) and (2) of 
this subchapter--
    (1) The value ``X'' is equal to 0.6 long tons/square foot (9.8 
metric tons/square meter).

[[Page 163]]

    (2) For a vessel in service on protected or partially protected 
waters, values ``Y'' and ``Z'' are determined from graphs 173.063 (a) 
and (b) and multiplied by the multiplier in graph 173.063(e).
    (3) For a vessel in service on exposed waters, ``Y'' and ``Z'' are 
determined from graphs 173.063 (c) and (d) and multiplied by the 
multiplier from graph 173.063(e).
    (4) To convert required numerals to units of ``metric tons/square 
meter,'' multiply by 10.94.
    (d) Each vessel of the open boat type that is required to comply 
with the requirements in Secs. 178.300 and 178.310 of this chapter, may 
instead comply with the requirements in paragraph (e) of this section.
    (e) In lieu of complying with the requirements of paragraph (b) of 
this section, an open boat may be provided with sufficient air tankage 
or other internal buoyancy to maintain the vessel afloat when the vessel 
is completely flooded or capsized. If foam is used to comply with this 
paragraph, it must be installed in accordance with the requirements in 
Sec. 170.245 of this subchapter.
    (f) A sailing school catamaran must meet the intact stability 
requirements in Sec. 171.057.

[[Page 164]]

[GRAPHIC] [TIFF OMITTED] TC01MR91.029


[[Page 165]]


[GRAPHIC] [TIFF OMITTED] TC01MR91.030


[[Page 166]]


[GRAPHIC] [TIFF OMITTED] TC01MR91.031

[CGD 83-005, 51 FR 925, Jan. 9, 1986, as amended by CGD 85-080, 61 FR 
946, Jan. 10, 1996]

[[Page 167]]



                    Subpart D--Oceanographic Research



Sec. 173.070  Specific applicability.

    Each oceanographic vessel, inspected under Subchapter U of this 
chapter, except a barge that is less than 300 gross tons, must comply 
with this subpart.



Sec. 173.075  Subdivision requirements.

    (a) Each oceanographic vessel must comply with the subdivision 
requirements in Secs. 171.070, 171.072, and 171.073 of this subchapter 
as if it were a passenger vessel carrying 400 or less passengers.
    (b) Each vessel must have a collision bulkhead.



Sec. 173.080  Damage stability requirements.

    Each oceanographic vessel must comply with Sec. 171.080 of this 
subchapter as a category Z vessel.



Sec. 173.085  General subdivision requirements.

    Each oceanographic vessel must comply with the following:
    (a) Section 171.085(c)(1), (d) and (g) of this subchapter.
    (b) Section 171.105 (a) through (g) of this subchapter except that a 
reduction or elimination of the required inner bottom is allowed if--
    (1) The inner bottom would interfere with the mission of the vessel; 
and
    (2) As a result of other design features, the ability of the vessel 
to withstand side and bottom damage is not reduced.
    (c) Section 171.106 of this subchapter.
    (d) Section 171.108 of this subchapter.
    (e) Section 171.109 of this subchapter.
    (f) Section 171.111 of this subchapter.
    (g) Section 171.113 of this subchapter.
    (h) The collision bulkhead must not be penetrated by more than one 
pipe that carries liquid to or from the forepeak tank. This pipe must 
have a screwdown valve that is--
    (1) Operative from above the bulkhead deck; and
    (2) Attached to the bulkhead inside the forepeak tank.
    (i) Section 171.116 (b), (c), and (e) of this subchapter.
    (j) Section 171.117(c) of this subchapter.
    (k) Each port light in a space located below the freeboard deck, as 
defined in Sec. 42.13-15(i) of this chapter, or in a space within an 
enclosed superstructure must be fitted with a hinged inside dead cover.
    (l) Section 171.118 (b) and (c) of this subchapter.
    (m) Section 171.122 (a) through (d) and (f) of this subchapter.
    (n) Section 171.135 of this subchapter.
    (o) A ventilation duct or forced draft duct may not penetrate a main 
transverse watertight bulkhead unless--
    (1) The penetration is watertight;
    (2) The penetration is located as near the vessel's centerline as 
possible; and
    (3) The bottom of the duct is not more than--
    (i) 18 inches (45.7 cm) below the bulkhead deck; and
    (ii) 4 feet (121.9 cm) above the final waterline after damage 
determined in Sec. 173.080.



                            Subpart E--Towing



Sec. 173.090  General.

    This subpart applies to each vessel that is equipped for towing.



Sec. 173.095  Towline pull criterion.

    (a) In each towing condition, each vessel must be shown by design 
calculations to meet the requirements of either paragraph (b) or (c) of 
this section.
    (b) The vessel's metacentric height (GM) must be equal to or greater 
than the following:
[GRAPHIC] [TIFF OMITTED] TC01MR91.032

where--
N=number of propellers.
P=shaft power per shaft in horsepower (kilowatts).
D=propeller diameter in feet (meters).
s=that fraction of the propeller circle cylinder which would be 
          intercepted by the rudder if turned to 45 degrees from the 
          vessel's centerline.
h=vertical distance from propeller shaft centerline at rudder to towing 
          bitts in feet (meters).
[Delta]=displacement in long tons (metric tons).
f=minimum freeboard along the length of the vessel in feet (meters).
B=molded beam in feet (meters).
K=38 in English units.

[[Page 168]]

K=13.93 in metric units.
    (c) When a heeling arm curve, calculated in accordance with 
paragraph (d) of this section, is plotted against the vessel's righting 
arm curve--
    (1) Equilibrium must be reached before the downflooding angle; and
    (2) The residual righting energy must be at least 2 foot-degrees 
(.61 meter-degrees) up to the smallest of the following angles:
    (i) The angle of maximum righting arm.
    (ii) The downflooding angle.
    (iii) 40 degrees.
    (d) The heeling arm curve specified in paragraph (c) of this section 
must be calculated by the following equation:
[GRAPHIC] [TIFF OMITTED] TC01MR91.033

where--
HA=heeling arm.
[thetas]=angle of heel.
N, P, D, K, s, h, and [Delta] are as defined in paragraph (b) of this 
          section.

    (e) For the purpose of this section, downflooding angle means the 
static angle from the intersection of the vessel's centerline and 
waterline in calm water to the first opening that does not close 
watertight automatically.
    (f) For the purpose of this section, at each angle of heel, a 
vessel's righting arm may be calculated considering either--
    (1) The vessel is permitted to trim free until the trimming moment 
is zero; or
    (2) The vessel does not trim as it heels.7



PART 174--SPECIAL RULES PERTAINING TO SPECIFIC VESSEL TYPES--Table of Contents




                           Subpart A--General

Sec.
174.005  Applicability.
174.007  Incorporation by reference.

        Subpart B--Special Rules Pertaining to Deck Cargo Barges

174.010  Specific applicability.
174.015  Intact stability.
174.020  Alternate intact stability criterion.

  Subpart C--Special Rules Pertaining to Mobile Offshore Drilling Units

174.030  Specific applicability.
174.035  Definitions.
174.040  Stability requirements: general.
174.045  Intact stability requirements.
174.050  Stability on bottom.
174.055  Calculation of wind heeling moment (Hm).
174.065  Damage stability requirements.
174.070  General damage stability assumptions.
174.075  Compartments assumed flooded: general.
174.080  Flooding on self-elevating and surface type units.
174.085  Flooding on column stabilized units.
174.090  Permeability of spaces.
174.100  Appliances for watertight and weathertight integrity.

Subpart D [Reserved]

      Subpart E--Special Rules Pertaining to Tugboats and Towboats

174.140  Specific applicability.
174.145  Intact stability requirements.

Subpart F [Reserved]

     Subpart G--Special Rules Pertaining to Offshore Supply Vessels

174.180  Applicability.
174.185  Intact stability.
174.190  Collision bulkhead.
174.195  Bulkheads in machinery spaces.
174.200  Damaged stability in machinery spaces for all OSVs.
174.205  Additional damaged stability for OSVs carrying more than 16 
          offshore workers.
174.207  Damaged stability criteria.
174.210  Watertight doors in watertight bulkheads.
174.215  Drainage of weather deck.
174.220  Hatches and coamings.
174.225  Hull penetrations and shell connections.

            Subpart H--Special Rules Pertaining to Liftboats

174.240  Applicability.
174.245  General.
174.250  Unrestricted service.
174.255  Restricted service.
174.260  Freeboard.

      Subpart I--Hopper Dredges With Working Freeboard Assignments

174.300  Specific applicability.
174.305  Definitions.

[[Page 169]]

                              Calculations

174.310  General.
174.315  Extent and character of damage.
174.320  Damage survival.
174.325  Equalization.
174.330  Jettisoning of spoil.

                                 Design

174.335  Watertight doors.
174.340  Collision bulkhead.

         Subpart J--Special Rules Pertaining to Dry Cargo Ships

174.350  Specific applicability.
174.355  Definitions.
174.360  Calculations.

    Authority: 42 U.S.C. 9118, 9119, 9153; 43 U.S.C. 1333; 46 U.S.C. 
3306, 3703; E.O. 12234, 45 FR 58801, 3 CFR, 1980 Comp., p. 277; 49 CFR 
1.46.

    Source: CGD 79-023, 48 FR 51048, Nov. 4, 1983, unless otherwise 
noted.



                           Subpart A--General



Sec. 174.005  Applicability.

    Each of the following vessels must comply with the applicable 
provisions of this part:
    (a) Deck cargo barge.
    (b) Mobile offshore drilling unit (MODU) inspected under subchapter 
IA of this chapter.
    (c) Tugboat and towboat inspected under subchapter I of this 
chapter.
    (d) Self-propelled hopper dredge having an assigned working 
freeboard.
    (e) Oceangoing ships of 500 gross tons or over, as calculated by the 
International Convention on Tonnage Measurement of Ships, 1969, designed 
primarily for the carriage of dry cargoes, including roll-on/roll-off 
ships.
    (f) Offshore supply vessel inspected under subchapter L of this 
chapter.
    (g) Liftboat inspected under subchapter L of this chapter.

[CGD 95-012, 60 FR 48052, Sept. 18, 1995; 60 FR 50120, Sept. 28, 1995, 
as amended by CGD 82-004 and CGD 86-074, 60 FR 57671, Nov. 16, 1995; CGD 
82-004 and CGD 86-074, 62 FR 49353, Sept. 19, 1997]



Sec. 174.007  Incorporation by reference.

    (a) Certain material is incorporated by reference into this part 
with the approval of the Director of the Federal Register in accordance 
with 5 U.S.C. 552(a). To enforce any edition other than that specified 
in paragraph (b) of this section, the Coast Guard must publish notice of 
change in the Federal Register and make the material available to the 
public. All approved material is on file at the Office of the Federal 
Register, 800 North Capitol Street, NW., Suite 700, Washington, DC, and 
at the U.S. Coast Guard, Office of Design and Engineering Standards (G-
MSE), 2100 Second Street SW., Washington, DC 20593-0001 and is available 
from the sources indicated in paragraph (b) of this section.
    (b) The material approved for incorporation by reference in this 
part and the sections affected are:

            American Society for Testing and Materials (ASTM)

100 Barr Harbor Drive, West Conshohocken, PA 19428-2959.

ASTM F 1196-94, Standard Specification for Sliding Watertight Door 
Assemblies--174.100
ASTM F 1197-89 (1994), Standard Specification for Sliding Watertight 
Door Control Systems--174.100

[CGD 88-032, 56 FR 35828, July 29, 1991, as amended by CGD 95-072, 60 FR 
50468, Sept. 29, 1995; CGD 96-041, 61 FR 50734, Sept. 27, 1996; CGD 97-
057, 62 FR 51049, Sept. 30, 1997; USCG-1999-5151, 64 FR 67186, Dec. 1, 
1999]



        Subpart B--Special Rules Pertaining to Deck Cargo Barges



Sec. 174.010  Specific applicability.

    Each barge that carries cargo above the weather deck must comply 
with this subpart.



Sec. 174.015  Intact stability.

    (a) Except as provided in Sec. 174.020, in each condition of loading 
and operation, each barge must be shown by design calculations to have 
an area under the righting arm curve up to the angle of maximum righting 
arm, the downflooding angle, or 40 degrees, whichever angle is smallest, 
equal to or greater than--
    (1) 15 foot-degrees (4.57 meter-degrees) for ocean and Great Lakes 
winter service; and
    (2) 10 foot-degrees (3.05 meter-degrees) for lakes, bays, sounds, 
and Great Lakes summer service.
    (b) For the purpose of this section, downflooding angle means the 
static

[[Page 170]]

angle from the intersection of the vessel's centerline and waterline in 
calm water to the first opening that does not close watertight 
automatically.



Sec. 174.020  Alternate intact stability criterion.

    A barge need not comply with Sec. 174.015 and subparts C and E of 
part 170 of this chapter if it has the following characteristics:
    (a) The weather deck is watertight.
    (b) The barge's hull proportions fall within any one of the ratios 
in categories (A) through (D) in Table 174.020.
    (c) The maximum cargo height is 30 feet (9.25 meters) or a value 
equal to the depth of the barge amidships, whichever is less.

                              Table 174.020
------------------------------------------------------------------------
            Category               Beam/depth ratio    Draft/depth ratio
------------------------------------------------------------------------
A..............................  3.00 to 3.74.......  Equal to or less
                                                       than 0.70.
B..............................  3.75 to 3.99.......  Equal to or less
                                                       than 0.72.
C..............................  4.00 to 4.49.......  Equal to or less
                                                       than 0.76.
D..............................  4,50 to 6.00.......  Equal to or less
                                                       than 0.80.
------------------------------------------------------------------------



  Subpart C--Special Rules Pertaining to Mobile Offshore Drilling Units



Sec. 174.030  Specific applicability.

    Each mobile offshore drilling unit (MODU) inspected under Subchapter 
IA of this chapter must comply with this subpart.



Sec. 174.035  Definitions.

    (a) For the purpose of this subpart the following terms have the 
same definitions as given in Subchapter IA of this chapter:
    (1) Column stabilized unit.
    (2) Mobile offshore drilling unit.
    (3) Self-elevating unit.
    (4) Surface type unit.
    (b) For the purpose of this subpart--
    (1) Downflooding means the entry of seawater through any opening 
that cannot be rapidly closed watertight, into the hull, superstructure, 
or columns of an undamaged unit due to heel, trim, or submergence of the 
unit.
    (2) Downflooding angle means the static angle from the intersection 
of the unit's centerline and waterline in calm water to the first 
opening through which downflooding can occur when subjected to a wind 
heeling moment (Hm) calculated in accordance with Sec. 174.055.
    (3) Normal operating condition means a condition of a unit when 
loaded or arranged for drilling, field transit, or ocean transit.
    (4) Severe storm condition means a condition of a unit when loaded 
or arranged to withstand the passage of a severe storm.



Sec. 174.040  Stability requirements: general.

    Each unit must be designed to have at least 2 inches (50mm) of 
positive metacentric height in the upright equilibrium position for the 
full range of drafts, whether at the operating draft for navigation, 
towing, or drilling afloat, or at a temporary draft when changing 
drafts.



Sec. 174.045  Intact stability requirements.

    (a) Each unit must be designed so that the wind heeling moments (Hm) 
and righting moments calculated for each of its normal operating 
conditions and severe storm conditions, when plotted on GRAPH 174.045, 
define areas that satisfy the equation:

Area (A) [ge] (K) X (Area (B))
where--
(1) K=1.4 except that if the unit is a column stabilized unit K=1.3;
(2) Area (A) is the area on GRAPH 174.045 under the righting moment 
          curve between 0 and the second intercept angle or the angle of 
          heel at which downflooding would occur, whichever angle is 
          less; and
(3) Area (B) is the area on GRAPH 174.045 under the wind heeling moment 
          curve between 0 and the second intercept angle or the angle of 
          heel at which downflooding of the unit would occur whichever 
          angle is less.

    (b) Each righting moment on graph Sec. 174.045 must be positive for 
all angles greater than 0 and less than the second intercept angle.
    (c) For the purposes of this section, openings fitted with the 
weathertight closing appliances specified in Sec. 174.100(b) are not 
considered as openings through which downflooding could occur if they 
can be rapidly closed and would not be submerged below the

[[Page 171]]

units' waterline prior to the first intercept angle, except that 
ventilation intakes and outlets for machinery spaces, crew spaces, and 
other spaces where ventilation is normally required are considered as 
openings through which downflooding could occur regardless of location.
    (d) Each unit must be designed so that it can be changed from each 
of its normal operating conditions to a severe storm condition within a 
minimum period of time consistent with the operating manual required in 
Sec. 109.121 of this chapter.
[GRAPHIC] [TIFF OMITTED] TC01MR91.034


[CGD 79-023, 48 FR 51048, Nov. 4, 1983, as amended by CGD 83-071, 52 FR 
6979, Mar. 6, 1987]



Sec. 174.050  Stability on bottom.

    Each bottom bearing unit must be designed so that, while supported 
on the sea bottom with footings or a mat, it continually exerts a 
downward force on each footing or the mat when subjected to the forces 
of wave and current and to wind blowing at the velocities described in 
Sec. 174.055(b)(3).



Sec. 174.055  Calculation of wind heeling moment (Hm).

    (a) The wind heeling moment (Hm) of a unit in a given normal 
operating condition or severe storm condition is the

[[Page 172]]

sum of the individual wind heeling moments (H) calculated for each of 
the exposed surfaces on the unit; i.e., Hm=[Sigma] H.
    (b) Each wind heeling moment (H) must be calculated using the 
equation:

H=k(v)2(Ch)(Cs)(A)(h)
where--

(1) H=wind heeling moment for an exposed surface on the unit in foot-
          pounds (kilogram-meters);
(2) k=0.00338 lb./(ft.2-knots2) (0.0623 (kg-
          sec2)/m4);
(3) v=wind velocity of--
(i) 70 knots (36 meters per second) for normal operating conditions.
(ii) 100 knots (51.5 meters per second) for severe storm conditions.
(iii) 50 knots (25.8 meters per second) for damage conditions.
(4) A=projected area in square feet (squrae meters) of an exposed 
          surface on the unit;
(5) Ch=height coefficient for ``A'' from Table 174.055(a);
(6) Cs=shape coefficient for ``A'' from Table 174.055(b); and
(7) h=the vertical distance in feet (meters) from the center of lateral 
          resistance of the underwater hull to the center of wind 
          pressure on ``A''.

    (c) When calculating ``A'' in the equation described in paragraph 
(b) of this section--
    (1) The projected area of each column or leg; if the unit has 
columns or legs, must not include shielding allowances;
    (2) Each area exposed as a result of heel must be included;
    (3) The projected area of a cluster of deck houses may be used 
instead of the projected area of each individual deck house in the 
cluster; and
    (4) The projected area of open truss work may be calculated by 
taking 30% of the projected areas of both the front and back sides of 
the open truss work rather than by determining the projected area of 
each structural member of the truss work.

                                           Table 174.055(a)--Ch Values
----------------------------------------------------------------------------------------------------------------
                           Feet                                                Meters
---------------------------------------------------------------------------------------------------------   Ch.
                Over                     Not exceeding               Over              Not exceeding
----------------------------------------------------------------------------------------------------------------
                 0                             50                    0.0                    15.3            1.00
                 50                           100                    15.3                   30.5            1.10
                100                           150                    30.5                   46.0            1.20
                150                           200                    46.0                   61.0            1.30
                200                           250                    61.0                   76.0            1.37
                250                           300                    76.0                   91.5            1.43
                300                           350                    91.5                  106.5            1.48
                350                           400                   106.5            2.0................    1.52
                400                           450                   122.0                  137.0            1.56
                450                           500                   137.0                  152.5            1.60
                500                           550                   152.5                  167.5            1.63
                550                           600                   167.5                  183.0            1.67
                600                           650                   183.0                  198.0            1.70
                650                           700                   198.0                  213.5            1.72
                700                           750                   213.5                  228.5            1.75
                750                           800                   228.5                  244.0            1.77
                800                           850                   244.0                  256.0            1.79
Above 850..........................                               Above 256                                 1.80
----------------------------------------------------------------------------------------------------------------
Note: The ``Ch'' value in this table, used in the equation described in section Sec.  174.055(b), corresponds to
  the value of the vertical distance in feet (meters) from the water surface at the design draft of the unit to
  the center of area of the ``A'' value used in the equation.


                       Table 174.055(b)--Cs Values
------------------------------------------------------------------------
                              Shape                                 Cs.
------------------------------------------------------------------------
Cylindrical shapes...............................................    0.5
Hull (surface type)..............................................    1.0
Deckhouse........................................................    1.0
Cluster of deckhouses............................................    1.1
Isolated structural shapes (cranes, angles, channels, beams,         1.5
 etc.)...........................................................
Under deck areas (smooth surfaces)...............................    1.0
Under deck areas (exposed beams and girders).....................    1.3
Rig derrick (each face and open truss works).....................   1.25
------------------------------------------------------------------------
Note: The ``Cs'' value in this table, used in the equation described in
  Sec.  174.055(b), corresponds to the shape of the projected ``A'' in
  the equation.



Sec. 174.065  Damage stability requirements.

    (a) Each unit must be designed so that, while in each of its normal 
operating conditions and severe storm conditions, its final equilibrium 
waterline would remain below the lowest edge of any opening through 
which additional flooding could occur if the unit were subjected 
simultaneously to--
    (1) Damage causing flooding described in Secs. 174.075 through 
174.085; and
    (2) A wind heeling moment calculated in accordance with 
Sec. 174.055(b) using a wind velocity of 50 knots (25.8 meters per 
second).
    (b) Each unit must have a means to close off each pipe, ventilation 
system, and trunk in each compartment described in Sec. 174.080 or 
Sec. 174.085 if any portion of the pipe, ventilation system, or trunk is 
within 5 feet (1.5 meters) of the hull.

[[Page 173]]



174.070  General damage stability assumptions.

    For the purpose of determining compliance with Sec. 174.065, the 
assumptions are made that during flooding and the resulting change in 
the unit's waterline--
    (a) The unit is not anchored or moored; and
    (b) No compartment on the unit is ballasted or pumped out to 
compensate for the flooding described in Secs. 174.075 through 174.085.



Sec. 174.075  Compartments assumed flooded: general.

    The individual flooding of each of the compartments described in 
Secs. 174.080 and 174.085 must be assumed for the purpose of determining 
compliance with Sec. 174.065 (a). Simultaneous flooding of more than one 
compartment must be assumed only when indicated in Secs. 174.080 and 
174.085.



Sec. 174.080  Flooding on self-elevating and surface type units.

    (a) On a surface type unit or self-elevating unit, all compartments 
within 5 feet (1.5 meters) of the hull of the unit between two adjacent 
main watertight bulkheads, the bottom shell, and the uppermost 
continuous deck or first superstructure deck where superstructures are 
fitted must be assumed to be subject to simultaneous flooding.
    (b) On the mat of a self-elevating unit, all compartments of the mat 
must be assumed to be subject to individual flooding.



Sec. 174.085  Flooding on column stabilized units.

    (a) Watertight compartments that are outboard of, or traversed by, a 
plane which connects the vertical centerlines of the columns on the 
periphery of the unit, and within 5 feet (1.5 meters) of an outer 
surface of a column or footing on the periphery of the unit, must be 
assumed to be subject to flooding as follows:
    (1) When a column is subdivided into watertight compartments by 
horizontal watertight flats, all compartments in the column within 5 
feet (1.5 meters) of the unit's waterline before damage causing flooding 
must be assumed to be subject to simultaneous flooding.
    (2) When a column is subdivided into watertight compartments by 
vertical watertight bulkheads, each two adjacent compartments must be 
assumed subject to simultaneous flooding if the distance between the 
vertical watertight bulkheads, measured at the column periphery, is 
equal to or less than one-eighth of the column perimeter at the draft 
under consideration.
    (3) When a column is subdivided into watertight compartments by 
horizontal watertight flats and vertical watertight bulkheads, those 
compartments that are within the bounds described in paragraph (a)(2) of 
this section and within 5 feet (1.5 meters) of the unit's waterline 
before damage causing flooding must be assumed to be subject to 
simultaneous flooding.
    (b) Each compartment in a footing must be assumed to be subject to 
individual flooding when any part of the compartment is within 5 feet 
(1.5 meters) of the unit's waterline before damage causing flooding.



Sec. 174.090  Permeability of spaces.

    When doing the calculations required in Sec. 174.065--
    (a) The permeability of a floodable space, other than a machinery 
space, must be as listed in Table 174.090; and
    (b) Calculations in which a machinery space is treated as a 
floodable space must be based on an assumed machinery space permeability 
of 85%, unless the use of an assumed permeability of less than 85% is 
justified in detail.

                       Table 174.090--Permeability
------------------------------------------------------------------------
              Spaces and tanks                  Permeability (percent)
------------------------------------------------------------------------
Storeroom spaces...........................  60.
Accommodation spaces.......................  95.
Voids......................................  95.
Consumable liquid tanks....................  95 or 0.\1\
Other liquid tanks.........................  95 or 0.\2\
------------------------------------------------------------------------
\1\ Whichever results in the more disabling condition.
\2\ If tanks are partially filled, the permeability must be determined
  from the actual density and amount of liquid carried.



Sec. 174.100  Appliances for watertight and weathertight integrity.

    (a) Appliances to insure watertight integrity include watertight 
doors, hatches, scuttles, bolted manhole covers, or other watertight 
closures for

[[Page 174]]

openings in watertight decks and bulkheads.
    (b) Appliances to insure weathertight integrity include weathertight 
doors and hatches, closures for air pipes, ventilators, ventilation 
intakes and outlets, and closures for other openings in deckhouses and 
superstructures.
    (c) Each internal opening equipped with appliances to insure 
watertight integrity that is used intermittently during operation of the 
unit while afloat must meet the following:
    (1) Each door, hatch, and scuttle must--
    (i) Be remotely controlled from a normally manned control station, 
and be operable locally from both sides of the bulkhead; or
    (ii) If there is no means of remote control there must be an alarm 
system that signals whether the appliance is open or closed both locally 
at each appliance and in a normally manned control station.
    (2) Each closing appliance must remain watertight under the design 
water pressure of the watertight boundary of which it is a part.
    (d) Each external opening fitted with an appliance to insure 
weathertight integrity must be located so that it would not be submerged 
below the final equilibrium waterline if the unit is subjected 
simultaneously to--
    (1) Damage causing flooding described in Secs. 174.075 through 
174.085; and
    (2) A wind heeling moment calculated in accordance with Sec. 174.055 
using a wind velocity of 50 knots (25.8 meters per second).
    (e) If a unit is equipped with sliding watertight doors, each 
sliding watertight door must--
    (1) Be designed, constructed, tested, and marked in accordance with 
ASTM F 1196 (incorporated by reference, see Sec. 174.007);
    (2) Have controls in accordance with ASTM F 1197 (incorporated by 
reference, see Sec. 174.007), except that a remote manual means of 
closure, as specified in paragraphs 7.1 and 7.5.1, and a remote 
mechanical indicator, as specified in paragraph 7.5.2, will not be 
required; and
    (3) If installed in a subdivision bulkhead, meet Supplemental 
Requirements Nos. S1 and S3 of ASTM F 1196 (incorporated by reference, 
see Sec. 174.007), unless the watertight doors are built in accordance 
with plans previously approved by the Coast Guard, in which case, only 
Supplemental Requirements Nos. S1 and S3.1.4 of ASTM F 1196 
(incorporated by reference, see Sec. 174.007) must be met. In either 
case, control systems for watertight doors must have power supplies, 
power sources, installation tests and inspection, and additional remote 
operating consoles in accordance with Supplemental Requirements Nos. S1 
through S4 of ASTM F 1197 (incorporated by reference, see Sec. 174.007).
    (f) Installations of sliding watertight door assemblies must be in 
accordance with the following:
    (1) Before a sliding watertight door assembly is installed in a 
vessel, the bulkhead in the vicinity of the door opening must be 
stiffened. Such bulkhead stiffeners, or deck reinforcement where flush 
deck door openings are desired, must not be less than 6 inches nor more 
than 12 inches from the door frame so that an unstiffened diaphragm of 
bulkhead plating 6 to 12 inches wide is provided completely around the 
door frame. Where such limits cannot be maintained, alternative 
installations will be considered by the Marine Safety Center. In 
determining the scantlings of these bulkhead stiffeners, the door frame 
should not be considered as contributing to the strength of the 
bulkhead. Provision must also be made to adequately support the thrust 
bearings and other equipment that may be mounted on the bulkhead or 
deck.
    (2) Sliding watertight door frames must be either bolted or welded 
watertight to the bulkhead.
    (i) If bolted, a suitable thin heat and fire resistant gasket or 
suitable compound must be used between the bulkhead and the frame for 
watertightness. The bulkhead plating shall be worked to a plane surface 
in way of the frame when mounting.
    (ii) If welded, caution must be exercised in the welding process so 
that the door frame is not distorted.

[CGD 79-023, 48 FR 51048, Nov. 4, 1983, as amended by CGD 88-032, 56 FR 
35828, July 29, 1991; USCG-2000-7790, 65 FR 58464, Sept. 29, 2000]

[[Page 175]]

Subpart D [Reserved]



      Subpart E--Special Rules Pertaining to Tugboats and Towboats



Sec. 174.140  Specific applicability.

    Each tugboat and towboat inspected under subchapter I of this 
chapter must comply with this subpart.



Sec. 174.145  Intact stability requirements.

    (a) In each condition of loading and operation, each vessel must be 
shown by design calculations to meet the requirements of paragraphs (b) 
through (e) of this section.
    (b) The area under each righting arm curve must be at least 16.9 
foot-degrees (5.15 meter-degrees) up to the smallest of the following 
angles:
    (1) The angle of maximum righting arm.
    (2) The downflooding angle.
    (3) 40 degrees.
    (c) The area under each righting arm curve must be at least 5.6 
foot-degrees (1.72 meter-degrees) between the angles of 30 degrees and 
40 degrees, or between 30 degrees and the downflooding angle if this 
angle is less than 40 degrees.
    (d) The maximum righting arm shall occur at a heel of at least 25 
degrees.
    (e) The righting arm curve must be positive to at least 60 degrees.
    (f) For the purpose of this section, at each angle of heel, a 
vessel's righting arm may be calculated considering either--
    (1) The vessel is permitted to trim free until the trimming moment 
is zero; or
    (2) The vessel does not trim as it heels.

Subpart F [Reserved]



     Subpart G--Special Rules Pertaining to Offshore Supply Vessels

    Source: CGD 82-004 and CGD 86-074, 62 FR 49353, Sept. 19, 1997, 
unless otherwise noted.



Sec. 174.180  Applicability.

    Each offshore supply vessel (OSV), except a liftboat inspected under 
subchapter L of this chapter, must comply with this subpart.



Sec. 174.185  Intact stability.

    (a) Each OSV must be shown by design calculations to meet, under 
each condition of loading and operation, the minimal requirements for 
metacentric height (GM) in Sec. 170.170 of this chapter, and in either 
Sec. 170.173 of this chapter or paragraphs (b) through (e) of this 
section.
    (b) The area under each righting arm curve must be at least 0.08 
meter-radians (15 foot-degrees) up to the smallest of the following 
angles:
    (1) The angle of maximum righting arm;
    (2) The downflooding angle; or
    (3) 40 degrees.
    (c) The downflooding angle must not be less than 20 degrees.
    (d) The righting arm curve must be positive to at least 40 degrees.
    (e) The freeboard at the stern must be equal to the freeboard 
calculated to comply with subchapter E of this chapter or to the value 
taken from Table 174.185, whichever is less.
    (f) For paragraphs (b) and (d) of this section, at each angle of 
heel an OSV's righting arm may be calculated considering either--
    (1) The vessel is permitted to trim free until the trimming moment 
is zero; or
    (2) The vessel does not trim as it heels.
    (g) For the purpose of paragraphs (b) and (d) of this section, the 
method of calculating righting arms chosen must be the same for all 
calculations.

             Table 174.185.--Minimal Freeboard at the Stern
------------------------------------------------------------------------
                                                              Freeboard
                                                             at stern in
                    LBP in meters (feet)                     millimeters
                                                               (inches)
------------------------------------------------------------------------
Less than 20 (65)..........................................     300 (12)
20 (65) but less than 30 (100).............................     380 (15)
30 (100) but less than 40 (130)............................     400 (18)
40 (130) but less than 50 (155)............................     500 (20)
50 (155) but less than 60 (190)............................     560 (22)
60 (190) but less than 70 (230)............................     610 (24)
70 (230) and greater.......................................     660 (26)
------------------------------------------------------------------------



Sec. 174.190  Collision bulkhead.

    (a) Each OSV must have a collision bulkhead in compliance with

[[Page 176]]

Sec. Sec. 171.085(c)(1), (d), (e)(2), and (f) of this chapter.
    (b) Penetration of the collision bulkhead by piping must be minimal, 
and, where fitted, piping must meet the requirements of Secs. 56.50-
1(b)(1) and (c) and 128.230 of this chapter.



Sec. 174.195  Bulkheads in machinery spaces.

    (a) The bulkhead in each machinery space of each OSV must be 
watertight to the bulkhead deck.
    (b) Each penetration of, and each opening in, a bulkhead in a 
machinery space must--
    (1) Be kept as high and as far inboard as practicable; and
    (2) Except as provided by Sec. 174.210 of this subpart and by 
paragraph (c) of this section, have means to make it watertight.
    (c) No penetration of a bulkhead in a machinery space by a 
ventilation duct need have means to make the bulkhead watertight if--
    (1) Every part of the duct is at least 760 millimeter (30 inches) 
from the side of the OSV; and
    (2) The duct is continuously watertight from the penetration to the 
main deck.
    (d) Each penetration of a bulkhead in a machinery space by piping 
must meet the design requirements for material and pressure in 
subchapter F of this chapter.



Sec. 174.200  Damaged stability in machinery spaces for all OSVs.

    Each OSV must be shown by design calculations to comply, under each 
afloat condition of loading and operation, with Sec. 174.207 of this 
subpart in case of damage between any two watertight bulkheads in each 
machinery space.



Sec. 174.205  Additional damaged stability for OSVs carrying more than 16 offshore workers.

    (a) Calculations. Each OSV carrying more than 16 offshore workers 
must be shown by design calculations to comply, under each afloat 
condition of loading and operation, with Sec. 174.207 of this subpart in 
case of the damage specified by paragraph (b) of this section.
    (b) Character of damage. For paragraph (a) of this section, design 
calculations must show that the OSV can survive damage at any place 
other than either the collision bulkhead or a transverse watertight 
bulkhead unless--
    (1) The transverse watertight bulkhead is closer than the 
longitudinal extent of damage, specified by Table 174.207(a), to the 
adjacent transverse watertight bulkhead; or
    (2) The transverse watertight bulkhead has a step or a recess, which 
must be assumed damaged, if it is both more than 3 meters (10 feet) in 
length and located within the transverse extent of damage specified by 
Table 174.207(a) of this section.



Sec. 174.207  Damaged stability criteria.

    (a) Extent of damage. Damage must consist of penetrations having the 
dimensions specified by table 174.207(a) of this section, except that, 
if the most disabling penetrations are smaller than the penetrations 
specified by the table, damage must consist of the smaller penetrations.
    (b) Permeability of spaces. The permeability of a floodable space 
must be as specified by Table 174.207(b) of this section.
    (c) Survival conditions. An OSV is presumed to survive assumed 
damage if it meets the following conditions in the final stage of 
flooding:
    (1) Final waterline. The final waterline, in the final stage of 
sinkage, heel, and trim, must be below the lower edge of an opening 
through which progressive flooding may take place, such as an air pipe, 
a tonnage opening, an opening closed by a weathertight door or hatch-
cover, or a tank vent fitted with a ball check-valve. This opening does 
not include an opening closed by a--
    (i) Watertight manhole-cover;
    (ii) Flush scuttle;
    (iii) Small hatch-cover for a watertight cargo-tank that maintains 
the high integrity of the deck;
    (iv) Watertight door in compliance with Sec. 174.210 of this 
subpart; or
    (v) Side scuttle of the non-opening type.
    (2) Angle of heel. The angle of heel must not exceed 15 degrees.

[[Page 177]]

    (3) Range of stability. Through an angle of 20 degrees beyond its 
position of equilibrium after flooding, an OSV must meet the following 
conditions:
    (i) The righting arm curve must be positive.
    (ii) The righting arm must be at least 100 millimeters (4 inches).
    (iii) Each submerged opening must be weathertight. (A tank vent 
fitted with a ball check-valve is weathertight.)
    (4) Progressive flooding. Piping, ducts, or tunnels within the 
assumed extent of damage must be either--
    (i) Equipped with arrangements, such as stop check-valves, to 
prevent progressive flooding of the spaces with which they connect; or
    (ii) Assumed in the calculations required by paragraph (a) of this 
section to permit progressive flooding of the spaces with which they 
connect.
    (d) Buoyancy of superstructure. For paragraph (a) of this section, 
the buoyancy of any superstructure directly above the side damage must 
be considered in the most unfavorable condition.

                   Table 174.207(a)--Extent of Damage
------------------------------------------------------------------------
 
------------------------------------------------------------------------
                          Collision Penetration
Longitudinal extent (vessels with LBP not   .1L or 1.8 meters (6 feet):,
 greater than 45 meters [143 feet]).         whichever is greater in
                                             length.
Longitudinal extent (vessels with LBP       3 meters (10 feet) + .03L.
 greater than 45 meters [143 feet]).
Transverse extent*........................  760 millimeters (30 inches).
Vertical extent...........................  From baseline upward without
                                             limit.
------------------------------------------------------------------------
*The transverse penetration applies inboard from the side of the vessel,
  at right angles to the centerline, at the level of the deepest load
  waterline.


                Table 174.207(b)--Permeability of Spaces
------------------------------------------------------------------------
             Spaces and tanks                       Permeability
------------------------------------------------------------------------
Storerooms................................  60 percent.
Accommodations............................  95 percent.
Machinery.................................  85 percent.
Voids and passageways.....................  95 percent.
Dry-bulk tanks............................  0 (*) or 95 percent.
Consumable-liquid tanks...................  0 (*) or 95 percent.
Other liquid tanks........................  0 (*) 0 (**) or 95 percent.
------------------------------------------------------------------------
*Whichever results in the more disabling condition.
**If tanks are partly filled, the permeability must be determined from
  the actual density and amount of liquid carried.



Sec. 174.210  Watertight doors in watertight bulkheads.

    (a) This section applies to each vessel with watertight doors in 
bulkheads made watertight in compliance with this chapter.
    (b) Except as provided by paragraph (c) of this section, each 
watertight door must comply with subpart H of part 170 of this chapter.
    (c) A Class-1 door may be installed at any place if--
    (1) The door has a quick-acting closing-device operative from both 
sides of the door;
    (2) The door is designed to withstand a head of water equivalent to 
the depth from the sill of the door to the bulkhead deck or 3 meters (10 
feet), whichever is greater; and
    (3) The vessel's pilothouse contains a visual indicator showing 
whether the door is open or closed.
    (d) Each watertight door must be marked in compliance with 
Sec. 131.893 of this chapter.
    (e) If a Class-1 door is installed, the vessel's stability letter 
will require the master to ensure that the door is always closed except 
when being used for access.



Sec. 174.215  Drainage of weather deck.

    The weather deck must have open rails to allow rapid clearing of 
water, or must have freeing ports in compliance with Sec. 42.15-70 of 
this chapter.



Sec. 174.220  Hatches and coamings.

    (a) Each hatch exposed to the weather must be watertight, except 
that the following hatches may be only weathertight:
    (1) Each hatch on a watertight trunk that extends at least 430 
millimeters (17 inches) above the weather deck.
    (2) Each hatch in a cabin top.
    (b) Each hatch cover must--
    (1) Have securing-devices; and
    (2) Be attached to the hatch frame or coaming by hinges, captive 
chains, or other devices to prevent its loss.
    (c) Each hatch that provides access to quarters or to accommodation 
spaces for crew members or offshore workers must be capable of being 
opened and closed from either side.
    (d) Except as provided by paragraph (e) of this section, a 
weathertight door

[[Page 178]]

with a permanent watertight coaming at least 380 millimeters (15 inches) 
high must be installed for each opening in a deckhouse or companionway 
that--
    (1) Gives access into the hull; and
    (2) Is in an exposed place.
    (e) If an opening in a deckhouse or companionway has a Class-1 
watertight door installed, the height of the watertight coaming need 
only accommodate the door.



Sec. 174.225  Hull penetrations and shell connections.

    Each overboard discharge and shell connection except an engine 
exhaust must comply with Secs. 56.50-95 and 128.230 of this chapter.



            Subpart H--Special Rules Pertaining to Liftboats

    Source: CGD 82-004 and CGD 86-074, 62 FR 49355, Sept. 19, 1997, 
unless otherwise noted.



Sec. 174.240  Applicability.

    Each liftboat inspected under subchapter L of this chapter must 
comply with this subpart.



Sec. 174.245  General.

    Each liftboat must comply with Secs. 174.210 through 174.225.



Sec. 174.250  Unrestricted service.

    Each liftboat not limited to restricted service must comply with 
subpart C of this part in each condition of loading and operation.



Sec. 174.255  Restricted service.

    This section applies to each liftboat unable to comply with 
Sec. 174.250 and limited to restricted service as defined by 
Sec. 125.160 of this chapter.
    (a) Intact stability. (1) Each liftboat must be shown by design 
calculations to meet, under each condition of loading and operation 
afloat, the following requirements:
    (i) Those imposed by Sec. 174.045, given a ``K'' value of at least 
1.4.
    (ii) A range of positive stability of at least 10 degrees extending 
from the angle of the first intercept of the curves of righting moment 
and wind heeling moment, either to the angle of the second intercept of 
those curves or to the angle of heel at which downflooding would occur, 
whichever angle is less.
    (iii) A residual righting energy of at least 0.003 meter radians (5 
foot-degrees) between the angle of the first intercept of the curves of 
righting moment and wind heeling moment, either to the angle of the 
second intercept of those curves or to the angle of heel at which 
downflooding would occur, whichever angle is less.
    (2) For this section, each wind heeling moment must be calculated as 
prescribed by Sec. 174.055 of this part using winds of 60 knots for 
normal conditions of operation afloat and of 70 knots for severe-storm 
conditions of operation afloat.
    (3) For paragraph (a)(1) of this section, the initial metacentric 
height must be at least 300 millimeters (1 foot) for each leg position 
encountered while afloat including the full range of leg positions 
encountered while jacking.
    (b) Damaged stability. (1) Each liftboat must be designed so that, 
while it is in each of its normal operating conditions, its final 
equilibrium waterline will remain below the lowest edge of any opening 
through which additional flooding can occur if the liftboat is subjected 
simultaneously to--
    (i) Damage causing flooding described by paragraph (b)(4) of this 
section; and
    (ii) A wind heeling moment calculated in compliance with 
Sec. 174.055(b) using a wind speed of 50 knots.
    (2) Each liftboat must have a means of closing off each pipe, 
ventilation system, and trunk in each compartment described by paragraph 
(b)(4) of this section if any part of the pipe, ventilation system, or 
trunk is within 760 millimeters (30 inches) of the hull.
    (3) For compliance with paragraph (b)(1) of this section, no 
compartment on the liftboat may be ballasted or pumped out to compensate 
for the flooding described by paragraph (b)(4) of this section.
    (4) For compliance with paragraph (b)(1) of this section, each 
compartment within 760 millimeters (30 inches) of the hull, excluding 
the bottom of the liftboat, between two adjacent main

[[Page 179]]

watertight bulkheads and the uppermost continuous deck or first 
superstructure deck where superstructures are fitted must be assumed 
subject to simultaneous flooding.
    (5) In the calculations required by paragraph (b)(1) of this 
section, the permeability of a floodable space must be as listed by 
Table 174.205(d).
    (c) On-bottom stability. Each liftboat must be shown by design 
calculations to exert a continuous downward force on each footing when 
the vessel is supported on the bottom with footings and is subjected to 
the forces of waves, currents, and winds of 70 knots under normal 
conditions of operation, and winds of 100 knots under severe-storm 
conditions of operation when elevated in a safe place, if this place is 
other than a harbor of safe refuge. The waves and currents must be 
appropriate for the winds and place.



Sec. 174.260  Freeboard.

    (a) Each liftboat not required to obtain and maintain a loadline in 
compliance with subchapter E of this chapter must place markings on each 
side of the vessel amidships. These markings must each consist of a 
horizontal line 460 millimeters (18 inches) in length and 25 millimeters 
(1 inch) in height. The upper edges of the markings must be at a 
distance equal to the authorized freeboard measured vertically below the 
intersection of the continuation outwards of the upper surface of the 
weather deck and the outer surface of the shell. This distance must be 
at least 610 millimeters (24 inches).
    (b) The markings required by paragraph (a) of this section may not 
be submerged in any condition of loading or operation.



      Subpart I--Hopper Dredges With Working Freeboard Assignments

    Source: CGD 76-080, 54 FR 36977, Sept. 6, 1989, unless otherwise 
noted.



Sec. 174.300  Specific applicability.

    This subpart applies to each self-propelled hopper dredge for which 
a working freeboard assignment is being sought under part 44, subpart C, 
of this chapter.



Sec. 174.305  Definitions.

    Hopper dredge has the same meaning as contained in Sec. 44.310 of 
this chapter.
    Length has the same meaning as contained in Sec. 42.13-15(a) of this 
chapter.
    Working freeboard has the same meaning as contained in Sec. 44.310 
of this chapter.

                              Calculations



Sec. 174.310  General.

    (a) Each hopper dredge under this subpart must be shown by design 
calculations based on the assumptions under paragraphs (b), (c), (d), 
and (e) of this section, that it meets--
    (1) The requirements in Secs. 170.170, 170.173, and 170.300 of this 
chapter in each condition of loading and operation; and
    (2) The survival conditions of Sec. 174.320 in each condition of 
loading and operation assuming the character and extent of damage 
specified in Sec. 174.315.
    (b) The calculations required by paragraph (a) of this section must 
assume:
    (1) The hoppers are full of seawater;
    (2) The permeability of flooded spaces is as provided by Table 
174.310;
    (3) The equalization provisions of Sec. 174.325; and
    (4) The jettisoning provisions of Sec. 174.330.
    (c) The calculations required by this section must take into account 
a sufficient number of loading conditions to identify the condition in 
which the vessel is least stable, including, but not limited to, the 
most severe loading condition, and the:
    (1) Specific gravity of the dredge spoil, from 1.02 up to and 
including the maximum required by paragraph (e)(1) of this section; and
    (2) Draft, up to and including the draft corresponding to the 
working freeboard for the full range of trim.
    (d) The calculations required by this section for a dredge with open 
hoppers may include spillage of spoil from the hopper resulting from 
changing the angle of heel and trim.
    (e) The following assumptions must be made when doing the 
calculations required by this section:
    (1) Dredged spoil in the hopper is a homogeneous liquid with a 
maximum

[[Page 180]]

specific gravity for the areas of operation.
    (2) When calculating the vessel's righting arm, it is assumed at 
each angle of heel that the vessel trims free and the trimming moment is 
zero.

