[Federal Register Volume 60, Number 175 (Monday, September 11, 1995)]
[Notices]
[Pages 47170-47171]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 95-22491]
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ENVIRONMENTAL PROTECTION AGENCY
[FRL-5294-3]
Retrofit/Rebuild Requirements for 1993 and Earlier Model Year
Urban Buses; Approval of an Application for Certification of Equipment
AGENCY: Environmental Protection Agency.
ACTION: Notice of agency approval of an application for equipment
certification.
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SUMMARY: The Agency received an application dated October 24, 1994 from
the Engelhard Corporation (Engelhard) with principal place of business
at 101 Wood Avenue, Iselin, New Jersey for certification of urban bus
retrofit/rebuild equipment pursuant to 40 CFR 85.1401-85.1415. On March
6, 1995 EPA published notification that the application had been
received and made the application available for public review and
comment for a period of 45 days (60 FR 12185). EPA has completed its
review of this application and the Director of the Manufacturers
Operations Division has determined that it meets all the requirements
for certification. Accordingly, EPA approves the certification of this
equipment effective September 11, 1995.
The candidate equipment provides a reduction in emissions of
particulate matter (PM) for Detroit Diesel Corporation 6V92TA
MUI(mechanical unit injection) petroleum fueled diesel engines. The
certification of this equipment is applicable under program 2 only. It
does not apply for operators utilizing Program 1 as Engelhard
specifically applied under Program 2 only and did not perform the
additional testing required for Program 1 certification.
The Engelhard application, as well as other materials specifically
relevant to it, are contained in Public Docket A-93-42, entitled
``Certification of Urban Bus Retrofit/Rebuild Equipment''. This docket
is located in room M-1500, Waterside Mall (Ground Floor), U.S.
Environmental Protection Agency, 401 M Street SW, Washington, DC 20460.
Docket items may be inspected from 8:00 a.m. until 4:00 p.m., Monday
through Friday. As provided in 40 CFR
[[Page 47171]]
Part 2, a reasonable fee may be charged by the Agency for copying
docket materials.
DATES: The date of this notice, September 11, 1995, is the official
certification date for this application. The equipment is immediately
available for installation.
FOR FURTHER INFORMATION CONTACT: Anthony Erb, Technical Support Branch,
Manufacturers Operations Division (6405J), U.S. Environmental
Protection Agency, 401 M St. SW, Washington, D.C. 20460. Telephone:
(202) 233-9259.
SUPPLEMENTARY INFORMATION:
I. Background
On October 24, 1995 Engelhard applied for certification of a kit,
for use on 2-cycle petroleum fueled diesel DDC 6V92TA MUI urban bus
engines for the 1979 through 1989 model years, that includes a
catalytic converter muffler (CCM) and incorporates a ceramic in-
cylinder coating applied to the piston crowns, valve face and fire deck
on the engine head. The application was submitted under EPA's Urban
Bus/Retrofit program under Program 2 only.1
\1\EPA promulgated the Retrofit/Rebuild Requirements for 1993
and Earlier Model Year Urban Buses on April 23, 1993 (58 FR 21359).
This final rule established the provisions for an urban bus
retrofit/rebuild program as required by section 219(d) of the Clean
Air Act Amendments (CAAA) of 1990.
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The CCM functions as a catalytic converter and a muffler. It takes
the place of the original muffler in the engine exhaust system. Through
testing in accordance with the Federal Test Procedure for heavy-duty
diesel engines, Engelhard documented that emissions of particulate
matter (PM) were reduced to a level of 0.22 g/bhp-hr with the candidate
equipment installed. Engelhard is certifying this equipment to a
maximum PM emission level of 0.25g/bhp-hr.
Table A.--Certification Levels
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PM level
with
standard
Engine model Model year rebuild and Code Family
addition of designation
CCM and GPX
coating
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DDC 6V92TA MUI........................................... 1979-1989 0.25 All All.
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Emission test results supplied by Engelhard in the application are
shown in Table B. The test data show the reduction in PM. Hydrocarbon
(HC), carbon monoxide (CO), oxides of nitrogen (NOX) and smoke
emissions were within the applicable emission standards with the CCM
installed.
Table B. Certification Emission Test Results (GM/BHP-HR)
------------------------------------------------------------------------
Rebuilt
engine
Baseline with
engine catalyst
before and GPX-
rebuild 4
coating
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HC.................................................. 1.19 0.23
CO.................................................. 2.53 0.46
NOX................................................. 9.55 5.53
PM.................................................. 0.87 0.22
Smoke Test:
Accel............................................. ........ 6.0%
Lug............................................... ........ 3.4%
Peak.............................................. ........ 7.6%
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Urban bus operators who choose to comply with Program 2 and use the
Engelhard equipment will use the PM emission value from Table A when
calculating their average fleet PM level.
II. Summary and Analysis of Comments
EPA received comments from one party on this Engelhard application
during the comment period. The Greater Bridgeport Transit District
stated that their experience using GPX-4 ceramic coatings since 1991
has been positive. The engines have gotten better fuel economy, emitted
less smoke, and consumed less lubrication oil. A copy of the comments
can be found in EPA Docket A-93-42.
III. Certification Approval
The Agency has reviewed this application, along with comments
received from interested parties, and finds that this equipment reduces
particulate matter emissions without causing urban bus engines to fail
to meet any applicable Federal emission requirements. Additionally, EPA
finds that installation of this equipment will not cause or contribute
to an unreasonable risk to the public health, welfare or safety, or
result in any additional range of parameter adjustability or
accessibility to adjustment than that of the engine manufacturer's
emission related part. The application meets the requirements for
certification under the Retrofit/Rebuild Requirements for 1993 and
Earlier Model Year Urban Buses (40 CFR 85.1401 and 85.1415). Thus, the
Agency hereby approves the certification of this equipment.
IV. Operator Requirements and Responsibilities
For operators who have chosen to comply with Program 2, this
equipment is immediately available for use and those who use this
certified kit may claim the PM emissions reduction as stated in Table A
when calculating their Fleet Level Attained.
As stated in the regulations, operators should maintain records for
each engine in their fleet to demonstrate that they are in compliance
with the requirements beginning in January 1, 1995. These records
include purchase records, receipts, and part numbers for the parts and
components used in the rebuilding of urban bus engines.
Mary D. Nichols,
Assistant Administrator for Air and Radiation.
[FR Doc. 95-22491 Filed 9-8-95; 8:45 am]
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