             Table 174.310--Permeability of Floodable Spaces
------------------------------------------------------------------------
             Spaces and tanks                       Permeability
------------------------------------------------------------------------
Storerooms................................  0.60
Accommodation spaces......................  0.95
Consumable liquid tanks...................  0.00 or 0.95--whichever
                                             results in the more
                                             disabling condition.
Machinery space...........................  0.85--unless otherwise
                                             supported by calculations.
Cargo tanks...............................  Determined from the actual
                                             density and amount of
                                             liquid carried in the tank.
------------------------------------------------------------------------



Sec. 174.315  Extent and character of damage.

    (a) The calculations required by Sec. 174.310 must show that the 
dredge can survive damage at any location along the length of the vessel 
including at a transverse bulkhead in accordance with paragraph (b) of 
this section.
    (b) The calculations required by paragraph (a) of this section must 
assume the most disabling side penetration with the damage collision 
penetration provided by Table 174.315, except that if the most disabling 
damage collision penetrations would be less than those provided by Table 
174.315, the smaller damage collision penetration must be assumed.

          Table 174.315--Extent of Damage Collision Penetration
Longitudinal extent.......................  0.495L2[sol]3 or 47.6 feet.
                                             [(\1/3\)(L)2[sol]3 or 14.5
                                             meters] whichever is less.
Transverse extent \1\.....................  B/5 or 37.7 feet. (11.5
                                             meters), whichever is less.
Vertical extent...........................  From the base line upward
                                             without limit.
------------------------------------------------------------------------
\1\ Damage applied inboard from the vessel's side at a right angle to
  the centerline at the draft corresponding to the working freeboard
  assigned under subchapter E of this chapter.



Sec. 174.320  Damage survival.

    A hopper dredge survives assumed damage if it meets the following 
conditions:
    (a) The maximum angle of heel in each stage of flooding must not 
exceed 30 degrees or the angle of downflooding whichever is less.
    (b) The final waterline, taking into account sinkage, heel, and 
trim, must be below the lowest edge of each opening through which 
progressive flooding may take place.
    (c) The righting arm curve calculated after damage must:
    (1) Have a minimum positive range of 20 degrees beyond the angle of 
equilibrium; and
    (2) Reach a height of at least 4 inches (l00mm) within the 20 degree 
positive range.
    (d) Each opening within, or partially within, the 20 degree range 
beyond the angle of equilibrium must be weathertight.
    (e) After flooding or equalization as allowed by Sec. 174.325, the 
hopper dredge's metacentric height must be at least 2 inches (50mm) when 
the dredge is in an upright position.



Sec. 174.325  Equalization.

    When doing the calculations required by Sec. 174.310 of this 
subpart--
    (a) Equalization arrangements requiring mechanical aids, such as 
valves, may not be assumed to be effective in reducing the angle of 
heel; and
    (b) Spaces joined by ducts may be assumed to be common spaces only 
if equalization takes place within 15 minutes after flooding begins.



Sec. 174.330  Jettisoning of spoil.

    (a) When doing the calculations required by Sec. 174.310 for a 
hopper dredge with bottom doors, it may be assumed that the spoil is 
jettisoned immediately after damage and that the bottom doors remain 
open if:
    (1) The bottom doors are designed so that they may be fully opened 
from:
    (i) The closed position within two minutes even if the main power 
source is lost or the bottom door actuating mechanism is damaged; and
    (ii) The navigating bridge;
    (2) The discharge area through the bottom doors is equal to or 
greater than 30 percent of the maximum cross sectional area of the 
hopper measured in a plane parallel to the waterline; and
    (3) Asymmetrical jettisoning of the spoil is impossible.

[[Page 181]]

    (b) When doing the calculations required by Sec. 174.310 for a 
hopper dredge with a split hull, it may be assumed that the spoil is 
jettisoned immediately after damage if--
    (1) The hull is designed so that--
    (i) The complete separation is effected within two minutes even if 
the main power source is lost or the actuating means is damaged; and
    (ii) The actuating means can be operated from the navigating bridge;
    (2) It is shown to the Commanding Officer, Marine Safety Center, 
either by calculations or by operational tests, that the hulls can 
separate sufficiently to allow the dredged material to dump without 
bridging; and
    (3) Asymmetrical jettisoning of the spoil is impossible.

                                 Design



Sec. 174.335  Watertight doors.

    (a) Each hopper dredge must have sliding watertight doors (Class 3) 
approved under Sec. 170.270 of this chapter if the sill for the door is-
-
    (1) Installed below the bulkhead deck; and
    (2) Less than 24 inches above the final waterline as shown by the 
calculations required by Sec. 174.310 in each damage condition up to and 
including the maximum amount of assumed damage.
    (b) Each hopper dredge must have sliding watertight doors (Class 3) 
approved under Sec. 170.270 of this chapter, or quick acting hinged 
watertight doors (Class 1) approved under the same subpart if the sill 
of the watertight door is--
    (1) Installed below the bulkhead deck; and
    (2) Greater than 24 inches above the final waterline as shown by the 
calculations required by Sec. 174.310 in each damage condition up to and 
including the maximum amount of assumed damage.

[CGD 76-080, 54 FR 36977, Sept. 6, 1989, as amended by CGD 95-072, 60 FR 
50468, Sept. 29, 1995]



Sec. 174.340  Collision bulkhead.

    Each hopper dredge must have a collision bulkhead that is located 
not less than 5 percent of the length abaft of the forward 
perpendicular.



         Subpart J--Special Rules Pertaining to Dry Cargo Ships

    Source: CGD 87-094, 58 FR 17320, Apr. 1, 1993, unless otherwise 
noted.



Sec. 174.350  Specific applicability.

    This subpart applies to each new ship of 500 gross tons or over, as 
calculated by the International Convention on Tonnage Measurement of 
Ships, 1969, designed primarily for the carriage of dry cargoes, 
including roll-on/roll-off ships and integrated tug and barges (ITBs) 
when operating as a combined unit.



Sec. 174.355  Definitions.

    New ship means a ship:
    (1) For which the building contract is placed on or after February 
1, 1992; or
    (2) In the absence of a building contract, the keel of which is laid 
or which is at a similar stage of construction on or after August 1, 
1992; or
    (3) The delivery of which is on or after February 1, 1997; or
    (4) For which application for reflagging is made on or after 
February 1, 1997; or
    (5) Which has undergone a major conversion:
    (i) For which the contract is placed on or after February 1, 1992; 
or
    (ii) In the absence of a contract, the construction work of which is 
begun on or after August 1, 1992; or
    (iii) Which is completed on or after February 1, 1997.

[[Page 182]]



Sec. 174.360  Calculations.

    Each ship to which this subpart applies, must meet the minimum 
standard of subdivision and damage stability required for that ship by 
the International Convention for the Safety of Life at Sea, 1974, as 
amended, chapter II-1, part B-1. Compliance with the applicable 
requirements must be demonstrated by calculations and reflected in 
information on loading restrictions, such as a maximum height of the 
center of gravity (KG) or minimum metacentric height (GM) curve that is 
part of the stability information required by Sec. 170.110 of this 
chapter and Regulation 25-8 of The International Convention for the 
Safety of Life at Sea, 1974, as amended, chapter II-1, part B-1.

[[Page 183]]

                                  INDEX

                   SUBCHAPTER S--SUBDIVISION AND STABILITY

  Editorial Note: This listing is provided for informational purposes 
only. It is compiled and kept current by the U.S. Coast Guard, 
Department of Transportation. This index is updated as of October 1, 
2002.

                                               Part, Subpart, or Section

                                 A

Addresses:
Material incorporated by reference...............................170.015
Merchant marine technical offices................................170.100
Aft peak bulkhead, passenger vessels
                                                                 171.090
Alterations
                                                     170.001(b), 170.005
Auxiliary sailing vessels:
Defined.......................................................170.055(a)
Large passenger vessels..........................................171.045
Small passenger vessels.................................170.055, 171.010
Weather criterion for............................................170.160

                                 B

Ballast, fixed. (See Fixed ballast)
Barges:
Deck cargo...........................................Part 174, Subpart B
Definitions..........................................170.055 (b) and (q)
Large passenger..................................................171.045
Oceanographic research...........................................173.070
Tank. (See Tank barges)
Weather criterion for............................................170.160
Bulk cargo vessels, special requirements for
                                                                Part 172
Buoyancy:
Air tanks.........................................171.070(d), 171.095(c)
Foam flotation material..........................................170.245
Internal..........................................171.070(d), 171.095(c)
Standards of flooding............................................171.017

                                 C

Calculations:
Samples of, in stability booklet..............................170.110(d)
Stability text results........................................170.175(a)
Submittal of.....................................................170.090
Catamarans
                                                                 171.057
Center of gravity:
Determination of.....................................Part 170, Subpart F
Estimated position on tank vessels...............................170.200
In stability booklet..........................................170.110(d)
Subchapter O barges...........................................172.090(b)
Tanks......................................................170.075(a)(5)

[[Page 184]]

Virtual increase of..................................Part 170, Subpart I
Collision bulkhead:
Oceanographic research vessels..........................173.075, 173.085
Passenger vessels.....................171.060, 171.065, 171.070, 171.085
Consumable liquids: Effect on stability calculations
                                                        170.285, 170.290
Cranes:
Data required....................................................170.095
Requirements for vessels with........................Part 173, Subpart B
Cross curves, required
                                                           170.090(b)(3)
Cross-flooding:
Liquefied gas carriers, system standards......................172.195(g)
Passenger vessels, system standards...........................171.080(e)
Subchapter O tankships, system standards......................172.150(g)

                                 D

Damage stability calculations:
Liquefied gas carriers, local damage.............................172.205
Liquefied gas carriers, major damage.............................172.170
MODU's, standards for............................................174.065
Nautical school ships, standards for....................173.055, 173.080
Oceanographic research vessels, standards for....................173.080
Passenger vessels:
Cockpits...................................................171.145(e)(3)
Types I and II...................................................171.080
Type III.........................................................171.082
Well decks.................................................171.150(b)(2)
Subchapter D tank barges carrying cargoes other than oil.........172.050
Subchapter O barges, standards for...............................172.103
Subchapter O tankships, standards for............................172.133
Dangerous cargoes
                                              Part 172, Subparts E and F
Dead covers:
Oceanographic research vessels, required......................173.085(k)
Passenger vessels, required...........171.117, 171.119(a)(2), 171.122(g)
Deadweight surveys
                                                              170.175(c)
Deck cargo barges. (See Barges)
Definitions:
Concerning a vessel..............................................170.055
General terms....................................................170.050
Pertaining to lifting............................................173.010
Pertaining to liquefied gas carriers.............................172.160
Pertaining to MODU's.............................................174.035
Pertaining to passenger vessels..................................171.010
Pertaining to Subchapter O tankships.............................172.127
Discontinuous bulkhead deck, passenger vessels
                                                              171.015(c)
Discontinuous weather deck
                                                              170.170(b)
Double bottoms, passenger vessels:
Manholes in......................................................171.108
Permeability of............................................171.066(b)(4)
Required.........................................................171.105
Watertight floors in.............................................171.109
Wells in.........................................................171.106
Downflooding:
Angle.........................................................170.055(g)
Deck cargo barges................................................174.015
Defined (except MODU's).......................................170.055(e)
Lifting vessels...............................................173.020(b)
Liquefied gas carriers...........................................172.195
Mobile offshore drilling units (MODU's):

[[Page 185]]

Considered.......................................................174.045
Defined.......................................................174.035(b)
Oil tankers...................................................170.055(p)
Sailing passenger vessels........................................171.055
Subchapter O barges..............................................172.090
Subchapter O tankships...........................................172.150
Tugboats and towboats............................................174.145
Vessels of unusual proportion and form...........................170.173
Vessels which tow................................................173.095
Draft marks
                                               170.075(a)(6), 170.180(e)
Drainage of weather decks
                                                     Part 171, Subpart H
Deck cargo barges
                                                     Part 174, Subpart B

                                 E

Equalization. (See Cross-flooding)
Equivalent plane bulkhead, passenger vessels:
Defined.......................................................171.010(c)
Required:
Type I subdivision............................................171.067(f)
Type II subdivision...........................................171.073(c)
Equivalents
                                                                 170.010
Estimated lightweight vertical center of gravity
                                                                 170.200
Existing vessels
                                                              170.001(b)

                                 F

Ferry:
Collision bulkheads...........................................171.060(d)
Defined.......................................................171.010(d)
Fixed ballast
                                                 170.110(d)(14), 170.235
Floodable length:
Curves required............................................170.090(b)(4)
Defined.......................................................171.010(f)
Passenger vessels:
Standards, Type I................................................171.065
Standards, Type II...............................................171.070
Standards, Type III..............................................171.075
Floors, watertight--in double bottoms
                                                                 171.109
Foam flotation
                                         170.245, 171.070(d), 171.095(c)
Foreign vessels
                                                           170.001(a)(2)
Freeboard: Allowable heeling limits, general
                                                              170.170(a)
Freeing ports:
Minimum Area.....................................................171.150
Required.........................................................171.135
Free surface:
Instructions concerning:
Counterballasting..........................................170.125(b)(1)
Stability booklet..........................................170.110(d)(6)
Subchapter O tank barges, assumption..........................172.087(b)
Treatment of, general................................Part 170, Subpart I

                                 G

Grain in bulk
                                                     Part 172, Subpart B
``Grandfathering''
                                                              170.001(b)

[[Page 186]]

                                 H

Hazardous liquids
                                                 Part 172, Subparts E, F
Hopper barges:
Subchapter D cargoes other than oil..............................172.050
Subchapter O cargoes....................................172.100, 172.110
Hydrostatic curves (curves of form), required
                                                           170.075(a)(3)

                                 I

Inclining experiments. (See Stability test)
Incorporation by reference:
General..........................................................170.015
IMO Resolution A.265(VIII).....................170.135, 171.075, 171.082
MIL-P-21929B...............................................170.245(b)(9)
Intact stability:
Deck cargo barges.......................................174.015, 174.020
Large passenger vessels:
Catamarans.......................................................171.057
Passenger heel...................................................171.050
Sailing..........................................................171.055
Lifting vessels.........................................173.020, 173.025
Liquefied gas carriers...........................................172.165
Mobile offshore drilling units (MODU's)..........................174.045
Passenger vessels:
Cockpits...................................................171.145(e)(1)
Well decks.................................................171.150(b)(2)
Subchapter O barges.....................................172.090, 172.095
Tugboats and Towboats............................................174.145
Vessels of unusual proportion and form...............170.170(d), 170.173
Weather Criterion.......................................170.160, 170.170
International voyage:
Passenger vessels:
Aft peak bulkhead required....................................171.090(a)
Defined.......................................................171.010(h)
Double bottoms required for...................................171.105(a)
Shaft tunnels.................................................171.100(a)
Special considerations...........................................171.068
Standards........................................................171.045
Subdivision requirements...................................170.265(d)(1)
Watertight door requirements...............................170.265(d)(1)

                                 L

Large Passenger vessels
                                                     Part 171, Subpart C
Lifting:
Data submittal requirements......................................170.095
Operating information requirements...............................170.125
Standards............................................Part 173, Subpart B
Lightweight:
Defined.......................................................170.055(j)
Information required, stability booklet....................170.110(d)(1)
Determination of.....................................Part 170, Subpart F
Lines drawing required
                                               170.075(a)(2), 170.180(a)
Liquefied flammable gas, barges
                                                     Part 172, Subpart C
Liquefied gas carriers
                                                     Part 172, Subpart G
LNG Carriers. (See Liquefied gas carriers)
Load line:
Certificate stability information on..............170.110(e), 170.120(b)

[[Page 187]]

Length, defined............................................170.055(h)(5)
Locks required:
Cargo space watertight doors..................................170.275(b)
Port lights below the bulkhead deck........................171.116(f)(4)

                                 M

Machinery space bulkhead, passenger vessels
                                                                 171.095
Main transverse watertight bulkhead
                                                              170.055(k)
Manholes, passenger vessels:
Double bottoms...................................................171.108
Prohibited locations..........................................171.111(h)
Margin line:
Passenger vessels:
Air tankage or internal buoyancy...........................171.070(d)(2)
Dead covers required on port lights, below....................171.117(a)
Location of......................................................171.015
Location of openings.....................................171.111(f), (g)
Openings in trunks.........................................171.113(c)(2)
Stepped bulkheads..........................................171.067(b)(3)
Submergence of........................171.017, 171.080(d)(3), 171.100(b)
Volume below.........................Tables 171.065(a), 171.066, 171.068
Volume of passenger spaces above..............................171.065(b)
Watertight integrity above...........................Part 171, Subpart G
Test head:
Form flotation material....................................170.245(b)(3)
Watertight doors..............................................170.270(b)
Military specifications, MIL-P-21929B
                                                  170.015(b), 170.245(b)
Mobile offshore drilling units (MODU's):
Stability information required................................170.110(a)
Standards for............................174.005(b), Part 174, Subpart C

                                 N

Nautical school ships, standards
                             171.001(b), 173.001(b), Part 173, Subpart C

                                 O

Oceanographic vessel, standards
                             171.001(b), 173.001(c), Part 173, Subpart D
Oil in bulk, standards for vessels carrying
                                         172.005(c), Part 172, Subpart D
Openings:
Closed by weathertight covers:
Liquefied gas carriers...........................................172.195
Mobile offshore drilling units................................174.045(c)
Oil tankers...................................................172.065(g)
Subchapter O tankships...........................................172.150
Downflooding through:
General..................................................170.055(e), (f)
Mobile offshore drilling units....................174.035(b), 174.065(a)
Subchapter O barges...........................................172.090(d)
Sailing passenger vessels.....................................171.055(e)
Mobile offshore drilling units:
Closures for.....................................................174.100
Watertight, closed automatically..............................174.015(b)
Watertight, closed rapidly.......................................174.045
Passenger vessels:
Cockpit openings...........................................171.145(a)(2)
Collision bulkhead...............................................171.085
Special consideration, exposed weather decks..................171.122(f)

[[Page 188]]

Vessel sides.........................................Part 171, Subpart F
Watertight bulkheads.................................Part 171, Subpart E
Watertight, closed automatically:
Mobile offshore drilling units................................174.015(b)
Towing vessels................................................173.095(e)

                                 P

Passenger vessels, standards
                                                                Part 171
Penetrations (See Openings)
Permeability
Calculation of, Type I subdivision...............................171.066
Damage stability:
Liquefied gas carriers...........................................172.185
Mobile offshore drilling units...................................174.090
Oil tankers...................................................172.065(f)
Passenger vessels.............................................171.080(c)
Subchapter O tankships...........................................172.140
Defined.......................................................170.055(m)
Uniform average permeability:
Type I subdivision.........................................Table 171.068
Type II subdivision..............................................171.072
Plans:
Approval:
General.....................................Part 170, Subpart C, 170.180
Required.........................................................170.075
Specific.........................................................170.093
Submittal of............................................170.100, 170.180
Port lights
                                                                 171.116

                                 R

Repairs:
General..............................................170.001(b), 170.005
In way of fixed ballast.......................................170.235(b)
Roll stabilization tanks
                                                                 170.295
Rudders, towline pull criterion
                                                                 173.095

                                 S

Sailing vessels:
Defined..................................................170.055(a), (1)
Intact stability standards:
Catamarans.......................................................171.057
Large passenger vessels..........................................171.055
Weather criterion................................................170.160
School ships (See Nautical school ships)
Shaft power, towline pull criterion
                                                                 173.095
Shaft tunnels:
On passenger vessels.................................171.100, 171.106(c)
Watertight doors in...........................................170.260(d)
Short international voyages, vessels on:
Class 3 doors..............................................170.265(d)(1)
Defined.......................................................171.010(n)
Double bottoms not required................................171.105(h)(2)
Special considerations...........................................171.068
Side ports, passenger vessels
                                                                 171.118
Sister vessel, stability test dispensed with
                                                              170.175(c)

[[Page 189]]

Small passenger vessels, standards
                                                                Part 171
Stability booklets:
Contents of......................................................170.110
Lifting vessels, additional information..........................170.125
Submission and approval required.................................170.080
Vessels with Type III subdivision, additional information........170.135
Stability letters:
In lieu of stability booklet..................................170.110(e)
Required.........................................................170.120
Stability test:
General..........................................................170.175
Information required before test.................................170.085
Plans and information required at test...........................170.180
Preparations for test............................................170.185
Test procedure, modification of..................................170.190
Stern tubes, passenger vessels
                                                                 171.100
Subdivision:
Oceanographic vessels...................................173.075, 173.085
Passenger vessels:
Additional requirements..............................Part 171, Subpart D
Calculations:
Type I................................171.065, 171.066, 171.067, 171.068
Type II........................................171.070, 171.072, 171.073
Type III.........................................................171.075
Requirements, large passenger vessels............................171.060
Trunks, effect of..........................................171.113(b)(3)
Subdivision load line (draft), passenger vessels:
Cockpits.................................................171.145(e), (f)
Dead cover locations..........................................171.117(b)
Deepest, defined..............................................171.010(b)
Openings in hull, small passenger vessels.....................171.119(a)
Port light locations.......................................171.116(b)(2)
Transverse damage extent, relationship to...........171.065(h)(2), Table 
                                                              171.080(a)
Ventilators and side port locations...........................171.118(c)
Superstructures:
Buoyancy of:
Liquefied gas carriers........................................172.195(e)
Oil tankers...................................................172.065(h)
Subchapter O tankships...........................................172.150
Integrity of, mobile offshore drilling units..................174.100(b)
Points of downflooding in:
General.......................................................170.055(e)
Mobile offshore drilling units.............................174.035(b)(1)
Port lights in, oceanographic vessels.........................173.085(k)

                                 T

Tank barge:
Assumed center of gravity for..............................170.200(b)(2)
Carrying oil in bulk.................................Part 172, Subpart D
Carrying Subchapter D cargoes other than oil.........Part 172, Subpart C
Carrying Subchapter O cargoes........................Part 172, Subpart E
Defined.......................................................170.055(q)
Tank vessel:
Assumed center of gravity........................................170.200
Defined.......................................................170.055(p)
Standards for...........................Part 172, Subparts C, D, E, F, G
Tests:

[[Page 190]]

Foam flotation material..........................................170.245
Stability...................................170.085, Part 170, Subpart F
Watertight doors.................................................170.270
Towboats. (See Towing)
Towing, standards for
        173.001(d), Part 173, Subpart E, 174.005(d), Part 174, Subpart E
Towline pull criterion
                                                                 173.095
Tugboats. (See Towing)
                                 U

Unusual proportion and form, vessels of
                                                                 170.173

                                 V

Ventilators, automatic--passenger vessels
                                                                 171.118

                                 W

Watertight bulkheads:
Doors, standards for...............171.122, 171.124, Part 170, Subpart H
Liquefied gas carriers..................................172.175, 172.195
Mobile offshore drilling units..........................174.080, 174.085
Oceanographic vessels, ducts through..........................173.085(o)
Oil tankers......................................................172.065
Passenger vessels:
Above weatherdeck................................................171.122
Large passenger vessels, requirements.........171.065, 171.067, 171.068, 
                                                        171.070, 171.073
Machinery space..................................................171.095
Penetrations of......................................Part 171, Subpart E
Watertight floors................................................171.109
Subchapter D barges not carrying oil.............................172.050
Subchapter O barges..............................................172.104
Subchapter O tankships...............................172.133(d), 172.150
Watertight doors. (See Watertight bulkheads)
Weather criterion
                                                     Part 170, Subpart E
Wind heeling moment: MODU's
           174.035(b)(2), 174.045, 174.055, 174.065(a)(2), 174.100(d)(2)

[[Page 191]]



      SUBCHAPTER T--SMALL PASSENGER VESSELS (UNDER 100 GROSS TONS)





PART 175--GENERAL PROVISIONS--Table of Contents




Sec.
175.100  Purpose.
175.110  General applicability.
175.112  Specific applicability for individual parts.
175.115  Applicability to offshore supply vessels.
175.118  Vessels operating under an exemption afforded in the Passenger 
          Vessel Safety Act of 1993 (PVSA).
175.120  Vessels on an international voyage.
175.122  Load lines.
175.200  Gross tonnage as criterion for requirements.
175.400  Definitions of terms used in this subchapter.
175.540  Equivalents.
175.550  Special consideration.
175.560  Appeals.
175.600  Incorporation by reference.
175.800  Approved equipment and material.
175.900  OMB control numbers.

    Authority: 46 U.S.C. 2103, 3205, 3306, 3703; Pub.L 103-206, 107 
Stat. 2439; 49 U.S.C. App. 1804; 49 CFR 1.45, 1.46; 175.900 also issued 
under authority of 44 U.S.C. 3507.

    Source: CGD 85-080, 61 FR 947, Jan. 10, 1996, unless otherwise 
noted.



Sec. 175.100  Purpose.

    The purpose of this subchapter is to implement applicable sections 
of Subtitle II of Title 46, United States Code, which require the 
inspection and certification of small passenger vessels.



Sec. 175.110  General applicability.

    (a) Except as in paragraph (b) of this section, this subchapter 
applies to each vessel of less than 100 gross tons that carries 150 or 
less passengers, or has overnight accommodations for 49 or less 
passengers, and that--
    (1) Carries more than six passengers, including at least one for 
hire;
    (2) Is chartered with a crew provided or specified by the owner or 
the owner's representative and is carrying more than six passengers;
    (3) Is chartered with no crew provided or specified by the owner or 
the owner's representative and is carrying more than 12 passengers; or
    (4) If a submersible vessel, carries at least one passenger for 
hire.

    Note to Sec. 175.110: For a vessel of less than 100 gross tons that 
carries more than 150 passengers or has overnight accommodations for 
more than 49 passengers, see subchapter K of this chapter.

    (b) This subchapter does not apply to:
    (1) A vessel operating exclusively on inland waters that are not 
navigable waters of the United States;
    (2) An oceanographic research vessel;
    (3) A boat forming part of a vessel's lifesaving equipment and that 
is not used for carrying passengers except in emergencies or during 
emergency drills;
    (4) A vessel of a foreign country that is a party to the 
International Convention for the Safety of Life at Sea, 1974, as amended 
(SOLAS), to which the United States Government is currently a party, and 
that has on board a current valid SOLAS Passenger Ship Safety 
Certificate; or
    (5) A vessel of a foreign country, whose government has inspection 
laws approximating those of the United States and that by its laws 
accords similar privileges to vessels of the United States, which has on 
board a current valid certificate of inspection, permitting the carrying 
of passengers, issued by its government.

[CGD 85-080, 61 FR 947, Jan. 10, 1996; 61 FR 20557, May 7, 1996, as 
amended at 62 FR 51355, Sept. 30, 1997]



Sec. 175.112  Specific applicability for individual parts.

    At the beginning of certain parts of this subchapter, a more 
specific application is given for all or particular portions of that 
part. This application sets forth the type, size, service, or age of a 
vessel to which certain portions of that part apply or particular dates 
by which an existing vessel must comply with certain portions of that 
part.



Sec. 175.115  Applicability to offshore supply vessels.

    (a) Existing OSVs of more than 15 but less than 100 gross tons are 
subject to

[[Page 192]]

inspection under this subchapter. New OSVs of more than 15 but less than 
100 gross tons are subject to inspection under subchapter L of this 
chapter.
    (b) Each existing OSV permitted grandfathering under paragraph (a) 
of this section must complete construction and have a Certificate of 
Inspection by March 16, 1998.

[CGD 82-004 and CGD 86-074, 62 FR 49355, Sept. 19, 1997]



Sec. 175.118  Vessels operating under an exemption afforded in the Passenger Vessel Safety Act of 1993 (PVSA).

    (a) The Passenger Vessel Safety Act of 1993 (PVSA) contained an 
allowance for the exemption of certain passenger vessels that are--
    (1) At least 100 gross tons but less than 300 gross tons; or
    (2) Former public vessels of at least 100 gross tons but less than 
500 gross tons.
    (b) The owner or operator of a vessel must have applied for an 
exemption under PVSA by June 21, 1994, and then brought the vessel into 
compliance with the interim guidance in Navigation and Inspection 
Circular (NVIC) 7-94 not later than December 21, 1996. The PVSA 
exemption is valid for the service life of the vessel, as long as the 
vessel remains certified for passenger service. If the Certificate of 
Inspection (COI) is surrendered or otherwise becomes invalid (not 
including a term while the vessel is out of service but undergoing an 
inspection for recertification), the owner or operator must meet the 
appropriate inspection regulations to obtain a new COI without the PVSA 
exemption.
    (c) Except where the provisions of subchapter H of this chapter 
apply, the owner or operator must ensure that the vessel meets the 
requirements of this subchapter, meets any requirements the OCMI deems 
applicable, and meets any specific additions or exceptions as follows:
    (1) If a vessel does not meet the intact stability requirements of 
subchapter S of this chapter, the vessel's route(s) will be limited to 
an area within 20 nautical miles from a harbor of safe refuge, provided 
the vessel has a history of safe operation on those waters. The OCMI may 
further restrict the vessel's routes if the vessel's service history, 
condition, or other factors affect its seaworthiness or safety.
    (2) The vessel may not carry more than 150 passengers, and not more 
than 49 passengers in overnight accommodations.
    (3) The owner or operator must crew the vessel under the 
requirements of this subchapter. All officers must be licensed for the 
appropriate vessel tonnage. The OCMI may require a licensed engineer for 
those vessels of at least 200 gross tons. Vessels carrying more than 50 
passengers must have an additional deckhand, and all deckhands on 
vessels carrying more than 50 passengers must be adequately trained. The 
crew members on a vessel of at least 200 gross tons, except those 
operated exclusively on lakes and rivers, are required to hold merchant 
mariner documents and 50 percent of the unlicensed deck crew must be 
rated as at least an able seaman.
    (4) The vessel owner or operator must comply with the lifesaving 
arrangements located in part 180 of this chapter, except that inflatable 
liferafts are required for primary lifesaving. A rescue boat or suitable 
rescue arrangement must be provided to the satisfaction of the OCMI.
    (5) The vessel owner or operator must comply with the fire 
protection requirements located in part 181 of this chapter. When a 
vessel fails to meet the fire protection and structural fire protection 
requirements of this subchapter, the vessel owner or operator must meet 
equivalent requirements to the satisfaction of the cognizant OCMI or 
submit plans for approval from the Coast Guard Marine Safety Center.
    (6) At a minimum, the owner or operator must outfit the vessel with 
portable fire extinguishers per 46 CFR 76.50. In addition, the vessel 
must meet any additional requirements of the OCMI, even if they exceed 
the requirements in 46 CFR 76.50.
    (7) In addition to the means-of-escape requirements of 46 CFR 
177.500, the vessel owner or operator must also meet the requirements 
for means of escape found in 46 CFR 78.47-40.
    (d) The OCMI conducts an inspection and may issue a COI if the 
vessel meets

[[Page 193]]

these requirements. The COI's condition of operation must contain the 
following endorsement: ``This vessel is operating under an exemption 
afforded in The Passenger Vessel Safety Act of 1993 and as such is 
limited to domestic voyages and a maximum ------ of passengers and may 
be subject to additional regulations and restrictions as provided for in 
Sections 511 and 512 of the Act.''

[USCG-1999-5040, 67 FR 34799, May 15, 2002]



Sec. 175.120  Vessels on an international voyage.

    A mechanically propelled vessel that carries more than 12 passengers 
on an international voyage must comply with the applicable requirements 
of SOLAS, as well as this subchapter.



Sec. 175.122  Load lines.

    A vessel of 24 meters (79 feet) in length or more, the keel of which 
was laid or that was at a similar stage of construction on or after July 
21, 1968, and that is on a voyage other than a domestic voyage is 
subject to load line assignment, certification, and marking under 
suchapter E (Load Lines) of this chapter.



Sec. 175.200  Gross tonnage as criterion for requirements.

    (a) The regulations in this subchapter take into account a vessel's 
length, passenger capacity, construction, equipment, intended service, 
and operating area. The criterion for application of this subchapter is 
the gross tonnage of the vessel. When the Commandant determines that the 
gross tonnage of a particular vessel, which is attained by exemptions, 
reductions, or other devices in the basic gross tonnage formulation, 
will circumvent or be incompatible with the application of specific 
regulations for a vessel of such physical size, the Commandant will 
prescribe the regulations to be made applicable to the vessel.
    (b) When the Commandant determines that the gross tonnage is not a 
valid criterion for the use of certain regulations based on the relative 
size of the vessel, the owner will be informed of the determination and 
of the regulations applicable to the vessel. The vessel must be brought 
into compliance with all additional requirements before a Certificate of 
Inspection is issued.



Sec. 175.400  Definitions of terms used in this subchapter.

    The following terms are used in this subchapter:
    Accommodation space means a space (including a space that contains a 
microwave oven or other low heat appliance with a maximum heating 
element temperature of less than 121   deg.C (250   deg.F)) used as a:
    (1) Public space;
    (2) Hall;
    (3) Dining room and mess room;
    (4) Lounge or cafe;
    (5) Public sales room;
    (6) Overnight accommodation space;
    (7) Barber shop or beauty parlor;
    (8) Office of conference room;
    (9) Washroom or toilet space;
    (10) Medical treatment room or dispensary; or
    (11) Game or hobby room.
    Adequate hull protection system means a method of protecting the 
vessel's hull from corrosion. It includes, as a minimum, either hull 
coatings and a cathodic protection (CP) system consisting of zinc 
anodes, or an impressed current CP system.
    Alternative Hull Examination (AHE) Program means a program in which 
an eligible vessel may receive an initial and subsequent credit hull 
examination through a combination of underwater surveys, internal 
examinations and annual hull condition assessment.
    Anniversary date means the day and the month of each year, which 
corresponds to the date of expiration of the Certificate of Inspection.
    Approval series means the first six digits of a number assigned by 
the Coast Guard to approved equipment. Where approval is based on a 
subpart of subchapter Q of this chapter, the approval series corresponds 
to the number of the subpart. A listing of approved equipment, including 
all of the approval series, is published periodically by the Coast Guard 
in Equipment Lists (COMDTINST M16714.3 series), available from the 
Superintendent of Documents.
    Beam or B means the maximum width of a vessel from:

[[Page 194]]

    (1) Outside of planking to outside of planking on wooden vessels; 
and
    (2) Outside of frame to outside of frame on all other vessels.
    Bulbous bow means a design of bow in which the forward underwater 
frames ahead of the forward perpendicular are swelled out at the 
forefoot into a bulbous formation.
    Bulkhead deck means the uppermost deck to which watertight bulkheads 
and the watertight shell extend.
    Cable means single or multiple insulated conductors with an outer 
protective jacket.
    Cargo space means a:
    (1) Cargo hold;
    (2) Refrigerated cargo space;
    (3) A trunk leading to or from a space listed above: or
    (4) A vehicle space.
    Coast Guard District Commander or District Commander means an 
officer of the Coast Guard designated as such by the Commandant to 
command Coast Guard activities within a district.
    Coastwise means a route that is not more than 20 nautical miles 
offshore on any of the following waters:
    (1) Any ocean;
    (2) The Gulf of Mexico;
    (3) The Caribbean Sea;
    (4) The Bering Sea;
    (5) The Gulf of Alaska; or
    (6) Such other similar waters as may be designated by a Coast Guard 
District Commander.
    Cockpit vessel means a vessel with an exposed recess in the weather 
deck extending not more than one-half of the length of the vessel 
measured over the weather deck.
    Cold water means water where the monthly mean low water temperature 
is normally 15 degrees Celsius (59 degrees Fahrenheit) or less.
    Commandant means the Commandant of the Coast Guard or an authorized 
Headquarters staff officer designated in Sec. 1.01 of this chapter.;
    Consideration means an economic benefit, inducement, right, or 
profit including pecuniary payment accruing to an individual, person, or 
entity, but not including a voluntary sharing of the actual expenses of 
the voyage, by monetary contribution or donation of fuel, food, 
beverage, or other supplies.
    Corrosion-resistant material or corrosion-resistant means made of 
one of the following materials in a grade suitable for its intended use 
in a marine environment:
    (1) Silver;
    (2) Copper;
    (3) Brass;
    (4) Bronze;
    (5) Aluminum alloys with a copper content of no more than 0.4 
percent;
    (6) Cooper-nickel;
    (7) Plastics;
    (8) Stainless steel;
    (9) Nickel-copper; or
    (10) A material, which when tested in accordance with ASTM B 117 
(incorporated by reference, see Sec. 175.600) for 200 hours, does not 
show pitting, cracking, or other deterioration.
    Crew accommodation space means an accommodation space designated for 
the use of crew members and that passengers are normally not allowed to 
occupy.;
    Custom engineered means, when referring to a fixed gas fire 
extinguishing system, a system that is designed for a specific space 
requiring individual calculations for the extinguishing agent volume, 
flow rate, piping, and similar factors for the space.
    Dead cover means a metal cover to close or protect a port light to 
avoid glass breakage in case of heavy weather.
    Distribution panel means an electrical panel that receives energy 
from the switchboard and distributes the energy to energy consuming 
devices or other panels.;
    Draft means the vertical distance from the molded baseline of a 
vessel amidships to the waterline.;
    Dripproof means enclosed equipment so constructed or protected that 
falling drops of liquid or solid particles striking the enclosure at any 
angle from 0 to 15 degrees downward from the vertical do not interfere 
with the operation of the equipment. A National Electrical Manufacturers 
Association type 1 enclosure with a dripshield is considered to be 
dripproof.
    Drydock examination means hauling out a vessel or placing a vessel 
in a drydock or slipway for an examination of all accessible parts of 
the vessel's

[[Page 195]]

underwater body and all through-hull fittings and appurtenances.
    Embarkation station means the place on the vessel from which a 
survival craft is boarded.
    Enclosed space means a compartment that is not exposed to the 
atmosphere when all access and ventilation closures are secured.
    Existing OSV means an OSV that was contracted for, or the keel of 
which was laid, before March 15, 1996.
    Existing vessel means a vessel that is not a new vessel.
    Exposed waters is a term used in connection with stability criteria 
and means:
    (1) Waters, except the Great Lakes, more than 20 nautical miles from 
a harbor of safe refuge;
    (2) Those portions of the Great Lakes more than 20 nautical miles 
from a harbor of safe refuge from October 1 of one year through April 15 
of the next year (winter season); and
    (3) Those waters less than 20 nautical miles from a harbor of safe 
refuge that the cognizant Officer in Charge, Marine Inspection, 
determines are not partially protected waters or protected waters 
because they present special hazards due to weather or other 
circumstances.
    Ferry means a vessel that:
    (1) Operates in other than ocean or coastwide service;
    (2) Has provisions only for deck passengers or vehicles, or both;
    (3) Operates on a short run on a frequent schedule between two 
points over the most direct water route; and
    (4) Offers a public service of a type normally attributed to a 
bridge or tunnel.
    Fiber reinforced plastic means plastics reinforced with fibers or 
strands of some other material.
    Flash point means the temperature at which a liquid gives off a 
flammable vapor when heated using the Pensky-Martens Closed Cup Tester 
method in accordance with ASTM D-93.
    Float-free launching or arrangement means that method of launching a 
survival craft whereby the survival craft is automatically released from 
a sinking vessel and is ready for use.
    Flush deck vessel means a vessel with a continuous weather deck 
located at the uppermost sheer line of the hull.
    Freeing port means any direct opening through the vessel's bulwark 
or hull to quickly drain overboard water that has been shipped on 
exposed decks.
    Galley means a space containing appliances with cooking surfaces 
that may exceed 121 deg. C (250 deg. F), such as ovens, griddles, and 
deep fat fryers.
    Great Lakes means a route on the waters of any of the Great Lakes, 
except that for the purposes of parts 178 and 179 of this subchapter, 
``Great Lakes'' means both the waters of the Great Lakes and of the St. 
Lawrence River as far east as a straight line drawn from Cap de Rosiers 
to West Point, Anticosti Island, and west of a line along the 63rd 
meridian from Anticosti Island to the north shore of the St. Lawrence 
River.
    Gross tonnage and gross tons is an indicator of a vessel's 
approximate volume as determined in accordance with part 69 (Measurement 
of Vessels) of this chapter and recorded on the vessel's Tonnage 
Certificate (formerly Certificate of Admeasurement).
    Harbor of safe refuge means a port, inlet, or other body of water 
normally sheltered from heavy seas by land and in which a vessel can 
navigate and safely moor. The suitability of a location as a harbor of 
safe refuge shall be determined by the cognizant Officer in Charge, 
Marine Inspection, and varies for each vessel, dependent on the vessel's 
size, maneuverability, and mooring gear.
    Hazardous condition means any condition that could adversely affect 
the safety of any vessel, bridge, structure or shore area or the 
environmental quality of any port, harbor, or navigable water of the 
United States. This condition could include but is not limited to, fire, 
explosion, grounding, leaking, damage, illness of a person on board, or 
a manning shortage.
    High seas means all waters that are neither territorial seas (the 
waters in a belt 3 nautical miles wide, that is adjacent to the coast 
and seaward of the territorial sea baseline) nor internal waters of the 
United States or of any foreign country.
    High speed craft means a craft that is operable on or above the 
water and has

[[Page 196]]

characteristics so different from those of conventional displacement 
ships, to which the existing international conventions, particularly 
SOLAS, apply, that alternative measures should be used to achieve an 
equivalent level of safety. In order to be considered a high speed 
craft, the craft must be capable of a maximum speed equal to or 
exceeding V=3.7 x displ.1667 h, where ``V'' is the maximum 
speed and ``displ'' is the vessel displacement corresponding to the 
design waterline in cubic meters.
    Independent laboratory means a laboratory accepted under part 159, 
Subpart 159.010 of this chapter.
    Inflatable survival craft or ``inflatable life jacket'' means one 
that depends upon nonrigid, gas-filled chambers for buoyancy, and which 
is normally kept uninflated until ready to use.
    Internal structural examination means an examination of the vessel 
while afloat or in drydock and consists of a complete examination of the 
vessel's main strength members, including the major internal framing, 
the hull plating, voids, and ballast tanks, but not including cargo, 
sewage, or fuel oil tanks.
    International voyage means a voyage between a country to which SOLAS 
applies and a port outside that country. A country, as used in this 
definition, includes every territory for the international relations of 
which a contracting government to the convention is responsible or for 
which the United Nations is the administering authority. For the U.S., 
the term ``territory'' includes the Commonwealth of Puerto Rico, all 
possessions of the United States, and all lands held by the United 
States under a protectorate or mandate. For the purposes of this 
subchapter, vessels are not considered as being on an ``international 
voyage'' when solely navigating the Great Lakes and the St. Lawrence 
River as far east as a straight line drawn from Cap des Rosiers to West 
Point, Anticosti Island and, on the north side of Anticosti Island, the 
63rd meridian.
    Lakes, bays, and sounds means a route on any of the following 
waters:
    (1) A lake other than the Great Lakes;
    (2) A bay;
    (3) A sound; or
    (4) Such other similar waters as may be designated by a Coast Guard 
District Commander.
    Launching appliance means a device for transferring a survival craft 
or rescue boat from its stowed position safely to the water. For a 
launching appliance using a davit, the term includes the davit, winch, 
and falls.
    Length when used in terms of the vessel's length (excluding bow 
sprits, bumpkins, rudders, outboard motor brackets, handles, and other 
similar fittings, attachments, and extensions), means:
    (1) The length listed on the vessel's Certificate of Documentation 
issued under the provisions of part 67 (Documentation of Vessels) of 
this chapter or Certificate of Number issued under the provisions of 33 
CFR part 173, subpart B (Numbering); or
    (2) For a vessel that does not have a Certificate of Documentation 
or a Certificate of Number, the ``registered length'' as defined in 
Sec. 69.53 in subchapter G of this chapter or, for a vessel that is less 
than 24 meters (79 feet) in overall length and is measured using 
simplified admeasurement, the registered length as defined in 
Sec. 69.203 in subchapter G of this chapter; or
    (3) For the purposes of part 179 in subchapter S, the ``length'' of 
a vessel with a bulbous bow means the larger of the length as defined in 
the first paragraph of this definition or the straight line horizontal 
measurement from the forwardmost tip of the bulbous bow to the aftermost 
part of the vessel measured parallel to the centerline.
    Length between perpendiculars or LBP means the horizontal distance 
measured between perpendiculars taken at the forwardmost and aftermost 
points on the waterline corresponding to the deepest operating draft.
    Limited coastwise means a route that is not more than 20 nautical 
miles from a harbor of safe refuge.
    Machinery space means a space including a trunk, alleyway, stairway, 
or duct to such a space, that contains:
    (1) Propulsion machinery of any type;
    (2) Steam or internal combustion machinery:
    (3) Oil transfer equipment;

[[Page 197]]

    (4) Electrical motors of more than 10 hp;
    (5) Refrigeration equipment;
    (6) One or more oil-fired boilers or heaters; or
    (7) Electrical generating machinery.
    Main transverse watertight bulkhead means a transverse bulkhead that 
must be maintained watertight in order for the vessel to meet the damage 
stability and subdivision requirements of this subchapter.
    Major conversion means a conversion of a vessel that, as determined 
by the Commandant:
    (1) Substantially changes the dimensions or carrying capacity of the 
vessel:
    (2) Changes the type of vessel;
    (3) Substantially prolongs the life of the vessel; or
    (4) Otherwise so changes the vessel that it is essentially a new 
vessel.
    Marine inspector or inspector means any civilian employee or 
military member of the Coast Guard assigned by an Officer in Charge, 
Marine Inspection, or the Commandant to perform duties with respect to 
the inspection, enforcement, and administration of vessel safety and 
navigation laws and regulations.
    Master means the individual having command of the vessel and who is 
the holder of a valid license that authorized the individual to serve as 
master of a small passenger vessel.
    Means of escape means a continuous and unobstructed way of exit 
travel from any point in a vessel to an embarkation station. A means of 
escape can be both vertical and horizontal, and include doorways, 
passageways, stairtowers, stairways, and public spaces. Cargo spaces, 
machinery spaces, rest rooms, hazardous areas determined by the 
cognizant Officer in Charge Marine Inspection, escalators, and elevators 
must not be any part of the means of escape.
    New OSV means an OSV--
    (1) That was contracted for, or the keel of which was laid, on or 
after March 15, 1996; or
    (2) That underwent a major conversion initiated on or after March 
15, 1996.
    New vessel means a vessel:
    (1) The initial construction of which began on or after March 11, 
1996;
    (2) Which was issued an initial Certificate of Inspection on or 
after September 11, 1996;
    (3) Which underwent a major conversion that was initiated on or 
after March 11, 1996; or
    (4) Which underwent a major conversion that was completed and for 
which an amended Certificate of Inspection was issued on or after 
September 11, 1996.
    Noncombustible material means any material approved in accordance 
with Sec. 164.009 in subchapter Q, of this chapter or other standard 
specified by the Commandant.
    Non-self-propelled vessel means a vessel that does not have 
installed means of propulsion, including propulsive machinery, masts, 
spars, or sails.
    Oceans means a route that is more than 20 nautical miles offshore on 
any of the following waters:
    (1) Any ocean;
    (2) The Gulf of Mexico;
    (3) The Caribbean Sea;
    (4) The Bering Sea;
    (5) The Gulf of Alaska; or
    (6) Such other similar waters as may be designated by a Coast Guard 
District Commander.
    Officer In Charge, Marine Inspection, or OCMI means an officer of 
the Coast Guard designated as such by the Commandant and who, under the 
direction of the Coast Guard District Commander, is in charge of a 
marine inspection zone, described in part 1 of this chapter, for the 
performance of duties with respect to the inspection, enforcement, and 
administration of vessel safety and navigation laws and regulations. The 
``cognizant OCMI'' is the OCMI that has immediate jurisdiction over a 
vessel for the purpose of performing the duties previously described.
    Offshore supply vessel (OSV) means a vessel that--
    (1) Is propelled by machinery other than steam;
    (2) Is of above 15 gross tons and of less than 500 gross tons (as 
measured under the Standard, Dual, or Simplified Measurement System 
under part 69, subpart C, D, or E, of this chapter), or is less than 
6,000 gross tons (as

[[Page 198]]

measured under the Convention Measurement System under part 69, subpart 
B, of this chapter); and
    (3) Regularly carries goods, supplies, or equipment in support of 
exploration, exploitation, or production of offshore mineral or energy 
resources.
    Open boat means a vessel not protected from entry of water by means 
of a complete weathertight deck, or by a combination of a partial 
weathertight deck and superstructure that is structurally suitable for 
the waters upon which the vessel operates.
    Open deck means a deck that is permanently open to the weather on 
one or more sides and, if covered, any spot on the overhead is less than 
4.5 meters (15 feet) from the nearest opening to the weather.
    Open to the atmosphere means a compartment that has at least 9,375 
square millimeters (15 square inches) of open area directly exposed to 
the atmosphere for each cubic meter (foot) of net compartment volume.
    Operating station means the principal steering station on the vessel 
from which the individual on duty normally navigates the vessel.
    Overnight accommodations or overnight accommodation space means an 
accommodation space for use by passengers or by crew members, which has 
one or more berths, including beds or bunks, for passengers or crew 
members to rest for extended periods. Staterooms, cabins, and berthing 
areas are normally overnight accommodation spaces. Overnight 
accommodations do not include spaces that contain only seats, including 
reclining seats.
    Partially enclosed space means a compartment that is neither open to 
the atmosphere nor an enclosed space.
    Partially protected waters is a term used in connection with 
stability criteria and means:
    (1) Waters not more than 20 nautical miles from the mouth of a 
harbor of safe refuge, unless determined by the cognizant OCMI to be 
exposed waters;
    (2) Those portions of rivers, estuaries, harbors, lakes, and similar 
waters that the cognizant OCMI determines not to be protected waters; 
and
    (3) Waters of the Great Lakes from April 16 through September 30 of 
the same year (summer season).
    Passenger means an individual carried on a vessel, except:
    (1) The owner or an individual representative of the owner, or in 
the case of a vessel under charter, an individual charterer or 
individual representative of the charterer;
    (2) The master; or
    (3) A member of the crew engaged in the business of the vessel who 
has not contributed consideration for carriage and who is paid for on 
board services.
    Passenger accommodation space means an accommodation space 
designated for the use of passengers.
    Passenger for hire means a passenger for whom consideration is 
contributed as a condition of carriage on the vessel, whether directly 
or indirectly flowing to the owner, charterer, operator, agent, or any 
other person having an interest in the vessel.
    Pilothouse control means that controls to start and stop the engines 
and control the direction and speed of the propeller of the vessel are 
located at the operating station.
    Piping system includes piping, fittings, and appurtenances as 
described in Sec. 56.07-5 in subchapter F of this chapter.
    Port light means a hinged glass window, generally circular, in a 
vessel's side or deckhouse for light and ventilation.
    Protected waters is a term used in connection with stability 
criteria and means sheltered waters presenting no special hazards such 
as most rivers, harbors, and lakes, and that is not determined to be 
exposed waters or partially protected waters by the cognizant OCMI.
    Pre-engineered means, when referring to a fixed gas fire 
extinguishing system, a system that is designed and tested to be 
suitable for installation without modification as a complete unit in a 
space of a set volume, regardless of the specific design of the vessel 
on which it is installed.
    Remotely operated vehicle (ROV) team, at a minimum, consist of an 
ROV operator, a non-destructive testing inspector, an ROV tender or 
mechanic, and a team supervisor who is considered by the Officer in 
Charge, Marine Inspection (OCMI), have the appropriate training and 
experience to perform the

[[Page 199]]

survey and to safely operate the ROV in an effective manor. The team 
must also have a hull-positioning technician present. This position may 
be assigned to a team member already responsible for another team duty.
    Rivers means a route on any of the following waters:
    (1) A river;
    (2) A canal; or
    (3) Such other similar waters as may be designated by a Coast Guard 
District Commander.
    Sailing vessel means a vessel principally equipped for propulsion by 
sail even if the vessel has an auxiliary means of propulsion.
    Scantlings means the dimensions of all structural parts such as 
frames, girders, and plating, used in building a vessel.
    Scupper means a pipe or tube of at least 30 millimeters (1.25 
inches) in diameter leading down from a deck or sole and through the 
hull to drain water overboard.
    Self-bailing cockpit means a cockpit, with watertight sides and 
floor (sole), which is designed to free itself of water by gravity 
drainage through scuppers.
    Shallow water is an ascertained water depth at which the uppermost 
deck(s) of a sunken vessel remain above the water's surface. The 
determination of the water's depth is made by the Officer in Charge, 
Marine Inspection (OCMI) who considers the vessel's stability (passenger 
heeling moment), the contour of the hull, the composition of the river 
bottom, and any other factors that would tend to prevent a vessel from 
resting an even keel.
    Ship's service loads means services necessary for maintaining the 
vessel in normal operational and habitable conditions. These loads 
include, but are not limited to, safety, lighting, ventilation, 
navigational, and communications loads.
    Short international voyage means an international voyage where:
    (1) The vessel is not more than 200 nautical miles from a port or 
place in which the passengers and crew could be placed in safety; and
    (2) The total distance between the last port of call in the country 
in which the voyage began and the final port of destination does not 
exceed 600 nautical miles.
    Stairway means an inclined means of escape between two decks.
    Steel or equivalent material means steel or any noncombustible 
material that, by itself or due to insulation provided, has structural 
and integrity properties equivalent to steel at the end of the standard 
fire test.
    Submersible vessel means a vessel that is capable of operating below 
the surface of the water.
    Survival craft means a lifeboat, rigid liferaft, inflatable 
liferaft, life float, inflatable buoyant apparatus, buoyant apparatus, 
or a small boat carried aboard a vessel in accordance with 
Sec. 180.200(b) of this subchapter.
    Switchboard means an electrical panel that receives power from a 
generator, battery, or other electrical power source and distributes 
power directly or indirectly to all equipment supplied by the generating 
plant.
    Third party examiner means an entity:
    (1) With a thorough knowledge of diving operations, including diving 
limitations as related to diver safety and diver supervision;
    (2) Having a familiarity with, but not limited to, the following--
    (i) The camera used during the AHE; and
    (ii) The NDT equipment used during the AHE, including the effect of 
water clarity, and marine growth in relation to the quality of the 
readings obtained;
    (3) Having a familiarity with the communications equipment used 
during the AHE;
    (4) Possessing the knowledge of vessel structures, design features, 
nomenclature, and the applicable AHE regulations; and
    (5) Able to present the Officer in Charge, Marine Inspection, with 
evidence of formal training, demonstrated ability, past acceptance, or a 
combination of these.
    Trunk means a vertical shaft or duct for the passage of pipes, 
wires, or other devices except that for the purposes of part 179 of this 
chapter, ``trunk'' means a large enclosed passageway through any deck or 
bulkhead of a vessel.
    Underwater Survey in Lieu of Drydocking (UWILD) means a program

[[Page 200]]

in which an eligible vessel may alternate between an underwater survey 
and the required drydock examinations.
    Vehicle space means a space not on an open deck, for the carriage of 
motor vehicles with fuel in their tanks, into and from which such 
vehicles can be driven and to which passengers have access.
    Vessel includes every description of watercraft or other artificial 
contrivance, used or capable of being used as a means of transportation 
on water.
    Vessel of the United States means a vessel documented or numbered 
under the laws of the United States, the states of the United States, 
Guam, Puerto Rico, the Virgin Islands, American Samoa, the District of 
Columbia, the Northern Mariana Islands, and any other territory or 
possession of the United States.
    Warm water means water where the monthly mean low water temperature 
is normally more than 15 degrees Celsius (59 degrees Fahrenheit).
    Watertight means designed and constructed to withstand a static head 
of water without any leakage, except that ``watertight'' for the 
purposes of electrical equipment means enclosed so that water does not 
enter the equipment when a stream of water from a hose with a nozzle one 
inch in diameter that delivers at least 246 liters (65 gallons) per 
minute is sprayed on the enclosure from any direction from a distance of 
ten feet for five minutes.
    Weather deck means a deck that is partially or completely exposed to 
the weather from above or from at least two sides, except that for the 
purposes of parts 178 and 179 of this chapter, ``weather deck'' means 
the uppermost deck exposed to the weather to which a weathertight 
sideshell extends.
    Weathertight means that water will not penetrate in any sea 
condition, except that ``weathertight equipment'' means equipment 
constructed or protected so that exposure to a beating rain will not 
result in the entrance of water.
    Well deck vessel means a vessel with a weather deck fitted with 
solid bulwarks that impede the drainage of water over the sides or a 
vessel with an exposed recess in the weather deck extending more than 
one-half of the length of the vessel measured over the weather deck.
    Wire means an individual insulated conductor without an outer 
protective jacket.
    Wood vessel means, for the purposes of subdivision and lifesaving 
equipment requirements in this subchapter, a traditionally-built, plank-
on-frame vessel, where mechanical fasteners (screws, nails, trunnels) 
are used to maintain hull integrity.
    Work space means a space, not normally occupied by a passenger, in 
which a crew member performs work and includes, but is not limited to, a 
galley, operating station, or machinery space.

[CGD 85-080, 61 FR 947, Jan. 10, 1996; 61 FR 20557, May 7, 1996, as 
amended by CGD 82-004 and CGD 86-074, 62 FR 49356, Sept. 19, 1997; CGD 
97-057, 62 FR 51049, Sept. 30, 1997; CGD 85-080, 62 FR 51355, Sept. 30, 
1997; 62 FR 64306, Dec. 5, 1997; 63 FR 65739, Dec. 15, 1997; USCG-1999-
4976, 65 FR 6508, Feb. 9, 2000; USCG-2000-7790, 65 FR 58464, Sept. 29, 
2000; USCG-1999-5040, 67 FR 34800, May 15, 2002; USCG-2000-6858, 67 FR 
21084, Apr. 29, 2002]



Sec. 175.540  Equivalents.

    (a) The Commandant may approve any arrangement, fitting, appliance, 
apparatus, equipment, calculation, information, or test, which provides 
a level of safety equivalent to that established by specific provisions 
of this subchapter. Requests for approval must be submitted to the 
Marine Safety Center via the cognizant OCMI. If necessary, the Marine 
Safety Center may require engineering evaluations and tests to 
demonstrate the equivalence of the substitute.
    (b) The Commandant may accept compliance by a high speed craft with 
the provisions of the International Maritime Organization (IMO) ``Code 
of Safety for High Speed Craft'' as an equivalent to compliance with 
applicable requirements of this subchapter. Requests for a determination 
of equivalency for a particular vessel must be submitted to the Marine 
Safety Center via the cognizant OCMI.
    (c) The Commandant may approve a novel lifesaving appliance or 
arrangement as an equivalent if it has performance characteristics at 
least equivalent to the appliance or arrangement required under this 
part, and:

[[Page 201]]

    (1) Is evaluated and tested under IMO Resolution A. 520(13), ``Code 
of Practice for the Evaluation, Testing and Acceptance of Prototype 
Novel Life-Saving Appliances and Arrangements''; or
    (2) Has successfully undergone an evaluation and tests that are 
substantially equivalent to those recommendations.
    (d) The Commandant may accept alternative compliance arrangements in 
lieu of specific provisions of the International Safety Management (ISM) 
Code (IMO Resolution A.741(18)) for the purpose of determining that an 
equivalent safety management system is in place on board a vessel. The 
Commandant will consider the size and corporate structure of a vessel's 
company when determining the acceptability of an equivalent system. 
Requests for determination of equivalency must be submitted to 
Commandant (G-MOC) via the cognizant OCMI.

[CGD 85-080, 61 FR 947, Jan. 10, 1996; 61 FR 24464, May 15, 1996, as 
amended by CGD 95-073, 62 FR 67515, Dec. 24, 1997]



Sec. 175.550  Special consideration.

    In applying the provisions of this subchapter, the OCMI may give 
special consideration to authorizing departures from the specific 
requirements when unusual circumstances or arrangements warrant such 
departures and an equivalent level of safety is provided. The OCMI of 
each marine inspection zone in which the vessel operates must approve 
any special consideration granted to a vessel.



Sec. 175.560  Appeals.

    Any person directly affected by a decision or action taken under 
this subchapter, by or on behalf of the Coast Guard, may appeal 
therefrom in accordance with Sec. 1.03 in subchapter A of this chapter.



Sec. 175.600  Incorporation by reference.

    (a) Certain material is incorporated by reference into this 
subchapter with the approval of the Director of the Federal Register in 
accordance with Title 5 United States Code (U.S.C.) 552(a) and Title 1 
Code of Federal Regulations (CFR) Part 51. To enforce any edition other 
than that specified in paragraph (b) of this section, the Coast Guard 
must publish a notice of change in the Federal Register and make the 
material available to the public. All approved material is on file at 
the Office of the Federal Register. 800 North Capitol Street NW., Suite 
700, Washington, DC, and at the U.S. Coast Guard, Office of Operating 
and Environmental Standards (G-MSO), 2100 Second Street SW., Washington, 
DC 20593-0001 and is available from the sources indicated in paragraph 
(b) of this section.
    (b) The material approved for incorporation by reference in this 
subchapter and the sections affected are:

American Boat and Yacht Council
 (ABYC), 3069 Solomons Island
 Rd., Edgewater, MD 21037
    A-1-93--Marine Liquefied       184.240
     Petroleum Gas (LPG) Systems.
    A-3-93--Galley Stoves........  184.200
    A-7-70--Boat Heating Systems.  184.200
    A-16-89--Electric Navigation   183.130
     Lights.
    A-22-93--Marine Compressed     184.240
     Natural Gas (CNG) Systems.
    E-8-94--Alternating Current    183.130
     (AC) Electrical Systems on
     Boats.
    E-9-90--Direct Current (DC)    183.130
     Electrical Systems on Boats.
    H-2-89--Ventilation of Boats   182.130; 182.460
     Using Gasoline.
    H-22-86--DC Electric Bilge     182.130; 182.500
     Pumps Operating Under 50
     Volts.
    H-24-93--Gasoline Fuel         182.130; 182.440; 182.445; 182.450;
     Systems.                       182.455
    H-25-94--Portable Gasoline     182.130; 182.458
     Fuel Systems for Flammable
     Liquids.

[[Page 202]]

 
    H-32-87--Ventilation of Boats  182.130; 182.465; 182.470
     Using Diesel Fuel.
    H-33-89--Diesel Fuel Systems.  182.130; 182.440; 182.445; 182.450;
                                    182.455
    P-1-93--Installation of        177.405; 177.410; 182.130; 182.425;
     Exhaust Systems for            182.430
     Propulsion and Auxiliary
     Engines.
    P-4-89--Marine Inboard         182.130; 182.420
     Engines.
 
American Bureau of Shipping
 (ABS), ABS Plaza, 16855
 Northchase Drive, Houston, TX
 77060
    Guide for High Speed Craft,    177.300
     1997.
    Rules for Building and         177.300
     Classing Aluminum Vessels,
     1975.
    Rules for Building and         177.300
     Classing Reinforced Plastic
     Vessels, 1978.
    Rules for Building and         182.410; 183.360
     Classing Steel Vessels, 1995.
    Rules for Building and         177.300
     Classing Steel Vessels Under
     61 Meters (200 feet) in
     Length, 1983.
    Rules for Building and         177.300
     Classing Steel Vessels for
     Service on Rivers and
     Intracoastal Waterways, 1995.
 
American National Standards
 Institute (ANSI), 11 West 42nd
 Street, New York, NY 10036
    A 17.1-1984, including         183.540
     supplements A 17.1a and b-
     1985--Safety Code for
     Elevators and Escalators.
    B 31.1-1986--Code for          182.710
     Pressure Piping, Power
     Piping.
    Z 26.1-1977, including 1980    177.1030
     supplement--Safety Glazing
     Materials For Glazing Motor
     Vehicles Operating on Land
     Highways.
 
American Society for Testing and
 Materials (ASTM), 100 Barr
 Harbor Drive, West Conshohocken,
 PA 19428-2959.
    ASTM B 96-93, Standard         182.440
     Specification for Copper-
     Silicon Alloy Plate, Sheet,
     Strip, and Rolled Bar for
     General Purposes and
     Pressure Vessels.
    ASTM B 117-97, Standard        175.400
     Practice for Operating Salt
     Spray (Fog) Apparatus.
    ASTM B 122/B 122M-95,          182.440
     Standard Specification for
     Copper-Nickel-Tin Alloy,
     Copper-Nickel-Zinc Alloy
     (Nickel Silver), and Copper-
     Nickel Alloy Plate, Sheet,
     Strip and Rolled Bar.
    ASTM B 127-98, Standard        182.440
     Specification for Nickel-
     Copper Alloy (UNS NO4400)
     Plate, Sheet, and Strip.
    ASTM B 152-97a, Standard       182.440
     Specification for Copper
     Sheet, Strip, Plate, and
     Rolled Bar.
    ASTM B 209-96, Standard        182.440
     Specification for Aluminum
     and Aluminum-Alloy Sheet and
     Plate.
    ASTM D 93-97, Standard Test    175.400
     Methods for Flash Point by
     Pensky-Martens Closed Cup
     Tester.
    ASTM D 635-97, Standard test   182.440
     Method for Rate of Burning
     and or Extent and Time of
     Burning of Self-Supporting
     Plastics in a Horizontal
     Position.
    ASTM D 2863-95, Standard       182.440
     Method for Measuring the
     Minimum Oxygen Concentration
     to Support Candle-Like
     Combustion of Plastics
     (Oxygen Index).
    ASTM E 84-98, Standard Test    177.410
     Method for Surface Burning
     Characteristics of Building
     Materials.

[[Page 203]]

 
Institute of Electrical and
 Electronics Engineers, Inc.
 (IEEE), IEEE Service Center, 445
 Hoes Lane, Piscataway, NJ 08854
    Standard 45-1977--Recommended  183.340
     Practice for Electrical
     Installations on Shipboard.
 
International Maritime
 Organization (IMO),
 International Maritime
 Organization, Publications
 Section, 4 Albert Embankment,
 London SE1 7SR, United Kingdom
    Code of Practice for the       175.540(c)
     Evaluation, Testing and
     Acceptance of Prototype
     Novel Life-Saving Appliances
     and Arrangements--Resolution
     A.520(13), dated 17 November
     1983.
    Use and Fitting of Retro-      185.604
     Reflective Materials on Life-
     Saving Appliances--
     Resolution A.658(16), dated
     20 November 1989.
    Fire Test Procedures For       177.405
     Ignitability of Bedding
     Components, Resolution
     A.688(17), dated 06 November
     1991.
    Symbols Related to Life-       185.604(g)
     Saving Appliances and
     Arrangements, Resolution
     A.760(18), dated 17 November
     1993.
 
Lloyd's Register of Shipping, 17
 Battery Place, Suite 1013, New
 York, NY 10004
    Rules and Regulations for the  177.300
     Classification of Yachts and
     Small Craft, as amended
     through 1983.
 
National Fire Protection
 Association (NFPA), 1
 Batterymarch Park, Quincy, MA
 02269-9101
    NFPA 10-1994--Portable Fire    176.810
     Extinguishers.
    NFPA 17-1994--Dry Chemical     181.425
     Extinguishing Systems.
    NFPA 17A-1994--Wet Chemical    181.425
     Extinguishing Systems.
    NFPA 70-1996--National
     Electrical Code (NEC)
        Section 250-95...........  183.370
        Section 310-13...........  183.340
        Section 310-15...........  183.340
        Article 430..............  183.320
        Article 445..............  183.320
    NFPA 302-1994--Pleasure and    184.200; 184.240
     Commercial Motor Craft,
     Chapter 6.
    NFPA 306-1993--Control of Gas  176.710
     Hazards on Vessels.
    NFPA 1963-1989--Fire Hose      181.320
     Connections.
 
Naval Publications and Forms
 Center, Customer Service Code
 1052, 5801 Tabor Ave.,
 Philadelphia, PA 19120
    Military Specification MIL-P-  179.240
     21929C (1991)--Plastic
     Material, Cellular
     Polyurethane, Foam-in-Place,
     Rigid (2 and 4 pounds per
     cubic foot).
 
    Military Specification MIL-R-
     21607E(SH) (1990)
        Resins, Polyester, Low     177.410
         Pressure Laminating,
         Fire Retardant.
Society of Automotive Engineers
 (SAE), 400 Commonwealth Drive,
 Warrendale, PA 15096-0001
    SAE J-1475--Hydraulic Hose     182.720
     Fittings For Marine
     Applications, 1984.

[[Page 204]]

 
    SAE J-1928--Devices Providing  182.415
     Backfire Flame Control for
     Gasoline Engines in Marine
     Applications, August 1989.
    SAE J-1942--Hose and Hose      182.720
     Assemblies for Marine
     Applications, 1992.
 
Underwriters Laboratories Inc.
 (UL), 12 Laboratory Drive,
 Research Triangle Park, NC 27709
    UL 19-1992--Lined Fire Hose    181.320
     and Hose Assemblies.
    UL 174-1989, as amended        182.320
     through June 23, 1994--
     Household Electric Storage
     Tank Heaters.
    UL 217-1993--Single and        181.450
     Multiple Station Smoke
     Detectors.
    UL 486A-1992--Wire Connectors  183.340
     and Soldering Lugs For Use
     With Copper Conductors.
    UL 489-1995--Molded--Case      183.380
     Circuit Breakers and Circuit
     Breaker Enclosures.
    UL 595-1991--Marine Type       183.410
     Electric Lighting Fixtures.
    UL 710-1990, as amended        181.425
     through September 16, 1993--
     Exhaust Hoods For Commercial
     Cooking Equipment.
    UL 1058-1989, as amended       181.410
     through April 19, 1994--
     Halogenated Agent
     Extinguishing System Units.
    UL 1102-1992--Non integral     182.440
     Marine Fuel Tanks.
    UL 1110-1988, as amended       182.480
     through May 16, 1994--Marine
     Combustible Gas Indicators.
    UL 1111-1988--Marine           182.415
     Carburetor Flame Arresters.
    UL 1453-1988, as amended       182.320
     through June 7, 1994--
     Electric Booster and
     Commercial Storage Tank
     Water Heaters.
    UL 1570-1995--Fluorescent      183.410
     Lighting Fixtures.
    UL 1571-1995--Incandescent     183.410
     Lighting Fixtures.
    UL 1572-1995--High Intensity   183.410
     Discharge Lighting Fixtures.
    UL 1573-1995--Stage and        183.410
     Studio Lighting Units.
    UL 1574-1995--Track Lighting   183.410
     Systems.
 

[CGD 85-080, 61 FR 947, Jan. 10, 1996, as amended by CGD 96-041, 61 FR 
50734, Sept. 27, 1996; CGD 97-057, 62 FR 51049, Sept. 30, 1997; CGD 85-
080, 62 FR 51355, Sept. 30, 1997; USCG-1999-5151, 64 FR 67186, Dec. 1, 
1999; USCG-2000-7790, 65 FR 58465, Sept. 29, 2000]



Sec. 175.800  Approved equipment and material.

    (a) Equipment and material that is required by this subchapter to be 
approved or of an approved type, must have been manufactured and 
approved in accordance with the design and testing requirements in 
subchapter Q (Equipment, Construction, and Materials: Specifications and 
Approval) of this chapter or as otherwise specified by the Commandant.
    (b) Coast Guard publication COMDTINST M16714.3 (Series) ``Equipment 
Lists, Items Approved, Certificated or Accepted under Marine Inspection 
and Navigation Laws'' lists approved equipment by type and manufacturer. 
COMDTINST M16714.3 (Series) may be obtained from New Orders, 
Superintendent of Documents, P.O. Box 371954, Pittsburgh, PA 15250-7954.

[CGD 85-080, 61 FR 947, Jan. 10, 1996, as amended at 62 FR 51355, Sept. 
30, 1997]



Sec. 175.900  OMB control numbers.

    (a) Purpose. This section lists the control numbers assigned to 
information collection and recordkeeping requirements in this subchapter 
by the Office of Management and Budget (OMB) pursuant to the Paperwork 
Reduction Act of 1980 (44 U.S.C. 3501 et. seq.). The Coast Guard intends 
that this

[[Page 205]]

section comply with the requirements of 44 U.S.C. 3507(f) which requires 
that agencies display a current control number assigned by the Director 
of OMB for each approved agency information collection requirement.
    (b) Display.

------------------------------------------------------------------------
  46 CFR Section where identified         Current OMB Control Number
------------------------------------------------------------------------
                176.105(a)                            2115-0578
                   176.202                            2115-0578
                   176.204                            2115-0578
                   176.302                            2115-0578
                   176.306                            2115-0578
                   176.310                            2115-0578
                176.500(a)                            2115-0578
                   176.612                            2115-0578
                   176.700                            2115-0578
                   176.704                            2115-0578
                   176.710                            2115-0578
                176.810(b)                            2115-0578
                176.920(c)                            2115-0578
                   176.930                            2115-0578
                   177.202                            2115-0578
                   177.315                            2115-0589
                   177.330                            2115-0578
                   177.335                            2115-0589
                   177.340                            2115-0578
                   178.210                            2115-0578
                   178.220                            2115-0559
                   178.230                            2115-0559
                   181.610                            2115-0578
                182.460(e)                            2115-0578
                182.610(f)                            2115-0578
                183.220(d)                            2115-0578
       183.320 (d) and (e)                            2115-0578
                   184.420                            2115-0578
                   184.506                            2115-0578
                   185.202                            2115-0003
                   185.206                            2115-0003
                   185.208                            2115-0578
                   185.220                            2115-0578
                   185.230                            2115-0578
                   185.280                            2115-0578
                185.340(c)                            2115-0578
                   185.402                            2115-0578
                   185.420                                (\1\)
                   185.502                            2115-0578
                   185.503                            2115-0578
                   185.504                            2115-0578
                   185.506                            2115-0578
                   185.510                            2115-0578
                   185.514                            2115-0578
                   185.516                            2115-0578
                   185.518                            2115-0578
                   185.520                                (\1\)
                   185.524                                (\1\)
                   185.602                            2115-0578
                   185.604                            2115-0578
                   185.606                            2115-0578
                   185.608                            2115-0578
                   185.610                            2115-0578
                   185.612                            2115-0578
                   185.702                            2115-0578
                185.704(c)                            2115-0578
                185.728(c)                                (\1\)
------------------------------------------------------------------------
\1\ Will be displayed when assigned by OMB.



PART 176--INSPECTION AND CERTIFICATION--Table of Contents




                  Subpart A--Certificate of Inspection

Sec.
176.100  When required.
176.103  Description.
176.105  How to obtain or renew.
176.107  Period of validity for a Certificate of Inspection.
176.110  Routes permitted.
176.112  Total persons permitted.
176.113  Passengers permitted.
176.114  Alternative requirements for a vessel operating as other than a 
          small passenger vessel.
176.120  Certificate of Inspection amendment.

               Subpart B--Special Permits and Certificates

176.202  Permit to proceed.
176.204  Permit to carry excursion party.

   Subpart C--Posting of Certificates, Permits, and Stability Letters

176.302  Certificates and permits.
176.306  Stability letter.
176.310  Certification Expiration Date Stickers.

                 Subpart D--Inspection for Certification

176.400  General.
176.402  Initial inspection for certification.
176.404  Subsequent inspections for certification.

                         Subpart E--Reinspection

176.500  When required.
176.502  Certificate of Inspection: Conditions of validity.

               Subpart F--Hull and Tailshaft Examinations

176.600  Drydock examination, internal structural examination, and 
          underwater survey intervals.
176.610  Scope of drydock and internal structural examinations.
176.615  Underwater Survey in Lieu of Drydocking (UWILD).
176.620  Description of the Alternative Hull Examination (AHE) Program 
          for certain passenger vessels.
176.625  Eligibility requirements for the Alternative Hull Examination 
          (AHE) Program for certain passenger vessels.
176.630  The Alternative Hull Examination (AHE) Program application.
176.635  Preliminary examination requirements.
176.640  Pre-Survey meeting.

[[Page 206]]

176.645  AHE Procedure.
176.650  Alternative Hull Examination Program options: Divers or 
          underwater ROV.
176.655  Hull examination reports.
176.660  Continued participation in the Alternative Hull Examination 
          (AHE) Program.
176.665  Notice and plans required.
176.670  Tailshaft examinations.
176.675  Extension of examination intervals.

                   Subpart G--Repairs and Alterations

176.700  Permission for repairs and alterations.
176.702  Installation tests and inspections.
176.704  Breaking of safety valve seals.
176.710  Inspection and testing prior to hot work.

                     Subpart H--Material Inspections

176.800  Inspection standards.
176.801  Notice of inspection deficiencies and requirements.
176.802  Hull.
176.804  Machinery.
176.806  Electrical.
176.808  Lifesaving.
176.810  Fire protection.
176.812  Pressure vessels and boilers.
176.814  Steering systems.
176.816  Miscellaneous systems and equipment.
176.818  Sanitary inspection.
176.830  Unsafe practices.
176.840  Additional tests and inspections.

Subpart I--International Convention for Safety of Life at Sea, 1974, as 
                             Amended (SOLAS)

176.900  Applicability.
176.910  Passenger Ship Safety Certificate.
176.920  Exemptions.
176.925  Safety Management Certificate.
176.930  Equivalents.

    Authority: 33 U.S.C. 1321(j); 46 U.S.C. 2103, 3205, 3306, 3307; 49 
U.S.C. App. 1804; E.O. 11735, 38 FR 21243, 3 CFR, 1971-1975 Comp., p. 
743; E.O. 12234, 45 FR 58801, 3 CFR, 1980 Comp., p. 277; 49 CFR 1.46.

    Source: CGD 85-080, 61 FR 953, Jan. 10, 1996, unless otherwise 
noted.



                  Subpart A--Certificate of Inspection



Sec. 176.100  When required.

    (a) A vessel to which this subchapter applies may not be operated 
without having on board a valid U.S. Coast Guard Certificate of 
Inspection.
    (b) Except as noted in Sec. 176.114 of this part, each vessel 
inspected and certificated under the provisions of this subchapter must, 
when any passengers are aboard during the tenure of the certificate, be 
in full compliance with the terms of the certificate.
    (c) If necessary to prevent delay of the vessel, a temporary 
Certificate of Inspection may be issued pending the issuance and 
delivery of the regular Certificate of Inspection. The temporary 
certificate must be carried in the same manner as the regular 
certificate and is considered the same as the regular Certificate of 
Inspection that it represents.
    (d) A vessel on a foreign voyage between a port in the United States 
and a port in a foreign country, whose Certificate of Inspection expires 
during the voyage, may lawfully complete the voyage without a valid 
Certificate of Inspection provided the voyage is completed within 30 
days of expiration and the certificate did not expire within 15 days of 
sailing on the foreign voyage from a U.S. port.

[CGD 85-080, 61 FR 953, Jan. 10, 1996; 61 FR 20557, May 7, 1996]



Sec. 176.103  Description.

    The Certificate of Inspection issued to a vessel describes the 
vessel, the route(s) that it may travel, the minimum manning 
requirements, the survival and rescue craft carried, the minimum fire 
extinguishing equipment and lifejackets required to be carried, the 
maximum number of passengers and total persons that may be carried, the 
number of passengers the vessel may carry in overnight accommodation 
spaces, the name of the owner and managing operator, any equivalencies 
accepted or authorized by the Commandant or any Officer in Charge, 
Marine Inspection (OCMI) in accordance with Secs. 175.540 or 175.550 of 
this chapter, and such other conditions of operations as may be 
determined by the cognizant OCMI.



Sec. 176.105  How to obtain or renew.

    (a) A Certificate of Inspection is obtained or renewed by making 
application on Form CG 3752, ``Application for Inspection of U.S. 
Vessel,'' to the Coast Guard OCMI of the marine inspection zone in which 
the inspection is to be made. Form CG-3752 may be obtained

[[Page 207]]

at any U.S. Coast Guard Marine Safety Office or Marine Inspection 
Office.
    (b) The application for initial inspection of a vessel being newly 
constructed or converted must be submitted prior to the start of the 
construction or conversion.
    (c) The construction, arrangement, and equipment of each vessel must 
be acceptable to the cognizant OCMI as a prerequisite of the issuance of 
the initial Certificate of Inspection. Acceptance is based on the 
information, specifications, drawings and calculations available to the 
OCMI, and on the successful completion of an initial inspection for 
certification.
    (d) A Certificate of Inspection is renewed by the issuance of a new 
Certification of Inspection.
    (e) The condition of the vessel and its equipment must be acceptable 
to the cognizant OCMI as a prerequisite to the Certificate of Inspection 
renewal. Acceptance is based on the condition of the vessel as found at 
the periodic inspection for certification.

[CGD 85-080, 61 FR 953, Jan. 10, 1996; 61 FR 20557, May 7, 1996]



Sec. 176.107  Period of validity for a Certificate of Inspection.

    (a) A Certificate of Inspection is valid for 1 year for vessels 
carrying more than 12 passengers on international voyages.
    (b) A Certificate of Inspection is valid for 5 years for all other 
vessels.
    (c) A Certificate of Inspection may be suspended and withdrawn or 
revoked by the cognizant OCMI at any time for noncompliance with the 
requirements of this subchapter.

[USCG-1999-4976, 65 FR 6508, Feb. 9, 2000]



Sec. 176.110  Routes permitted.

    (a) The area of operation for each vessel and any necessary 
operational limits are determined by the cognizant OCMI, and recorded on 
the vessel's Certificate of Inspection. Each area of operation, referred 
to as a route, is described on the Certificate of Inspection under the 
major headings ``Oceans,'' ``Coastwise,'' ``Limited Coastwise,'' ``Great 
Lakes,'' ``Lakes, Bays, and Sounds,'' or ``Rivers,'' as applicable. 
Further limitations imposed or extensions granted are described by 
reference to bodies of waters, geographical points, distance from 
geographical points, distances from land, depths of channel, seasonal 
limitations, and similar factors.
    (b) Operation of a vessel on a route of lesser severity than those 
specifically described or designated on the Certificate of Inspection is 
permitted unless expressly prohibited on the Certificate of Inspection. 
The general order of severity of routes is: oceans, coastwise, limited 
coastwise, Great Lakes, lakes, bays, and sounds, and rivers. The 
cognizant OCMI may prohibit a vessel from operating on a route of lesser 
severity than the primary route a vessel is authorized to operate on if 
local conditions necessitate such a restriction.
    (c) Non-self-propelled vessels are prohibited from operating on an 
oceans, coastwise, limited coastwise, or Great Lakes route unless the 
Commandant approves such a route.
    (d) When designating a permitted route or imposing any operational 
limits on a vessel, the OCMI may consider:
    (1) Requirements of this subchapter for which compliance is based on 
the route of the vessel;
    (2) The performance capabilities of the vessel based on design, 
scantlings, stability, subdivision, propulsion, speed, operating modes, 
maneuverability, and other characteristics; and
    (3) The suitability of the vessel for nighttime operations and use 
in all weather conditions.

[CGD 85-080, 61 FR 953, Jan. 10, 1996; 61 FR 20557, May 7, 1996]



Sec. 176.112  Total persons permitted.

    The cognizant OCMI determines the total number of persons permitted 
to be carried on a vessel. In determining the total number of persons 
permitted to be carried, the OCMI may consider stability restrictions 
and subdivision requirements of the vessel, the vessel's route, general 
arrangement, means of escape, lifesaving equipment, the minimum manning 
requirements, and the maximum number of passengers permitted in 
accordance with Sec. 176.113.



Sec. 176.113  Passengers permitted.

    (a) The maximum number of passengers permitted must be not more

[[Page 208]]

than that allowed by the requirements of this section, except as 
authorized by the OCMI under paragraph (d) of this section.
    (b) The maximum number of passengers permitted on any vessel may be 
the greatest number permitted by the length of rail criterion, deck area 
criterion, or fixed seating criterion described in this paragraph or a 
combination of these criteria as allowed by paragraph (c) of this 
section.
    (1) Length of rail criterion. One passenger may be permitted for 
each 760 millimeters (30 inches) of rail space available to the 
passengers at the periphery of each deck. The following rail space may 
not be used in determining the maximum number of passengers permitted:
    (i) Rail space in congested areas unsafe for passengers, such as 
near anchor handling equipment or line handling gear, in the way of sail 
booms, running rigging, or paddle wheels, or along pulpits;
    (ii) Rail space on stairways; and
    (iii) Rail space where persons standing in the space would block the 
vision of the licensed individual operating the vessel.
    (2) Deck area criterion. One passenger may be permitted for each 0.9 
square meters (10 square feet) of deck area available for the 
passengers' use. In computing such deck area, the areas occupied by the 
following must be excluded;
    (i) Areas for which the number of persons permitted is determined 
using the fixed seating criteria;
    (ii) Obstructions, including stairway and elevator enclosures, 
elevated stages, bars, and cashier stands, but not including slot 
machines, tables, or other room furnishings;
    (iii) Toilets and washrooms;
    (iv) Spaces occupied by and necessary for handling lifesaving 
equipment, anchor handling equipment or line handling gear, or in the 
way of sail booms or running rigging;
    (v) Spaces below deck that are unsuitable for passengers or that 
would not normally be used by passengers;
    (vi) Interior passageways less than 840 millimeters (34 inches) wide 
and passageways on open deck, less than 710 millimeters (28 inches) 
wide;
    (vii) Bow pulpits, swimming platforms and areas that do not have a 
solid deck, such as netting on multi-hull vessels;
    (viii) Deck areas in way of paddle wheels; and
    (ix) Aisle area provided in accordance with Sec. 177.820(d) in this 
subchapter.
    (3) Fixed seating criterion. One passenger may be permitted for each 
455 millimeter (18 inches) of width of fixed seating provided by 
Sec. 177.820 of this subchapter. Each sleeping berth in overnight 
accommodation spaces shall be counted as only one seat.
    (c) Different passenger capacity criteria may be used on each deck 
of a vessel and added together to determine the total passenger capacity 
of that vessel. Where seats are provided on part of a deck and not on 
another, the number of passengers permitted on a vessel may be the sum 
of the number permitted by the seating criterion for the space having 
seats and the number permitted by the deck area criterion for the space 
having no seats. The length of rail criterion may not be combined with 
either the deck area criterion or the fixed seating criterion when 
determining the maximum number of passengers permitted on an individual 
deck.
    (d) For a vessel operating on short runs on protected waters such as 
a ferry, the cognizant OCMI may give special consideration to increases 
in passenger allowances.



Sec. 176.114  Alternative requirements for a vessel operating as other than a small passenger vessel.

    (a) When authorized by the cognizant OCMI by an endorsement of the 
vessel's Certificate of Inspection, a small passenger vessel carrying 
six or less passengers, or operating as a commercial fishing vessel or 
other uninspected vessel, or carrying less than twelve passengers and 
operating as a recreational vessel, need not meet requirements of:
    (1) Subparts C, D, and E, of part 180 of this chapter if the vessel 
is in satisfactory compliance with the lifesaving equipment regulations 
for an uninspected vessel or recreational vessel in a similar service;
    (2) Subpart C of part 177, and parts 178 and 179 of this chapter if 
the vessel

[[Page 209]]

is in satisfactory compliance with applicable regulations for an 
uninspected vessel or recreational vessel in a similar service or if the 
owner of the vessel otherwise establishes to the satisfaction of the 
cognizant OCMI that the vessel is seaworthy for the intended service; 
and
    (3) Sections 184.404 and 184.410 of this chapter providing the 
vessel is in satisfactory compliance with applicable regulations for an 
uninspected or recreational vessel in a similar service.
    (b) A vessel operating under the alternative regulations of 
paragraph (a) of this section must:
    (1) Not alter the arrangement of the vessel nor remove any equipment 
required by the certificate for the intended operation, without the 
consent of the cognizant OCMI;
    (2) Comply with the minimum manning specified on the Certificate of 
Inspection, which may include reduced manning depending on the number of 
passengers and operation of the vessel;
    (3) When carrying from one to six passengers, except for a vessel 
being operated as a recreational vessel, make the announcement required 
by Sec. 185.506(a) of this chapter before getting underway; and
    (4) If a vessel of more than 15 gross tons, not carry freight for 
hire.
    (c) The endorsement issued under paragraph (a) of this section must 
indicate the route, maximum number of passengers, and the manning 
required to operate under the provisions of this section.

[CGD 85-080, 61 FR 953, Jan. 10, 1996, as amended by CGD 97-057, 62 FR 
51049, Sept. 30, 1997]



Sec. 176.120  Certificate of Inspection amendment.

    (a) An amended Certificate of Inspection may be issued at any time 
by any OCMI. The amended Certificate of Inspection replaces the 
original, but the expiration date remains the same as that of the 
original. An amended Certificate of Inspection may be issued to 
authorize and record a change in the dimensions, gross tonnage, owner, 
managing operator, manning, persons permitted, route permitted, 
conditions of operations, or equipment of a vessel, from that specified 
in the current Certificate of Inspection.
    (b) A request for an amended Certificate of Inspection must be made 
to the cognizant OCMI by the owner or managing operator of the vessel at 
any time there is a change in the character of a vessel or in its route, 
equipment, ownership, operation, or similar factors specified in its 
current Certificate of Inspection.
    (c) The OCMI may require an inspection prior to the issuance of an 
amended Certificate of Inspection.



               Subpart B--Special Permits and Certificates



Sec. 176.202  Permit to proceed.

    (a) When a vessel is not in compliance with its Certificate of 
Inspection or fails to comply with a regulation of this subchapter, the 
cognizant OCMI may permit the vessel to proceed to another port for 
repair, if in the judgment of the OCMI, the trip can be completed 
safely, even if the Certificate of Inspection of the vessel has expired 
or is about to expire.
    (b) Form CG-948, ``Permit to Proceed to another Port for Repairs,'' 
may be issued by the cognizant OCMI to the owner, managing operator, or 
the master of the vessel stating the conditions under which the vessel 
may proceed to another port. The permit may be issued only upon the 
written application of the owner, managing operator, or master, and 
after the vessel's Certificate of Inspection is turned over tot he OCMI.
    (c) A vessel may not carry passengers when operating in accordance 
with a permit to proceed, unless the cognizant OCMI determines that it 
is safe to do so.



Sec. 176.204  Permit to carry excursion party.

    (a) The cognizant OCMI may permit a vessel to engage in a temporary 
excursion operation with a greater number of persons or on a more 
extended route, or both, than permitted by its Certificate of Inspection 
when, in the opinion of the OCMI, the operation can be undertaken 
safely.
    (b) Upon the written application of the owner or managing operator 
of the vessel, the cognizant OCMI may issue a

[[Page 210]]

Form CG-949, ``Permit To Carry Excursion Party,'' to indicate his or her 
permission to carry an excursion party. The OCMI will indicate on the 
permit the conditions under which it is issued, the number of persons 
the vessel may carry, the crew required, any additional lifesaving or 
safety equipment required, the route for which the permit is granted, 
and the dates on which the permit is valid.
    (c) The number of passengers normally permitted on an excursion 
vessel shall be governed by Sec. 176.113.
    (d) The OCMI will not normally waive the applicable minimum safety 
standards when issuing an excursion permit. In particular, a vessel that 
is being issued an excursion permit will normally be required to meet 
the minimum stability, survival craft, life jacket, fire safety, and 
manning standards applicable to a vessel in the service for which the 
excursion permit is requested.
    (e) The permit acts as a temporary, limited duration supplement to 
the vessel's Certificate of Inspection and must be carried with the 
Certificate of Inspection. A vessel operating under a permit to carry an 
excursion party must be in full compliance with the terms of its 
Certificate of Inspection as supplemented by the permit.
    (f) The OCMI may require an inspection prior to the issuance of a 
permit to carry an excursion party.



   Subpart C--Posting of Certificates, Permits, and Stability Letters



Sec. 176.302  Certificates and permits.

    The Certificate of Inspection and any SOLAS Certificates must be 
posted under glass or other suitable transparent material, such that all 
pages are visible, in a conspicuous place on the vessel where 
observation by passengers is likely. If posting is impracticable, such 
as in an open boat, the certificates must be kept on board in a 
weathertight container readily available for use by the crew and display 
to passengers and others on request.

[CGD 85-080, 61 FR 953, Jan. 10, 1996, as amended by CGD 97-057, 62 FR 
51049, Sept. 30, 1997]



Sec. 176.306  Stability letter.

    When, in accordance with Sec. 178.210 of this chapter, a vessel must 
be provided with a stability letter, the stability letter must be posted 
under glass or other suitable transparent material, such that all pages 
are visible, at the operating station of the vessel. If posting is 
impracticable, the stability letter must be kept on board in a 
weathertight container readily available for use by the crew and display 
to passengers and others on request.

[CGD 85-080, 61 FR 953, Jan. 10, 1996, as amended by CGD 97-057, 62 FR 
51049, Sept. 30, 1997]



Sec. 176.310  Certification Expiration Date Stickers.

    (a) A Certification Expiration Date Sticker indicates the date upon 
which the vessel's Certificate of Inspection expires and is provided by 
the cognizant OCMI in the number required, upon issuance or renewal of 
the Certificate of Inspection.
    (b) A vessel that is issued a Certificate of Inspection under the 
provisions of this subchapter must be not be operated without a valid 
Certification Expiration Date Sticker affixed to the vessel on a place 
that is:
    (1) A glass or other smooth surface from which the sticker may be 
removed without damage to the vessel;
    (2) Readily visible to each passenger prior to boarding the vessel 
and to patrolling Coast Guard law enforcement personnel; and
    (3) Acceptable to the Coast Guard marine inspector.
    (c) The Coast Guard marine inspector may require the placement of 
more than one sticker in order to insure compliance with paragraph 
(b)(2) of this section.

[CGD 85-080, 61 FR 953, Jan. 10, 1996; 61 FR 20557, May 7, 1996]



                 Subpart D--Inspection for Certification



Sec. 176.400  General.

    (a) An inspection is required before the issuance of a Certificate 
of Inspection. Such an inspection for certification is not made until 
after receipt

[[Page 211]]

of the application for inspection required by Sec. 176.105.
    (b) Upon receipt of a written application for inspection, the 
cognizant OCMI assigns a marine inspector to inspect the vessel for 
compliance with this subchapter at a time and place mutually agreed upon 
by the OCMI and the owner, managing operator, or representative thereof.
    (c) The owner, managing operator, or a representative thereof shall 
be present during the inspection.

[CGD 85-080, 61 FR 953, Jan. 10, 1996; 61 FR 20557, May 7, 1996, as 
amended at 62 FR 51356, Sept. 30, 1997]



Sec. 176.402  Initial inspection for certification.

    (a) Before construction or conversion of a vessel intended for small 
passenger vessel service, the owner of the vessel shall submit plans, 
manuals, and calculations indicating the proposed arrangement, 
construction, and operations of the vessel, to the cognizant OCMI for 
approval, except when submitted to the Marine Safety Center (MSC) as 
allowed by part 177 of this subchapter. The plan, manuals, and 
calculations required to be submitted and the disposition of these plans 
are set forth in part 177, Subpart B of this chapter.
    (b) The initial inspection is conducted to determine that the vessel 
and its equipment comply with applicable regulations and that the vessel 
was built or converted in accordance with approved plans, manuals, and 
calculations. Additionally, during the inspection, the materials, 
workmanship, and condition of all parts of the vessel and its machinery 
and equipment may be checked to determine if the vessel is satisfactory 
in all respects for the service intended.
    (c) The owner or managing operator of a vessel shall ensure that the 
vessel complies with the laws and regulations applicable to the vessel 
and that the vessel is otherwise satisfactory for the intended service. 
The initial inspection may include an inspection of the following items:
    (1) The arrangement, installation, materials, and scantlings of the 
structure including the hull and superstructure, yards, masts, spars, 
rigging, sails, piping, main and auxiliary machinery, pressure vessels, 
steering apparatus, electrical installation, fire resistant construction 
materials, life saving appliances, fire detecting and extinguishing 
equipment, pollution prevention equipment, and all other equipment;
    (2) Sanitary conditions and fire hazards; and
    (3) Certificates and operating manuals, including certificates 
issued by the FCC.
    (d) During an initial inspection for certification the owner or 
managing operator shall conduct all tests and make the vessel available 
for all applicable inspections discussed in this paragraph, and in 
Subpart H of this part, to the satisfaction of the cognizant OCMI, 
including the following:
    (1) The installation of each rescue boat, liferaft, inflatable 
buoyant apparatus, and launching appliance as listed on its Certificate 
of Approval (Form CGHQ-10030).
    (2) The operation of each rescue boat and survival craft launching 
appliance required by part 180 of this chapter.
    (3) Machinery, fuel tanks, and pressure vessels as required by part 
182 of this chapter.
    (4) A stability test or a simplified stability test when required by 
Sec. 170.175 of this chapter or Sec. 178.320 of this chapter.
    (5) Watertight bulkheads as required by part 179 of this chapter.
    (6) Firefighting systems as required by part 181 of this chapter.
    (7) The operation of all smoke and fire detecting systems, and fire 
alarms and sensors.



Sec. 176.404  Subsequent inspections for certification.

    (a) An inspection for renewal of a Certificate of Inspection 
normally includes inspection and testing of the structure, machinery, 
equipment, and on a sailing vessel, rigging and sails. The owner or 
managing operator shall conduct all tests as required by the marine 
inspector, and make the vessel available for all specific inspections 
and drills required by Subpart H of this part. In addition, the OCMI may 
require the vessel to get underway as part of the inspection for 
certification.

[[Page 212]]

The inspection is conducted to determine if the vessel is in 
satisfactory condition, fit for the service intended, and complies with 
the applicable regulations in this subchapter.
    (b) You must submit your written application for renewal of a 
Certificate of Inspection to the OCMI at least 30 days prior to the 
expiration date of the Certificate of Inspection, as required in 
Sec. 176.105 of this part.

[CGD 85-080, 61 FR 953, Jan. 10, 1996; 61 FR 20557, May 7, 1996; USCG-
1999-4976, 65 FR 6508, Feb. 9, 2000]



                         Subpart E--Reinspection



Sec. 176.500  When required.

    (a) Vessels carrying more than 12 passengers on international 
voyages must undergo an inspection for certification each year as 
specified in Sec. 176.404.
    (b) All other vessels must undergo an inspection for certification 
as specified in Sec. 176.404 and annual inspection as specified in 
paragraph (b)(1) of this section.
    (1) Annual inspection. Your vessel must undergo an annual inspection 
within the 3 months before or after each anniversary date.
    (i) You must contact the cognizant OCMI to schedule an inspection at 
a time and place which he or she approves. No written application is 
required.
    (ii) The scope of the annual inspection is the same as the 
inspection for certification but in less detail unless the cognizant 
marine inspector finds deficiencies or determines that a major change 
has occurred since the last inspection. If deficiencies are found or a 
major change to the vessel has occurred, the marine inspector will 
conduct an inspection more detailed in scope to ensure that the vessel 
is in satisfactory condition and fit for the service for which it is 
intended. If your vessel passes the annual inspection, the marine 
inspector will endorse your current Certificate of Inspection.
    (iii) If the annual inspection reveals deficiencies in your vessel's 
maintenance, you must make any or all repairs or improvements within the 
time period specified by the OCMI.
    (iv) Nothing in this subpart limits the marine inspector from 
conducting such tests or inspections he or she deems necessary to be 
assured of the vessel's seaworthiness.
    (2) [Reserved]

[USCG-1999-4976, 65 FR 6508, Feb. 9, 2000]



Sec. 176.502  Certificate of Inspection: Conditions of validity.

    To maintain a valid Certificate of Inspection, you must complete 
your annual inspection within the periods specified in 
Sec. 176.500(b)(1) and your Certificate of Inspection must be endorsed.

[USCG-1999-4976, 65 FR 6508, Feb. 9, 2000]



               Subpart F--Hull and Tailshaft Examinations



Sec. 176.600  Drydock and internal structural examination intervals.

    (a) The owner or managing operator shall make a vessel available for 
drydock examinations, internal structural examinations, and underwater 
surveys (UWILD) required by this section.
    (b) If your vessel is operated on international voyages subject to 
SOLAS requirements, it must undergo a drydock examination once every 12 
months unless it has been approved to undergo an underwater survey 
(UWILD) per Sec. 176.615 of this part. If the vessel becomes due for a 
drydock examination or an internal structural examination during the 
voyage, it may lawfully complete the voyage prior to the examination if 
it undergoes the required examination upon completion of the voyage to 
the United States but not later than 30 days after the examination was 
due. If the vessel is due for an examination within 15 days of sailing 
on an international voyage from the United States port, it must undergo 
the required examination before sailing.
    (c) If your vessel is not operated on international voyages and does 
not meet the conditions in paragraph (d) of this section, it must 
undergo a drydock and internal structural examination as follows unless 
it has been approved to undergo an underwater survey (UWILD) per 
Sec. 176.615 of this part:
    (1) A vessel that is exposed to salt water more than three months in 
any

[[Page 213]]

12 month period since the last examination must undergo a drydock 
examination and an internal structural at least once every two years; 
and
    (2) A vessel that is exposed to salt water not more than three 
months in any 12 month period since the last examination must undergo a 
drydock examination and an internal structural examination at least once 
every five years.
    (d) Whenever damage or deterioration to hull plating or structural 
members that may affect the seaworthiness of a vessel is discovered or 
suspected, the cognizant OCMI may conduct an internal structural 
examination in any affected space including fuel tanks, and may require 
the vessel to be drydocked or taken out of service to assess the extent 
of the damage, and to effect permanent repairs. The OCMI may also 
decrease the drydock examination intervals to monitor the vessel's 
structural condition.
    (e) For a vessel that is eligible per Sec. 115.625, and if the owner 
opts for an alternate hull examination with the underwater survey 
portion conducted exclusively by divers, the vessel must undergo two 
alternate hull exams and two internal structural exams within any five-
year period. If a vessel completes a satisfactory alternate hull exam, 
with the underwater survey portion conducted predominantly by an 
approved underwater remotely operated vehicle (ROV), the vessel must 
undergo one alternate hull and one internal structural exam, within any 
five-year period. The vessel may undergo a drydock exam to satisfy any 
of the required alternate hull exams.

[CGD 85-080, 61 FR 953, Jan. 10, 1996, as amended at 62 FR 51356, Sept. 
30, 1997; USCG-2000-6858, 67 FR 21084, Apr. 29, 2002]



Sec. 176.610  Scope of drydock and internal structural examinations.

    (a) A drydock examination conducted in compliance with Sec. 176.600 
must be conducted while the vessel is hauled out of the water or placed 
in a drydock or slipway. During the examination all accessible parts of 
the vessel's underwater body and all through hull fittings, including 
the hull plating and planking, appendages, propellers, shafts, bearings, 
rudders, sea chests, sea valves, and sea strainers shall be made 
available for examination. Sea chests, sea valves, and sea strainers 
must be opened for examination. On wooden vessels, fastenings may be 
required to be pulled for examination.
    (b) An internal structural examination conducted in compliance with 
Sec. 176.600 may be conducted while the vessel is afloat or out of the 
water and consists of a complete examination of the vessel's main 
strength members, including the major internal framing, the hull plating 
and planking, voids, and ballast, cargo, and fuel oil tanks. Where the 
internal framing, plating, or planking of the vessel is concealed, 
sections of the lining, ceiling or insulation may be removed or the 
parts otherwise probed or exposed so that the inspector may be satisfied 
as to the condition of the hull structure. Fuel oil tanks need not be 
cleaned out and internally examined if the marine inspector is able to 
determine by external examination that the general condition of the 
tanks is satisfactory.



Sec. 176.615  Underwater Survey in Lieu of Drydocking (UWILD).

    (a) The Officer in Charge, Marine Inspection (OCMI), may approve an 
underwater survey instead of a drydock examination at alternating 
intervals if your vessel is--
    (1) Less than 15 years of age;
    (2) A steel or aluminum hulled vessel;
    (3) Fitted with an effective hull protection system; and
    (4) Described in Sec. 176.600(b) or (c) of this part.
    (b) For vessels less than 15 years of age, you must submit an 
application for an underwater survey to the OCMI at least 90 days before 
your vessel's next required drydock examination. The application must 
include--
    (1) The procedure for carrying out the underwater survey;
    (2) The time and place of the underwater survey;
    (3) The method used to accurately determine the diver's or remotely 
operated vehicle's (ROV) location relative to the hull;
    (4) The means for examining all through-hull fittings and 
appurtenances;

[[Page 214]]

    (5) The condition of the vessel, including the anticipated draft of 
the vessel at the time of survey;
    (6) A description of the hull protection system; and
    (7) The name and qualifications of any third party examiner.
    (c) If your vessel is 15 years old or older, the cognizant District 
Commander, may approve an underwater survey instead of a drydock 
examination at alternating intervals (UWILD). You must submit an 
application for an underwater survey to the OCMI at least 90 days before 
your vessel's next required drydock examination. You may be allowed this 
option if--
    (1) The vessel is qualified under paragraphs (a)(2) through (4) of 
this section;
    (2) Your application includes the information in paragraphs (b)(1) 
through (b)(7) of this section; and
    (3) During the vessel's drydock examination, preceding the 
underwater survey, a complete set of hull gaugings was taken and they 
indicated that the vessel was free from appreciable hull deterioration.
    (d) After the drydock examination required by paragraph (c)(3) of 
this section, the OCMI submits a recommendation for future underwater 
surveys, the results of the hull gauging, and the results of the Coast 
Guards' drydock examination results to the cognizant District Commander 
for review.

[USCG-2000-6858, 67 FR 21084, Apr. 29, 2002]



Sec. 176.620  Description of the Alternative Hull Examination (AHE) Program for certain passenger vessels.

    The Alternative Hull Examination (AHE) Program provides you with an 
alternative to drydock examination by allowing your vessel's hull to be 
examined while it remains afloat. If completed using only divers, this 
program has four steps: the application process, the preliminary 
examination, the pre-survey meeting, and the hull examination. If a 
remotely operated vehicle (ROV) is used during the program the 
preliminary exam step may be omitted. Once you complete these steps, the 
Officer in Charge, Marine Inspection (OCMI) will evaluate the results 
and accept the examination as a credit hull exam if the vessel is in 
satisfactory condition. If divers are exclusively used for the 
underwater survey portion of the examination process, you may receive 
credit for a period of time such that subsequent AHEs would be conducted 
at intervals of twice in every five years, with no more than three years 
between any two AHEs. If an underwater ROV is used as the predominant 
method to examine the vessel's underwater hull plating, you may receive 
credit up to five years. At the end of this period, you may apply for 
further participation under the AHE Program.
    Note: The expected hull coverage when using an ROV must be at least 
80 percent.

[USCG-2000-6858, 67 FR 21085, Apr. 29, 2002]



Sec. 176.625  Eligibility requirements for the Alternative Hull Examination (AHE) Program for certain passenger vessels.

    (a) Your vessel may be eligible for the AHE Program if--
    (1) It is constructed of steel or aluminum;
    (2) It has an effective hull protection system;
    (3) It has operated exclusively in fresh water since its last 
drydock examination;
    (4) It operates in rivers or protected lakes; and
    (5) It operates exclusively in shallow water or within 0.5 nautical 
miles from shore.
    (b) In addition to the requirements in paragraph (a), the Officer in 
Charge, Marine Inspection (OCMI) will evaluate the following information 
when determining your vessel's eligibility for the AHE Program:
    (1) The overall condition of the vessel, based on its inspection 
history.
    (2) The vessel's history of hull casualties and hull-related 
deficiencies.
    (3) The AHE Program application, as described in Sec. 176.630 of 
this part.
    (c) When reviewing a vessel's eligibility for the AHE program, the 
OCMI may modify the standards given by paragraph (a)(5) of this section 
where it is considered safe and reasonable to do so. In making this 
determination, the OCMI will consider the vessel's overall condition, 
its history of safe operation, and any other factors that serve to 
mitigate overall safety risks.

[USCG-2000-6858, 67 FR 21085, Apr. 29, 2002]

[[Page 215]]



Sec. 176.630  The Alternative Hull Examination (AHE) Program application.

    If your vessel meets the eligibility criteria in Sec. 176.625 of 
this part, you may apply to the AHE Program. You must submit an 
application at least 90 days before the requested hull examination date 
to the Officer in Charge, Marine Inspection (OCMI) who will oversee the 
survey. The application must include--
    (a) The proposed time and place for conducting the hull examination;
    (b) The name of the participating diving contractor and underwater 
remotely operated vehicle (ROV) company accepted by the OCMI under 
Sec. 176.650 of this part;
    (c) The name and qualifications of the third party examiner. This 
person must be familiar with the inspection procedures and his or her 
responsibilities under this program. The OCMI has the discretionary 
authority to accept or deny use of a particular third party examiner;
    (d) A signed statement from your vessel's master, chief engineer, or 
the person in charge stating the vessel meets the eligibility criteria 
of Sec. 176.625 of this part and a description of the vessel's overall 
condition, level of maintenance, known or suspected damage, underwater 
body cleanliness, and the anticipated draft of the vessel at the time of 
the examination;
    (e) Plans or drawings that illustrate the external details of the 
hull below the sheer strake;
    (f) A detailed plan for conducting the hull examination in 
accordance with Secs. 176.645 and 176.650 of this part, which must 
address all safety concerns related to the removal of sea valves during 
the inspection; and
    (g) A preventative maintenance plan for your vessel's hull, its 
related systems and equipment.

[USCG-2000-6858, 67 FR 21085, Apr. 29, 2002]



Sec. 176.635  Preliminary examination requirements.

    (a) If you exclusively use divers to examine the underwater hull 
plating, you must arrange to have a preliminary examination conducted by 
a third party examiner, with the assistance of qualified divers. The 
purpose of the preliminary examination is to assess the overall 
condition of the vessel's hull and identify any specific concerns to be 
addressed during the underwater hull examination.
    (b) The preliminary examination is required only upon the vessel's 
entry or reentry into the AHE program.
    (c) If you use an underwater remotely operated vehicle (ROV) as the 
predominate means to examine your vessel's hull plating, a preliminary 
examination and the participation of a third party examiner will not be 
necessary.

[USCG-2000-6858, 67 FR 21085, Apr. 29, 2002]



Sec. 176.640  Pre-Survey meeting.

    (a) In advance of each AHE, you must conduct a pre-survey meeting to 
discuss the details of the AHE procedure with the Officer in Charge, 
Marine Inspection (OCMI). If you exclusively use divers to examine the 
underwater hull plating, the third party examiner must attend the 
meeting and you must present the results of the preliminary examination. 
If you use an underwater remotely operated vehicle (ROV) as the 
predominate means to examine the vessel's hull plating, then the pre-
survey meeting must be attended by a representative of the ROV operating 
company who is qualified to discuss the ROV's capabilities and 
limitations related to your vessel's hull design and configuration.
    (b) A vessel owner, operator, or designated agent must request this 
meeting in writing at least 30 days in advance of the examination date.

[USCG-2000-6858, 67 FR 21086, Apr. 29, 2002]



Sec. 176.645  AHE Procedure.

    (a) To complete the underwater survey you must--
    (1) Perform a general examination of the underwater hull plating and 
a detailed examination of all hull welds, propellers, tailshafts, 
rudders, and other hull appurtenances;
    (2) Examine all sea chests;
    (3) Remove and inspect all sea valves in the presence of a marine 
inspector;
    (4) Remove all passengers from the vessel when the sea valves are 
being examined, if required by the Officer in Charge, Marine Inspection 
(OCMI);

[[Page 216]]

    (5) Allow access to all internal areas of the hull for examination, 
except internal tanks that carry fuel (unless damage or deterioration is 
discovered or suspect), sewage, or potable water. Internal sewage and 
potable water tanks may be examined visually or by non-destructive 
testing to the satisfaction of the attending marine inspector; and
    (6) Meet the requirements in Sec. 176.650 of this part.
    (b) A marine inspector may examine any other areas deemed necessary 
by the OCMI.
    (c) If the AHE reveals significant deterioration or damage to the 
vessel's hull plating or structural members, the OCMI must be 
immediately notified. The OCMI may require the vessel be drydocked or 
otherwise taken out of service to further assess the extent of damage or 
to effect permanent repairs if the assessment or repairs cannot be 
completed to the satisfaction of the OCMI while the vessel is 
waterborne.

[USCG-2000-6858, 67 FR 21086, Apr. 29, 2002]



Sec. 176.650  Alternative Hull Examination Program options: Divers or underwater ROV.

    To complete the underwater survey portion of the AHE, you may use 
divers or an underwater remotely operated vehicle (ROV).
    (a) If you use divers to conduct the underwater survey, you must--
    (1) Locate the vessel so the divers can work safely under the 
vessel's keel and around both sides. The water velocity must be safe for 
dive operations;
    (2) Provide permanent hull markings or a temporary underwater grid 
system to identify the diver's location with respect to the hull, within 
one foot of accuracy;
    (3) Take ultrasonic thickness gaugings at a minimum of 5 points on 
each plate, evenly spaced;
    (4) Take hull plating thickness gaugings along transverse belts at 
the bow, stern, and midships, as a minimum. Plating thickness gaugings 
must also be taken along a longitudinal belt at the wind and water 
strake. Individual gaugings along the transverse and longitudinal belts 
must be spaced no more than 3 feet apart;
    (5) Ensure the third party examiner observes the entire underwater 
examination process;
    (6) Record the entire underwater survey with audio and video 
recording equipment and ensure that communications between divers and 
the third party examiner are recorded; and
    (7) Use appropriate equipment, such as a clear box, if underwater 
visibility is poor, to provide the camera with a clear view of the hull.
    (b) You may use an underwater ROV to conduct the underwater survey. 
The underwater ROV operating team, survey process and equipment, quality 
assurance methods, and the content and format of the survey report must 
be accepted by the Officer in Charge, Marine Inspection (OCMI) prior to 
the survey. If you choose this option, you must--
    (1) Locate the vessel to ensure that the underwater ROV can operate 
effectively under the vessel's keel and around both sides; and
    (2) Employ divers to examine any sections of the hull and 
appurtenances that the underwater ROV cannot access or is otherwise 
unable to evaluate.
    (3) If the OCMI determines that the data obtained by the ROV, 
including non-destructive testing results, readability of the results, 
and positioning standards, will not integrate into the data obtained by 
the divers, then a third party examiner must be present during the 
divers portion of the examination.

[USCG-2000-6858, 67 FR 21086, Apr. 29, 2002]



Sec. 176.655  Hull examination reports.

    (a) If you exclusively use divers for the underwater survey portion 
of the AHE, you must provide the Officer in Charge, Marine Inspection 
(OCMI) with a written hull examination report. This report must include 
thickness gauging results, a copy of the audio and video recordings and 
any other information that will help the OCMI evaluate your vessel for a 
drydock extension. The third party examiner must sign the report and 
confirm the validity of its contents.
    (b) If you use an underwater remotely operated vehicle (ROV) as the 
predominate means to examine the vessel's underwater hull plating, you 
must provide the OCMI with a report in

[[Page 217]]

a format that is acceptable to the OCMI, per Sec. 176.650(b) of this 
part.
    (c) The OCMI will evaluate the hull examination report and grant a 
credit hull exam if satisfied with the condition of the vessel. If 
approved and you exclusively use divers to examine the hull plating, you 
will receive a credit hull exam of up to 36 months. (Underwater 
examinations are required twice every 5 years.) If approved and you use 
an underwater ROV as the predominate means to examine the hull plating, 
you will receive a credit hull exam of up to 60 months (5 years).

[USCG-2000-6858, 67 FR 21086, Apr. 29, 2002]



Sec. 176.660  Continued participation in the Alternative Hull Examination (AHE) Program.

    (a) To continue to participate in the AHE Program, you must conduct 
an annual hull condition assessment. At a minimum, the hull condition 
assessment must include an internal examination and random hull gaugings 
taken internally. If the annual hull condition assessment reveals 
significant damage or corrosion, where temporary repairs have been made, 
or where other critical areas of concern have been identified, the 
Officer in Charge, Marine Inspection (OCMI) may require an expanded 
examination to include an underwater hull examination using divers. If 
an underwater examination is required, the examination must focus on 
areas at higher risk of damage or corrosion and must include a 
representative sampling of hull gaugings.
    (b) If an underwater survey is required for the annual hull 
condition assessment, the OCMI may require the presence of a third party 
examiner and a written hull examination report must be submitted to the 
OCMI. This report must include thickness gauging results, a copy of the 
audio and video recordings and any other information that will help the 
OCMI evaluate your vessel for continued participation in the AHE 
program. The third party examiner must sign the report and confirm the 
validity of its contents.
    (c) You must submit your preventive maintenance reports or 
checklists on an annual basis to the OCMI. These reports or checklists 
must conform to the plans you submitted in your application under 
Sec. 176.630 of this part, which the OCMI approved.
    (d) Prior to each scheduled annual hull condition assessment--
    (1) The owner may submit to the OCMI a request for a waiver of this 
requirement no fewer than 30 days before the scheduled assessment; and
    (2) The OCMI may reduce the scope or extend the interval of the 
assessment if the operational, casualty, and deficiency history of the 
vessel, along with a recommendation of the vessel's master, indicates 
that it is warranted.

[USCG-2000-6858, 67 FR 21086, Apr. 29, 2002]



Sec. 176.665  Notice and plans required.

    (a) The owner or managing operator shall notify the cognizant OCMI 
as far in advance as possible whenever a vessel is to be hauled out or 
placed in a drydock or slipway in compliance with Sec. 176.605 or to 
undergo repairs or alterations affecting the safety of the vessel, 
together with the nature of any repairs or alterations contemplated. 
Hull repairs or alternations that affect the safety of the vessel 
include but are not limited to the replacement, repair, or refastening 
of planking, plating, or structural members including the repair of 
cracks.
    (b) Whenever a vessel is hauled out or placed in a drydock or 
slipway in excess of the requirements of this subpart for the purpose of 
maintenance, including, but not limited to, changing a propeller, 
painting, or cleaning the hull, no report need be made to the cognizant 
OCMI.
    (c) The owner or managing operator of each vessel that holds a Load 
Line Certificate shall make plans showing the vessel's scantlings 
available to the Coast Guard marine inspector whenever the vessel 
undergoes a drydock examination, internal structural examination, or an 
underwater survey or whenever repairs or alterations affecting the 
safety or seaworthiness of the vessel are made to the vessel's hull.

[CGD 85-080, 61 FR 953, Jan. 10, 1996, as amended at 62 FR 51356, Sept. 
30, 1997. Redesignated and amended by USCG-2000-6858, 67 FR 21084, 
21087, Apr. 29, 2002]

[[Page 218]]



Sec. 176.670  Tailshaft examinations.

    (a) The marine inspector may require any part or all of the 
propeller shafting to be drawn for examination of the shafting and stern 
bearing of a vessel whenever the condition of the shafting and bearings 
are in question.
    (b) The marine inspector may conduct a visual examination and may 
require nondestructive testing of the propeller shafting whenever the 
condition of shafting is in question.

[CGD 85-080, 61 FR 953, Jan. 10, 1996. Redesignated by USCG-2000-6858, 
67 FR 21084, Apr. 29, 2002]



Sec. 176.675  Extension of examination intervals.

    The intervals between drydock examinations and internal structural 
examinations specified in Sec. 176.605 of this part may be extended by 
the cognizant OCMI or Commandant.

[CGD 85-080, 61 FR 953, Jan. 10, 1996. Redesignated and amended by USCG-
2000-6858, 67 FR 21084, 21087, Apr. 29, 2002]



                   Subpart G--Repairs and Alterations



Sec. 176.700  Permission for repairs and alterations.

    (a) Repairs or alterations to the hull, machinery, or equipment that 
affect the safety of the vessel must not be made without the approval of 
the cognizant OCMI, except during an emergency. When repairs are made 
during an emergency, the owner, managing operator, or master shall 
notify the OCMI as soon as practicable after such repairs or 
alternations are made. Repairs or alterations that affect the safety of 
the vessel include, but are not limited to: replacement, repair, or 
refastening of deck or hull planking, plating, and structural members; 
repair of plate or frame cracks; damage repair or replacement, other 
than replacement in kind, of electrical wiring, fuel lines, tanks, 
boilers and other pressure vessels, and steering, propulsion and power 
supply systems; alterations affecting stability; and repair or 
alteration of lifesaving, fire detecting, or fire extinguishing 
equipment.
    (b) The owner or managing operator shall submit drawings, sketches, 
or written specifications describing the details of any proposed 
alterations to the cognizant OCMI. Proposed alterations must be approved 
by the OCMI before work is started.
    (c) Drawings are not required to be submitted for repairs or 
replacements in kind.
    (d) The OCMI may require an inspection and testing whenever a repair 
or alteration is undertaken.



Sec. 176.702  Installation tests and inspections.

    Whenever a launching appliance, survival craft, rescue boat, fixed 
gas fire extinguishing system, machinery, fuel tank, or pressure vessel 
is installed aboard a vessel after completion of the initial inspection 
for certification of the vessel, as replacement equipment or as a new 
installation, the owner or managing operator shall conduct the tests and 
make the vessel ready for the inspections required by Sec. 176.402(d) to 
the satisfaction of the cognizant OCMI.



Sec. 176.704  Breaking of safety valve seals.

    The owner, managing operator, or master shall notify the cognizant 
OCMI as soon as practicable after the seal on a boiler safety valve on a 
vessel is broken.



Sec. 176.710  Inspection and testing prior to hot work.

    (a) An inspection for flammable or combustible gases must be 
conducted by a certified marine chemist or other person authorized by 
the cognizant OCMI in accordance with the provisions of National Fire 
Protection Association (NFPA) 306, ``Control of Gas Hazards on 
Vessels,'' before alterations, repairs, or other operations involving 
riveting, welding, burning, or other fire producing actions may be made 
aboard a vessel:
    (1) Within or on the boundaries of fuel tanks; or
    (2) To pipelines, heating coils, pumps, fittings, or other 
appurtenances connected to fuel tanks.
    (b) An inspection required by paragraph (a) of this section must be 
conducted as required by this paragraph.

[[Page 219]]

    (1) In ports or places in the United States or its territories and 
possessions, the inspection must be conducted by a marine chemist 
certificated by the NFPA. However, if the services of a certified marine 
chemist are not reasonably available, the cognizant OCMI, upon the 
recommendation of the vessel owner or managing operator, may authorize 
another person to inspect the vessel. If the inspection indicates that 
the operations can be undertaken safely, a certificate setting forth 
this fact in writing must be issued by the certified marine chemist or 
the authorized person before the work is started. The certificate must 
include any requirements necessary to reasonably maintain safe 
conditions in the spaces certified throughout the operation, including 
any precautions necessary to eliminate or minimize hazards that may be 
present from protective coatings or residues from cargoes.
    (2) When not in a port or place in the United States or its 
territories and possessions, and when a marine chemist or a person 
authorized by the cognizant OCMI is not reasonably available, the master 
shall conduct the inspection and enter the results in the inspection in 
the vessel's logbook.
    (c) The owner, managing operator, or master shall obtain a copy of 
certificates issued by the certified marine chemist or the other person 
authorized by the cognizant OCMI, and shall ensure that all conditions 
on the certificates are observed and that the vessel is maintained in a 
safe condition. The owner, managing operator, or master shall maintain a 
safe condition on the vessel by requiring full observance, by persons 
under his or her control, of all requirements listed in the certificate.



                     Subpart H--Material Inspections



Sec. 176.800  Inspection standards.

    (a) A vessel is inspected for compliance with the standards required 
by this subchapter. Machinery, equipment, materials, and arrangements 
not covered by standards in this subchapter may be inspected in 
accordance with standards acceptable to the cognizant OCMI as good 
marine practice.
    (b) In the application of inspection standards due consideration 
must be given to the hazards involved in the operation permitted by a 
vessel's Certificate of Inspection. Thus, the standards may vary in 
accordance with the vessel's area of operation or any other operational 
restrictions or limitations.
    (c) The published standards of classification societies and other 
recognized safety associations may be used as guides in the inspection 
of vessels when such standards do not conflict with the requirements of 
this subchapter.



Sec. 176.801  Notice of inspection deficiencies and requirements.

    (a) If during the inspection of a vessel, the vessel or its 
equipment is found not to conform to the requirements of law or the 
regulations in this subchapter, the marine inspector will point out 
deficiencies observed and discuss all requirements with the owner, 
managing operator, or a representative thereof. Normally, the marine 
inspector will list all such requirements that have not been completed 
and present the list to the owner, managing operator, or a 
representative thereof. However, when a deficiency presents a serious 
safety hazard to the vessel or its passengers or crew, and exists 
through negligence or willful noncompliance, the marine inspector may 
issue a Report of Violation (ROV) to the owner, managing operator, or a 
representative thereof.
    (b) In any case where further clarification of or reconsideration of 
any requirement placed against the vessel is desired, the owner, 
managing operator, or a representative thereof, may discuss the matter 
with the cognizant OCMI.

[CGD 85-080, 61 FR 953, Jan. 10, 1996, as amended by CGD 97-057, 62 FR 
51049, Sept. 30, 1997]



Sec. 176.802  Hull.

    (a) At each initial and subsequent inspection for certification of a 
vessel, the owner or managing operator shall be prepared to conduct 
tests and have the vessel ready for inspections of the hull structure 
and its appurtenances, including the following:
    (1) Inspection of all accessible parts of the exterior and interior 
of the hull,

[[Page 220]]

the watertight bulkheads, and weather decks;
    (2) Inspection and operation of all watertight closures in the hull, 
decks, and bulkheads including through hull fittings and sea valves;
    (3) Inspection of the condition of the superstructure, masts, and 
similar arrangements constructed on the hull, and on a sailing vessel 
all spars, standing rigging, running rigging, blocks, fittings, and 
sails;
    (4) Inspection of all railings and bulwarks and their attachment to 
the hull structure;
    (5) Inspection to ensure that guards or rails are provided in 
dangerous places;
    (6) Inspection and operation of all weathertight closures above the 
weather deck and the provisions for drainage of sea water from the 
exposed decks; and
    (7) Inspection of all interior spaces to ensure that they are 
adequately ventilated and drained, and that means of escape are adequate 
and properly maintained.
    (b) The vessel must be afloat for at least a portion of the 
inspection as required by the marine inspector.
    (c) When required by the marine inspector, a portion of the 
inspection must be conducted while the vessel is underway so that the 
hull and internal structure can be observed.

[CGD 85-080, 61 FR 953, Jan. 10, 1996; 61 FR 20557, May 7, 1996, as 
amended at 62 FR 51356, Sept. 30, 1997]



Sec. 176.804  Machinery.

    At each initial and subsequent inspection for certification of a 
vessel, the owner or managing operator shall be prepared to conduct 
tests and have the vessel ready for inspections of machinery, fuel, and 
piping systems, including the following:
    (a) Operation of the main propulsion machinery both ahead and 
astern;
    (b) Operational test and inspection of engine control mechanisms 
including primary and alternate means of starting machinery;
    (c) Inspection of all machinery essential to the routine operation 
of the vessel including generators and cooling systems;
    (d) External inspection of fuel tanks and inspection of tank vents, 
piping, and pipe fittings;
    (e) Inspection of all fuel system;
    (f) Operational test of all valves in fuel lines by operating 
locally and at remote operating positions;
    (g) Operational test of all overboard discharge and intake valves 
and watertight bulkhead pipe penetration valves;
    (h) Operational test of the means provided for pumping bilges; and
    (i) Test of machinery alarms including bilge high level alarms.



Sec. 176.806  Electrical.

    At each initial and subsequent inspection for certification of a 
vessel, the owner or managing operator shall be prepared to conduct 
tests and have the vessel ready for inspection of electrical equipment 
and systems, including the following:
    (a) Inspection of all cable as far as practicable without undue 
disturbance of the cable or electrical apparatus;
    (b) Test of circuit breakers by manual operation;
    (c) Inspection of fuses including ensuring the ratings of fuses are 
suitable for the service intended;
    (d) Inspection of rotating electrical machinery essential to the 
routine operation of the vessel;
    (e) Inspection of all generators, motors, lighting fixtures and 
circuit interrupting devices located in spaces or areas that may contain 
flammable vapors;
    (f) Inspection of batteries for condition and security of stowage;
    (g) Operational test of electrical apparatus, which operates as part 
of or in conjunction with a fire detection or alarms system installed on 
board the vessel, by simulating, as closely as practicable, the actual 
operation in case of fire; and
    (h) Operational test of all emergency electrical systems.



Sec. 176.808  Lifesaving

    (a) At each initial and subsequent inspection for certification of a 
vessel, the owner or managing operator shall be prepared to conduct 
tests and have the vessel ready for inspection of lifesaving equipment 
and systems, including the following:

[[Page 221]]

    (1) Tests of each rescue boat and each rescue boat launching 
appliance and survival craft launching appliance in accordance with 
Sec. 185.520 of this chapter;
    (2) Inspection of each lifejacket, work vest, and marine buoyant 
device;
    (3) If used, inspection of the passenger safety orientation cards or 
pamphlets allowed by Sec. 185.506(b)(2) of this chapter;
    (4) Inspection of each inflatable liferaft, inflatable buoyant 
apparatus, and inflatable lifejacket to determine that it has been 
serviced as required by Sec. 185.730 of this chapter; and
    (5) Inspection of each hydrostatic release unit to determine that it 
is in compliance with the servicing and usage requirements of 
Sec. 185.740 of this chapter.
    (b) Each item of lifesaving equipment determined by the marine 
inspector to not be in serviceable condition must be repaired or 
replaced.
    (c) Each item of lifesaving equipment with an expiration date on it 
must be replaced if the expiration date has passed.
    (d) The owner or managing operator shall destroy, in the presence of 
the marine inspector, each lifejacket, other personal floatation device, 
and other lifesaving device found to be defective and incapable of 
repair.
    (e) At each initial and subsequent inspection for certification of a 
vessel, the vessel must be equipped with an adult size lifejacket for 
each person authorized. The vessel must also be equipped with child size 
lifejackets equal to at least:
    (1) 10 percent of the maximum number of passengers permitted to be 
carried unless children are prohibited from being carried aboard the 
vessel; or
    (2) 5 percent of the maximum number of passengers permitted to be 
carried if all extended size lifejackets are provided.
    (f) Lifejackets, work vests, and marine buoyant devices may be 
marked with the date and marine inspection zone to indicate that they 
have been inspected and found to be in serviceable condition by a marine 
inspector.
    (g) At each initial and subsequent inspection for certification, the 
marine inspector may require that an abandon ship or man overboard drill 
be held under simulated emergency conditions specified by the inspector.

[CGD 85-080, 61 FR 953, Jan. 10, 1996, as amended at 62 FR 51356, Sept. 
30, 1997]



Sec. 176.810  Fire protection.

    (a) At each initial and subsequent inspection for certification, the 
owner or managing operator shall be prepared to conduct tests and have 
the vessel ready for inspection of its fire protection equipment, 
including the following:
    (1) Inspection of each hand portable fire extinguisher, semiportable 
fire extinguisher, and fixed gas fire extinguishing system to check for 
excessive corrosion and general condition;
    (2) Inspection of piping, controls, and valves, and the inspection 
and testing of alarms and ventilation shutdowns, for each fixed gas fire 
extinguishing system and detecting system to determine that the system 
is in operating condition;
    (3) Operation of the fire main system and checking of the pressure 
at the most remote and highest outlets;
    (4) Testing of each fire hose to a test pressure equivalent to its 
maximum service pressure;
    (5) Checking of each cylinder containing compressed gas to ensure it 
has been tested and marked in accordance with Sec. 147.60 in subchapter 
N of this chapter;
    (6) Testing or renewal of flexible connections and discharge hoses 
on semiportable extinguishers and fixed gas extinguishing systems in 
accordance with Sec. 147.65 in subchapter N of this chapter; and
    (7) Inspection and testing of all smoke and fire detection systems, 
including sensors and alarms.
    (b) The owner, managing operator, or a qualified servicing facility 
as applicable shall conduct the following inspections and tests:
    (1) For portable fire extinguishers, the inspections, maintenance 
procedures, and hydrostatic pressure tests required by Chapter 4 of NFPA 
10, ``Portable Fire Extinguishers,'' with the frequency specified by 
NFPA 10. In addition, carbon dioxide and Halon portable fire 
extinguishers must be refilled when the net content weight loss exceeds 
that specified for fixed systems

[[Page 222]]

by Table 176.810(b). The owner or managing operator shall provide 
satisfactory evidence of the required servicing to the marine inspector. 
If any of the equipment or records have not been properly maintained, a 
qualified servicing facility must be required to perform the required 
inspections, maintenance procedures, and hydrostatic pressure tests. A 
tag issued by a qualified servicing organization, and attached to each 
extinguisher, may be accepted as evidence that the necessary maintenance 
procedures have been conducted.
    (2) For semiportable and fixed gas fire extinguishing systems, the 
inspections and tests required by Table 176.810(b), in addition to the 
tests required by Secs. 147.60 and 147.65 in subchapter N of this 
chapter. The owner or managing operator shall provide satisfactory 
evidence of the required servicing to the marine inspector. If any of 
the equipment or records have not been properly maintained, a qualified 
servicing facility may be required to perform the required inspections, 
maintenance procedures, and hydrostatic pressure tests.

   Table 176.810(b)--Semiportable and Fixed Fire Extinguishing Systems
------------------------------------------------------------------------
            Type System                             Test
------------------------------------------------------------------------
Carbon dioxide....................  Weigh cylinders. Recharge if weight
                                     loss exceeds 10% of weight of
                                     charge. Test time delays, alarms,
                                     and ventilation shutdowns with
                                     carbon dioxide, nitrogen, or other
                                     nonflammable gas as stated in the
                                     system manufacturer's instruction
                                     manual. Inspect hoses and nozzles
                                     to be sure they are clean.
Halon.............................  Weigh cylinders. Recharge if weight
                                     loss exceeds 5% of weight of
                                     charge. If the system has a
                                     pressure gauge, also recharge if
                                     pressure loss (adjusted for
                                     temperature) exceeds 10%. Test time
                                     delays, alarms and ventilation
                                     shutdowns with carbon dioxide,
                                     nitrogen, or other nonflammable gas
                                     as stated in the system
                                     manufacturer's instruction manual.
                                     Inspect hoses and nozzles to be
                                     sure they are clean.
Dry Chemical (cartridge operated).  Examine pressure cartridge and
                                     replace if end is punctured or if
                                     determined to have leaked or to be
                                     in unsuitable condition. Inspect
                                     hose and nozzle to see if they are
                                     clear. Insert charged cartridge.
                                     Ensure dry chemical is free flowing
                                     (not caked) and extinguisher
                                     contains full charge.
Dry chemical (stored pressure)....  See that pressure gauge is in
                                     operating range. If not, or if the
                                     seal is broken, weigh or otherwise
                                     determined that extinguisher is
                                     fully charged with dry chemical.
                                     Recharge if pressure is low or if
                                     dry chemical is needed.
Foam (stored pressure)............  See that pressure gauge, if so
                                     equipped, is in the operating
                                     range. If not, or if the seal is
                                     broken, weigh or otherwise
                                     determine that extinguisher is
                                     fully charged with foam. Recharge
                                     if pressure is low or if foam is
                                     needed. Replace premixed agent
                                     every 3 years.
Clean Agents (Halon replacements).  (To be developed)
------------------------------------------------------------------------

    (c) The owner, managing operator, or master shall destroy, in the 
presence of the marine inspector, each fire hose found to be defective 
and incapable of repair.
    (d) At each initial and subsequent inspection for certification, the 
marine inspector may require that a fire drill be held under simulated 
emergency conditions to be specified by the inspector.

[CGD 85-080, 61 FR 953, Jan. 10, 1996; 61 FR 20557, May 7, 1996, as 
amended at 62 FR 51356, Sept. 30, 1997]



Sec. 176.812  Pressure vessels and boilers.

    (a) Pressure vessels must be tested and inspected in accordance with 
part 61, subpart 61.10, of this chapter.
    (b) Periodic inspection and testing requirements for boilers are 
contained in Sec. 61.05 in subchapter F of this chapter.

[CGD 85-080, 61 FR 953, Jan. 10, 1996, as amended at 62 FR 51356, Sept. 
30, 1997; USCG-1999-4976, 65 FR 6508, Feb. 9, 2000]



Sec. 176.814  Steering systems.

    At each initial and subsequent inspection for certification the 
owner or managing operator shall be prepared to test the steering 
systems of the vessel and make them available for inspection to the 
extent necessary to determine that they are in suitable condition and 
fit for the service intended.

[[Page 223]]

Servo-type power systems, such as orbital systems, must be tested and 
capable of smooth operation by a single person in the manual mode, with 
hydraulic pumps secured.



Sec. 176.816  MIscellaneous systems and equipment.

    At each initial and subsequent inspection for certification the 
owner or managing operator shall be prepared to test and make available 
for inspection all items in the ship's outfit, such as ground tackle, 
navigation lights and equipment, markings, and placards, which are 
required to be carried by the regulations in this subchapter, as 
necessary to determine that they are fit for the service intended.



Sec. 176.818  Sanitary inspection.

    At each inspection for certification and at every other vessel 
inspection, quarters, toilet and washing spaces, galleys, serving 
pantries, lockers, and similar spaces may be examined to determine that 
they are serviceable and in a sanitary condition.



Sec. 176.830  Unsafe practices.

    (a) At each inspection for certification and at every other vessel 
inspection all observed unsafe practices, fire hazards, and other 
hazardous situations must be corrected and all required guards and 
protective devices must be in satisfactory condition.
    (b) At each inspection for certification and at every other vessel 
inspection the bilges and other spaces may be examined to see that there 
is no excessive accumulation of oil, trash, debris, or other matter that 
might create a fire hazard, clog bilge pumping systems, or block 
emergency escapes.



Sec. 176.840  Additional tests and inspections.

    The cognizant OCMI may require that a vessel and its equipment 
undergo any additional test or inspection deemed reasonable and 
necessary to determine that the vessel and its equipment are suitable 
for the service in which they are to be employed.



Subpart I--International Convention for Safety of Life at Sea, 1974, as 
                             Amended (SOLAS)



Sec. 176.900  Applicability.

    (a) Except as otherwise provided in this subpart, a mechanically 
propelled vessel of the United States, which carries more than 12 
passengers on an international voyage must be in compliance with the 
applicable requirements of the International Convention for Safety of 
Life at Sea, 1974, as Amended (SOLAS), to which the United States 
Government is currently a party.
    (b) SOLAS does not apply to a vessel solely navigating the Great 
Lakes and the St. Lawrence River as far east as a straight line drawn 
from Cap des Rosiers to West Point, Anticosti Island and, on the north 
side of Anticosti Island, the 63rd Meridian.



Sec. 176.910  Passenger Ship Safety Certificate.

    (a) A vessel, which carries more than 12 passengers on an 
international voyage must have a valid SOLAS Passenger Ship Safety 
Certificate. The Commandant issues the original SOLAS Passenger Ship 
Safety Certificate after receiving notification from the cognizant OCMI 
that the vessel complies with the applicable SOLAS regulations. 
Subsequent SOLAS Passenger Ship Safety Certificates are issued by the 
cognizant OCMI unless any changes to the vessel or its operations have 
occurred which changes the information on the certificate, in which case 
the Commandant will reissue the certificate.
    (b) The route specified on the Certificate of Inspection and the 
SOLAS Passenger Ship Safety Certificate must agree.
    (c) A SOLAS Passenger Ship Safety Certificate is issued for a period 
of not more than 12 months.
    (d) The SOLAS Passenger Ship Safety Certificate may be withdrawn, 
revoked, or suspended at any time when the vessel is not in compliance 
with applicable SOLAS requirements.

[[Page 224]]



Sec. 176.920  Exemptions.

    (a) In accordance with Chapter I (General Provisions) Regulation 4, 
of SOLAS, the Commandant may exempt a vessel, which is not normally 
engaged on an international voyage but that in exceptional circumstances 
is required to undertake a single international voyage from any of the 
requirements of the regulations of SOLAS provided that the vessel 
complies with safety requirements that are adequate, in the Commandant's 
opinion, for the voyage that is to be undertaken.
    (b) In accordance with Chapter II-1 (Construction--Subdivision and 
Stability, Machinery and Electrical Installations) Regulation 1, Chapter 
II-2 (Construction--Fire Protection, Fire Detection and Fire Extinction) 
Regulation 1, and Chapter III (Life Saving Appliances and Arrangements) 
Regulation 2 of SOLAS, the Commandant may exempt a vessel that does not 
proceed more than 20 miles from the nearest land from any of the 
specific requirements of Chapters II-1, II-2, and III of SOLAS if the 
Commandant determines that the sheltered nature and conditions of the 
voyage are such as to render the application of such requirements 
unreasonable or unnecessary.
    (c) The Commandant may exempt a vessel from requirements of the 
regulations of SOLAS in accordance with paragraphs (a) and (b) of this 
section upon a written request from the owner or managing operator 
submitted to the Commandant via the cognizant OCMI.
    (d) When the Commandant grants an exemption to a vessel in 
accordance with this section, the Commandant will issue the original 
SOLAS Exemption Certificate describing the exemption. Subsequent SOLAS 
Exemption Certificates are issued by the cognizant OCMI unless any 
changes to the vessel or its operations have occurred that changes the 
information on the SOLAS Exemption or Passenger Ship Safety 
Certificates, in which case the Commandant will reissue the certificate. 
A SOLAS Exemption Certificate is not valid for longer than the period of 
the SOLAS Passenger Ship Safety Certificate to which it refers.

[CGD 85-080, 61 FR 953, Jan. 10, 1996; 61 FR 20557, May 7, 1996]



Sec. 176.925  Safety Management Certificate.

    (a) All vessels that carry more than 12 passengers on an 
international voyage must have a valid Safety Management Certificate and 
a copy of their company's valid Document of Compliance certificate on 
board.
    (b) All such vessels must meet the applicable requirements of 33 CFR 
part 96.
    (c) A Safety Management Certificate is issued for a period of not 
more than 60 months.

[CGD 95-073, 62 FR 67515, Dec. 24, 1997]



Sec. 176.930  Equivalents.

    As outlined in Chapter I (General Provisions) Regulation 5, of 
SOLAS, the Commandant may accept an equivalent to a particular fitting, 
material, apparatus, or any particular provision required by SOLAS 
regulations if satisfied that such equivalent is at least as effective 
as that required by the regulations. An owner or managing operator of a 
vessel may submit a request for the acceptance of an equivalent 
following the procedures in Sec. 175.540 of this chapter. The Commandant 
will indicate the acceptance of an equivalent on the vessel's SOLAS 
Passenger Ship Safety Certificate or Safety Management Certificate, as 
appropriate.

[CGD 95-073, 62 FR 67515, Dec. 24, 1997]



PART 177--CONSTRUCTION AND ARRANGEMENT--Table of Contents




                      Subpart A--General Provisions

Sec.
177.100  General requirement.
177.115  Applicability to existing vessels.

                            Subpart B--Plans

177.202  Plans and information required.
177.210  Plans for sister vessels.

                        Subpart C--Hull Structure

177.300  Structural design.
177.310  Satisfactory service as a design basis.
177.315  Vessels of not more than 19.8 meters (65 feet) in length 
          carrying not more than 12 passengers.
177.330  Sailing vessels.
177.340  Alternate design considerations.

[[Page 225]]

                       Subpart D--Fire Protection

177.405  General arrangement and outfitting.
177.410  Structural fire protection.

                     Subpart E--Escape Requirements

177.500  Means of escape.

                         Subpart F--Ventilation

177.600  Ventilation of enclosed and partially enclosed spaces.
177.620  Ventilation of machinery and fuel tank spaces.

                         Subpart G--Crew Spaces

177.700  General requirements.
177.710  Overnight accommodations.

                   Subpart H--Passenger Accommodations

177.800  General requirements.
177.810  Overnight accommodations.
177.820  Seating.

                       Subpart I--Rails and Guards

177.900  Deck rails.
177.920  Storm rails.
177.940  Guards in vehicle spaces.
177.960  Guards for exposed hazards.
177.970  Protection against hot piping.

              Subpart J--Window Construction and Visibility

177.1010  Safety glazing materials.
177.1020  Strength.
177.1030  Operating station visibility.

    Authority: 46 U.S.C. 2103, 3306; E.O. 12234, 45 FR 58801, 3 CFR, 
1980 Comp., p. 277; 49 CFR 1.46.

    Source: CGD 85-080, 61 FR 961, Jan. 10, 1996, unless otherwise 
noted.



                      Subpart A--General Provisions



Sec. 177.100  General requirement.

    The construction and arrangement of a vessel must allow the safe 
operation of the vessel in accordance with the terms of its Certificate 
of Inspection giving consideration to provisions for a seaworthy hull, 
protection against fire, means of escape in case of a sudden unexpected 
casualty, guards and rails in hazardous places, ventilation of enclosed 
spaces, and necessary facilities for passengers and crew.

[CGD 85-080, 61 FR 961, Jan. 10, 1996, as amended by CGD 97-057, 62 FR 
51050, Sept. 30, 1997]



Sec. 177.115  Applicability to existing vessels.

    (a) Except as otherwise required by paragraph (b) of this section, 
an existing vessel must comply with the construction and arrangement 
regulations that were applicable to the vessel on March 10, 1996, or, as 
an alternative, the vessel may comply with the regulations in this part.
    (b) Alterations, or modifications made to the structure or 
arrangements of an existing vessel, that are a major conversion, on or 
after March 11, 1996, must comply with the regulations of this part. 
Repairs or maintenance conducted on an existing vessel, resulting in no 
significant changes to the original structure or arrangement of the 
vessel, must comply with the regulations applicable to the vessel on 
March 10, 1996, or, as an alternative, with the regulations in this 
part. However, when outfit items such as furnishings and mattresses are 
renewed, they must comply with the regulations in this part.



                            Subpart B--Plans



Sec. 177.202  Plans and information required.

    (a) Except as provided in paragraph (c) of this section and 
Sec. 177.210 of this part, the owner of a vessel requesting initial 
inspection for certification shall, prior to the start of construction 
unless otherwise allowed by the cognizant Officer in Charge, Marine 
Inspection (OCMI), submit for approval to the cognizant OCMI, at least 
two copies of the following plans:
    (1) Outboard profile;
    (2) Inboard profile; and
    (3) Arrangement of decks.
    (b) In addition, the owner shall, prior to receiving a Certificate 
of Inspection, submit for approval to the cognizant OCMI, at least two 
copies of the following plans, manuals, analyses, and calculations that 
are applicable to the vessel as determined by the OCMI:
    (1) Midship section;
    (2) Survival craft embarkation stations;
    (3) Machinery installation, including but not limited to:
    (i) Propulsion and propulsion control, including shaft details;

[[Page 226]]

    (ii) Steering and steering control, including rudder details;
    (iii) Ventilation diagrams; and
    (iv) Engine exhaust diagram;
    (4) Electrical installation including, but not limited to:
    (i) Elementary one-line diagram of the power system;
    (ii) Cable lists;
    (iii) Bills of materials;
    (iv) Type and size of generators and prime movers;
    (v) Type and size of generator cables, bus-tie cables, feeders, and 
branch circuit cables;
    (vi) Power, lighting, and interior communication panelboards with 
number of circuits and rating of energy consuming devices;
    (vii) Type of capacity of storage batteries;
    (viii) Rating of circuit breakers and switches, interrupting 
capacity of circuit breakers, and rating and setting of overcurrent 
devices; and
    (ix) Electrical plant load analysis.
    (5) Lifesaving equipment locations and installation;
    (6) Fire protection equipment installation including, but not 
limited to:
    (i) Fire main system plans and calculations;
    (ii) Fixed gas fire extinguishing system plans and calculations;
    (iii) Fire detecting system and smoke detecting system plans;
    (iv) Sprinkler system diagram and calculations; and
    (v) Portable fire extinguisher types, sizes and locations;
    (7) Fuel tanks;
    (8) Piping systems including: bilge, ballast, hydraulic, sanitary, 
compressed air, combustible and flammable liquids, vents, soundings, and 
overflows;
    (9) Hull penetrations and shell connections;
    (10) Marine sanitation device model number, approval number, 
connecting wiring and piping; and
    (11) Lines and offsets, curves of form, cross curves of stability, 
and tank capacities including size and location on vessel; and
    (12) On sailing vessels:
    (i) Masts, including integration into the ship's structure; and
    (ii) Rigging plan showing sail areas and centers of effort as well 
as the arrangement, dimensions, and connections of the standing rigging.
    (c) For a vessel of not more than 19.8 meters (65 feet) in length, 
the owner may submit specifications, sketches, photographs, line 
drawings or written descriptions instead of any of the required 
drawings, provided the required information is adequately detailed and 
acceptable to the cognizant OCMI.
    (d) An owner may submit any plans, manuals, or calculations, 
required to be submitted to the OCMI under this part, to the Commanding 
Officer, U.S. Coast Guard Marine Safety Center (Marine Safety Center), 
400 Seventh Street, SW., Washington, DC 20590-0001. Three copies of all 
documents are required to be submitted for Marine Safety Center plan 
approval.
    (e) For a vessel, the construction of which was begun prior to 
approval of the plans and information required by paragraphs (a) and (b) 
of this section, the cognizant OCMI may require any additional plans and 
information, manufacturers' certifications of construction, testing 
including reasonable destructive testing, and inspections, which the 
OCMI determines are necessary to verify that the vessel complies with 
the requirements of this subchapter.



Sec. 177.210  Plans for sister vessels.

    (a) Plans are not required for a vessel that is a sister vessel, 
provided:
    (1) Approved plans for the original vessel are on file at the Marine 
Safety Center or in the files of the cognizant OCMI;
    (2) The owner of the plans authorizes their use for the new 
construction of the sister vessel;
    (3) The regulations used for the original plan approval have not 
changed since the original approval; and
    (4) There are no major modifications to any of the systems to be 
used.
    (b) If approved plans for the original vessel are not on file at the 
MSC or with the cognizant OCMI, the vessel owner shall submit plans as 
described in Sec. 177.202 of this part.

[[Page 227]]



                        Subpart C--Hull Structure



Sec. 177.300  Structural design.

    Except as otherwise allowed by this subpart, a vessel must comply 
with the structural design requirements of one of the standards listed 
below for the hull material of the vessel.
    (a) Wooden hull vessels--Rules and Regulations for the 
Classification of Yachts and Small Craft, Lloyd's Register of Shipping 
(Lloyd's);
    (b) Steel hull vessels:
    (1) Rules and Regulations for the Classification of Yachts and Small 
Craft, Lloyd's; or
    (2) Rules for Building and Classing Steel Vessels Under 61 Meters 
(200 Ft) in Length, American Bureau of Shipping (ABS);
    (c) Fiber reinforced plastic vessels:
    (1) Rules and Regulations for the Classification of Yachts and Small 
Craft, Lloyd's; or
    (2) Rules for Building and Classing Reinforced Plastic Vessels, ABS; 
or
    (3) ABS Guide for High Speed Craft;
    (d) Aluminum hull vessels:
    (1) Rules and Regulations for the Classification of Yachts and Small 
Craft, Lloyd's; or
    (i) For a vessel of more than 30.5 meters (100 feet) in length--
Rules for Building and Classing Aluminum Vessels, ABS; or
    (ii) For a vessel of not more than 30.5 meters (100 feet) in length-
-Rules for Building and Classing Steel Vessels Under 61 Meters (200 
Feet) in Length, ABS, with the appropriate conversions from the ABS 
Rules for Building and Classing Aluminum Vessels; or
    (2) ABS Guide for High Speed Craft;
    (e) Steel hull vessels operating in protected waters--Rules for 
Building and Classing Steel Vessels for Service on Rivers and 
Intracoastal Waterways, ABS.

[CGD 85-080, 61 FR 961, Jan. 10, 1996, as amended at 62 FR 51356, Sept. 
30, 1997]



Sec. 177.310  Satisfactory service as a design basis.

    When scantlings for the hull, deckhouse, and frames of the vessel 
differ from those specified by the standards listed in Sec. 177.300 of 
this part, and the owner can demonstrate that the vessel, or another 
vessel approximating the same size, power, and displacement, has been 
built to such scantlings and has been in satisfactory service insofar as 
structural adequacy is concerned for a period of at least 5 years, such 
scantlings may be approved by the cognizant OCMI instead of the 
scantlings required by the applicable standards specified in 
Sec. 177.300 of this part.



Sec. 177.315  Vessels of not more than 19.8 meters (65 feet) in length carrying not more than 12 passengers.

    The scantlings for a vessel of not more than 19.8 meters (65 feet) 
in length carrying not more than 12 passengers that do not meet the 
standards in Secs. 177.300 or 177.310 may be approved by the cognizant 
OCMI if the builder of the vessel establishes to the satisfaction of the 
OCMI that the design and construction of the vessel is adequate for the 
intended service.



Sec. 177.330  Sailing vessels.

    The design, materials, and construction of masts, posts, yards, 
booms, bowsprits, and standing rigging on a sailing vessel must be 
suitable for the intended service. The hull structure must be adequately 
reinforced to ensure sufficient strength and resistance to plate 
buckling. The cognizant OCMI may require the owner to submit detailed 
calculations on the strength of the mast, post, yards, booms, bowsprits, 
and standing rigging to the Marine Safety Center for evaluation.



Sec. 177.340  Alternate design considerations.

    When the structure of vessel is of novel design, unusual form, or 
special materials, which cannot be reviewed or approved in accordance 
with Secs. 177.300, 177.310 or 177.315, the structure may be approved by 
the Commanding Officer, Marine Safety Center, when it can be shown by 
systematic analysis based on engineering principles that the structure 
provides adequate safety and strength. The owner shall submit detailed 
plans, material component specifications, and design criteria, including 
the expected operating environment, resulting loads on the vessel, and 
design limitations for such vessel, to the Marine Safety Center.

[[Page 228]]



                       Subpart D--Fire Protection



Sec. 177.405  General arrangement and outfitting.

    (a) Fire hazards to be minimized. The general construction of the 
vessel must be such as to minimize fire hazards insofar as it is 
reasonable and practicable.
    (b) Combustibles insulated from heated surfaces. Internal combustion 
engine exhausts, boiler and galley uptakes, and similar sources of 
ignition must be kept clear of and suitably insulated from combustible 
material. Dry exhaust systems for internal combustion engines on wooden 
or fiber reinforced plastic vessels must be installed in accordance with 
American Boat and Yacht Council (ABYC) Standard P-1 ``Installation of 
Exhaust Systems for Propulsion and Auxiliary Engines.''
    (c) Separation of machinery and fuel tank spaces from accommodation 
spaces. Machinery and fuel tank spaces must be separated from 
accommodation spaces by boundaries that prevent the passage of vapors.
    (d) Paint and flammable liquid lockers. Paint and flammable liquid 
lockers must be constructed of steel or equivalent material, or wholly 
lined with steel or equivalent material.
    (e) Vapor barriers. Vapor barriers must be provided where insulation 
of any type is used in spaces where flammable and combustible liquids or 
vapors are present, such as machinery spaces and paint lockers.
    (f) Waste receptacles. Unless other means are provided to ensure 
that a potential waste receptacle fire would be limited to the 
receptacle, waste receptacles must be constructed of noncombustible 
materials with no openings in the sides or bottom.
    (g) Mattresses. All mattresses must comply with either:
    (1) The U.S. Department of Commerce ``Standard for Mattress 
Flammability'' (FF 4-72.16), 16 CFR Part 1632, Subpart A and not contain 
polyurethane foam; or
    (2) International Maritime Organization Resolution A.688(17) ``Fire 
Test Procedures For Ignitability of Bedding Components.'' Mattresses 
that are tested to this standard may contain polyurethane foam.



Sec. 177.410  Structural fire protection.

    (a) Cooking areas. Vertical or horizontal surfaces within 910 
millimeters (3 feet) of cooking appliances must have an American Society 
for Testing and Materials (ASTM) E-84 ``Surface Burning Characteristics 
of Building Materials'' flame spread rating of not more than 75. 
Curtains, draperies, or free hanging fabrics must not be fitted within 
910 millimeters (3 feet) of cooking or heating appliances.
    (b) Composite materials. When the hull, bulkheads, decks, deckhouse, 
or superstructure of a vessel is partially or completely constructed of 
a composite material, including fiber reinforced plastic, the resin used 
must be fire retardant as accepted by the Commandant as meeting MIL-R-
21607. Resin systems that have not been accepted as meeting MIL-R-21607 
may be accepted as fire retardant if they have an ASTM E-84 flame spread 
rating of not more than 100 when tested in laminate form. The laminate 
submitted for testing the resin system to ASTM E-84 must meet the 
following requirements:
    (1) The test specimen laminate total thickness must be between 3.2 
and 6.4 millimeters (\1/8\ to \1/4\ inch).
    (2) The test specimen laminate must be reinforced with glass fiber 
of any form and must have a minimum resin content of 40 percent by 
weight.
    (3) Tests must be performed by an independent laboratory.
    (4) Test results must include, at a minimum, the resin 
manufacturer's name and address, the manufacturer's designation (part 
number) for the resin system including any additives used, the test 
laboratory's name and address, the test specimen laminate schedule, and 
the flame spread index resulting from the ASTM E-84 test.
    (5) Specific laminate schedules, regardless of resin type, that have 
an ASTM E-84 flame spread rating of not more than 100 may be considered 
as equivalent to the requirement in this section to use a fire retardant 
resin. Requests for qualifying a specific laminate schedule as fire 
retardant for use in a particular vessel may be submitted for 
consideration to the Commanding Officer, U.S. Coast Guard Marine Safety 
Center, 400 Seventh Street, SW., Washington, DC 20590-0001.

[[Page 229]]

    (c) Use of general purpose resin. General purpose resins may be used 
instead of fire retardant resins if the following additional 
requirements are met:
    (1) Cooking and heating appliances. Galleys must be surrounded by B-
15 Class fire boundaries. This may not apply to concession stands that 
are not considered high fire hazards areas (galleys) as long as they do 
not contain medium to high heat appliances such as deep fat fryers, flat 
plate griddles, and open ranges with heating surfaces exceeding 121 
deg. C(250  deg. F). Open flame systems for cooking and heating are not 
allowed.
    (2) Sources of ignition. Electrical equipment and switch boards must 
be protected from fuel or water sources. Fuel lines and hoses must be 
located as far as practical from heat sources. Internal combustion 
engine exhausts, boiler and galley uptakes, and similar sources of 
ignition must be kept clear of and suitability insulated from any 
woodwork or other combustible matter. Internal combustion engine dry 
exhaust systems must be installed in accordance with ABYC Standard P-1.
    (3) Fire detection and extinguishing systems. Fire detection and 
extinguishing systems must be installed in compliance with Secs. 181.400 
through 181.420 of this chapter. Additionally, all fiber reinforced 
plastic (FRP) vessels constructed with general purpose resins must be 
fitted with a smoke activated fire detection system of an approved type, 
installed in accordance with Sec. 76.27 in subchapter H of this chapter, 
in all accommodation spaces, all service spaces, and in isolated spaces 
such as voids and storage lockers that contain an ignition source such 
as electric equipment or piping for a dry exhaust system.
    (4) Machinery space boundaries. Boundaries that separate machinery 
spaces from accommodation spaces, service spaces, and control spaces 
must be lined with noncombustible panels or insulation approved in 
accordance with Sec. 164.009 in subchapter Q of this chapter, or other 
standard specified by the Commandant.
    (5) Furnishings. Furniture and furnishings must comply with 
Sec. 116.423 in subchapter K of this chapter.
    (d) Limitations on the use of general purpose resin--(1) Overnight 
accommodations. Vessels with overnight passenger accommodations for more 
than 12 persons must not be constructed with general purpose resin.
    (2) Gasoline fuel systems. Vessels with engines powered by gasoline 
or other fuels having a flash point of 43.3 deg. C (110 deg. F) or lower 
must not be constructed with general purpose resin, except for vessels 
powered by outboard engines with portable fuel tanks stored in an open 
area aft, if, as determined by the cognizant OCMI, the arrangement does 
not produce an unreasonable hazard.
    (3) Cargo. Vessels carrying or intended to carry hazardous 
combustible or flammable cargo must not be constructed with general 
purpose resin.

[CGD 85-080, 61 FR 961, Jan. 10, 1996; 61 FR 24464, May 15, 1996, as 
amended at 62 FR 51356, Sept. 30, 1997; USCG-1999-6216, 64 FR 53228, 
Oct. 1, 1999]



                     Subpart E--Escape Requirements



Sec. 177.500  Means of escape.

    (a) Except as otherwise provided in this section, each space 
accessible to passengers or used by the crew on a regular basis, must 
have at least two means of escape, one of which must not be a watertight 
door.
    (b) The two required means of escape must be widely separated and, 
if possible, at opposite ends or sides of the space to minimize the 
possibility of one incident blocking both escapes.
    (c) Subject to the restrictions of this section, means of escape may 
include normal exits and emergency exits, passageways, stairways, 
ladders, deck scuttles, and windows.
    (d) The number and dimensions of the means of escape from each space 
must be sufficient for rapid evacuation in an emergency for the number 
of persons served. In determining the number of persons served, a space 
must be considered to contain at least the number of persons as follows:
    (1) Passenger overnight accommodation spaces: Designed capacity;
    (2) Accommodation spaces having fixed seating for passengers: 
Maximum seating capacity;
    (3) Public spaces, including spaces such as casinos, restaurants, 
club

[[Page 230]]

rooms, and cinemas, and public accommodation spaces as defined in 
Sec. 175.400 of this subchapter, except overnight accommodation spaces: 
One person may be permitted for each 0.9 square meters (10 square feet) 
of deck area. In computing such deck area, the following areas must be 
excluded:
    (i) Areas for which the number of persons permitted is determined 
using the fixed seating criterion;
    (ii) Obstructions, including stairway and elevator enclosures, 
elevated stages, bars, and cashier stands, but not including slot 
machines, tables, or other room furnishings;
    (iii) Toilets and washrooms;
    (iv) Interior passageways less than 860 millimeters (34 inches) wide 
and passageways on open deck less than 710 millimeters (28 inches) wide;
    (v) Spaces necessary for handling lifesaving equipment, anchor 
handling equipment, or line handling gear, or in way of sail booms or 
running rigging; and
    (vi) Bow pulpits, swimming platforms, and areas that do not have a 
solid deck, such as netting on multi hull vessels;
    (4) Crew overnight accommodation spaces: Two-thirds designed 
capacity; and
    (5) Work spaces: Occupancy under normal operating conditions.
    (e) The dimensions of a means of escape must be such as to allow 
easy movement of persons when wearing life jackets. There must be no 
protrusions in means of escape that could cause injury, ensnare 
clothing, or damage life jackets.
    (f) The minimum clear opening of a door or passageway used as a 
means of escape must not be less than 810 millimeters (32 inches) in 
width, however, doors or passageways used solely by crew members must 
have a clear opening not less than 710 millimeters (28 inches). The sum 
of the width of all doors and passageways used as means of escape from a 
space must not be less than 8.4 millimeters (0.333 inches) multiplied by 
the number of passengers for which the space is designed.
    (g) A dead end passageway, or the equivalent, of more than 6.1 
meters (20 feet) in length is prohibited.
    (h) Each door, hatch, or scuttle, used as a means of escape, must be 
capable of being opened by one person, from either side, in both light 
and dark conditions. The method of opening a means of escape must be 
obvious, rapid, and of adequate strength. Handles and securing devices 
must be permanently installed and not capable of being easily removed. A 
door, hatch or scuttle must open towards the expected direction of 
escape from the space served.
    (i) A means of escape which is not readily apparent to a person from 
both inside and outside the space must be adequately marked in 
accordance with Sec. 185.606 of this chapter.
    (j) A ladder leading to a deck scuttle may not be used as a means of 
escape except:
    (1) On a vessel of not more than 19.8 meters (65 feet) in length, a 
vertical ladder and a deck scuttle may be used as not more than one of 
the means of escape from passenger accommodation space; or
    (2) As not more than one of the means of escape from any crew 
accommodation space or work space.
    (k) Each ladder used as a means of escape must be mounted at least 
180 millimeters (7 inches) from the nearest permanent object in back of 
the ladder. Rungs must be:
    (1) At least 405 millimeters (16 inches) in width; and
    (2) Not more than 305 millimeters (12 inches) apart, and uniformly 
spaced for the length of the ladder with at least 114 millimeters (4.5 
inches) clearance above each rung.
    (l) When a deck scuttle serves as a means of escape, it must not be 
less than 455 millimeters (18 inches) in diameter and must be fitted 
with a quick acting release and a holdback device to hold the scuttle in 
an open position.
    (m) Footholds, handholds, ladders, and similar means provided to aid 
escape, must be suitable for use in emergency conditions, of rigid 
construction, and permanently fixed in position, unless they can be 
folded, yet brought into immediate service in an emergency.
    (n) On a vessel of not more than 19.8 meters (65 feet) in length, a 
window or windshield of sufficient size and proper accessibility may be 
used as one of the

[[Page 231]]

required means of escape from an enclosed space, provided it:
    (1) Does not lead directly overboard;
    (2) Can be opened or is designed to be kicked or pushed out; and
    (3) Is suitably marked.
    (o) Only one means of escape is required from a space where:
    (1) The space has a deck area less than 30 square meters (322 square 
feet);
    (2) There is no stove, heater, or other source of fire in the space;
    (3) The means of escape is located as far as possible from a 
machinery space or fuel tank; and
    (4) If an accommodation space, the single means of escape does not 
include a deck scuttle or a ladder.
    (p) Alternative means of escape from spaces may be provided if 
acceptable to the cognizant OCMI.

[CGD 85-080, 61 FR 961, Jan. 10, 1996; 62 FR 64306, Dec. 5, 1997]



                         Subpart F--Ventilation



Sec. 177.600  Ventilation of enclosed and partially enclosed spaces.

    (a) An enclosed or partially enclosed space within a vessel must be 
adequately ventilated in a manner suitable for the purpose of the space.
    (b) A power ventilation system must be capable of being shut down 
from the pilot house.
    (c) An enclosed passenger or crew accommodation space and any other 
space occupied by a crew member on a regular basis must be ventilated by 
a power ventilation system unless natural ventilation in all ordinary 
weather conditions is satisfactory to the OCMI.
    (d) An exhaust duct over a frying vat or a grill must be of at least 
11 U.S. Standard Gauge steel.
    (e) Combustibles and other foreign materials are not allowed within 
ventilation ducts. However, metal piping and electrical wiring installed 
in a metal protective enclosure may be installed within ventilation 
ducts, provided that the piping or the wiring does not interfere with 
the operation of fire dampers. Electrical wiring and piping may not be 
installed in an exhaust duct over a frying vat or grill.

[CGD 85-080, 61 FR 961, Jan. 10, 1996, as amended at 62 FR 51356, Sept. 
30, 1997]



Sec. 177.620  Ventilation of machinery and fuel tank spaces.

    In addition to the requirements of this subpart, ventilation systems 
for spaces containing machinery or fuel tanks must comply with the 
requirements of part 182 of this chapter.



                         Subpart G--Crew Spaces



Sec. 177.700  General requirements.

    (a) A crew accommodation space and a work space must be of 
sufficient size, adequate construction, and with suitable equipment to 
provide for the safe operation of the vessel and the protection and 
accommodation of the crew in a manner practicable for the size, 
facilities, service, route, speed, and modes of operation of the vessel.
    (b) The deck above a crew accommodation space must be located above 
the deepest load waterline.



Sec. 177.710  Overnight accommodations.

    Overnight accommodations must be provided for all crew members if 
the vessel is operated more than 12 hours in a 24 hour period, unless 
the crew is put ashore and the vessel is provided with a new crew.

[CGD 85-080, 61 FR 961, Jan. 10, 1996, as amended by CGD 97-057, 62 FR 
51050, Sept. 30, 1997]



                   Subpart H--Passenger Accommodations



Sec. 177.800  General requirements.

    (a) All passenger accommodations must be arranged and equipped to 
provide for the safety of the passengers in consideration of the route, 
modes of operation, and speed of the vessel.
    (b) The height of ceilings in a passenger accommodation space, 
including aisles and passageways, must be at least 1,880 millimeters (74 
inches), but may be reduced at the sides of a space to allow the camber, 
wiring, ventilation ducts, and piping.
    (c) A passenger accommodation space must be maintained to minimize 
fire

[[Page 232]]

and safety hazards and to preserve sanitary conditions. Aisles must be 
kept clear of obstructions.
    (d) A passenger accommodation space must not contain:
    (1) Electrical generation equipment or transformers, high 
temperature parts, pipelines, rotating assemblies, or any other item 
that could injure a passenger, unless such an item is adequately 
shielded or isolated; and
    (2) A control for operating the vessel, unless the control is so 
protected and located that operation of the vessel by a crew member will 
not be impeded by a passenger during normal or emergency operations.
    (e) The deck above a passenger accommodation space must be located 
above the deepest load waterline.
    (f) A variation from a requirement of this subpart may be authorized 
by the cognizant OCMI for an unusual arrangement or design provided 
there is no significant reduction of space, accessibility, safety, or 
sanitation.



Sec. 177.810  Overnight accommodations.

    (a) A berth must be provided for each passenger authorized to be 
carried in overnight accommodation spaces. Each berth must measure at 
least 1,880 millimeters (74 inches) by 610 millimeters (24 inches) and 
have at least 610 millimeters (24 inches) of clear space above.
    (b) Berths must not be located more than three high and must be 
constructed of wood, fiber reinforced plastic, or metal. A berth located 
more than 1520 millimeters (60 inches) above the deck must be fitted 
with a suitable aid for access.
    (c) The construction and arrangement of berths and other furniture 
must allow free and unobstructed access to each berth. Each berth must 
be immediately adjacent to an aisle leading to a means of escape from 
the accommodation space. An aisle alongside a berth must be at least 610 
millimeters (24 inches) wide. An aisle joining two or more aisles in an 
overnight accommodation space must be at least 1,060 millimeters (42 
inches) wide.

[CGD 85-080, 61 FR 961, Jan. 10, 1996, as amended by CGD 97-057, 62 FR 
51050, Sept. 30, 1997]



Sec. 177.820  Seating.

    (a) A seat must be provided for each passenger permitted in a space 
for which the fixed seating criterion in Sec. 176.113(b)(3) of this 
subchapter has been used to determine the number of passengers 
permitted.
    (b) A seat must be constructed to minimize the possibility of injury 
and avoid trapping occupants.
    (c) Installation of seats must provide for ready escape.
    (d) Seats, including fixed, temporary, or portable seats, must be 
arranged as follows:
    (1) An aisle of not more than 3.8 meters (15 feet) in overall length 
must be not less than 610 millimeters (24 inches) in width.
    (2) An aisle of more than 3.8 meters (15 feet) in overall length 
must be not less than 760 millimeters (30 inches) in width.
    (3) Where seats are in rows, the distance from seat front to seat 
front must be not less than 760 millimeters (30 inches) and the seats 
must be secured to a deck or bulkhead.
    (4) Seats used to determine the number of passengers permitted, in 
accordance with Sec. 176.113(b)(3) of this chapter, must be secured to 
the deck, bulkhead, or bulwark.



                       Subpart I--Rails and Guards



Sec. 177.900  Deck rails.

    (a) Except as otherwise provided in this section, rails or 
equivalent protection must be installed near the periphery of all decks 
of a vessel accessible to passengers or crew. Equivalent protection may 
include lifelines, wire rope, chains, and bulwarks, which provide 
strength and support equivalent to fixed rails. Deck rails must include 
a top rail with the minimum height required by this section, and lower 
courses or equivalent protection as required by this section.
    (b) Deck rails must be designed and constructed to withstand a point 
load of 91 kilograms (200 pounds) applied at any point in any direction, 
and a uniform load of 74 kilograms per meter (50 pounds per foot) 
applied to the top rail

[[Page 233]]

in any direction. The point and uniform loads do not need to be applied 
simultaneously.
    (c) Where space limitations make deck rails impractical for areas 
designed for crew use only, such as at narrow catwalks in way of 
deckhouse sides, hand grabs may be substituted.
    (d) The height of top rails required by paragraph (a) of this 
section must be as follows:
    (1) Rails on passenger decks of a ferry or a vessel engaged in 
excursion trips, including but not limited to sightseeing trips, dinner 
and party cruises, and overnight cruises, must be at least 1,000 
millimeters (39.5 inches) high.
    (2) Rails on a vessel subject to the 1966 International Convention 
on Load Lines must be at least 1,000 millimeters (39.5 inches) high.
    (3) All other rails must be at least 910 millimeters (36 inches) 
high.
    (4) While engaged in big game angling, the minimum rail height may 
be reduced to not less than 760 millimeters (30 inches) in way of a 
person using specialized angling techniques or equipment, such as when 
using a pedestal mounted fixed fighting chair on a low freeboard vessel, 
if it can be shown that a higher rail would interfere with the fishing 
operation and the lower rail would not significantly reduce safety. A 
rail complying with the requirements of paragraphs (d)(1), (2), or (3) 
of this section as applicable must be installed when big game angling is 
not being conducted.
    (e) Where the principal business of the vessel requires the 
discharge of persons or cargo in a seaway, such as on pilot boats and 
dive boats, the cognizant OCMI may accept alternatives to the rails 
required in paragraphs (d)(1), (2), and (3) of this section for those 
areas of a deck where passengers or cargo are discharged and for which 
removable rails, lifelines, or chains would hinder discharge operations.
    (f) A sailing vessel, an open boat, or any other vessel not 
specifically covered elsewhere in this section, must have rails of a 
minimum height or equivalent protection as considered necessary by the 
cognizant OCMI, based on the vessel's operation, route, and seating 
arrangement.
    (g) Rail courses or the equivalent must be installed between a top 
rail required by paragraph (a) of this section, and the deck so that no 
open space exists that is more than 305 millimeters (12 inches) high 
except:
    (1) On passenger decks of a ferry or of a vessel on an excursion 
trip the following must be installed:
    (i) Bulwarks;
    (ii) Chain link fencing or wire mesh that has openings of not more 
than 4 inches in diameter; or
    (iii) Bars, slats, rail courses, or an equivalent spaced at 
intervals of not more than 100 millimeters (4 inches).
    (2) On a vessel subject to the 1966 International Convention on Load 
Lines, rail courses, or an equivalent, must be installed so that there 
is not an open space higher than 230 millimeters (9 inches) from the 
deck to the first rail course or equivalent.
    (h) Rails must be permanently installed except that the following 
rails may be removable;
    (1) Rails in way of embarkation stations and boarding locations;
    (2) Rails over 760 millimeters (30 inches) high in way of fishing 
seats addressed by paragraph (d)(4) of this section; and
    (3) Rails on a vessel when the service of the vessel is routinely 
changed, as determined by the cognizant OCMI, and the required top rail 
height varies depending on the service of the vessel at a particular 
time.



Sec. 177.920  Storm rails.

    Suitable storm rails or hand grabs must be installed where necessary 
in passageways, at deckhouse sides, and at ladders and hatches.



Sec. 177.940  Guards in vehicle spaces.

    On a vessel authorized to carry one or more vehicles, suitable 
chains, cables, or other barriers must be installed at the end of each 
vehicle runway. In addition, temporary rails or equivalent protection 
must be installed in way of each vehicle ramp, in compliance with 
Sec. 177.900, when the vessel is underway.

[[Page 234]]



Sec. 177.960  Guards for exposed hazards.

    An exposed hazard, such as gears or rotating machinery, must be 
properly protected by a cover, guard, or rail.



Sec. 177.970  Protection against hot piping.

    Piping, including valves, pipe fittings and flanges, conveying 
vapor, gas, or liquid, the temperature of which exceeds 65.5 deg. C 
(150 deg. F), must be suitably insulated where necessary to prevent 
injuries.



              Subpart J--Window Construction and Visibility



Sec. 177.1010  Safety glazing materials.

    Glass and other glazing material used in windows accessible to 
passengers and crew must be of material that will not break into 
dangerous fragments if fractured.

[CGD 85-080, 61 FR 961, Jan. 10, 1996; 61 FR 20557, May 7, 1996]



Sec. 177.1020  Strength.

    Each window, port hole, and its means of attachment to the hull or 
deck house, must be capable of withstanding the maximum load from wave 
and wind conditions expected due to its location on the vessel and the 
authorized route of the vessel.



Sec. 177.1030  Operating station visibility.

    (a) Windows and other openings at the operating station must be of 
sufficient size and properly located to provide an adequate view for 
safe navigation in all operating conditions.
    (b) Glass or other glazing material used in windows at the operating 
station must have a light transmission of not less than 70 percent 
according to Test 2 of American National Standards Institute (ANSI) Z 
26.1 ``Safety Glazing Materials For Motor Vehicles Operating on Land 
Highways,'' and must comply with Test 15 of ANSI Z 26.1 for Class I 
Optical Deviation.



PART 178--INTACT STABILITY AND SEAWORTHINESS--Table of Contents




                      Subpart A--General Provisions

Sec.
178.115  Applicability to existing vessels.

        Subpart B--Stability Instructions for Operating Personnel

178.210  Stability information.
178.220  Stability booklet.
178.230  Stability letter or Certificate of Inspection stability 
          details.

                  Subpart C--Intact Stability Standards

178.310  Applicability based on length and passenger capacity.
178.320  Intact stability requirements.
178.325  Intact stability requirements for a sailing vessel.
178.330  Simplified stability proof test.
178.340  Stability standards for pontoon vessels on protected waters.

                  Subpart D--Drainage of Weather Decks

178.410  Drainage of flush deck vessels.
178.420  Drainage of cockpit vessels.
178.430  Drainage of well deck vessels.
178.440  Drainage of open boats.
178.450  Calculation of drainage area for cockpit and well deck vessels.

                    Subpart E--Special Installations

178.510  Ballast.

    Authority: 43 U.S.C. 1333; 46 U.S. 2103, 3306, 3703; E.O. 12234, 45 
FR 58801, 3 CFR, 1980 Comp., p. 277; 49 CFR 1.46.

    Source: CGD 85-080, 61 FR 966, Jan. 10, 1996, unless otherwise 
noted.



                      Subpart A--General Provisions



Sec. 178.115  Applicability to existing vessels.

    An existing vessel must comply with the intact stability and 
seaworthiness regulations which were applicable to the vessel on March 
10, 1996, or, as an alternative, the vessel may comply with the 
regulations in this part.



        Subpart B--Stability Instructions for Operating Personnel



Sec. 178.210  Stability information.

    (a) Stability information (stability details indicated on the 
Certificate of

[[Page 235]]

Inspection, a stability letter, or a stability booklet) is required on 
certain vessels by paragraphs (b) or (c) of this section. Enough 
stability information, including stability calculations and assumptions 
made to use them, must be provided to allow the master to be able to 
determine operating guidelines, loading restrictions, and ensure 
compliance with the applicable intact and damage stability regulations 
of this chapter.
    (b) A vessel which, under Sec. 178.310, must comply with 
requirements in subchapter S of this chapter, must have stability 
details on the vessel's Certificate of Inspection, a stability letter 
issued by the cognizant Officer in Charge, Marine Inspection (OCMI) or 
the Commanding Officer, Marine Safety Center, or an approved stability 
booklet. The form in which the stability information must be contained 
(i.e., stability details on the Certificate of Inspection, a stability 
letter, or a stability booklet) will be determined by the Commanding 
Officer, Marine Safety Center.
    (c) When necessary for safe operation, the cognizant OCMI may place 
specific stability restrictions in a stability letter or on the 
Certificate of Inspection of a vessel of not more than 19.8 meters (65 
feet) in length, which, under Sec. 178.310 of this part, must comply 
with the requirements of Sec. 178.320 of this part.



Sec. 178.220  Stability booklet.

    When the Commanding Officer, Marine Safety Center determines, in 
accordance with Sec. 178.210(b), that a vessel must have a stability 
booklet, the owner or operator must prepare the booklet in accordance 
with subchapter S of this chapter, and submit it to the Commanding 
Officer, Marine Safety Center.



Sec. 178.230  Stability letter or Certificate of Inspection stability details.

    (a) When the cognizant OCMI or the Commanding Officer, Marine Safety 
Center determines, in accordance with Sec. 178.210, that a vessel must 
have stability details indicated on its Certificate of Inspection or a 
stability letter, the owner or operator must submit the information 
listed in paragraph (b) of this section:
    (1) If Sec. 178.210(c) is applicable, to the OCMI for approval; or
    (2) If Sec. 178.210(b) is applicable, to the Commanding Officer, 
Marine Safety Center for approval.
    (b) The following applicable information, and the necessary 
calculations used to determine that information, must be submitted as 
required by paragraph (a) of this section:
    (1) Allowable number of passengers and crew on each deck;
    (2) Deepest waterline drafts or freeboard;
    (3) Location of watertight bulkheads and openings in watertight 
bulkheads;
    (4) Explanation of the vessel's subdivision and specific 
identification of the vessel's subdivision bulkheads;
    (5) Location of openings through watertight bulkheads, such as 
watertight doors, which must be closed to limit flooding in an 
emergency;
    (6) Location, type and amount of fixed ballast;
    (7) Location and details of foam flotation material; and
    (8) Maximum weight of portable equipment permitted on the vessel 
including diving equipment.



                  Subpart C--Intact Stability Standards



Sec. 178.310  Applicability based on length and passenger capacity.

    (a) A vessel of not more than 19.8 meters (65 feet) in length must 
meet the applicable requirements of Sec. 178.320 or 178.325, or of 
Secs. 170.170, 170.173, and 171.050 in subchapter S of this chapter, if:
    (1) Carrying not more than 150 passengers on a domestic voyage;
    (2) Carrying not more than 12 passengers on an international voyage; 
or
    (3) It has not more than one deck above the bulkhead deck, exclusive 
of a pilot house.
    (b) The following vessels must meet the appropriate requirements of 
Secs. 170.170, 170.173, 171.050, 171.055, and 171.057 in subchapter S of 
this chapter;
    (1) A vessel of more than 19.8 meters (65 feet) in length;

[[Page 236]]

    (2) A vessel carrying more than 12 passengers on an international 
voyage; and
    (3) A vessel with more than 1 deck above the bulkhead deck exclusive 
of a pilot house.

[CGD 85-080, 61 FR 966, Jan. 10, 1996, as amended at 62 FR 51356, Sept. 
30, 1997]



Sec. 178.320  Intact stability requirements.

    (a) A vessel, except a pontoon vessel operating on protected waters, 
must undergo a simplified stability proof test in accordance with 
Sec. 178.330 of this part in the presence of a Coast Guard marine 
inspector.
    (b) A pontoon vessel operating on protected waters must undergo a 
simplified stability proof test in accordance with Sec. 178.340 of this 
part in the presence of a Coast Guard marine inspector.
    (c) The cognizant OCMI may dispense with the simplified stability 
proof test in Sec. 178.330 for a vessel carrying not more than 49 
passengers where it can be established that, due to the form, 
arrangement, construction, number of decks, route, and operating 
restrictions of the vessel, the vessel's stability can be safely 
determined without such a test. Vessels which carry deck cargo must 
undergo a simplified stability proof test.
    (d) A vessel whose stability is questioned by the cognizant OCMI 
must be shown by design calculations to meet the applicable stability 
criteria of Secs. 170.170, 170.173, and 171.050 in subchapter S of this 
chapter in each condition of loading and operation.
    (e) A simplified stability proof test in accordance with 
Sec. 178.330 is conducted to determine if a vessel, as built and 
operated, has a minimum level of initial stability. Failure of the 
simplified test does not necessarily mean that the vessel lacks 
stability for the intended route, service, and operating condition, but 
that calculations or other methods must be used to evaluate the 
stability of the vessel.

[CGD 85-080, 61 FR 966, Jan. 10, 1996; 61 FR 20557, May 7, 1996]



Sec. 178.325  Intact stability requirements for a sailing vessel.

    (a) Except as provided in paragraphs (b), (c) and (e) of this 
section, each sailing vessel must undergo a simplified stability proof 
test in accordance with Sec. 178.330 of this part in the presence of a 
Coast Guard marine inspector.
    (b) Each of the following sailing vessels must meet the intact 
stability standards of Secs. 170.170 and 171.055 in subchapter S of this 
chapter:
    (1) A vessel to be operated on exposed waters;
    (2) A vessel to be operated during non-daylight hours;
    (3) A vessel of unusual type, rig, or hull form, including vessels 
without a weathertight deck, such as open boats;
    (4) A vessel that carries more than 49 passengers;
    (5) A sailing school vessel that carries a combined total of six or 
more sailing school students or instructors;
    (6) A vessel on which downflooding occurs at angles of 60 deg. or 
less; and
    (7) A vessel which has a cockpit longer than Length Over Deck (LOD)/
5.
    (c) A catamaran must meet the intact stability requirements of 
Sec. 171.057 in subchapter S of this chapter while under sail as well as 
the intact stability requirements of Sec. 170.170 in subchapter S of 
this chapter or Sec. 178.320 under barepoles (if an auxiliary sailing 
vessel) and with storm sails set and trimmed flat (if a sailing vessel).
    (d) A sailing vessel that is not listed in paragraph (b) or (c) of 
this section and operates on partially protected waters must be equipped 
with a self-bailing cockpit.
    (e) The cognizant OCMI may perform operational tests to determine 
whether the vessel has adequate stability and satisfactory handling 
characteristics under sail for protected waters or partially protected 
waters, in lieu of conducting a simplified stability proof test.
    (f) Commanding Officer, Marine Safety Center, may prescribe 
additional or different stability requirements for a broad, shallow 
draft vessel with little or no ballast outside the hull.

[[Page 237]]



Sec. 178.330  Simplified stability proof test.

    (a) A vessel must be in the condition specified in this paragraph 
when a simplified stability proof test is performed.
    (1) The construction of the vessel must be complete in all respects.
    (2) Ballast, if necessary, must be in compliance with Sec. 178.510 
and must be on board and in place.
    (3) Each fuel and water tank must be approximately three-quarters 
full.
    (4) A weight equal to the total weight of all passengers, crew, and 
other loads permitted on the vessel must be on board and distributed so 
as to provide normal operating trim and to simulate the vertical center 
of gravity causing the least stable condition that is likely to occur in 
service. Unless otherwise specified, weight and vertical center of 
gravity is assumed to be as follows:
    (i) The weight of primary lifesaving equipment should be simulated 
at its normal location, if not on board at the time of the test;
    (ii) The weight of one person is considered to be 72.6 kilograms 
(160 pounds) except the weight of one person is considered to be 63.5 
kilograms (140 pounds) if the vessel operates exclusively on protected 
waters and the passenger load consists of men, women, and children;
    (iii) The vertical center for the simulated weight of passengers, 
crew, and other loads must be at least 760 millimeters (2.5 feet) above 
the deck; and
    (iv) If the vessel carries passengers on diving excursions, the 
total weight of diving gear must be included in the loaded condition as 
follows:
    (A) The total weight of individual diving gear for each passenger 
carried is assumed to be 36 kilograms (80 pounds), which includes the 
weight of scuba tanks, harness, regulator, weight belt, wet suit, mask, 
and other personal diving equipment; and
    (B) The weight of any air compressors carried.
    (v) On vessels having one upper deck above the main deck available 
to passengers, the weight distribution must not be less severe than the 
following:


Total Test Weight (W) = ----

Passenger Capacity of Upper Deck: ----


Weight on Upper Deck = ( of Passengers on Upper Deck) x (Wt per 
Passenger) x 1.33''
Weight on Main Deck = Total Test Weight-Weight on Upper Deck
    (5) All non-return closures on cockpit scuppers or on weather deck 
drains must be kept open during the test.
    (b) A vessel must not exceed the limitations in paragraph (f) of 
this section, when subjected to the greater of the following heeling 
moments:

Mp = (W) (Bp)/6; or
Mw = (P) (A) (H)

where:

Mp = passenger heeling moment in kilogram-meters (foot-
pounds);
W = the total passenger weight using 72.6 kilograms (160 pounds) per 
passenger, or, if the vessel operates exclusively on protected waters 
and the passenger load consists of men, women, and children, 63.5 
kilograms (140 pounds) per passenger may be used;
Bp = the maximum transverse distance in meters (feet) of a 
deck that is accessible to passengers;
Mw = wind heeling moment in kilogram-meters (foot-pounds);
P = wind pressure of:
    (1) 36.6 kilograms/square meter (7.5 pounds/square foot) for 
operation on protected waters;
    (2) 48.8 kilogram/square meter (10.0 pounds/square foot) for 
operation on partially protected waters; or
    (3) 73.3 kilograms/square meter (15.0 pounds/square foot) for 
operation on exposed waters;
A = area, in square meters (square feet), of the projected lateral 
surface of the vessel above the waterline (including each projected area 
of the hull, superstructure and area bounded by railings and structural 
canopies). For sailing vessels this is the bare poles area, or, if the 
vessel has no auxiliary power, with storm sails set; and
H = height, in meters (feet), of the center of area (A) above the 
waterline, measured up from the waterline.

    (c) For sailing vessels the heeling moment used for this test must 
be the greater of the following:
    (1) Passenger heeling moment from paragraph (b) of this section.

[[Page 238]]

    (2) Wind heeling moment from paragraph (b) of this section.
    (3) Wind heeling moment calculated from the wind heeling moment 
equation in paragraph (b) of this section, where:

Mw = wind heeling moment in kilogram-meters (foot-pounds);
P=4.9 kilograms/square meter (1.0 pounds/square foot) for both protected 
and partially protected waters.
A=the windage area of the vessel in square meters (square feet) with all 
sails set and trimmed flat;
H=height, in meters (feet), of the center of effort of area (A) above 
the waterline, measured up from the waterline; and

    (d) A vessel must not exceed the following limits of heel:
    (1) On a flush deck vessel, not more than one-half of the freeboard 
may be immersed.
    (2) On a well deck vessel, not more than one-half of the freeboard 
may be immersed, except that, on a well deck vessel that operates on 
protected waters and has non-return scuppers or freeing ports, the full 
freeboard may be immersed if the full freeboard is not more than one-
quarter of the distance from the waterline to the gunwale.
    (3) On a cockpit vessel, the maximum allowable immersion is 
calculated from the following equation:
    (i) On exposed waters--

i=f(2L-1.5L')/4L

    (ii) On protected or partially protected waters--

i=f(2L-L')/4L

where:

i=maximum allowable immersion in meters (feet);
f=freeboard in meters (feet);
L=length of the weather deck, in meters (feet); and
L'=length of cockpit in meters (feet).

    (4) On an open boat, not more than one quarter of the freeboard may 
be immersed.
    (5) On a flush deck sailing vessel, the full freeboard may be 
immersed.
    (6) In no case may the angle of heel exceed 14 degrees.
    (e) The limits of heel must be measured at:
    (1) The point of minimum freeboard; or
    (2) At a point three-quarters of the vessel's length from the bow if 
the point of minimum freeboard is aft of this point.
    (f) When demonstrating compliance with paragraph (d) of this 
section, the freeboard must be measured as follows:
    (1) For a flush deck or well deck vessel, the freeboard must be 
measured to the top of the weatherdeck at the side of the vessel; and
    (2) For a cockpit vessel or for an open boat, the freeboard must be 
measured to the top of the gunwale.
    (g) A ferry must also be tested in a manner acceptable to the 
cognizant OCMI to determine whether the trim or heel during loading or 
unloading will submerge the deck edge. A ferry passes this test if, with 
the total number of passengers and the maximum vehicle weight permitted 
on board, the deck edge is not submerged during loading or unloading of 
the vessel.

[CGD 85-080, 61 FR 966, Jan. 10, 1996; 61 FR 20557, May 7, 1996, as 
amended at 62 FR 51356, Sept. 30, 1997; 62 FR 64306, Dec. 5, 1997]



Sec. 178.340  Stability standards for pontoon vessels on protected waters.

    (a) The portion of the deck accessible to passengers on a pontoon 
vessel must not extend beyond the outboard edge of either pontoon, nor 
beyond the forward or aft ends of the pontoons.
    (b) A pontoon vessel that has more than 2 pontoons or has decks 
higher than 150 milimeters (6 inches) above the pontoons must meet a 
stability standard acceptable to the Commanding Officer, Marine Safety 
Center.
    (c) A pontoon vessel must be in the condition described in 
Sec. 178.330(a) of this part when the simplified stability proof test is 
performed, except that the simulated load of passengers, crew, and other 
weights is initially centered on the vessel so that trim and heel are 
minimized.
    (d) A pontoon vessel has the minimum acceptable level of initial 
stability if it meets the following:
    (1) With the simulated load located at the extreme outboard position 
of the deck on the side with the least initial freeboard, the remaining 
exposed cross sectional area of the pontoon on that

[[Page 239]]

side must be equal to or greater than the cross sectional area submerged 
due to the load shift, as indicated in Figure 178.340(d)(1); and

[GRAPHIC] [TIFF OMITTED] TC01MR91.035

    (2) With the simulated load located on the centerline at the extreme 
fore or aft end of the deck, whichever position is further from the 
initial position of the load, the top of the pontoon must not be 
submerged at any location, as indicated in Figure 178.340(d)(2).

[[Page 240]]

[GRAPHIC] [TIFF OMITTED] TC01MR91.036


[CGD 85-080, 61 FR 966, Jan. 10, 1996, as amended by CGD 97-057, 62 FR 
51050, Sept. 30, 1997]



                  Subpart D--Drainage of Weather Decks



Sec. 178.410  Drainage of flush deck vessels.

    (a) Except as provided in paragraph (b) of this section, the weather 
deck on a flush deck vessel must be watertight and have no obstruction 
to overboard drainage.
    (b) Each flush deck vessel may have solid bulwarks in the forward 
one-third length of the vessel if:
    (1) The bulwarks do not form a well enclosed on all sides; and
    (2) The foredeck of the vessel has sufficient sheer to ensure 
drainage aft.

[CGD 85-080, 61 FR 966, Jan. 10, 1996, as amended at 62 FR 51357, Sept. 
30, 1997]



Sec. 178.420  Drainage of cockpit vessels.

    (a) Except as follows, the cockpit on a cockpit vessel may be 
watertight:
    (1) A cockpit may have companionways if the companionway openings 
have watertight doors, or weathertight doors and coamings which meet 
Sec. 179.360 of this subchapter.
    (2) A cockpit may have ventilation openings along its inner 
periphery if the vessel operates only on protected or partially 
protected waters.
    (b) The cockpit deck of a cockpit vessel that operates on exposed or 
partially protected waters must be at least 255 millimeters (10 inches) 
above the deepest load waterline unless the vessel complies with:
    (1) The intact stability requirements of Secs. 170.170, 170.173, 
171.050, 171.055, and 171.057 in subchapter S of this chapter;
    (2) The Type II subdivision requirements in Secs. 171.070, 171.072, 
and 171.073 in subchapter S of this chapter; and
    (3) The damage stability requirements in Sec. 171.080 in subchapter 
S of this chapter.
    (c) The cockpit deck of a cockpit vessel that does not operate on 
exposed or partially protected waters must be located as high above the 
deepest load waterline as practicable.
    (d) The cockpit must be self-bailing. Scuppers or freeing ports for 
the cockpit deck of a cockpit vessel must:
    (1) Be located to allow rapid clearing of water in all probable 
conditions of list and trim;
    (2) Have a combined drainage area of at least the area required by 
Sec. 178.450 of this part; and

[[Page 241]]

    (3) If the deck is less than 255 millimeters (10 inches) above the 
deepest load waterline of the vessel, be fitted with non-return devices.



Sec. 178.430  Drainage of well deck vessels.

    (a) The weather deck on a well deck vessel must be watertight.
    (b) The area required on a well deck vessel for drainage of well 
formed by the bulwarks shall be determined by Sec. 178.450.
    (c) The freeing ports or scuppers on a well deck vessel must be 
located to allow rapid clearing of water in all probable conditions of 
list and trim.
    (d) The deck of well deck vessel that operates on exposed or 
partially protected waters must be at least 255 millimeters (10 inches) 
above the deepest load waterline unless the vessel complies with:
    (1) The intact stability requirements of Secs. 170.170, 170.173, 
171.050, 171.055, and 171.057 in subchapter S of this chapter;
    (2) The Type II subdivision requirements in Secs. 171.070, 171.072, 
and 171.073 in subchapter S of this chapter; and
    (3) The damage stability requirements in Sec. 171.080 in subchapter 
S of this chapter.



Sec. 178.440  Drainage of open boats.

    The deck within the hull of an open boat must drain to the bilge. 
Overboard drainage of the deck is not permitted.



Sec. 178.450  Calculation of drainage area for cockpit and well deck vessels.

    (a) The drainage area required on a vessel must be computed using 
the following formula:

For protected waters required drainage=.1xBasic Drainage
For partially protected waters required drainage=.5xBasis Drainage
For exposed waters required drainage=Basic Drainage

where:

Basic Drainage area in centimeters 2=4389.12x[(Recess 
VolumexRecess Ratio)+(Weather Deck VolumexWeather Deck Ratio)]; or
Basic Drainage area in inch 2=(Recess VolumexRecess 
Ratio)+(Weather Deck VolumexWeather Deck Ratio)
Recess Volume=(BRxDR)-VR

    BR=average height in centimeters (feet) of the bulwark 
above the well deck or cockpit deck;
    DR=total deck area of the cockpit or well deck in the 
after \2/3\ of the vessel length (LOD) measured in centimeters 
2 (feet 2).
    VR=volume of any weather tight structure below the 
bulwark of the well deck or cockpit deck.
Recess Ratio=LR/LC

    LR=the length of the recess in the after \2/3\ vessel 
length (LOD).
    LC=\2/3\ vessel length (LOD).

Weather Deck Volume=(BDxDD)-VS

    BD=average height in centimeters (feet) of the bulwark 
above the weather deck;
    DD=total deck area of the weather deck adjacent to 
bulwarks but not in way of the cockpit or well deck in the after \2/3\ 
of the vessel length (LOD) measured in centimenters 2 (feet 
2).
    VS=volume of any weather tight superstructure below the 
bulwark on the weather deck located within DD.

Weather Deck Ratio=LD/LC

    LD=the length of the weather deck bulwark in the after 
\2/3\ of the vessel length (LOD).
    LC=\2/3\ vessel length (LOD).

    (b) Vessels with bulwarks in the forward part of the vessel shall 
not form a well with the deckhouse which retains water.

[CGD 85-080, 61 FR 966, Jan. 10, 1996; 61 FR 20557, May 7, 1996]



                    Subpart E--Special Installations



Sec. 178.510  Ballast.

    (a) Any solid fixed ballast used to comply with the requirements of 
parts 170, 171, 178, and 179 of this chapter must be:
    (1) Stowed in a manner that prevents shifting of the ballast; and
    (2) Installed to the satisfaction of the cognizant OCMI.
    (b) Solid fixed ballast may not be located forward of the collision 
bulkhead unless the installation and arrangement of the ballast and the 
collision

[[Page 242]]

bulkhead minimizes the risk of the ballast penetrating the bulkhead in a 
collision.
    (c) Solid fixed ballast may not be removed from a vessel or 
relocated unless approved by the cognizant OCMI except that ballast may 
be temporarily moved for a vessel examination or repair if it is 
replaced to the satisfaction of the OCMI.
    (d) Water ballast, either as an active system or permanent, must be 
approved by the Commanding Officer, Marine Safety Center.



PART 179--SUBDIVISION, DAMAGE STABILITY, AND WATERTIGHT INTEGRITY--Table of Contents




                      Subpart A--General Provisions

Sec.
179.115  Applicability to existing vessels.

        Subpart B--Subdivision and Damage Stability Requirements

179.210  Collision bulkhead.
179.212  Watertight bulkheads for subdivision.
179.220  Location of watertight bulkheads for subdivision.
179.230  Damage stability requirements.
179.240  Foam flotation material.

              Subpart C--Watertight Integrity Requirements

179.310  Collision bulkheads.
179.320  Watertight bulkheads.
179.330  Watertight doors.
179.340  Trunks.
179.350  Openings in the side of a vessel below the bulkhead or weather 
          deck.
179.360  Watertight integrity.

    Authority: 43 U.S.C. 1333; 46 U.S.C. 2103, 3306, 3703; E.O. 12234, 
45 FR 58801, 3 CFR, 1980 Comp., p. 277; 49 CFR 1.46.

    Source: CGD 85-080, 61 FR 971, Jan. 10, 1996, unless otherwise 
noted.



                      Subpart A--General Provisions



Sec. 179.115  Applicability to existing vessels.

    An existing vessel must comply with the subdivision, damage 
stability, and watertight integrity regulations which were applicable to 
the vessel on March 10, 1996, or, as an alternative, the vessel may 
comply with the regulations in this part.



        Subpart B--Subdivision and Damage Stability Requirements



Sec. 179.210  Collision bulkhead.

    (a) A vessel of more than 19.8 meters (65 feet) in length must have 
a collision bulkhead.
    (b) A vessel of not more than 19.8 meters (65 feet) in length must 
have a collision bulkhead if it:
    (1) Carries more than 49 passengers;
    (2) Operates on exposed waters;
    (3) Is of more than 12.2 meters (40 feet) in length and operates on 
partially protected waters; or
    (4) Is constructed of wood on or after March 11, 2001, and operates 
in cold water.
    (c) A double-ended ferry required to have a collision bulkhead must 
have a collision bulkhead at each end of the vessel.



Sec. 179.212  Watertight bulkheads for subdivision.

    (a) A vessel of not more than 19.8 meters (65 feet) in length must 
comply with Sec. 179.220 of this part if it:
    (1) Carries more than 49 passengers; or
    (2) Is constructed of wood on or after March 11, 2001, and operates 
in cold water.
    As an alternative, the above vessels may comply with the intact 
stability requirements of Secs. 170.170, 170.173, 171.050 and 171.055 of 
this chapter, and comply with the Type II subdivision requirements of 
Secs. 171.070 through 171.073 in subchapter S of this chapter.
    (b) A vessel of more than 19.8 meters (65 feet) in length must 
comply with the Type II subdivision requirements of Secs. 171.070 
through 171.073 in subchapter S of this chapter.
    (c) A vessel that carries more than 12 passengers on an 
international voyage must meet the Type II subdivision requirements of 
Secs. 171.070 through 171.073 in subchapter S of this chapter.



Sec. 179.220  Location of watertight bulkheads for subdivision.

    (a) The maximum distance between adjacent main transverse watertight 
bulkheads on a vessel, required by Sec. 179.212(a) of this part to 
comply with this section, must not be more than the smaller of the 
following:

[[Page 243]]

    (1) One third of the length of the bulkhead deck; or
    (2) The distance given by the following equation:
    [GRAPHIC] [TIFF OMITTED] TR10JA96.009
    
where:

d=the maximum length of the bulkhead deck in meters (feet) between 
adjacent main transverse watertight bulkheads;
F=the floodable length factor from Table 179.220(a);
f=the effective freeboard in meters (feet) calculated for each pair of 
adjacent bulkheads in accordance with paragraph (b) of this section;
L=Length Over Deck in meters (feet) measured over the bulkhead deck; and
D=the depth in meters (feet), measured amidships at a point one-quarter 
of the maximum beam out from the centerline, from the inside of the 
bottom planking or plating to the level of the top of the bulkhead deck 
at side as shown in Figure 179.220(a).

           Table 179.220(a)--Table of Floodable Length Factors
------------------------------------------------------------------------
            (d/L) x 100                               F
------------------------------------------------------------------------
                    0-15                                 0.33
                      20                                 0.34
                      25                                 0.36
                      30                                 0.38
                      35                                 0.43
                      40                                 0.48
                      45                                 0.54
                      50                                 0.61
                      55                                 0.63
                      60                                 0.58
                      65                                 0.53
                      70                                 0.48
                      75                                 0.44
                      80                                 0.40
                      85                                 0.37
                  90-100                                 0.34
------------------------------------------------------------------------
Note 1: Where: d=distance in meters (feet) from the midpoint of the
  compartment to the forward-most point on the bulkhead deck excluding
  sheer; and L=length over deck in meters (feet) measured over the
  bulkhead deck.
Note 2: Intermediate values of floodable length factor may be obtained
  by interpolation.


[[Page 244]]

[GRAPHIC] [TIFF OMITTED] TC01MR91.037

    (b) The effective freeboard for each compartment is calculated by 
the following equation:

f=(a+b)/2

where:

f=the effective freeboard in meters (feet).
a=the freeboard in meters (feet) measured:

    (1) At the forward main transverse watertight bulkhead; and
    (2) From the deepest waterline to:
    (i) The top of the bulkhead deck on a flush deck vessel; or
    (ii) If a vessel has a stepped bulkhead deck, the line shown in 
Figure 179.220(b); or
    (iii) If a vessel has an opening port light below the bulkhead deck, 
the line shown in Figure 179.220(c).

b=the freeboard in meters (feet) measured:


[[Page 245]]


    (1) At the aft main transverse watertight bulkhead; and
    (2) From the deepest waterline to:
    (i) The top of the bulkhead deck on a flush deck vessel; or
    (ii) If a vessel has a stepped bulkhead deck, the line shown in 
Figure 1 to Sec. 179.220(b); or
[GRAPHIC] [TIFF OMITTED] TC01MR91.038


[[Page 246]]


[GRAPHIC] [TIFF OMITTED] TC01MR91.039


    (iii) if a vessel has an opening port light below the bulkhead deck, 
the line shown in Figure 2 to Sec. 179.220(b).

[CGD 85-080, 61 FR 971, Jan. 10, 1996; 61 FR 20557, May 7, 1996]



Sec. 179.230  Damage stability requirements.

    A vessel which, in accordance with Sec. 179.212, must meet the 
requirements of Secs. 171.070 through 171.073 in subchapter S of this 
chapter for Type II subdivision, shall also meet the damage stability 
requirements of Sec. 171.080 in subchapter S of this chapter.

[CGD 85-080, 61 FR 971, Jan. 10, 1996, as amended at 62 FR 51357, Sept. 
30, 1997]



Sec. 179.240  Foam flotation material.

    (a) Foam may only be installed as flotation material on a vessel 
when approved by the cognizant OCMI.
    (b) If foam is installed as flotation material on a vessel, the 
owner shall ensure that the following tests are conducted and 
requirements are met, to the satisfaction of the cognizant OCMI:
    (1) All foam must comply with MIL-P-21929C. The fire resistance test 
is not required.
    (2) Foam may be installed only in void spaces that are free of 
ignition sources, unless the foam complies with the requirements of 33 
CFR 183.114;
    (3) Foam may be installed adjacent to fuel tanks only if the 
boundary between the tank and the space has double continuous fillet 
welds;
    (4) The structure enclosing the foam must be strong enough to 
accommodate the buoyancy of the foam;
    (5) Piping and cables must not pass through foamed spaces unless 
they are within piping and cable ways accessible from both ends;
    (6) Blocked foam must:
    (i) Be used in each area that may be exposed to water; and
    (ii) Have a protective cover, approved by the cognizant OCMI, to 
protect it from damage;
    (7) A water submergence test must be conducted on the foam for a 
period of at least 7 days to demonstrate to the satisfaction of the 
cognizant OCMI that the foam has adequate strength to

[[Page 247]]

withstand a hydrostatic head equivalent to that which would be imposed 
if the vessel were submerged to its bulkhead deck;
    (8) The effective buoyancy of the foam must be determined at the end 
of the submergence test required by paragraph (b)(7) of this section. 
The effective buoyancy or 881 kilograms per cubic meter (55 pounds per 
cubic foot), whichever is less, must be used in determining the location 
of watertight bulkheads for subdivision required by Sec. 179.212; and
    (9) The owner or operator must obtain sample foam specimens during 
installation of the foam and determine the density of the installed 
foam.

[CGD 85-080, 61 FR 971, Jan. 10, 1996, as amended at 62 FR 51357, Sept. 
30, 1997]



              Subpart C--Watertight Integrity Requirements



Sec. 179.310  Collision bulkheads.

    (a) Each collision bulkhead required by Sec. 179.210, must be 
constructed in accordance with Sec. 179.320, except that a collision 
bulkhead:
    (1) Must extend to the weather deck or to one deck above the 
bulkhead deck, whichever is lower, for service on oceans or coastwise 
routes; and
    (2) Must not be fitted with any type of penetration or opening 
except penetrations may be made if they are located as high and as far 
inboard as practicable and they have a means to make them watertight.
    (b) The forward collision bulkhead required to be on a vessel by 
Sec. 179.210 must be:
    (1) Located at least 5 percent but not more than 15 percent of the 
length between perpendiculars (LBP) aft of the forward perpendicular, or 
for vessels with bulbous bows extending forward of the forward 
perpendicular and contributing more than 2 percent of the underwater 
volume of the vessel, located at least 5 percent but not more than 15 
percent of the LBP aft of the mid-length of such extension; and
    (2) Installed in a single plane, with no recess or step, up to the 
bulkhead deck;
    (c) The after collision bulkhead on a double-ended ferry of more 
than 19.8 meters (65 feet) in length must be:
    (1) At least 5 percent but not more than 15 percent of the LBP 
forward of the after perpendicular; and
    (2) Installed in a single plane, with no recess or step, at least up 
to the bulkhead deck.



Sec. 179.320  Watertight bulkheads.

    (a) Each watertight bulkhead must be of sufficient strength to be 
capable of remaining watertight with a head of water to the top of the 
bulkhead.
    (b) Each watertight bulkhead must extend to the bulkhead deck and be 
installed in one plane without steps or recesses insofar as is 
reasonable and practicable. Any steps or recesses permitted must comply 
with the applicable subdivision requirements in this subchapter.
    (c) The number of penetrations in a watertight bulkhead must be 
minimized. A penetration in a watertight bulkhead must be as high and as 
far inboard in the bulkhead as practicable, and made watertight.
    (d) Sluice valves are not permitted in watertight bulkheads.



Sec. 179.330  Watertight doors.

    (a) Hinged watertight doors are not permitted in bulkheads required 
by Secs. 179.210 or 179.212 unless the vessel will not proceed more than 
20 nautical miles from shore and:
    (1) The door separates a machinery space from an accommodation space 
and, in the judgment of the cognizant OCMI, the door will be kept closed 
except when a person is passing through the door; or
    (2) The Commandant determines that, due to the arrangements of the 
vessel, the door will be kept closed except when a person is passing 
through the door.
    (b) A hinged watertight bulkhead door must be fitted with a quick 
action closing devise operable from both sides of the door and indicator 
lights at the operating station showing whether the door is open or 
closed.
    (c) Sliding watertight doors must meet the requirements of part 170, 
subpart H in subchapter S of this chapter.
    (d) No more than one watertight door may be fitted in a watertight 
bulkhead, and it must be located as high and as far inboard as 
practicable.

[[Page 248]]



Sec. 179.340  Trunks.

    Where a trunk (i.e., an enclosed passageway through a deck or 
bulkhead) is installed, it must comply with the requirements of 
Sec. 179.360(a)(1) and with the requirements of Sec. 171.113 in 
subchapter S of this chapter.



Sec. 179.350  Openings in the side of a vessel below the bulkhead or weather deck.

    (a) On a vessel operating on exposed or partially protected waters, 
an opening port light is not permitted below the weather deck unless the 
sill of the port light is at least 760 millimeters (30 inches) above the 
deepest load waterline.
    (b) A port light must have an inside, hinged dead cover regardless 
of whether the port light is or is not capable of being opened.
    (c) Except for engine exhausts, each inlet or discharge pipe that 
penetrates the hull below a line drawn parallel to and at least 150 
millimeters (6 inches) above the deepest load waterline must have means 
to prevent water from entering the vessel if the pipe fractures or 
otherwise fails.
    (d) A positive action valve or cock that is located as close as 
possible to the hull is an acceptable means for complying with paragraph 
(c) of this section.
    (e) If an inlet or discharge pipe is inaccessible, the means for 
complying with paragraph (c) of this section must be a shut-off valve 
that is:
    (1) Operable from the weather deck or any other accessible location 
above the bulkhead deck; and
    (2) Labeled at the operating point for identity and direction of 
closing.
    (f) Any connecting device or valve in a hull penetration must not be 
cast iron.
    (g) Each plug cock in an inlet or discharge pipe must have a means, 
other than a cotter pin, to prevent its loosening or removal from the 
body.



Sec. 179.360  Watertight integrity.

    (a) A hatch exposed to the weather must be watertight, except that 
the following hatches may be weathertight:
    (1) A hatch on a watertight trunk that extends at least 305 
millimeters (12 inches) above the weather deck;
    (2) A hatch in a cabin top; and
    (3) A hatch on a vessel that operates only on protected waters.
    (b) A hatch cover must:
    (1) Have securing devices; and
    (2) Be attached to the hatch frame or coaming by hinges, captive 
chains, or other devices of substantial strength to prevent its loss.
    (c) A hatch cover that provides access to accommodation spaces must 
be operable from either side.
    (d) A weathertight door must be provided for each opening located in 
a deck house or companionway. Permanent watertight coamings must be 
provided as follows:
    (1) On a vessel on an exposed or partially protected route, a 
watertight coaming with a height of at least 150 millimeters (6 inches) 
must be provided under each weathertight door in a cockpit or a well, or 
on the main deck of a flush deck vessel.
    (2) On a vessel on a protected route, a watertight coaming with a 
height of at least 75 millimeters (3 inches) must be provided under each 
weathertight door in a cockpit or a well.
    (3) The height of the watertight coaming for a hinged watertight 
door need only be sufficient to accommodate the door.



PART 180--LIFESAVING EQUIPMENT AND ARRANGEMENTS--Table of Contents




                      Subpart A--General Provisions

Sec.
180.10  Applicability to vessels on an international voyage.
180.15  Applicability to existing vessels.
180.25  Additional requirements.

                   Subpart B--Emergency Communications

180.64  Emergency Position Indicating Radiobeacons (EPIRB).
180.68  Distress flares and smoke signals.

               Subpart C--Ring Life Buoys and Life Jackets

180.70  Ring life buoys.
180.71  Life jackets.
180.72  Personal flotation devices carried in addition to life jackets.
180.75  Life jacket lights.

[[Page 249]]

180.78  Stowage of life jackets.

          Subpart D--Survival Craft Arrangements and Equipment

180.130  Stowage of survival craft.
180.137  Stowage of life floats and buoyant apparatus.
180.150  Survival craft embarkation arrangements.
180.175  Survival craft equipment.

              Subpart E--Number and Type of Survival Craft

180.200  Survival craft--general.
180.202  Survival craft--vessels operating on oceans routes.
180.204  Survival craft--vessels operating on coastwise routes.
180.205  Survival craft--vessels operating on limited coastwise routes.
180.206  Survival craft--vessels operating on Great Lakes routes.
180.207  Survival craft--vessels operating on lakes, bays, and sounds 
          routes.
180.208  Survival craft--vessels operating on rivers routes.
180.210  Rescue boats.

    Authority: 46 U.S.C. 2104, 3306; E.O. 12234, 45 FR 58801, 3 CFR, 
1980 Comp., p. 277; 49 CFR 1.46.

    Source: CGD 85-080, 61 FR 975, Jan. 10, 1996, unless otherwise 
noted.



                      Subpart A--General Provisions



Sec. 180.10  Applicability to vessels on an international voyage.

    A vessel on an international voyage subject to the International 
Convention for the Safety of Life at Sea, 1974, (SOLAS) must meet the 
requirements in subchapter W of this chapter for passenger vessels in 
the same service, instead of the requirements of this part.

[CGD 85-080, 62 FR 51357, Sept. 30, 1997]



Sec. 180.15  Applicability to existing vessels.

    An existing vessel must comply with the requirements of this part 
except as otherwise specified by this section.
    (a) Before March 11, 2001, or 10 years after the vessel's keel was 
laid or the vessel was at a similar stage of construction, whichever is 
later, an existing vessel may comply with the requirements in effect for 
the vessel prior to March 11, 1996, for the number and type of survival 
craft, stowage arrangements, and launching appliances for survival 
craft.
    (b) On or before March 11, 2001, or 10 years after the vessel's keel 
was laid or the vessel was at a similar stage of construction, whichever 
is later, an existing vessel must:
    (1) Be equipped with the number of survival craft required for its 
route under Secs. 180.202, 180.204, 180.205, 180.206, 180.207, or 
180.208, as applicable; and
    (2) Comply with the stowage and launching appliance requirements for 
survival craft in Secs. 180.130 through 180.150, inclusive.
    (c) A vessel that meets the following requirements shall be 
considered in compliance with the subdivision requirements contained in 
Secs. 180.202, 180.204, 180.205, 180.206, 180.207 and 180.208:
    (1) The vessel was constructed before March 11, 2001.
    (2) The vessel is of not more than 19.8 meters (65 feet) in length 
and carries not more than 49 passengers;
    (3) The vessel meets the standards for collision bulkheads in 
Sec. 179.310 of this chapter; and
    (4) The vessel meets the standards for one-compartment subdivision 
in Secs. 179.220 and 179.320 of this chapter, at least in way of the 
engine room and lazarette.
    (d) Each inflatable liferaft, inflatable buoyant apparatus, life 
float, and buoyant apparatus on the vessel on March 11, 1996, may be 
used to meet the requirements of this part for these survival craft as 
long as the survival craft is continued in use on the vessel, and is in 
good and serviceable condition.
    (e) New installations of lifesaving equipment on an existing vessel, 
which are completed to the satisfaction of the cognizant Officer in 
Charge, Marine Inspection, (OCMI) on or after March 11, 1996, must 
comply with the regulations in this part. Replacement of existing 
lifesaving equipment installed before March 11, 1996, must meet the 
requirements of paragraph (a) of this section.
    (f) A combination flare and smoke distress signal approved in 
accordance with Sec. 160.023 in subchapter Q of this chapter may be used 
on an existing vessel until the expiration date of the distress signal 
but no later than March

[[Page 250]]

11, 1999, as one of the distress signals required by Sec. 180.68.
    (g) Until February 1, 1999, a Coast Guard approved 121.5/243 MHz 
Class A Emergency Position Indicating Radiobeacon (EPIRB) may be used to 
meet the requirement for an EPIRB under Sec. 180.64, if the EPIRB:
    (1) Is operable;
    (2) Is installed to automatically float-free and activate;
    (3) Was manufactured on or after October 1, 1988; and
    (4) Was installed on the vessel on or before March 11, 1996.
    (h) Until February 1, 1999, a Federal Communications Commission 
(FCC) Type Accepted VHF-FM Class C EPIRB may be used to meet the 
requirement for an EPIRB on a vessel operating on a Great Lakes route 
under Sec. 180.64, if the EPIRB:
    (1) Is operable; and
    (2) Was installed on the vessel on or before March 11, 1996.
    (i) Until March 11, 1997, an existing vessel on a limited coastwise 
route, need not comply with Sec. 180.64.
    (j) An existing vessel need not comply with Sec. 180.78(a)(4).
    (k) An existing vessel must comply with Sec. 180.210 or may comply 
with the regulations for rescue boats that were in effect for the vessel 
prior to March 11, 1996.

[CGD 85-080, 61 FR 975, Jan. 10, 1996; 61 FR 24464, May 15, 1996]



Sec. 180.25  Additional requirements.

    (a) Each item of lifesaving equipment carried on board a vessel but 
not required under this part, must be approved by the Commandant.
    (b) The cognizant Officer in Charge, Marine Inspection (OCMI) may 
require a vessel to carry specialized or additional lifesaving equipment 
if:
    (1) The OCMI determines the conditions of the voyage render the 
requirements of this part inadequate; or
    (2) The vessel is operated in Arctic, Antarctic, or other severe 
conditions not covered under this part.



                   Subpart B--Emergency Communications



Sec. 180.64  Emergency Position Indicating Radiobeacons (EPIRB).

    Each vessel that operates on the high seas, or that operates beyond 
three miles from the coastline of the Great Lakes, must have on board a 
FCC Type Accepted Category 1, 406 MHz EPIRB, installed to automatically 
float free and activate.



Sec. 180.68  Distress flares and smoke signals.

    (a) Oceans, coastwise, limited coastwise, and Great Lakes routes. A 
vessel on an oceans, coastwise, limited coastwise, or Great Lakes route 
must carry--
    (1) Six hand red flare distress signals approved in accordance with 
Sec. 160.021 in subchapter Q of this chapter, or other standard 
specified by the Commandant; and
    (2) Six hand orange smoke distress signals approved in accordance 
with Sec. 160.037 in subchapter Q of this chapter, or other standard 
specified by the Commandant.
    (b) Lakes, bays, and sounds, and rivers routes. A vessel on a lakes, 
bays, and sounds, or rivers route must carry:
    (1) Three hand red flare distress signals approved in accordance 
with Sec. 160.021 in subchapter Q of this chapter, or other standard 
specified by the Commandant; and
    (2) Three hand orange smoke distress signals approved in accordance 
with Sec. 160.037 in subchapter Q of this chapter, or other standard 
specified by the Commandant.
    (c) Substitutions. (1) A rocket parachute flare approved in 
accordance with Sec. 160.036 in subchapter Q of this chapter, or other 
standard specified by the Commandant may be substituted for any of the 
hand red flare distress signals required under paragraph (a) or (b) of 
this section.
    (2) One of the following may be substituted for any of the hand 
orange smoke distress signals required under paragraph (a) or (b) of 
this section:

[[Page 251]]

    (i) A rocket parachute flare approved in accordance with 
Sec. 160.036 in subchapter Q of this chapter, or other standard 
specified by the Commandant.
    (ii) A hand red flare distress signal approved in accordance with 
Sec. 160.021 in subchapter Q of this chapter, or other standard 
specified by the Commandant.
    (iii) A floating orange smoke distress signal approved in accordance 
with Sec. 160.022 in subchapter Q of this chapter, or other standard 
specified by the Commandant.
    (d) Exemption for vessels on short runs. A vessel operating on short 
runs limited to approximately 30 minutes away from the dock is not 
required to carry distress flares and smoke signals under this section.
    (e) Stowage. Each flare carried to meet this section must be stowed 
in one of the following:
    (1) A portable watertight container marked as required by 
Sec. 185.614 of this chapter, carried at the operating station; or
    (2) A pyrotechnic locker secured above the freeboard deck, away from 
heat, in the vicinity of the operating station.

[CGD 85-080, 61 FR 975, Jan. 10, 1996; 61 FR 20557, May 7, 1996, as 
amended at 62 FR 51357, Sept. 30, 1997]



               Subpart C--Ring Life Buoys and Life Jackets



Sec. 180.70  Ring life buoys.

    (a) A vessel must have one or more ring life buoys as follows:
    (1) A vessel of not more than 7.9 meters (26 feet) in length must 
carry a minimum of one life buoy of not less than 510 millimeters (20 
inches) in diameter;
    (2) A vessel of more than 7.9 meters (26 feet) in length, but not 
more than 19.8 meters (65 feet), must carry a minimum of one life buoy 
of not less than 610 millimeters (24 inches) in diameter; and
    (3) A vessel of more than 19.8 meters (65 feet) in length must carry 
a minimum of three life buoys of not less than 610 millimeters (24 
inches) in diameter.
    (b) Each ring life buoy on a vessel must:
    (1) Be approved in accordance with Sec. 160.050 in subchapter Q of 
this chapter, or other standard specified by the Commandant;
    (2) Be readily accessible;
    (3) Be stowed in a way that it can be rapidly cast loose;
    (4) Not be permanently secured in any way; and
    (5) If on a vessel on an oceans or coastwise route, be orange in 
color.
    (c) At least one ring life buoy must be fitted with a lifeline. If 
more than one ring life buoy is carried, at least one must not have a 
lifeline attached. Each lifeline on a ring life buoy must:
    (1) Be buoyant;
    (2) Be of at least 18.3 meters (60 feet) in length;
    (3) Be non-kinking;
    (4) Have a diameter of at least 7.9 millimeters (\5/16\ inch);
    (5) Have a breaking strength of at least 5 kilonewtons (1,124 
pounds); and
    (6) Be of a dark color if synthetic, or of a type certified to be 
resistant to deterioration from ultraviolet light.
    (d) A vessel must carry one floating waterlight, unless it is 
limited to daytime operation, in which case no floating waterlight is 
required.
    (1) Each floating waterlight must be approved in accordance with 
Sec. 161.010 in subchapter Q of this chapter, or other standard 
specified by the Commandant.
    (2) Each ring life buoy with a floating waterlight must have a 
lanyard of at least 910 millimeters (3 feet) in length, but not more 
than 1,830 millimeters (6 feet), securing the waterlight around the body 
of the ring life buoy.
    (3) Each floating waterlight installed after March 11, 1997, on a 
vessel carrying only one ring buoy, must be attached to the lanyard with 
a corrosion-resistant clip. The clip must have a strength of at least 
22.7 kilograms (50 pounds), and allow the waterlight to be quickly 
disconnected from the ring life buoy.

[CGD 85-080, 61 FR 975, Jan. 10, 1996; 61 FR 20557, May 7, 1996, as 
amended by CGD 97-057, 62 FR 51050, Sept. 30, 1997; CGD 85-080, 62 FR 
51357, Sept. 30, 1997]



Sec. 180.71  Life jackets.

    (a) An adult life jacket must be provided for each person carried on 
board a vessel.

[[Page 252]]

    (b) In addition, a number of child size life jackets equal to at 
least 10% of the number of persons permitted on board must be provided, 
or such greater number as necessary to provide a life jacket for each 
person being carried that is smaller than the lower size limit of the 
adult life jackets provided to meet this section, except that:
    (1) Child-size life jackets are not required if the vessel's 
Certificate of Inspection is endorsed for the carriage of adults only; 
or
    (2) When all ``extended size'' life preservers (those with a lower 
size limit for persons of 1,195 millimeters (47 inches) in height or 
weighing 20.4 kilograms (45 pounds)) are carried on board, a minimum of 
only 5% additional child size devices need be carried.
    (c) Except as allowed by paragraph (d) of this section, each life 
jacket must be approved in accordance with either Secs. 160.002, 
160.005, or 160.055 in subchapter Q of this chapter, or other standard 
specified by the Commandant.
    (d) Cork and balsa wood life jackets previously approved in 
accordance with Secs. 106.003, or 160.004 in subchapter Q of this 
section, on board an existing vessel prior to March 11, 1996, may 
continue to be used to meet the requirements of this section until March 
11, 1999, provided the life jackets are maintained in good and 
serviceable condition.
    (e) Each life jacket carried on board the vessel must be marked in 
accordance with Sec. 185.604 of this chapter.

[CGD 85-080, 61 FR 975, Jan. 10, 1996; 61 FR 24464, May 15, 1996, as 
ammended by CGD 97-057, 62 FR 51050, Sept. 30, 1997; CGD 85-080, 62 FR 
51357, Sept. 30, 1997]



Sec. 180.72  Personal flotation devices carried in addition to life jackets.

    (a) Equipment carried under this section is not acceptable in lieu 
of any portion of the required number of approved life jackets and must 
not be substituted for the approved life jackets required to be worn 
during drills and emergencies.
    (b) Wearable marine buoyant devices that include ``ski vests,'' 
``boating vests,'' and ``fishing vests,'' approved in accordance with 
Sec. 160.064 in subchapter Q of this chapter, or other standard 
specified by the Commandant, may be carried as additional equipment.
    (c) Buoyant work vests approved in accordance with Sec. 160.053 in 
subchapter Q of this chapter, or other standard specified by the 
Commandant, may be carried as additional equipment for use of persons 
working near or over the water.
    (d) Commercial hybrid personal flotation devices (PFD) approved in 
accordance with Sec. 160.077 of this chapter, or other standard 
specified by the Commandant, may be carried as additional equipment for 
use of persons working near or over the water. Each commercial hybrid 
PFD must be:
    (1) Used, stowed, and maintained in accordance with the procedures 
set out in the manual required for these devices under Sec. 160.077-29 
in subchapter Q of this chapter and any limitation(s) marked on them; 
and
    (2) Of the same or similar design and have the same method of 
operation as each other hybrid PFD carried on board.



Sec. 180.75  Life jacket lights.

    (a) Each life jacket carried on a vessel on oceans, coastwise, or 
Great Lakes route, must have a life jacket light approved in accordance 
with Sec. 161.012 in subchapter Q of this chapter, or other standard 
specified by the Commandant. Each life jacket light must be securely 
attached to the front shoulder area of the life jacket.
    (b) Notwithstanding the requirements of paragraph (a) of this 
section, life jacket lights are not required for life jackets on:
    (1) Ferries; and
    (2) Vessels with Certificates of Inspection endorsed only for routes 
that do not extend more than 20 miles from a harbor of safe refuge.



Sec. 180.78  Stowage of life jackets.

    (a) General. Unless otherwise stated in this section, life jackets 
must be stored in convenient places distributed throughout accommodation 
spaces.
    (1) Each stowage container for life jackets must not be capable of 
being locked. If practicable, the container must be designed to allow 
the life jackets to float free.

[[Page 253]]

    (2) Each life jacket kept in a stowage container must be readily 
available.
    (3) Each life jacket stowed overhead must be supported in a manner 
that allows quick release for distribution.
    (4) If life jackets are stowed more than 2,130 millimeters (7 feet) 
above the deck, a means for quick release must be provided and must be 
capable of operation by a person standing on the deck.
    (5) Each child size life jacket must be stowed in a location that is 
appropriately marked and separated from adult life jackets so the child 
size life jackets are not mistaken for adult life jackets.
    (b) Additional personal flotation devices. The stowage locations of 
the personal flotation devices carried in addition to life jackets under 
Sec. 180.72, must be separate from the life jackets, and such as not to 
be easily confused with that of the life jackets.



          Subpart D--Survival Craft Arrangements and Equipment



Sec. 180.130  Stowage of survival craft.

    (a) Each survival craft must be:
    (1) Secured to the vessel by a painter with a float-free link 
permanently attached to the vessel except that a float-free link is not 
required if the vessel operates only on waters not as deep as the length 
of the painter;
    (2) Stowed so that when the vessel sinks the survival craft floats 
free and, if inflatable, inflates automatically;
    (3) Stowed in a position that is readily accessible to crew members 
for launching, or else provided with a remotely operated device that 
releases the survival craft into launching position or into the water;
    (4) Stowed in a way that permits manual release from its securing 
arrangements;
    (5) Ready for immediate use so that crew members can carry out 
preparations for embarkation and launching in less than 5 minutes;
    (6) Provided with means to prevent shifting;
    (7) Stowed in a way that neither the survival craft nor its stowage 
arrangements will interfere with the embarkation and operation of any 
other survival craft at any other launching station;
    (8) Stowed in a way that any protective covers will not interfere 
with launching and embarkation;
    (9) Fully equipped as required under this part; and
    (10) Stowed, as far as practicable, in a position sheltered from 
breaking seas and protected from damage by fire.
    (b) A hydrostatic release unit when used in a float-free arrangement 
must be approved under approval series 160.062 or 160.162 or other 
standard specified by the Commandant.
    (c) A mechanical, manually operated device to assist in launching a 
survival craft must be provided if:
    (1) The survival craft weights more than 90.7 kilograms (200 
pounds); and
    (2) The survival craft requires lifting more than 300 vertical 
millimeters (one vertical foot) to be launched.

[CGD 85-080, 61 FR 975, Jan. 10, 1996, as amended at 62 FR 51357, Sept. 
30, 1997; 62 FR 64306, Dec. 5, 1997]



Sec. 180.137  Stowage of life floats and buoyant apparatus.

    (a) In addition to meeting Sec. 180.130, each life float and buoyant 
apparatus must be stowed as required under this section,
    (b) The float-free link required by Sec. 180.130(a)(1) must be:
    (1) Certified to meet Sec. 160.073 in subchapter Q of this chapter, 
or other standard specified by the Commandant;
    (2) Of proper strength for the size of the life float or buoyant 
apparatus as indicated on its identification tag; and
    (3) Secured to the painter at one end and to the vessel on the other 
end.
    (c) The means used to attach the float-free link to the vessel must:
    (1) Have a breaking strength of at least the breaking strength of 
the painter;
    (2) If synthetic, be of a dark color or of a type certified to be 
resistant to deterioration from ultraviolet light; and
    (3) If metal, be corrosion resistant.
    (d) If the life float or buoyant apparatus does not have a painter 
attachment fitting, a means for attaching the painter must be provided 
by a wire or line that:
    (1) Encircles the body of the device;
    (2) Will not slip off;

[[Page 254]]

    (3) Has a breaking strength that is at least the strength of the 
painter; and
    (4) If synthetic, is of a dark color or is of a type certified to be 
resistant to deterioration from ultraviolet light.
    (e) If the vessel carries more than one life float or buoyant 
apparatus in a group with each group secured by a single painter:
    (1) The combined weight of each group of life floats and buoyant 
apparatus must not exceed 181 kilograms (400 pounds);
    (2) Each group of life floats and buoyant apparatus is considered a 
single survival craft for the purposes of Sec. 180.130(c);
    (3) Each life float and buoyant apparatus must be individually 
attached to the painter by a line meeting Secs. 180.175(e)(3) (ii), 
(iii), and (iv) and long enough that each life float or buoyant 
apparatus can float without contacting any other life float or buoyant 
apparatus in the group; and
    (4) The strength of the float-free link under paragraph (b)(2) of 
this section and the strength of the painter under 
Sec. 180.175(e)(3)(ii) must be determined by the combined capacity of 
the group of life floats and buoyant apparatus.
    (f) Life floats and buoyant apparatus must not be stowed in tiers 
more than 1,220 millimeters (4 feet) high. When stowed in tiers, the 
separate units must be kept apart by spacers.

[CGD 85-080, 61 FR 975, Jan. 10, 1996; 61 FR 20557, May 7, 1996]



Sec. 180.150  Survival craft embarkation arrangements.

    (a) A launching appliance approved under approval series 160.163 or 
a marine evacuation system approved under approval series 160.175 must 
be provided for each inflatable liferaft and inflatable buoyant 
apparatus when either--
    (1) The embarkation station for the survival craft is on a deck more 
than 4.5 meters (15 feet) above the waterline; or
    (2) The inflatable liferaft and inflatable buoyant apparatus is 
boarded prior to being placed in the water.
    (b) An embarkation ladder, approved in accordance with Sec. 160.017 
in subchapter Q of this chapter, or other standard specified by the 
Commandant, must be at each embarkation station if the distance from the 
deck on which an embarkation station is located to the vessel's lightest 
operating waterline is more than 3,050 millimeters (10 feet).

[CGD 85-080, 61 FR 975, Jan. 10, 1996, as amended by CGD 97-057, 62 FR 
51050, Sept. 30, 1997; CGD 85-080, 62 FR 51357, Sept. 30, 1997]



Sec. 180.175  Survival craft equipment.

    (a) General. Each item of survival craft equipment must be of good 
quality, and efficient for the purpose it is intended to serve. Unless 
otherwise stated in this section, each item of equipment carried, 
whether required under this section or not, must be secured by lashings, 
stored in lockers, compartments, brackets, or have equivalent mounting 
or storage arrangements that do not:
    (1) Reduce survival craft capacity;
    (2) Reduce space available to the occupants;
    (3) Interfere with launching, recovery, or rescue operations; or
    (4) Adversely affect seaworthiness of the survival craft.
    (b) Inflatable liferafts. Each inflatable liferaft must have one of 
the following equipment packs as shown by the markings on its container:
    (1) Safety of Life at Sea (SOLAS) B Pack; or
    (2) SOLAS A Pack.
    (c) Inflatable buoyant apparatus. Each inflatable buoyant apparatus 
must be equipped in accordance with the manufacturer's approved 
servicing manual.
    (d) Life floats. Each life float must be fitted with a lifeline, 
pendants, two paddles, a painter, and a light.
    (e) Buoyant apparatus. Each buoyant apparatus must be fitted with a 
lifeline, pendants, a painter, and a light.
    (f) Equipment specifications for life floats and buoyant apparatus. 
The equipment required for lifefloats and buoyant apparatus must meet 
the following specifications:
    (1) Lifeline and pendants. The lifeline and pendants must be as 
furnished by the manufacturer with the approved life float or buoyant 
apparatus. Replacement lifelines and pendants must meet the requirements 
in Subpart 160.010 of this chapter.
    (2) Paddle. Each paddle must be of at least 1,220 millimeters (4 
feet) in

[[Page 255]]

length, lashed to the life float to which it belongs and buoyant.
    (3) Painter. The painter must:
    (i) Be of at least 30.5 meters (100 feet) in length, but not less 
than 3 times the distance between the deck where the life float or 
buoyant apparatus it serves is stowed and the lowest load waterline of 
the vessel;
    (ii) Have a breaking strength of at least 680 kilograms (1,500 
pounds), except that if the capacity of the life float or buoyant 
apparatus is 50 persons or more, the breaking strength must be at least 
1,360 kilograms (3,000 pounds);
    (iii) Be of a dark color if synthetic, or of a type certified to be 
resistant to deterioration from ultraviolet light; and
    (iv) Be stowed in such a way that it runs out freely when the life 
float or buoyant apparatus floats away from a sinking vessel.
    (4) Light. The light must be a floating waterlight approved under 
approval series 161.010 or other standard specified by the Commandant. 
The floating waterlight must be attached around the body of the life 
float or buoyant apparatus by a 10 mm (3/8 inch) lanyard, resistant to 
deterioration from ultraviolet light, and at least 5.5 meters (18 feet) 
in length.
    (g) Other survival craft. If survival craft other than inflatable 
liferafts, life floats, inflatable buoyant apparatus, and buoyant 
apparatus are carried on the vessel, such as lifeboats or rigid 
liferafts, they must be installed, arranged, and equipped as required 
under subchapter H (Passenger Vessels) of this chapter for passenger 
vessels on the same route.

[CGD 85-080, 61 FR 975, Jan. 10, 1996, as amended at 62 FR 51357, Sept. 
30, 1997]



              Subpart E--Number and Type of Survival Craft



Sec. 180.200  Survival craft--general.

    (a) Each survival craft required on a vessel by this part must meet 
one of the following:
    (1) For an inflatable liferaft--Approved under approval series 
160.151 or other standard specified by the Commandant, with the 
applicable equipment pack, as determined by the cognizant OCMI. Each 
inflatable liferaft required on a vessel by this part must have a 
capacity of 6 persons or more. Inflatable liferafts may be substituted 
for inflatable buoyant apparatus or life floats required under this 
section;
    (2) For a life float--Approved under approval series 160.027 or 
other standard specified by the Commandant. Buoyant apparatus may be 
used to meet requirements for life floats if the buoyant apparatus was 
installed on board the vessel on or before March 11, 1996, and if the 
buoyant apparatus remains in good and serviceable condition;
    (3) For an inflatable buoyant apparatus--Approved under approval 
series 160.010 or other standard specified by the Commandant. Inflatable 
buoyant apparatus may be substituted for life floats required under this 
section.
    (4) For a buoyant apparatus--Approved under approval series 160.010 
or other standard specified by the Commandant. An existing buoyant 
apparatus may not be used to satisfy the requirements for life floats on 
existing vessels wishing to upgrade the total number of passengers 
carried on an oceans route.
    (b) If the vessel carries a small boat or boats, the capacity of 
these boats may be counted toward life float capacity required by this 
part. Such boats must meet the requirements for safe loading and 
flotation in 33 CFR part 183, and must meet the stowage, launching, and 
equipment requirements in this part for the survival craft they replace.
    (c) A summary of survival craft requirements is provided in Table 
180.200(c).

                            Table 180.200(c)
------------------------------------------------------------------------
            Route                     Survival craft requirements
------------------------------------------------------------------------
Oceans.......................  (a) cold water \1\--100% IBA--Sec.
                                180.202(a)(1).
                                 (i) w/subdivision \2\--100% LF--Sec.
                                180.202(a)(2).

[[Page 256]]

 
                               (b) warm water \3\--67% IBA \4\--Sec.
                                180.202(b).
Coastwise....................  (a) wood vsls in cold water.
                                 (i) 67% IBA--Sec.  180.204(a)(1).
                                 (ii) w/subdivision--100% LF--Sec.
                                180.204(a)(2).
                               (b) nonwood and vsls operating in warm
                                water.
                                 (i) 100% LF--Sec.  180.204 (b) and (c).
                               (c) within three miles of shore.
                                 (i) w/o subdivision--100% LF--Sec.
                                180.204(d)(1).
                                 (ii) w/subdivision--50% LF--Sec.
                                180.204(d)(2).
                                 (iii) w/float free 406 MHz EPIRB--50%
                                LF--Sec.  180.204(d)(3).
Limited Coastwise (Not more    (a) wood vsls in cold water.
 than 20 miles from a harbor   (i) 67% IBA--Sec.  180.205(a)(1).
 of safe refuge).              (ii) w/subdivision--100% LF--Sec.
                                180.205(a)(2).
                               (b) nonwood vessels in cold water--100%
                                LF--Sec.  180.205(b).
                               (c) within three miles of shore--Sec.
                                180.205(d).
                                   (A) w/o subdivision--100% LF.
                                   (B) w/subdivision--50% LF.
                                   (C) w/float free 406 MHz EPIRB--50%
                                LF.
                               (d) vessels operating in warm water.
                                 (i) 50% LF--Sec.  180.205(c).
                                 (ii) within three miles of shore.
                                   (A) w/o subdivision--50% LF--Sec.
                                180.205(e)(1).
                                   (B) w/subdivision--NONE--Sec.
                                180.205(e)(2).
                                   (C) w/float free 406 MHz EPIRB--NONE--
                                    Sec.  180.205(e)(3).
Great Lakes..................  (a) same as Limited Coastwise (a) & (b)--
                                Sec.  180.206(a).
                               (b) within one mile of shore--NONE \5\--
                                Sec.  180.206(b).
Lakes, Bays, & Sounds 6,7....  (a) wood vsls in cold water.
                                 (i) 100% LF--Sec.  180.207(a)(1).
                                 (ii) w/subdivision--50% LF--Sec.
                                180.207(a)(2).
                               (b) nonwood--50% LF--Sec.  180.207(b).
                               (c) within 1 mile of shore--NONE--Sec.
                                180.207(e).
                               (d) warm water--NONE--Sec.  180.207(c).
RIVERS 7,8...................  (a) cold water.
                                 (i) w/o subdivision--50% LF--Sec.
                                180.208(a)(1).
                                 (ii) w/subdivision--NONE--Sec.
                                180.208(a)(2).
                                 (iii) within one mile of shore--NONE--
                                Sec.  180.208(d).
                               (b) warm water--NONE--Sec.  180.208(b)
------------------------------------------------------------------------
Abbreviations used:
ILR=Inflatable liferaft
IBA=Inflatable Buoyant Apparatus
LF=Life Float. As allowed by Sec.  180.15(d) any buoyant apparatus in
  use on an existing vessel on March 11, 1996, may be used to meet the
  requirements for LF as long as the buoyant apparatus is in good and
  serviceable condition.
Footnotes:
\1\ Cold water means the cognizant OCMI has determined the monthly mean
  low temperature of the water is [le] 15  deg.C (59  deg.F).
\2\ Vessels [le] 65 ft carrying [le] 49 passengers built before March
  11, 2001, may meet the collision bulkhead standards in Sec.  179.310
  and one-compartment subdivision subdivision standards in Secs.
  179.220 and 179.320 at least in way of the engine room and lazarette
  in lieu of the subdivision requirements contained in this part.
\3\ Warm water means the cognizant OCMI has determined the monthly mean
  low temperature of the water is  15 deg. C (59 deg. F).
\4\ Vessels operating in warm water may substitute 100% LF in lieu of
  67% IBA--Sec.  180.202(d).
\5\ OCMI may reduce primary lifesaving for seasonal or ferry type
  operations on the Great Lakes--Sec.  180.206(b).
\6\ Shallow water exception--Sec.  180.207(e).
\7\ OCMI may reduce survival craft requirements based upon the route,
  communications schedule and participation in VTS--Sec.  180.207(f) and
  Sec.  180.208(e)
\8\ Shallow water exception--Sec.  180.208(e)C.

[CGD 85-080, 61 FR 975, Jan. 10, 1996, as amended at 62 FR 51357, Sept. 
30, 1997]



Sec. 180.202  Survival craft--vessels operating on oceans routes.

    (a) Each vessel certificated to operate on an oceans route in cold 
water must either:
    (1) Be provided with inflatable buoyant apparatus of an aggregate 
capacity that will accommodate at least 100% of the total number of 
persons permitted on board; or
    (2) Meet either the standards for collision bulkheads in 
Secs. 179.310 in this chapter or 171.085 in subchapter S of this 
chapter, and the standards for subdivision in Secs. 179.220 and 179.320 
of this chapter, or the standards for subdivision and damaged stability 
in Secs. 171.070 through 171.073 and 171.080 in subchapter S of this 
chapter, as appropriate, and be provided with life floats

[[Page 257]]

of an aggregate capacity that will accommodate at least 100% of the 
total number of persons permitted on board.
    (b) Each vessel certificated to operate on an oceans route in warm 
water must either:
    (1) Be provided with inflatable buoyant apparatus of an aggregate 
capacity that will accommodate at least 67% of the total number of 
persons permitted on board; or
    (2) Be provided with life floats of an aggregate capacity that will 
accommodate at least 100% of the total number of persons permitted on 
board.



Sec. 180.204  Survival craft--vessels operating on coastwise routes.

    (a) Except as allowed by paragraph (c) of this section, each vessel 
constructed of wood certificated to operate on a coastwise route in cold 
water must either:
    (1) Be provided with inflatable buoyant apparatus of an aggregate 
capacity that will accommodate at least 67% of the total number of 
persons permitted on board; or
    (2) Meet either the standards for collision bulkheads in 
Secs. 179.310 of this chapter or 171.085 in subchapter S of this chapter 
and the standards for subdivision in Secs. 179.220 and 179.320 of this 
chapter, or the standards for subdivision and damaged stability in 
Secs. 171.070 through 171.073 and 171.080 in subchapter S of this 
chapter, as appropriate, and be provided with life floats of an 
aggregate capacity that will accommodate at least 100% of the total 
number of persons permitted on board.
    (b) Each vessel constructed of a material other than wood 
certificated to operate on a coastwise route in cold water must be 
provided with life floats of an aggregate capacity that will accommodate 
at least 100% of the total number of persons permitted on board.
    (c) Except as allowed by paragraph (d) of this section, each vessel 
certificated to operate on a coastwise route in warm water must be 
provided with life floats of an aggregate capacity that will accommodate 
at least 100% of the total number of persons permitted on board.
    (d) Each vessel certificated to operate on a coastwise route within 
three miles of land must either:
    (1) Be provided with life floats of an aggregate capacity that will 
accommodate at least 100% of the total number of persons permitted on 
board; or
    (2) Meet either the standards for collision bulkheads in 
Secs. 179.310 of this subchapter or 171.085 in subchapter S of this 
chapter, and the standards for subdivision in Secs. 179.220 and 179.320 
of this chapter, or the standards for subdivision and damaged stability 
in Secs. 171.070 through 171.073 and 171.080 in subchapter S of this 
chapter, as appropriate, and be provided with life floats of an 
aggregate capacity that will accommodate at least 50% of the total 
number of persons permitted on board.
    (3) Have on board a FCC Type Accepted Category 1 406 MHz EPIRB, 
installed to automatically float free and activate, and be provided with 
life floats of an aggregate capacity that will accommodate at least 50% 
of the total number of persons permitted on board.

[CGD 85-080, 61 FR 975, Jan. 10, 1996; 61 FR 20557, May 7, 1996]



Sec. 180.205  Survival craft--vessels operating on limited coastwise routes.

    (a) Except as allowed by paragraph (d) of this section, each vessel 
constructed of wood certificated to operate on a limited coastwise route 
in cold water must either:
    (1) Be provided with inflatable buoyant apparatus of an aggregate 
capacity that will accommodate at least 67% of the total number of 
persons permitted on board; or
    (2) Meet either the standards for collision bulkheads in 
Secs. 179.310 of this chapter or 171.085 in subchapter S of this 
chapter, and the standards for subdivision in Secs. 179.220 and 179.320 
of this chapter, or the standards for subdivision and damaged stability 
in Secs. 171.070 through 171.073 and 171.080 in subchapter S of this 
chapter, as appropriate, and be provided with life floats of an 
aggregate capacity that will accommodate at least 100% of the total 
number of persons permitted on board.
    (b) Except as allowed by paragraph (d) of this section, each vessel 
constructed of a material other than wood certificated to operate on a 
limited coastwise route in cold water must be provided with life floats 
of an aggregate capacity that will accommodate

[[Page 258]]

at least 100% of the total number of persons permitted on board.
    (c) Except as allowed by paragraph (e) of this section, each vessel 
certificated to operate on a limited coastwise route in warm water must 
be provided with life floats of an aggregate capacity that will 
accommodate at least 50% of the total number of persons permitted on 
board.
    (d) Each vessel certificated to operate on a limited coastwise route 
within three miles of land in cold water must be provided with the 
survival craft required by Sec. 180.204(d).
    (e) Each vessel certificated to operate on a limited coastwise route 
within three miles of land in warm water must either:
    (1) Be provided with life floats of an aggregate capacity that will 
accommodate at least 50% of the total number of persons permitted on 
board; or
    (2) Meet either the standards for collision bulkheads in 
Secs. 179.310 of this chapter or 171.085 in subchapter S of this 
chapter, and the standards for subdivision in Secs. 179.220 and 179.320 
of this chapter, or the standards for subdivision and damaged stability 
in Secs. 171.070 through 171.073 and 171.080 in subchapter S of this 
chapter, as appropriate, and not be required to carry survival craft; or
    (3) Have on board a FCC Type Accepted Category 1 406 MHz EPIRB, 
installed to automatically float free and activate, and not be required 
to carry survival craft.



Sec. 180.206  Survival craft--vessels operating on Great Lakes routes.

    (a) Except as allowed by paragraph (b) of this section, each vessel 
certificated to operate on a Great Lakes route must be provided with the 
survival craft required by Sec. 180.205 (a) through (e), as appropriate.
    (b) Each vessel certificated to operate on a Great Lakes route 
within one mile of land is not required to carry survival craft if the 
OCMI determines that it is safe to do so, taking into consideration the 
vessel's scope of operation, hazards of the route, and availability of 
assistance.

[CGD 85-080, 61 FR 975, Jan. 10, 1996, as amended at 62 FR 51357, Sept. 
30, 1997]



Sec. 180.207  Survival craft--vessels operating on lakes, bays, and sounds routes.

    (a) Except as allowed by paragraphs (d), (e) and (f) of this 
section, each vessel constructed of wood certificated to operate on a 
lakes, bays, and sounds route in cold water must either:
    (1) Be provided with life floats of an aggregate capacity that will 
accommodate at least 100% of the total number of persons permitted on 
board; or
    (2) Meet either the standards for collision bulkheads in 
Secs. 179.310 of this chapter or 171.085 in subchapter S of this 
chapter, and the standards for subdivision in Secs. 179.220 and 179.320 
of this chapter, or the standards for subdivision and damaged stability 
in Secs. 171.070 through 171.073 and 171.080 in subchapter S of this 
chapter, as appropriate, and be provided with life floats of an 
aggregate capacity that will accommodate at least 50% of the total 
number of persons permitted on board.
    (b) Except as allowed by paragraphs (e) and (f) of this section, 
each vessel constructed of a material other than wood certificated to 
operate on a lakes, bays, and sounds route in cold water must be 
provided with life floats of an aggregate capacity that will accommodate 
at least 50% of the total number of persons permitted on board.
    (c) A vessel certificated to operate on a lakes, bays, and sounds 
route in warm water is not required to carry survival craft.
    (d) A vessel certificated to operate on lakes, bays, and sounds 
route within one mile of land is not required to carry survival craft.
    (e) For a vessel certificated to operate on a lakes, bays, and 
sounds route in shallow water where the vessel can not sink deep enough 
to submerge the topmost passenger deck or where survivors can wade 
ashore, the cognizant OCMI may waive a requirement for life floats, if 
the OCMI determines that it is safe to do so, taking into consideration 
the vessel's scope of operation, hazards of the route, and availability 
of assistance.
    (f) Each vessel operating with a set schedule on a specific route 
that does not take it more than 20 nautical miles from a harbor of safe 
refuge, and that

[[Page 259]]

maintains a 15 minute radio communications schedule with an operations 
base, or participates in a Vessel Traffic Service (VTS), may be granted 
a reduction in the survival craft requirements of this section if the 
cognizant OCMI is satisfied that a sufficient level of safety exists.

[CGD 85-080, 61 FR 975, Jan. 10, 1996; 61 FR 24464, May 15, 1996, as 
amended by CGD 97-057, 62 FR 51050, Sept. 30, 1997]



Sec. 180.208  Survival craft--vessels operating on rivers routes.

    (a) Except as allowed by paragraphs (c), (d) and (e) of this 
section, each vessel certificated to operate on a rivers route in cold 
water must either:
    (1) Be provided with life floats of an aggregate capacity that will 
accommodate at least 50% of the total number of persons permitted on 
board; or
    (2) Meet either the standards for collision bulkheads in 
Secs. 179.310 of this chapter or 171.085 in subchapter S of this 
chapter, and the standards for subdivision in Secs. 179.220 and 179.320 
of this chapter, or the standards for subdivision and damaged stability 
in Secs. 171.070 through 171.073 and 171.080 in subchapter S of this 
chapter, as appropriate, and not be required to carry survival craft.
    (b) A vessel certificated to operate on a rivers route in warm water 
is not required to carry survival craft.
    (c) A vessel certificated to operate on a rivers route within one 
mile of land is not required to carry survival craft.
    (d) For a vessel certificated to operate on a rivers route in 
shallow water where the vessel can not sink deep enough to submerge the 
topmost passenger deck or where survivors can wade ashore, the cognizant 
OCMI may waive a requirement for life floats, if the OCMI determines 
that it is safe to do so, taking into consideration the vessel's scope 
of operation, hazards of the route, and availability of assistance.
    (e) Each vessel operating with a set schedule on a specific route 
that maintains a 15 minute radio communications schedule with an 
operations base, or participates in a Vessel Traffic Service (VTS), may 
be granted a reduction in the survival craft requirement of this section 
if the cognizant OCMI is satisfied that a sufficient level of safety 
exists.

[CGD 85-080, 61 FR 975, Jan. 10, 1996, as amended by CGD 97-057, 62 FR 
51050, Sept. 30, 1997]



Sec. 180.210  Rescue boats.

    (a) A vessel of more than 19.8 meters (65 feet) in length must carry 
at least one rescue boat unless the cognizant OCMI determines that:
    (1) The vessel is sufficiently maneuverable, arranged, and equipped 
to allow the crew to recover a helpless person from the water;
    (2) Recovery of a helpless person can be observed from the operating 
station; and
    (3) The vessel does not regularly engage in operations that restrict 
its maneuverability.
    (b) A vessel of not more than 19.8 meters (65 feet) in length is not 
required to carry a rescue boat unless:
    (1) The vessel carries passengers on an open or partially enclosed 
deck; and
    (2) The cognizant OCMI determines that the vessel is designed, 
arranged, or involved in operations so that the vessel itself cannot 
serve as an adequate rescue craft.
    (c) In general, a rescue boat must be a small, lightweight boat with 
built-in buoyancy and capable of being readily launched and easily 
maneuvered. In addition, it must be of adequate proportion to permit 
taking an unconscious person on board without capsizing.
    (d) On a vessel of more than 19.8 meters (65 feet) in length 
operating on protected waters, a rescue boat approved under approval 
series 160.056 is acceptable in meeting the intent of this section. On a 
vessel of more than 19.8 meters operating on exposed or partially 
protected waters, a rescue boat approved under approval series 160.156 
is acceptable in meeting the intent of this section. On a vessel of not 
more than 19.8 meters (65 feet) in length, a required rescue boat must 
be acceptable to the cognizant OCMI.

[CGD 85-080, 61 FR 975, Jan. 10, 1996, as amended at 62 FR 51357, Sept. 
30, 1997; 62 FR 64306, Dec. 5, 1997]

[[Page 260]]



PART 181--FIRE PROTECTION EQUIPMENT--Table of Contents




                      Subpart A--General Provisions

Sec.
181.115  Applicability to existing vessels.
181.120  Equipment installed but not required.

Subpart B [Reserved]

                       Subpart C--Fire Main System

181.300  Fire pumps.
181.310  Fire main and hydrants.
181.320  Fire hoses and nozzles.

        Subpart D--Fixed Fire Extinguishing and Detecting Systems

181.400  Where required.
181.410  Fixed gas fire extinguishing systems.
181.420  Pre-engineered fixed gas fire extinguishing systems.
181.425  Galley hood fire extinguishing systems.
181.450  Independent modular smoke detecting units.

                 Subpart E--Portable Fire Extinguishers

181.500  Required number, type, and location.
181.520  Installation and location.

                     Subpart F--Additional Equipment

181.600  Fire axe.
181.610  Fire bucket.

    Authority: 46 U.S.C. 2103, 3306; E.O. 12234, 45 FR 58801, 3 CFR, 
1980 Comp., p. 277; 49 CFR 1.46.

    Source: CGD 85-080, 61 FR 982, Jan. 10, 1996, unless otherwise 
noted.



                      Subpart A--General Provisions



Sec. 181.115  Applicability to existing vessels.

    (a) Except as otherwise required by paragraphs (b) and (c) of this 
section, an existing vessel must comply with the fire protection 
equipment regulations applicable to the vessel on March 10, 1996, or, as 
an alternative, the vessel may comply with the regulations in this part.
    (b) An existing vessel with a hull, or a machinery space boundary 
bulkhead or deck, composed of wood or fiber reinforced plastic, or 
sheathed on the interior in fiber reinforced plastic, must comply with 
the requirements of Sec. 181.400 of this part on or before March 11, 
1999.
    (c) New installations of fire protection equipment on an existing 
vessel, which are completed to the satisfaction of the cognizant Officer 
in Charge, Marine Inspection (OCMI) on or after March 11, 1996, must 
comply with the regulations of this part. Replacement of existing 
equipment installed on the vessel prior to March 11, 1996, need not 
comply with the regulations in this part.



Sec. 181.120  Equipment installed but not required.

    Fire extinguishing and detecting equipment installed on a vessel in 
excess of the requirements of Secs. 181.400 and 181.500 must be 
designed, constructed, installed and maintained in accordance with a 
recognized industry standard acceptable to the Commandant.

Subpart B [Reserved]



                       Subpart C--Fire Main System



Sec. 181.300  Fire pumps.

    (a) A self priming, power driven fire pump must be installed on each 
vessel:
    (i) Of not more than 19.8 meters (65 feet) in length which is a 
ferry vessel;
    (ii) Of not more than 19.8 meters (65 feet) in length that carries 
more than 49 passengers; or
    (iii) Of more than 19.8 meters (65 feet) in length.
    (b) On a vessel of not more than 19.8 meters (65 feet) in length 
carrying more than 49 passengers, and on a vessel of more than 19.8 
meters (65 feet) in length, the minimum capacity of the fire pump must 
be 189 liters (50 gallons) per minute at a pressure of not less than 414 
kPa (60 psi) at the pump outlet. The pump outlet must be fitted with a 
pressure gauge.
    (c) On a ferry vessel of not more than 19.8 meters (65 feet) in 
length carrying not more than 49 passengers, the minimum capacity of the 
fire pump must be 38 liters (10 gallons) per minute. The fire pump must 
be capable of projecting a hose stream from the highest hydrant, through 
the hose and nozzle

[[Page 261]]

required by Sec. 181.320 of this part, a distance of 7.6 meters (25 
feet).
    (d) A fire pump may be driven by a propulsion engine. A fire pump 
must be permanently connected to the fire main and may be connected to 
the bilge system to meet the requirements of Sec. 182.520 of this 
chapter.
    (e) A fire pump must be capable of both remote operation from the 
operating station and local operations at the pump.

[CGD 85-080, 61 FR 982, Jan. 10, 1996, as amended at 62 FR 51358, Sept. 
30, 1997]



Sec. 181.310  Fire main and hydrants.

    (a) A vessel that has a power driven fire pump must have a 
sufficient number of fire hydrants to reach any part of the vessel using 
a single length of fire hose.
    (b) Piping, valves, and fittings in a fire main system must comply 
with subpart G, part 182, of this chapter.
    (c) Each fire hydrant must have a valve installed to allow the fire 
hose to be removed while the fire main is under pressure.

[CGD 85-080, 61 FR 982, Jan. 10, 1996, as amended at 62 FR 51358, Sept. 
30, 1997]



Sec. 181.320  Fire hoses and nozzles.

    (a) A fire hose with a nozzle must be attached to each fire hydrant 
at all times. For fire hydrants located on open decks or cargo decks, 
where no protection is provided, hoses may be temporarily removed during 
heavy weather or cargo handling operations, respectively. Hoses so 
removed must be stored in nearby accessible locations.
    (b) On a vessel of not more than 19.8 meters (65 feet) in length 
carrying more than 49 passengers, and on a vessel of more than 19.8 
meters (65 feet) in length, each hose must:
    (1) Be lined commercial fire hose that conforms to Underwriters 
Laboratory (UL) 19 ``Lined Fire Hose and Hose Assemblies,'' or hose that 
is listed and labeled by an independent laboratory recognized by the 
Commandant as being equivalent in performance;.
    (2) Be 15.25 meters (50 feet) in length and 40 millimeters (1.5 
inches) in diameter; and
    (3) Have fittings of brass or other suitable corrosion-resistant 
material that comply with National Fire Protection Association (NFPA) 
1963 ``Standard for Fire Hose Connections,'' or other standard specified 
by the Commandant.
    (c) Each fire hose on a vessel of not more than 19.8 meters (65 
feet) in length carrying not more than 49 passengers must:
    (1) Comply with paragraphs (b)(1) and (b)(3) of this section or be 
garden type hose of not less than 16 millimeters (0.625 inches) nominal 
inside diameter;
    (2) Be of one piece not less than 7.6 meters (25 feet) and not more 
than 15.25 meters (50 feet) in length; and
    (3) If of the garden type, be of a good commercial grade constructed 
of an inner rubber tube, plies of braided fabric reinforcement, and an 
outer cover of rubber or equivalent material, and of sufficient strength 
to withstand the maximum pressure that can be produced by the fire pump. 
All fittings on the hose must be of suitable corrosion-resistant 
material.
    (d) Each nozzle must be of corrosion-resistant material and be 
capable of being changed between a solid stream and a spray pattern. A 
nozzle on a vessel of not more than 19.8 meters (65 feet) in length 
carrying more than 49 passengers, and on a vessel of more than 19.8 
meters (65 feet) in length, must:
    (1) Be of a type approved in accordance with approval series 
162.027; or
    (2) Be of a type recognized by the Commandant as being equivalent in 
performance.

[CGD 85-080, 61 FR 982, Jan. 10, 1996; 61 FR 20557, May 7, 1996; 61 FR 
24464, May 15, 1996, as amended at 62 FR 51358, Sept. 30, 1997]



        Subpart D--Fixed Fire Extinguishing and Detecting Systems



Sec. 181.400  Where required.

    (a) The following spaces must be equipped with a fixed gas fire 
extinguishing system, in compliance with Sec. 181.410, or other fixed 
fire extinguishing system specifically approved by the Commandant, 
except as otherwise allowed by paragraph (b) of this section:

[[Page 262]]

    (1) A space containing propulsion machinery;
    (2) A space containing an internal combustion engine of more than 
37.3 kW (50 hp);
    (3) A space containing an oil fired boiler;
    (4) A space containing machinery powered by gasoline or other fuels 
having a flash point of 43.3 deg. C (110 deg. F) or lower;
    (5) A space containing a fuel tank for gasoline or any other fuel 
having a flash point of 43.3 deg. C (110 deg. F) or lower;
    (6) A space containing combustible cargo or ship's stores 
inaccessible during the voyage (in these types of spaces only carbon 
dioxide, and not Halon, systems will be allowed);
    (7) A paint locker; and
    (8) A storeroom containing flammable liquids (including liquors of 
80 proof or higher where liquor is packaged in individual containers of 
9.5 liters (2.5 gallons) capacity or greater).
    (b) Alternative system types and exceptions to the requirements of 
paragraph (a) of this section are:
    (1) A fixed gas fire extinguishing system, which is capable of 
automatic discharge upon heat detection, may only be installed in a 
normally unoccupied space with a gross volume of not more than 170 cubic 
meters (6,000 cubic feet);
    (2) A pre-engineered fixed gas fire extinguishing system must be in 
compliance with Sec. 181.420 of this part and may only be installed in a 
normally unoccupied machinery space, a paint locker, or a storeroom 
containing flammable liquids (including liquors of 80 proof or higher 
where liquor is packaged in individual containers of 9.5 liters (2.5 
gallons) capacity or greater), with a gross volume of not more than 57 
cubic meters (2,000 cubic feet);
    (3) A B-II portable fire extinguisher installed outside the space 
may be substituted for a fixed gas fire extinguishing system in a 
storeroom containing flammable liquids (including liquors of 80 proof or 
higher where liquor is packaged in individual containers of 9.5 liters 
(2.5 gallons) capacity or greater) or a paint locker, with a volume of 
not more that 5.7 cubic meters (200 cubic feet);
    (4) A space which is so open to the atmosphere that a fixed gas fire 
extinguishing system would be ineffective, as determined by the 
cognizant OCMI, is not required to have a fixed gas fire extinguishing 
system; and
    (5) Where the amount of carbon dioxide gas required in a fixed fire 
extinguishing system can be supplied by one portable extinguisher or a 
semiportable extinguisher, such an extinguisher may be used subject to 
the following:
    (i) The cylinder shall be installed in a fixed position outside the 
space protected;
    (ii) The applicator shall be installed in a fixed position so as to 
discharge into the space protected; and
    (iii) Controls shall be installed in an accessible location outside 
the space protected.
    (c) The following spaces must be equipped with a fire detecting 
system of an approved type that is installed in accordance with 
Sec. 76.27 in subchapter H of this chapter, except when a fixed gas fire 
extinguishing system that is capable of automatic discharge upon heat 
detection is installed or when the space is manned:
    (1) A space containing propulsion machinery;
    (2) A space containing an internal combustion engine of more than 50 
hp;
    (3) A space containing an oil fired boiler;
    (4) A space containing machinery powered by gasoline or any other 
fuels having a flash point of 43.3 deg. C (110 deg. F) or lower; and
    (5) A space containing a fuel tank for gasoline or any other fuel 
having a flash point of 43.3 deg. C (110 deg. F) or lower.
    (d) All griddles, broilers, and deep fat fryers must be fitted with 
a grease extraction hood in compliance with Sec. 181.425.
    (e) Each overnight accommodation space on a vessel with overnight 
accommodations for passengers must be fitted with an independent modular 
smoke detecting and alarm unit in compliance with Sec. 181.450.
    (f) An enclosed vehicle space must be fitted with an automatic 
sprinkler system that meets the requirements of Sec. 76.25 in subchapter 
H of this chapter; and

[[Page 263]]

    (1) A fire detecting system of an approved type that is installed in 
accordance with Sec. 76.27 in subchapter H of this chapter; or
    (2) A smoke detecting system of an approved type that is installed 
in accordance with Sec. 76.33 in subchapter H of this chapter.
    (g) A partially enclosed vehicle space must be fitted with a manual 
sprinkler system that meets the requirements of Sec. 76.23 in subchapter 
H of this chapter.

[CGD 85-080, 61 FR 982, Jan. 10, 1996, as amended at 62 FR 51358, Sept. 
30, 1997; USCG-1999-6216, 64 FR 53228, Oct. 1, 1999]



Sec. 181.410  Fixed gas fire extinguishing systems.

    (a) General. (1) A fixed gas fire extinguishing system aboard a 
vessel must be approved by the Commandant, and be custom engineered to 
meet the requirements of this section unless the system meets the 
requirements of Sec. 181.420.
    (2) System components must be listed and labeled by an independent 
laboratory. A component from a different system, even if from the same 
manufacturer, must not be used unless included in the approval of the 
installed system.
    (3) System design and installation must be in accordance with the 
Marine Design, Installation, Operation, and Maintenance Manual approved 
for the system by the Commandant.
    (4) A fixed gas fire extinguishing system may protect more than one 
space. The quantity of extinguishing agent must be at least sufficient 
for the space requiring the greatest quantity as determined by the 
requirements of paragraphs (f)(4) and (g)(2) of this section.
    (b) Controls. (1) Controls and valves for operation of fixed gas 
fire extinguishing system must be:
    (i) Located outside the space protected by the system; and
    (ii) Not located in a space that might be inaccessible in the event 
of fire in the space protected by the system.
    (2) Except for a normally unoccupied space of less than 170 cubic 
meters (6000 cubic feet), release of an extinguishing agent into a space 
must require two distinct operations.
    (3) A system must have local manual controls at the storage 
cylinders capable of releasing the extinguishing agent. In addition, a 
normally manned space must have remote controls for releasing the 
extinguishing agent at the primary exit from the space.
    (4) Remote controls must be located in a breakglass enclosure to 
preclude accidental discharge.
    (5) Valves and controls must be of an approved type and protected 
from damage or accidental activation. A pull cable used to activate the 
system controls must be enclosed in conduit.
    (6) A system protecting more than one space must have a manifold 
with a normally closed stop valve for each space protected.
    (7) A gas actuated valve or device must be capable of manual 
override at the valve or device.
    (8) A system, that has more than one storage cylinder for the 
extinguishing agent and that relies on pilot cylinders to activate the 
primary storage cylinders, must have at least two pilot cylinders. Local 
manual controls, in compliance with paragraph (b)(3) of this section, 
must be provided to operate the pilot cylinders but are not required for 
the primary storage cylinders.
    (9) A system protecting a manned space must be fitted with an 
approved time delay and alarm arranged to require the alarm to sound for 
at least 20 seconds or the time necessary to escape from the space, 
whichever is greater, before the agent is released into the space. 
Alarms must be conspicuously and centrally located. The alarm must be 
powered by the extinguishing agent.
    (10) A device must be provided to automatically shut down power 
ventilation serving the protected space and engines that draw intake air 
from the protected space prior to release of the extinguishing agent 
into the space.
    (11) Controls and storage cylinders must not be in a locked space 
unless the key is in a breakglass type box conspicuously located 
adjacent to the space.
    (c) Storage space. (1) Except as provided in paragraph (c)(2) of 
this section, a storage cylinder for a fixed gas extinguishing system 
must be:
    (i) Located outside the space protected by the system; and

[[Page 264]]

    (ii) Not located in a space that might be inaccessible in the event 
of a fire in the space protected by the system.
    (2) A normally unoccupied space of less than 170 cubic meters (6,000 
cubic feet) may have the storage cylinders located within the space 
protected. When the storage cylinders are located in the space:
    (i) The system must be capable of automatic operation by a heat 
actuator within the space; and
    (ii) Have manual controls in compliance with paragraph (b) of this 
section except for paragraph (b)(3).
    (3) A space containing a storage cylinder must be maintained at a 
temperature within the range from -30 deg. C (-20 deg. F) to 55 deg. C 
(130 deg. F) or at another temperature as listed by the independent 
laboratory and stated in the manufacturer's approved manual.
    (4) A storage cylinder must be securely fastened, supported, and 
protected against damage.
    (5) A storage cylinder must be accessible and capable of easy 
removal for recharging and inspection. Provisions must be available for 
weighing each storage cylinder in place.
    (6) Where subject to moisture, a storage cylinder must be installed 
to provide a space of at least 51 millimeters (2 inches) between the 
deck and the bottom of the storage cylinder.
    (7) A Halon 1301 storage cylinder must be stowed in an upright 
position unless otherwise listed by the independent laboratory. A carbon 
dioxide cylinder may be inclined not more than 30 deg. from the 
vertical, unless fitted with flexible or bent siphon tubes, in which 
case they may be inclined not more than 80 deg. from the vertical.
    (8) Where a check valve is not fitted on an independent storage 
cylinder discharge, a plug or cap must be provided for closing the 
outlet resulting from storage cylinder removal.
    (9) Each storage cylinder must meet the requirements of Sec. 147.60 
in subchapter N of this chapter, or other standard specified by the 
Commandant.
    (10) A storage cylinder space must have doors that open outwards or 
be fitted with kickout panels installed in each door.
    (d) Piping. (1) A pipe, valve, or fitting of ferrous material must 
be protected inside and outside against corrosion unless otherwise 
approved by the Commandant. Aluminum or other low melting material must 
not be used for a component of a fixed gas fire extinguishing system 
except as specifically approved by the Commandant.
    (2) A distribution line must extend at least 51 millimeters (2 
inches) beyond the last orifice and be closed with a cap or plug.
    (3) Piping, valves, and fittings must be securely supported, and 
where necessary, protected against damage.
    (4) Drains and dirt traps must be fitted where necessary to prevent 
the accumulation of dirt or moisture and located in accessible 
locations.
    (5) Piping must be used for no other purpose except that it may be 
incorporated with the fire detecting system.
    (6) Piping passing through accommodation spaces must not be fitted 
with drains or other openings within such spaces.
    (7) Installation test requirements for carbon dioxide systems. The 
distribution piping of a carbon dioxide fixed gas extinguishing system 
must be tested as required by this paragraph, upon completion of the 
piping installation, using only carbon dioxide, compressed air, or 
nitrogen gas.
    (i) Piping between a storage cylinder and a stop valve in the 
manifold must be subjected to a pressure of 6,894 kPa (1,000 psi), 
except as permitted in paragraph (d)(7)(iii) of this section. Without 
additional gas being introduced to the system, the pressure drop must 
not exceed 2,068 kPa (300 psi) after two minutes.
    (ii) A distribution line to a space protected by the system must be 
subjected to a test similar to that described in paragraph (d)(7)(i) of 
this section except the pressure used must be 4,136 kPa (600 psi). For 
the purpose of this test, the distribution piping must be capped within 
the space protected at the first joint between the nozzles and the 
storage cylinders.
    (iii) A small independent system protecting a space such as a paint 
locker may be tested by blowing out the piping with air at a pressure of 
not less than 689 kPa (100 psi) instead of the tests prescribed in the 
paragraphs (d)(7)(i) and (d)(7)(ii) of this section.

[[Page 265]]

    (8) Installation test requirements for Halon 1301 systems. The 
distribution piping of a Halon 1301 fixed gas extinguishing system must 
be tested, as required by this paragraph, upon completion of the piping 
installation, using only carbon dioxide, compressed air, or nitrogen.
    (i) When pressurizing the piping, pressure must be increased in 
small increments. Each joint must be subjected to a soap bubble leak 
test, and all joints must be leak free.
    (ii) Piping between the storage cylinders and the manifold stop 
valve must be subjected to a leak test conducted at a pressure of 4,136 
kPa (600 psi). Without additional gas being added to the system, there 
must be no loss of pressure over a two minute period after thermal 
equilibrium is reached.
    (iii) Distribution piping between the manifold stop valve and the 
first nozzle in the system must be capped and pneumatically tested for a 
period of 10 minutes at 1,034 kPa (150 psi). At the end of 10 minutes, 
the pressure drop must not exceed 10% of the test pressure.
    (e) Pressure relief. When required by the cognizant OCMI, spaces 
that are protected by a fixed gas fire extinguishing system and that are 
relatively air tight, such as refrigeration spaces, paint lockers, etc., 
must be provided with suitable means for relieving excessive pressure 
within the space when the agent is released.
    (f) Specific requirements for carbon dioxide systems. A custom 
engineered fixed gas fire extinguishing system, which uses carbon 
dioxide as the extinguishing agent, must meet the requirements of this 
paragraph.
    (1) Piping, valves, and fittings must have a bursting pressure of 
not less than 41,360 kPa (6,000 psi). Piping, in nominal sizes of not 
more than 19 millimeters (0.75 inches), must be at least Schedule 40 
(standard weight), and in nominal sizes of over 19 millimeters (0.75 
inches), must be at least Schedule 80 (extra heavy).
    (2) A pressure relief valve or equivalent set to relieve at between 
16,550 and 19,300 kPa (2,400 and 2,800 psi) must be installed in the 
distribution manifold to protect the piping from over-pressurization.
    (3) Nozzles must be approved by the Commandant.
    (4) When installed in a machinery space, paint locker, a space 
containing flammable liquid stores, or a space with a fuel tank, a fixed 
carbon dioxide system must meet the following requirements.
    (i) The quantity of carbon dioxide in kilograms (pounds) that the 
system must be capable of providing to a space must not be less than the 
gross volume of the space divided by the appropriate factor given in 
Table 181.410(f)(4)(i). If fuel can drain from a space being protected 
to an adjacent space or if the spaces are not entirely separate, the 
volume of both spaces must be used to determine the quantity of carbon 
dioxide to be provided. The carbon dioxide must be arranged to discharge 
into both such spaces simultaneously.

                         Table 181.410(f)(4)(i)
------------------------------------------------------------------------
                         Gross volume of space in cubic meters (feet)
       Factor        ---------------------------------------------------
                                Over                    Not Over
------------------------------------------------------------------------
      0.94 (15)       ........................          14 (500)
       1.0 (16)               14 (500)                  45 (1,600)
       1.1 (18)               45 (1,600)               125 (4,500)
       1.2 (20)              125 (4,500)              1400 (50,000)
       1.4 (22)             1400 (50,000)       ........................
------------------------------------------------------------------------

    (ii) The minimum size of a branch line to a space must be as noted 
in Table 181.410(f)(4)(ii).

                         Table 181.410(f)(4)(ii)
------------------------------------------------------------------------
  Maximum quantity of carbon dioxide     Minimum nominal pipe size  mm
          required  kg (lbs)                        (inches)
------------------------------------------------------------------------
             45.4 (100)                           12.7 (0.5)
              102 (225)                             19 (0.75)
              136 (300)                             25 (1.0)
              272 (600)                             30 (1.25)
              454 (1000)                            40 (1.5)
             1111 (2450)                            50 (2.0)
             1134 (2,500)                           65 (2.5)
             2018 (4,450)                           75 (3.0)
             3220 (7,100)                           90 (3.5)
             4739 (10,450)                         100 (4.0)
             6802 (15,000)                         113 (4.5)
------------------------------------------------------------------------

    (iii) Distribution piping within a space must be proportioned from 
the distribution line to give proper supply to the outlets without 
throttling.

[[Page 266]]

    (iv) The number, type, and location of discharge outlets must 
provide uniform distribution of carbon dioxide throughout a space.
    (v) The total area of all discharge outlets must not exceed 85 
percent nor be less than 35 percent of the nominal cylinder outlet area 
or the area of the supply pipe, whichever is smaller. The nominal 
cylinder outlet area in square millimeters (inches) is determined by 
multiplying the factor 0.015 (0.0022 if using square inches) by the 
total capacity in kilograms (pounds) of all carbon dioxide cylinders in 
the system, except in no case must the outlet area be of less than 71 
square millimeters (0.110 square inches if using pounds).
    (vi) The discharge of at least 85 percent of the required amount of 
carbon dioxide must be completed within two minutes.
    (5) When installed in an enclosed ventilation system for rotating 
electrical propulsion equipment a fixed carbon dioxide extinguishing 
system must meet the following requirements.
    (i) The quantity of carbon dioxide in kilograms (pounds) must be 
sufficient for initial and delayed discharges as required by this 
paragraph. The initial discharge must be equal to the gross volume of 
the system divided by 160 (10 if using pounds) for ventilation systems 
having a volume of less than 57 cubic meters (2,000 cubic feet), or 
divided by 192 (12 if using pounds) for ventilation systems having a 
volume of at least 57 cubic meters (2,000 cubic feet). In addition, 
there must be sufficient carbon dioxide available to permit delayed 
discharges to maintain at least a 25 percent concentration until the 
equipment can be stopped. If the initial discharge achieves this 
concentration, a delayed discharge is not required.
    (ii) The piping sizes for the initial discharge must be in 
accordance with Table 181.410(f)(4)(ii) and the discharge of the 
required amount must be completed within two minutes.
    (iii) Piping for the delayed discharge must not be less than 12.7 
millimeters (0.5 inches) nominal pipe size, and need not meet specific 
requirement for discharge rate.
    (iv) Piping for the delayed discharge may be incorporated with the 
initial discharge piping.
    (6) When installed in a cargo space a fixed carbon dioxide 
extinguishing system must meet the following requirements.
    (i) The number of kilograms (pounds) of carbon dioxide required for 
each space in cubic meters (feet) must be equal to the gross volume of 
the space in cubic meters (feet) divided by 480 (30 if using pounds).
    (ii) System piping must be of at least 19 millimeters (0.75 inches).
    (iii) No specific discharge rate is required.
    (g) Specific requirements for Halon 1301 systems. (1) A custom 
engineering fixed gas fire extinguishing system, which uses Halon 1301, 
must comply with the applicable sections of UL Standard 1058 
``Halogenated Agent Extinguishing System Units,'' and the requirements 
of this paragraph.
    (2) The Halon 1301 quantity and discharge requirements of UL 1058 
apply, with the exception that the Halon 1301 design concentration must 
be 6 percent at the lowest ambient temperature expected in the space. If 
the lowest temperature is not known, a temperature of -18 deg. C (0 deg. 
F) must be assumed.
    (3) Each storage cylinder in a system must have the same pressure 
and volume.
    (4) Computer programs used in designing systems must have been 
approved by an independent laboratory.

    Note to Sec. 181.410(g):
    As of Jan. 1, 1994, the United States banned the production of 
Halon. The Environmental Protection Agency placed significant 
restrictions on the servicing and maintenance of systems containing 
Halon. Vessels operating on an international voyage, subject to SOLAS 
requirements, are prohibited from installing fixed gas fire 
extinguishing systems containing Halon.

[CGD 85-080, 61 FR 982, Jan. 10, 1996; 61 FR 20557, May 7, 1996, as 
amended at 62 FR 51358, Sept. 30, 1997; USCG-2000-7790, 65 FR 58465, 
Sept. 29, 2000]



Sec. 181.420  Pre-engineered fixed gas fire extinguishing systems.

    (a) A pre-engineered fixed gas fire extinguishing system must:
    (1) Be approved by the Commandant;

[[Page 267]]

    (2) Be capable of manual actuation from outside the space in 
addition to automatic actuation by a heat detector;
    (3) Automatically shut down all power ventilation systems and all 
engines that draw intake air from within the protected space; and
    (4) Be installed in accordance with the manufacturer's instructions.
    (b) A vessel on which a pre-engineered fixed gas fire extinguishing 
system is installed must have the following equipment at the operating 
station:
    (1) A light to indicate discharge;
    (2) An audible alarm that sounds upon discharge; and
    (3) A means to reset devices used to automatically shut down 
ventilation systems and engines as required by paragraph (a)(3) of this 
section.
    (c) Only one pre-engineered fixed gas fire extinguishing system is 
allowed to be installed in each space protected by such a system.



Sec. 181.425  Galley hood fire extinguishing systems.

    (a) A grease extraction hood required by Sec. 181.400 must meet UL 
710 ``Exhaust Hoods for Commercial Cooking Equipment,'' or other 
standard specified by the Commandant.
    (b) A grease extraction hood must be equipped with a dry or wet 
chemical fire extinguishing system meeting the applicable sections of 
NFPA 17 ``Dry Chemical Extinguishing Systems,'' 17A ``Wet Chemical 
Extinguishing Systems,'' or other standard specified by the Commandant, 
and must be listed by an independent laboratory recognized by the 
Commandant.



Sec. 181.450  Independent modular smoke detecting units.

    (a) An independent modular smoke detecting unit must:
    (1) Meet UL Standard 217 and be listed as a ``Single Station Smoke 
detector--Also suitable for use in Recreational Vehicles,'' or other 
standard specified by the Commandant;
    (2) Contain an independent power source; and
    (3) Alarm on low power.
    (b) [Reserved]



                 Subpart E--Portable Fire Extinguishers



Sec. 181.500  Required number, type, and location.

    (a) Each portable fire extinguisher on a vessel must be of an 
approved type. The minimum number of portable fire extinguishers 
required on a vessel must be acceptable to the cognizant OCMI, but must 
be not less than the minimum number required by Table 181.500(a) and 
other provisions of this section.

                                                Table 181.500(a)
----------------------------------------------------------------------------------------------------------------
                                                                  Type extinguisher permitted
       Space protected          Minimum No.   ------------------------------------------------------------------
                                  required         CG class               Medium                  Min size
----------------------------------------------------------------------------------------------------------------
Operating Station...........  1..............  B-I, C-I.......  Halon....................  1.1 kg (2.5 lb).
                                                                CO2......................  1.8kg (4 lb).
                                                                Dry Chemical.............  0.9 kg (2 lb).
Machinery Space.............  1..............  B-II, C-II       CO2......................  6.8 kg (15 lb).
                                                located just
                                                outside exit.
                                                                Dry chemical.............  4.5 kg (10 lb).
Open Vehicle Deck...........  1 for every 10   B-II...........  Foam.....................  9.5 L (2.5 gal).
                               vehicles.
                                                                Halon....................  4.5 kg (10 lb).
                                                                CO2......................  6.8 kg (15 lb).
                                                                Dry Chemical.............  4.5 kg (10 lb).
Accomodation Space..........  1 for each       A-II...........  Foam.....................  9.5 L (2.5 gal).
                               232.3 square                     Dry Chemical.............  4.5 kg (10 lb).
                               meters (2,500
                               square feet)
                               or fraction
                               thereof.
Galley, Pantry, Concession    1..............  A-II, B-II.....  Foam.....................  9.5 L (2.5 gal).
 Stand.
                                                                Dry Chemical.............  4.5 kg (10 lb).
----------------------------------------------------------------------------------------------------------------


[[Page 268]]

    (b) A vehicle deck without a fixed sprinkler system and exposed to 
weather must have one B-II portable fire extinguisher for every five 
vehicles, located near an entrance to the space.
    (c) The cognizant OCMI may permit the use of a larger portable fire 
extinguisher, or a semiportable fire extinguisher, in lieu of those 
required by this section.
    (d) The frame or support of each B-V fire extinguisher permitted by 
paragraph (c) of this section must be welded or otherwise permanently 
attached to a bulkhead or deck.

[CGD 85-080, 61 FR 982, Jan. 10, 1996; 61 FR 24464, May 15, 1996, as 
amended at 62 FR 51358, Sept. 30, 1997]



Sec. 181.520  Installation and location.

    Portable fire extinguishers must be located so that they are clearly 
visible and readily accessible from the space being protected. The 
installation and location must be to the satisfaction of the Officer in 
Charge, Marine Inspection.



                     Subpart F--Additional Equipment



Sec. 181.600  Fire axe.

    A vessel of more than 19.8 meters (65 feet) in length must have at 
least one fire axe located in or adjacent to the primary operating 
station.



Sec. 181.610  Fire bucket.

    A vessel not required to have a power driven fire pump by 
Sec. 181.300 must have at least three 9.5 liter (2\1/2\ gallon) buckets, 
with an attached lanyard satisfactory to the cognizant OCMI, placed so 
as to be easily available during an emergency. The words ``FIRE BUCKET'' 
must be stenciled in a contrasting color on each bucket.

[CGD 85-080, 61 FR 982, Jan. 10, 1996, as amended at 62 FR 51358, Sept. 
30, 1997]



PART 182--MACHINERY INSTALLATION--Table of Contents




                      Subpart A--General Provisions

Sec.
182.100  Intent.
182.115  Applicability to existing vessels.
182.130  Alternative standards.

                     Subpart B--Propulsion Machinery

182.200  General.
182.220  Installations.

                     Subpart C--Auxiliary Machinery

182.310  Installations.
182.320  Water heaters.
182.330  Pressure vessels.

               Subpart D--Specific Machinery Requirements

182.400  Applicability.
182.405  Fuel restrictions.
182.410  General requirements.
182.415  Carburetors.
182.420  Engine cooling.
182.422  Integral and non-integral keel cooler installations.
182.425  Engine exhaust cooling.
182.430  Engine exhaust pipe installation.
182.435  Integral fuel tanks.
182.440  Independent fuel tanks.
182.445  Fill and sounding pipes for fuel tanks.
182.450  Vent pipes for fuel tanks.
182.455  Fuel piping.
182.458  Portable fuel systems.
182.460  Ventilation of spaces containing machinery powered by, or fuel 
          tanks for, gasoline.
182.465  Ventilation of spaces containing diesel machinery.
182.470  Ventilation of spaces containing diesel fuel tanks.
182.480  Flammable vapor detection systems.

                  Subpart E--Bilge and Ballast Systems

182.500  General.
182.510  Bilge piping system.
182.520  Bilge pumps.
182.530  Bilge high level alarms.
182.540  Ballast systems.

                       Subpart F--Steering Systems

182.600  General.
182.610  Main steering gear.
182.620  Auxiliary means of steering.

                        Subpart G--Piping Systems

182.700  General.
182.710  Piping for vital systems.
182.715  Piping subject to more than 1,034 kPa (150 psig) in non-vital 
          systems.
182.720  Nonmetallic piping materials.
182.730  Nonferrous metallic piping materials.

    Authority: 46 U.S.C. 3306; E.O. 12234, 45 FR 58801, 3 CFR, 1980 
Comp., p. 277; 49 CFR 1.46.

    Source: CGD 85-080, 61 FR 986, Jan. 10, 1996, unless otherwise 
noted.

[[Page 269]]



                      Subpart A--General Provisions



Sec. 182.100  Intent.

    This part contains requirements for the design, construction, 
installation, and operation of propulsion and auxiliary machinery, 
piping and pressure systems, steering apparatus, and associated safety 
systems. Machinery and equipment installed on each vessel must be 
suitable for the vessel and its operation and for the purpose intended. 
All machinery and equipment must be installed and maintained in such a 
manner as to afford adequate protection from causing fire, explosion, 
machinery failure, and personnel injury.



Sec. 182.115  Applicability to existing vessels.

    (a) Except as otherwise required by paragraphs (b), (c) and (d) of 
this section, an existing vessel must comply with the regulations on 
machinery, bilge and ballast system equipment, steering apparatus, and 
piping systems or components that were applicable to the vessel on March 
10, 1996 or, as an alternative, the vessel may comply with the 
regulations in this part.
    (b) New installations of machinery, bilge and ballast system 
equipment, steering equipment, and piping systems or components on an 
existing vessel, which are completed to the satisfaction of the 
cognizant Officer in Charge, Marine Inspection (OCMI) on or after March 
11, 1996, must comply with the regulations of this part. Replacement of 
existing equipment installed on the vessel prior to March 11, 1996, need 
not comply with the regulations in this part.
    (c) An existing vessel equipped with machinery powered by gasoline 
or other fuels having a flash point of 43.3 deg. C (110 deg. F) or lower 
must comply with the requirements of Sec. 182.410(c) on or before March 
11, 1999.
    (d) On or before March 11, 1999, an existing vessel must comply with 
the bilge high level alarm requirements in Sec. 182.530.



Sec. 182.130  Alternative standards.

    A vessel of not more than 19.8 meters (65 feet) in length carrying 
not more than 12 passengers propelled by gasoline or diesel internal 
combustion engines, other than a High Speed Craft, may comply with the 
following American Boat and Yacht Council (ABYC) Projects or 33 CFR 
subchapter S (Boating Safety), where indicated in this part, in lieu of 
complying with those requirements:
    (a) H-2--``Ventilation of Boats Using Gasoline'', or 33 CFR 183, 
subpart K, ``Ventilation'';
    (b) H-22--``DC Electric Bilge Pumps Operating Under 50 Volts'';
    (c) H-24--``Gasoline Fuel Systems'', or 33 CFR 183, subpart J--
``Fuel System'';
    (d) H-25--``Portable Gasoline Fuel Systems for Flammable Liquids'';
    (e) H-32--``Ventilation of Boats Using Diesel Fuel'';
    (f) H-33--``Diesel Fuel Systems'';
    (g) P-1--``Installation of Exhaust Systems for Propulsion and 
Auxiliary Engines''; and
    (h) P-4--``Marine Inboard Engines''.



                     Subpart B--Propulsion Machinery



Sec. 182.200  General.

    (a) Propulsion machinery must be suitable in type and design for 
propulsion requirements of the hull in which it is installed and capable 
of operating at constant marine load under such requirements without 
exceeding its designed limitations.
    (b) All engines must have at least two means for stopping the 
engine(s) under any operating conditions. The fuel oil shutoff required 
at the engine by Sec. 182.455(b)(4) will satisfy one means of stopping 
the engine.



Sec. 182.220  Installations.

    (a) Except as otherwise provided in this section, propulsion 
machinery installations must comply with the provisions of this part.
    (b) The requirements for machinery and boilers for steam and 
electrically propelled vessels are contained in applicable regulations 
in subchapter F (Marine Engineering) and subchapter J (Electrical 
Engineering) of this chapter.
    (c) Propulsion machinery of an unusual type for small passenger 
vessels must be given separate consideration and is subject to such 
requirements as determined necessary by the cognizant

[[Page 270]]

OCMI. These unusual types of propulsion machinery include:
    (1) Gas turbine machinery installations;
    (2) Air screws;
    (3) Hydraulic jets; and
    (4) Machinery installations using lift devices.



                     Subpart C--Auxiliary Machinery



Sec. 182.310  Installations.

    (a) Auxiliary machinery of the internal combustion piston type must 
comply with the provisions of this part.
    (b) Auxiliary machinery of the steam or gas turbine type will be 
given separate consideration and must meet the applicable requirements 
of subchapter F (Marine Engineering) of this chapter as determined 
necessary by the cognizant OCMI.
    (c) Auxiliary boilers and heating boilers and their associated 
piping and fittings will be given separate consideration and must meet 
the applicable requirements of subchapter F (Marine Engineering) of this 
chapter as determined necessary by the cognizant OCMI, except that 
heating boilers must be tested or examined every three years.



Sec. 182.320  Water heaters.

    (a) A water heater must meet the requirements of parts 53 and 63 of 
this chapter if rated at not more than 689 kPa (100 psig) and 121 deg. C 
(250 deg. F), except that an electric water heater is also acceptable if 
it:
    (1) Has a capacity of not more than 454 liters (120 gallons);
    (2) Has a heat input of not more than 58.6 kilowatts (200,000 Btu 
per hour);
    (3) Is listed by Underwriters Laboratories (UL) under UL 174, 
``Household Electric Storage Tank Water Heaters,'' UL 1453, ``Electric 
Booster and Commercial Storage Tank Water Heaters,'' or other standard 
specified by the Commandant; and
    (4) Is protected by a pressure-temperature relief device.
    (b) A water heater must meet the requirements of parts 52 and 63 of 
this chapter if rated at more than 689 kPa (100 psig) or 121 deg. C 
(250 deg. F).
    (c) A water heater must be installed and secured from rolling by 
straps or other devices to the satisfaction of the cognizant OCMI.

[CGD 85-080, 61 FR 986, Jan. 10, 1996; 61 FR 20557, May 7, 1996, as 
amended at 62 FR 51358, Sept. 30, 1997]



Sec. 182.330  Pressure vessels.

    All unfired pressure vessels must be installed to the satisfaction 
of the cognizant OCMI. The design, construction, and original testing of 
such unfired pressure vessels must meet the applicable requirements of 
subchapter F (Marine Engineering) of this chapter.



               Subpart D--Specific Machinery Requirements



Sec. 182.400  Applicability.

    (a) This subpart applies to all propulsion and auxiliary machinery 
installations of the internal combustion piston type.
    (b) Requirements of this subpart that are only applicable to engines 
that use gasoline or other fuels having a flashpoint of 43.3 deg. C 
(110 deg. F) or lower are specifically designated in each section.
    (c) Requirements of this subpart that are only applicable to engines 
that use diesel fuel or other fuels having a flashpoint of more than 
43.3 deg. C (110 deg. F) are specifically designated in each section.
    (d) Where no specific gasoline, diesel, or other fuel designation 
exists, the requirements of this subpart are applicable to all types of 
fuels and machinery.



Sec. 182.405  Fuel restrictions.

    The use of alternative fuels, other than diesel fuel or gasoline, as 
fuel for an internal combustion engine will be reviewed on a case-by-
case basis by the Commandant.

[CGD 85-080, 61 FR 986, Jan. 10, 1996, as amended by CGD 97-057, 62 FR 
51050, Sept. 30, 1997]



Sec. 182.410  General requirements.

    (a) Starting motors, generators, and any spark producing device must 
be mounted as high above the bilges as practicable. Electrical equipment 
in spaces, compartments, or enclosures that contain machinery powered 
by, or fuel tanks for, gasoline or other fuels

[[Page 271]]

having a flashpoint of 43.3 deg. C (110 deg. F) or lower must be 
explosion-proof, intrinsically safe, or ignition protected for use in a 
gasoline atmosphere as required by Sec. 183.530 of this chapter.
    (b) Gauges to indicate engine revolutions per minute (RPM), jacket 
water discharge temperature, and lubricating oil pressure must be 
provided for all propulsion engines installed in the vessel. The gauges 
must be readily visible at the operating station.
    (c) An enclosed space containing machinery powered by gasoline or 
other fuels having a flash point of 43.3 deg. C (110 deg. F) or lower 
must be equipped with a flammable vapor detection device in compliance 
with Sec. 182.480.
    (d) In systems and applications where flexible hoses are permitted 
to be clamped:
    (1) Double hose clamping is required where practicable;
    (2) The clamps must be of a corrosion resistant metallic material;
    (3) The clamps must not depend on spring tension for their holding 
power; and
    (4) Two clamps must be used on each end of the hose, or one hose 
clamp can be used if the pipe ends are expanded or beaded to provide a 
positive stop against hose slippage.



Sec. 182.415  Carburetors.

    (a) All carburetors except the downdraft type must be equipped with 
integral or externally fitted drip collectors of adequate capacity and 
arranged so as to permit ready removal of fuel leakage. Externally 
fitted drip collectors, must be covered with flame screens. Drip 
collectors, where practicable, should automatically drain back to engine 
air intakes.
    (b) All gasoline engines installed in a vessel, except outboard 
engines, must be equipped with an acceptable means of backfire flame 
control. Installation of backfire flame arresters bearing basic Approval 
Numbers 162.015 or 162.041 or engine air and fuel induction systems 
bearing basic Approval Numbers 162.042 or 162.043 may be continued in 
use as long as they are serviceable and in good condition. New 
installations or replacements must meet the applicable requirements of 
this section.
    (c) The following are acceptable means of backfire flame control for 
gasoline engines:
    (1) A backfire flame arrester complying with Society of Automotive 
Engineers (SAE) J-1928, ``Devices Providing Backfire Flame Control for 
Gasoline Engines in Marine Applications,'' or UL 1111, ``Marine 
Carburetor Flame Arrestors,'' and marked accordingly. The flame arrester 
must be suitably secured to the air intake with a flametight connection.
    (2) An engine air and fuel induction system that provides adequate 
protection from propagation of backfire flame to the atmosphere 
equivalent to that provided by an acceptable backfire flame arrester. A 
gasoline engine utilizing an air and fuel induction system, and operated 
without an approved backfire flame arrester, must either include a reed 
valve assembly or be installed in accordance with SAE J-1928, or other 
standard specified by the Commandant.
    (3) An arrangement of the carburetor or engine air induction system 
that will disperse any flames caused by engine backfire. The flames must 
be dispersed to the atmosphere outside the vessel in such a manner that 
the flames will not endanger the vessel, persons on board, or nearby 
vessels and structures. Flame dispersion may be achieved by attachments 
to the carburetor or location of the engine air induction system. All 
attachments must be of metallic construction with flametight connections 
and firmly secured to withstand vibration, shock, and engine backfire. 
Such installations do not require formal approval and labeling but must 
comply with this subpart.
    (4) An engine air induction system on a vessel with an integrated 
engine-vessel design must be approved, marked, and tested under 
Sec. 162.043 in subchapter Q of this chapter, or other standard 
specified by the Commandant.



Sec. 182.420  Engine cooling.

    (a) Except as otherwise provided in paragraphs (b), (c), (d), and 
(e) of this section, all engines must be water cooled and meet the 
requirements of this paragraph.

[[Page 272]]

    (1) The engine head, block, and exhaust manifold must be water-
jacketed and cooled by water from a pump that operates whenever the 
engine is operating.
    (2) A suitable hull strainer must be installed in the circulating 
raw water intake line of an engine cooling water system.
    (3) A closed fresh water system may be used to cool the engine.
    (b) An engine water cooling system on a vessel of not more than 19.8 
meters (65 feet) in length carrying not more than 12 passengers, may 
comply with the requirements of ABYC Project P-4, ``Marine Inboard 
Engines,'' instead of the requirements of paragraph (a) of this section.
    (c) On a vessel of not more than 19.8 meters (65 feet) in length 
carrying not more than 12 passengers, a propulsion gasoline engine may 
be air cooled when in compliance with the requirements of ABYC Project 
P-4.
    (d) An auxiliary gasoline engine may be air cooled when:
    (1) It has a self-contained fuel system and it is installed on an 
open deck; or
    (2) On a vessel of not more than 19.8 meters (65 feet) in length 
carrying not more than 12 passengers, it is in compliance with the 
requirements of ABYC P-4.
    (e) A propulsion or auxiliary diesel engine may be air cooled or 
employ an air cooled jacket water radiator when:
    (1) Installed on an open deck and sufficient ventilation for 
machinery cooling is available;
    (2) Installed in an enclosed or partially enclosed space for which 
ventilation for machinery cooling is provided, which complies with the 
requirement of Sec. 182.465(b), and other necessary safeguards are taken 
so as not to endanger the vessel; or
    (3) Installed on a vessel of not more than 19.8 meters (65 feet) in 
length carrying not more than 12 passengers, in compliance with the 
requirements of ABYC Project P-4.



Sec. 182.422  Integral and non-integral keel cooler installations.

    (a) A keel cooler installation used for engine cooling must be 
designed to prevent flooding.
    (b) Except as provided in paragraph (e), a shutoff valve must be 
located where the cooler piping penetrates the shell, as near the shell 
as practicable, except where the penetration is forward of the collision 
bulkhead.
    (c) The thickness of the inlet and discharge connections, outboard 
of the shutoff valves required by paragraph (b) of this section, must be 
at least Schedule 80.
    (d) Short lengths of approved nonmetallic flexible hose, fixed by 
two hose clamps at each end of the hose, may be used at machinery 
connections for a keel cooler installation.
    (e) Shutoff valves are not required for integral keel coolers. A 
keel cooler is considered integral to the hull if the following 
conditions are satisfied:
    (1) The cooler structure is fabricated from material of the same 
thickness and quality as the hull;
    (2) The flexible connections are located well above the deepest 
subdivision draft;
    (3) The end of the structure is faired to the hull with a slope no 
greater than 4 to 1; and
    (4) Full penetration welds are employed in the fabrication of the 
structure and its attachment to the hull.

[CGD 85-080, 61 FR 986, Jan. 10, 1996, as amended by USCG-2000-7790, 65 
FR 58465, Sept. 29, 2000]



Sec. 182.425  Engine exhaust cooling.

    (a) Except as otherwise provided in this paragraph, all engine 
exhaust pipes must be water cooled.
    (1) Vertical dry exhaust pipes are permissible if installed in 
compliance with Secs. 177.405(b) and 177.970 of this chapter.
    (2) Horizontal dry exhaust pipes are permitted only if:
    (i) They do not pass through living or berthing spaces;
    (ii) They terminate above the deepest load waterline;
    (iii) They are so arranged as to prevent entry of cold water from 
rough or boarding seas;
    (iv) They are constructed of corrosion resisting material at the 
hull penetration; and
    (v) They are installed in compliance with Secs. 177.405(b) and 
177.970 of this chapter.

[[Page 273]]

    (b) The exhaust pipe cooling water system must comply with the 
requirements of this paragraph.
    (1) Water for cooling the exhaust pipe must be obtained from the 
engine cooling water system or a separate engine driven pump.
    (2) Water for cooling the exhaust pipe, other than a vertical 
exhaust, must be injected into the exhaust system as near to the engine 
manifold as practicable. The water must pass through the entire length 
of the exhaust pipe.
    (3) The part of the exhaust system between the point of cooling 
water injection and the engine manifold must be water-jacketed or 
effectively insulated and protected in compliance with Secs. 177.405(b) 
and 177.970 of this chapter.
    (4) Vertical exhaust pipes must be water-jacketed or suitably 
insulated as required by Sec. 182.430(g).
    (5) When the exhaust cooling water system is separate from the 
engine cooling water system, a suitable warning device, visual or 
audible, must be installed at the operating station to indicate any 
reduction in normal water flow in the exhaust cooling system.
    (6) A suitable hull strainer must be installed in the circulating 
raw water intake line for the exhaust cooling system.
    (c) Engine exhaust cooling system built in accordance with the 
requirements of ABYC Project P-1, ``Installation of Exhaust Systems for 
Propulsion and Auxiliary Machinery,'' will be considered as meeting the 
requirements of this section.

[CGD 85-080, 61 FR 986, Jan. 10, 1996; 61 FR 20557, May 7, 1996]



Sec. 182.430  Engine exhaust pipe installation.

    (a) The design of all exhaust systems must ensure minimum risk of 
injury to personnel. Protection must be provided in compliance with 
Sec. 177.970 of this chapter at such locations where persons or 
equipment might come in contact with an exhaust pipe.
    (b) Exhaust gas must not leak from the piping or any connections. 
The piping must be properly supported by noncombustible hangers or 
blocks.
    (c) The exhaust piping must be so arranged as to prevent backflow of 
water from reaching engine exhaust ports under normal conditions.
    (d) Pipes used for wet exhaust lines must be Schedule 80 or 
corrosion-resistant material and adequately protected from mechanical 
damage.
    (e) Where flexibility is necessary, a section of flexible metallic 
hose may be used. Nonmetallic hose may be used for wet exhaust systems 
provided it is especially adapted to resist the action of oil, acid, and 
heat, has a wall thickness sufficient to prevent collapsing or panting, 
and is double clamped where practicable.
    (f) Where an exhaust pipe passes through a watertight bulkhead, the 
watertight integrity of the bulkhead must be maintained. Noncombustible 
packing must be used in bulkhead penetration glands for dry exhaust 
systems. A wet exhaust pipe may be welded to a steel or equivalent 
bulkhead in way of a penetration and a fiberglass wet exhaust pipe may 
be fiberglassed to a fiberglass reinforced plastic bulkhead if suitable 
arrangements are provided to relieve the stresses resulting from the 
expansion of the exhaust piping.
    (g) A dry exhaust pipe must:
    (1) If it passes through a combustible bulkhead or partition, be 
kept clear of, and suitably insulated or shielded from, combustible 
material.
    (2) Be provided with noncombustible hangers and blocks for support.
    (h) An exhaust pipe discharge terminating in a transom must be 
located as far outboard as practicable so that exhaust gases cannot 
reenter the vessel.
    (i) Arrangements must be made to provide access to allow complete 
inspection of the exhaust piping throughout its length.
    (j) An exhaust installation subject to pressures in excess of 105 
kPa (15 psig) gauge or having exhaust pipes passing through living or 
working spaces must meet the material requirements of part 56 of 
subchapter F (Marine Engineering) of this chapter.
    (k) Engine exhaust installations built in accordance with the 
requirements of ABYC Project P-1, will be considered as meeting the 
requirements of this section.

[CGD 85-080, 61 FR 986, Jan. 10, 1996; 61 FR 20557, May 7, 1996; 61 FR 
24464, May 15, 1996, as amended at 62 FR 51358, Sept. 30, 1997]

[[Page 274]]



Sec. 182.435  Integral fuel tanks.

    (a) Gasoline fuel tanks must be independent of the hull.
    (b) Diesel fuel tanks may not be built integral with the hull of a 
vessel unless the hull is made of:
    (1) Steel;
    (2) Aluminum; or
    (3) Fiber reinforced plastic when:
    (i) Sandwich construction is not used; or
    (ii) Sandwich construction is used with only a core material of 
closed cell polyvinyl chloride or equivalent.
    (c) During the initial inspection for certification of a vessel, 
integral fuel tanks must withstand a hydrostatic pressure test of 35 kPa 
(5 psig), or the maximum pressure head to which they may be subjected in 
service, whichever is greater. A standpipe of 3.5 meters (11.5 feet) in 
height attached to the tank may be filled with water to accomplish the 
35 kPa (5 psig) test.

[CGD 85-080, 61 FR 986, Jan. 10, 1996, as amended at 62 FR 51358, Sept. 
30, 1997]



Sec. 182.440  Independent fuel tanks.

    (a) Materials and construction. Independent fuel tanks must be 
designed and constructed of materials in compliance with the 
requirements of this paragraph.
    (1) The material used and the minimum thickness allowed must be as 
indicated in Table 182.440(a)(1), except that other materials that 
provide equivalent safety may be approved for use under paragraph (a)(3) 
of this section. Tanks having a capacity of more than 570 liters (150 
gallons) must be designed to withstand the maximum head to which they 
may be subjected in service, but in no case may the thickness be less 
than that specified in Table 182.440(a)(1).

[[Page 275]]



                                                                   Table 182.440(a)(1)
--------------------------------------------------------------------------------------------------------------------------------------------------------
                                     ASTM                     Thickness in millimeters (inches) and [gage number] 1 vs. tank capacities for:
                                 specification  --------------------------------------------------------------------------------------------------------
                               (latest edition)
           Material             [see also Sec.      4 to 300 liter (1 to 80 gal)     More than 300 liter (80 gal) and
                                175.600 of this                tanks                not more than 570 liter (150 gal)   Over 570 liter (150 gal) 2 tanks
                                   chapter]                                                       tanks
--------------------------------------------------------------------------------------------------------------------------------------------------------
Nickel-cooper................  B127, hot rolled  0.94 (0.037) [USSG 20] \3\.......  1.27 (0.050) [USSG 18]...........  2.72 (0.107) [USSG 12]
                                sheet or plate.
Copper-nickel 4..............  B122, UNS alloy   1.14 (0.045) [AWG 17]............  1.45 (0.057) [AWG 15]............  3.25 (0.128) [AWG 8]
                                C71500.
Copper 4.....................  B152, UNS alloy   1.45 (0.057) [AWG 15]............  2.06 (0.081) [AWG 12]............  4.62 (0.182) [AWG 5]
                                C11000.
Copper-silicon 4.............  B 96, alloys      1.29 (0.051) [AWG 16]............  1.63 (0.064) [AWG 14]............  3.66 (0.144) [AWG 7]
                                C65100 and
                                C65500.
Steel or iron 5,6............  * * * * *         1.90 (0.0747) [MSG 14]...........  2.66 (0.1046) [MSG 12]...........  4.55 (0.1793) [MSG 7]
Aluminum 7...................  B209, alloy       6.35 (0.250) [USSG 3]............  6.35 (0.250) [USSG 3]............  6.35 (0.250) [USSG 3]
                                5052, 5083,
                                5086.
Fiber reinforced plastic.....  * * * * *         As required 8....................  As required 8....................  As required 8
--------------------------------------------------------------------------------------------------------------------------------------------------------
\1\ The gage numbers used in this table may be found in many standard engineering reference books. The letters ``USSG'' stand for ``U.S. Standard
  Gage,'' which was established by the act of March 3, 1892 (15 U.S.C. 206), for sheet and plate iron and steel. The letters ``AWG'' stand for
  ``American Wire Gage'' (or Brown and Sharpe Gage) for nonferrous sheet thicknesses. The letters ``MSG'' stand for ``Manufacturers' Standard Gage'' for
  sheet steel thickness.
\2\ Tanks over 1514 liters (400 gallons) shall be designed with a factor of safety of four on the ultimate strength of the material used with a design
  head of not less than 1220 millimeters (4 feet) of liquid above the top of the tank.
\3\ Nickel-copper not less than 0.79 millimeter (0.031 inch) [USSG 22] may be used for tanks up to 114-liter (30-gallon) capacity.
\4\ Acceptable only for gasoline service.
\5\ Gasoline fuel tanks constructed of iron or steel, which are less than 5 millimeter (0.1875) inch) thick, shall be galvanized inside and outside by
  the hot dip process. Tanks intended for use with diesel oil shall not be internally galvanized.
\6\ Stainless steel tanks are not included in this category.
\7\ Anodic to most common metals. Avoid dissimilar metal contact with tank body.
\8\ The requirements of Sec.  182.440(a)(2) apply.


[[Page 276]]

    (2) Fiber reinforced plastic may be used for diesel fuel tanks under 
the following provisions:
    (i) The materials must be fire retardant. Flammability of the 
material must be determined by the standard test methods in America 
Society for Testing and Materials (ASTM) D635, ``Rate of Burning and/or 
Extent and Time of Burning of Self-supporting Plastics in a Horizontal 
Position,'' and ASTM D2863, ``Measuring the Minimum Oxygen Concentration 
to Support Candle-like Combustion of Plastics (Oxygen Index),'' or other 
standard specified by the Commandant. The results of these tests must 
show that the average extent of burning is less than 10 millimeters 
(0.394 inches), the average time of burning is less than 50 seconds, and 
the limiting oxygen index is greater than 21.
    (ii) Tanks must meet UL 1102, ``Non integral Marine Fuel Tanks,'' or 
other standard specified by the Commandant. Testing may be accomplished 
by an independent laboratory or by the fabricator to the satisfaction of 
the OCMI.
    (iii) Tanks must be designed to withstand the maximum heat to which 
they may be subjected to in service.
    (iv) Installation of nozzles, flanges or other fittings for pipe 
connections to the tanks must be acceptable to the cognizant OCMI.
    (v) Baffle plates, if installed, must be of the same material and 
not less than the minimum thickness of the tank walls. Limber holes at 
the bottom and air holes at the top of all baffles must be provided. 
Baffle plates must be installed at the time the tests required by UL 
Standard 1102, or other standard specified by the Commandant, are 
conducted.
    (3) Materials other than those listed in Table 182.440(a)(1) must be 
approved by the Commandant. An independent tank using material approved 
by the Commandant under this paragraph must meet the testing 
requirements of UL Standard 1102, or other standard specified by the 
Commandant. Testing may be accomplished by an independent laboratory or 
by the fabricator to the satisfaction of the OCMI.
    (4) Tanks with flanged-up top edges that may trap and hold moisture 
are prohibited.
    (5) Openings for fill pipes, vent pipes, and machinery fuel supply 
pipes, and openings for fuel level gauges, where used, must be on the 
topmost surfaces of tanks. Tanks may not have any openings in bottoms, 
sides, or ends, except for:
    (i) An opening fitted with a threaded plug or cap installed for tank 
cleaning purposes; and
    (ii) In a diesel fuel tank, openings for supply piping and tubular 
gauge glasses.
    (6) All tank joints must be welded or brazed. Lap joints may not be 
used.
    (7) Nozzles, flanges, or other fittings for pipe connections to a 
metal tank must be welded or brazed to the tank. Tank openings in way of 
pipe connections must be properly reinforced where necessary. Where fuel 
level gauges are used on a metal tank, the flanges to which gauge 
fittings are attached must be welded or brazed to the tank. No tubular 
gauge glasses may be fitted to gasoline fuel tanks. Tubular gauge 
glasses, if fitted to diesel fuel tanks, must be of heat resistant 
materials, adequately protected from mechanical damage, and provided at 
the tank connections with devices that will automatically close in the 
event of rupture of the gauge or gauge lines.
    (8) A metal tank exceeding 760 millimeters (30 inches) in any 
horizontal dimension must:
    (i) Be fitted with vertical baffle plates, which meet subparagraph 
(a)(9) of this section, at intervals not exceeding 760 millimeters (30 
inches) to provide strength and to control the excessive surge of fuel; 
or
    (ii) The owner shall submit calculations to the cognizant OCMI 
demonstrating the structural adequacy of the tank in a fully loaded 
static condition and in a worst case dynamic (sloshing) condition.
    (9) Baffle plates, where required in metal tanks, must be of the 
same material and not less than the minimum thickness required in the 
tank walls and must be connected to the tank walls by welding or 
brazing. Limber holes at the bottom and air holes at the top of all 
baffles must be provided.
    (10) Iron or steel diesel fuel tanks must not be galvanized on the 
interior. Galvanizing, paint, or other suitable

[[Page 277]]

coating must be used to protect the outside of iron and steel diesel 
fuel tanks and the inside and outside of iron and steel gasoline fuel 
tanks.
    (b) Location and installation. Independent fuel tanks must be 
located and installed in compliance with the requirements of this 
paragraph.
    (1) Fuel tanks must be located in, or as close as practicable to, 
machinery spaces.
    (2) Fuel tanks and fittings must be so installed as to permit 
examination, testing, or removal for cleaning with minimum disturbance 
to the hull structure.
    (3) Fuel tanks must be adequately supported and braced to prevent 
movement. The supports and braces must be insulated from contact with 
the tank surfaces with a nonabrasive and nonabsorbent material.
    (4) All fuel tanks must be electrically bonded to a common ground.
    (c) Tests. Independent fuel tanks must be tested in compliance with 
the requirements of this part prior to being used to carry fuel.
    (1) Prior to installation, tanks vented to the atmosphere must be 
hydrostatically tested to, and must withstand, a pressure of 35 kPa (5 
psig) or 1\1/2\ times the maximum pressure head to which they may be 
subjected in service, whichever is greater. A standpipe of 3.5 meters 
(11.5 feet) in height attached to the tank may be filled with water to 
accomplish the 35 kPa (5 psig) test. Permanent deformation of the tank 
will not be cause for rejection unless accompanied by leakage.
    (2) After installation of the fuel tank on a vessel, the complete 
installation must be tested in the presence of a marine inspector, or 
individual specified by the cognizant OCMI, to a heat not less than that 
to which the tank may be subjected in service. Fuel may be used as the 
testing medium.
    (3) All tanks not vented to the atmosphere must be constructed and 
tested in accordance with Sec. 182.330 of this part.
    (d) Alternative procedures. A vessel of not more than 19.8 meters 
(65 feet) in length carrying not more than 12 passengers, with 
independent gasoline fuel tanks built in accordance with ABYC Project H-
24, or 33 CFR 183, subpart J, or with independent diesel fuel tanks 
built in accordance with ABYC Project H-33, will be considered as 
meeting the requirements of this section. However, tanks must not be 
fabricated from any material not listed in Table 182.440(a)(1) without 
approval by the Commandant under paragraph (a)(3) of this section.

[CGD 85-080, 61 FR 986, Jan. 10, 1996, as amended by USCG-1999-5151, 64 
FR 67186, Dec. 1, 1999]



Sec. 182.445  Fill and sounding pipes for fuel tanks.

    (a) Fill pipes for fuel tanks must be not less than 40 millimeters 
(1.5 inches) nominal pipe size.
    (b) There must be a means of accurately determining the amount of 
fuel in each fuel tank either by sounding, through a separate sounding 
pipe or a fill pipe, or by an installed marine type fuel gauge.
    (c) Where sounding pipes are used, their openings must be at least 
as high as the opening of the fill pipe and they must be kept closed at 
all times except during sounding.
    (d) Fill pipes and sounding pipes must be so arranged that overflow 
of liquid or vapor cannot escape to the inside of the vessel.
    (e) Fill pipes and sounding pipes must run as directly as possible, 
preferably in a straight line, from the deck connection to the top of 
the tank. Such pipes must terminate on the weather deck and must be 
fitted with shutoff valves, watertight deck plates, or screw caps, 
suitably marked for identification. Gasoline fill pipes and sounding 
pipes must extend to within one-half of their diameter from the bottom 
of the tank. Diesel fill pipes and sounding pipes may terminate at the 
top of the tank.
    (f) A vessel of not more than 19.8 meters (65 feet) carrying not 
more than 12 passengers, with a gasoline fuel system built in accordance 
with ABYC Project H-24, or 33 CFR 183, subpart J, or with a diesel fuel 
system built in accordance with ABYC Project H-33, will be considered as 
meeting the requirements of this section.
    (g) Where a flexible fill pipe section is necessary, suitable 
flexible tubing or hose having high resistance to salt

[[Page 278]]

water, petroleum oils, heat and vibration, may be used. Such hose must 
overlap metallic pipe ends at the least 1\1/2\ times the pipe diameter 
and must be secured at each end by clamps. The flexible section must be 
accessible and as near the upper end of the fill pipe as practicable. 
When the flexible section is a nonconductor of electricity, the metallic 
sections of the fill pipe separated thereby must be joined by a 
conductor for protection against generation of a static charge when 
filling with fuel.



Sec. 182.450  Vent pipes for fuel tanks.

    (a) Each unpressurized fuel tank must be fitted with a vent pipe 
connected to the highest point of the tank.
    (b) The net cross sectional area of the vent pipe for a gasoline 
fuel tank must not be less than that of 19 millimeters (0.75 inches) 
outer diameter (O.D.) tubing (0.9 millimeter (0.035 Inch) wall 
thickness, 20 gauge), except that, where the tank is filled under 
pressure, the net cross sectional area of the vent pipe must be not less 
than that of the fill pipe.
    (c) The minimum net cross sectional area of the vent pipe for diesel 
fuel tanks must be as follows:
    (1) Not less than the cross sectional area of 16 millimeters (0.625 
inches) outer diameter (O.D.) tubing (0.9 millimeter (0.035-inch) wall 
thickness, 20 gauge), if the fill pipe terminates at the top of the 
tank;
    (2) Not less than the cross sectional area of 19 millimeters (0.75 
inches) O.D. tubing (0.9 millimeter (0.035-inch) wall thickness, 20 
gauge), if the fill pipe extends into the tank; and
    (3) Not less than the cross sectional area of the fill pipe if the 
tank is filled under pressure.
    (d) The discharge ends of fuel tank vent pipes must terminate on the 
hull exterior as high above the waterline as practicable and remote from 
any hull openings, or they must terminate in U-bends as high above the 
weather deck as practicable and as far as practicable from openings into 
any enclosed spaces. Vent pipes terminating on the hull exterior must be 
installed or equipped to prevent the accidental contamination of the 
fuel by water under normal operating conditions.
    (e) The discharge ends of fuel tank vent pipes must be fitted with 
removable flame screens or flame arresters. The flame screens must 
consist of a single screen of corrosion resistant wire of at least 30x30 
mesh. The flame screens or flame arresters must be of such size and 
design as to prevent reduction in the net cross sectional area of the 
vent pipe and permit cleaning or renewal of the flame screens or 
arrester elements.
    (f) A vessel of not more than 19.8 meters (65 feet) in length 
carrying not more than 12 passengers, with fuel gasoline tank vents 
built in accordance with ABYC Project H-24, or 33 CFR 183, subpart J, or 
with diesel fuel tank vents built in accordance with ABYC Project H-33, 
will be considered as meeting the requirements of this section.
    (g) Where a flexible vent pipe section is necessary, suitable 
flexible tubing or hose having high resistance to salt water, petroleum 
oils, heat and vibration, may be used. Such hose must overlap metallic 
pipe ends at least 1\1/2\ times the pipe diameter and must be secured at 
each end by clamps. The flexible section must be accessible and as near 
the upper end of the vent pipe as practicable.
    (h) Fuel tank vent pipes shall be installed to gradient upward to 
prevent fuel from being trapped in the line.



Sec. 182.455  Fuel piping.

    (a) Materials and workmanship. The materials and construction of 
fuel lines, including pipe, tube, and hose, must comply with the 
requirements of this paragraph.
    (1) Fuel lines must be annealed tubing of copper, nickel-copper, or 
copper-nickel having a minimum wall thickness of 9 millimeters (0.035 
inch) except that:
    (i) Diesel fuel piping of other materials, such as seamless steel 
pipe or tubing, which provide equivalent safety may be used;
    (ii) Diesel fuel piping of aluminum is acceptable on aluminum hull 
vessels provided it is a minimum of Schedule 80 wall thickness; and
    (iii) when used, flexible hose must meet the requirements of 
Sec. 182.720(e) of this part.

[[Page 279]]

    (2) Tubing connections and fittings must be of nonferrous drawn or 
forged metal of the flared type except that flareless fittings of the 
non-bite type may be used when the tubing system is of nickel-copper or 
copper-nickel. When making tube connections, the tubing must be cut 
square and flared by suitable tools. Tube ends must be annealed before 
flaring.
    (3) Cocks are prohibited except for the solid bottom type with 
tapered plugs and union bonnets.
    (4) Valves for gasoline fuel must be of a suitable nonferrous type.
    (b) Installation. The installation of fuel lines, including pipe, 
tube, and hose, must comply with the requirements of this paragraph.
    (1) Gasoline fuel lines must be connected at the top of the fuel 
tank and run at or above the level of the tank top to a point as close 
to the engine connection as practicable, except that lines below the 
level of the tank top are permitted if equipped with anti-siphon 
protection.
    (2) Diesel fuel lines may be connected to the fuel tank at or near 
the bottom of the tank.
    (3) Fuel lines must be accessible, protected from mechanical injury, 
and effectively secured against excessive movement and vibration by the 
use of soft nonferrous metal straps which have no sharp edges and are 
insulated to protect against corrosion. Where passing through bulkheads, 
fuel lines must be protected by close fitting ferrules or stuffing 
boxes. All fuel lines and fittings must be accessible for inspection.
    (4) Shutoff valves, installed so as to close against the fuel flow, 
must be fitted in the fuel supply lines, one at the tank connection and 
one at the engine end of the fuel line to stop fuel flow when servicing 
accessories. The shutoff valve at the tank must be manually operable 
from outside the compartment in which the valve is located, preferably 
from an accessible position on the weather deck. If the handle to the 
shutoff valve at the tank is located inside the machinery space, it must 
be located so that the operator does not have to reach more than 300 
millimeters (12 inches) into the machinery space and the valve handle 
must be shielded from flames by the same material the hull is 
constructed of, or some noncombustible material. Electric solenoid 
valves must not be used, unless used in addition to the manual valve.
    (5) A loop of copper tubing or a short length of flexible hose must 
be installed in the fuel supply line at or near the engines. The 
flexible hose must meet the requirements of Sec. 182.720(e).
    (6) A suitable metal marine type strainer, meeting the requirements 
of the engine manufacturer, must be fitted in the fuel supply line in 
the engine compartment. Strainers must be leak free. Strainers must be 
the type of opening on top for cleaning screens. A drip pan fitted with 
flame screen must be installed under gasoline strainers. Fuel filter and 
strainer bowls must be highly resistant to shattering due to mechanical 
impact and resistant to failure due to thermal shock. Fuel filters 
fitted with bowls of other than steel construction must be approved by 
the Commandant and be protected from mechanical damage. Approval of 
bowls of other than steel construction will specify if a flame shield is 
required.
    (7) All accessories installed in the fuel line must be independently 
supported.
    (8) Outlets in gasoline fuel lines that would permit drawing fuel 
below deck, for any purpose, are prohibited.
    (9) Valves for removing water or impurities from diesel fuel in 
water traps or stainers are permitted. These valves must be provided 
with caps or plugs to prevent fuel leakage.
    (c) Alternative procedures. A vessel of not more than 19.8 meters 
(65 feet) carrying no more than 12 passengers, with machinery powered by 
gasoline and a fuel system built in accordance with ABYC Project H-24, 
or 33 CFR 183, subpart J, or with machinery powered by diesel fuel and a 
fuel system built in accordance with ABYC Project H-33, will be 
considered as meeting the requirements of this section.

[CGD 85-080, 61 FR 986, Jan. 10, 1996, as amended by USCG-2001-10224, 66 
FR 48621, Sept. 21, 2001]

[[Page 280]]



Sec. 182.458  Portable fuel systems.

    (a) Portable fuel systems, including portable tanks and related fuel 
lines and accessories, are prohibited except where used for portable 
dewatering pumps or outboard motor installations.
    (b) The design, construction and stowage of portable tanks and 
related fuel lines and accessories must meet the requirements of ABYC 
Project H-25, ``Portable Gasoline Fuel systems for Flammable Liquids,'' 
or other standard specified by the Commandant.

[CGD 85-080, 61 FR 986, Jan. 10, 1996, as amended by CGD 97-057, 62 FR 
51050, Sept. 30, 1997; CGD 85-080, 62 FR 51358, Sept. 30, 1997]



Sec. 182.460  Ventilation of spaces containing machinery powered by, or fuel tanks for, gasoline.

    (a) A space containing machinery powered by, or fuel tanks for, 
gasoline must have a ventilation system that complies with this section 
and consists of:
    (1) For an enclosed space:
    (i) At least two natural ventilation supply ducts located at one end 
of the space and that extend to the lowest part of the space or to the 
bilge on each side of the space; and
    (ii) A mechanical exhaust system consisting of at least two 
ventilation exhaust ducts located at the end of the space opposite from 
where the supply ducts are fitted, which extend to the lowest part of 
the bilge of the space on each side of the space, and which are led to 
one or more powered exhaust blowers; and
    (2) For a partially enclosed space, at least one ventilation duct 
installed in the forward part of the space and one ventilation duct 
installed in the after part of the space, or as otherwise required by 
the cognizant OCMI. Ducts for partially enclosed spaces must have cowls 
or scoops as required by paragraph (i) of this section.
    (b) A mechanical exhaust system required by paragraph (a)(1)(ii)