[Federal Register Volume 82, Number 137 (Wednesday, July 19, 2017)]
[Proposed Rules]
[Pages 33026-33030]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 2017-15165]
-----------------------------------------------------------------------
ENVIRONMENTAL PROTECTION AGENCY
40 CFR Part 52
[EPA-R06-OAR-2015-0496; FRL-9964-11-Region 6]
Approval and Promulgation of Implementation Plans; Texas;
Reasonably Available Control Technology for the 2008 8-Hour Ozone
National Ambient Air Quality Standard
AGENCY: Environmental Protection Agency (EPA).
ACTION: Proposed rule.
-----------------------------------------------------------------------
SUMMARY: Pursuant to the Federal Clean Air Act (CAA or Act), the
Environmental Protection Agency (EPA) is proposing to conditionally
approve revisions to the Texas State Implementation Plan (SIP)
addressing Oxides of Nitrogen (NOX) Reasonably Available
Control Technology (RACT) for the Martin Marietta (formerly, Texas
Industries, Inc., or TXI) cement manufacturing plant in Ellis County.
We are proposing to fully approve revisions to the Texas SIP addressing
NOX RACT for all other affected sources in the ten county
Dallas Fort Worth (DFW) 2008 8-Hour ozone nonattainment area. We are
also proposing to approve NOX RACT negative declarations (a
finding that there are no emission sources in certain categories) for
the DFW 2008 8-Hour ozone nonattainment area. The DFW 2008 8-Hour ozone
nonattainment area consists of Collin, Dallas, Denton, Ellis, Johnson,
Kaufman, Parker, Rockwall, Tarrant, and Wise counties. The RACT
requirements apply to major sources of NOX in these ten
counties.
DATES: Comments must be received on or before August 18, 2017.
ADDRESSES: Submit your comments, identified by Docket No. EPA-R06-OAR-
2015-0496 or via email to [email protected]. Follow the on-line
instructions for submitting comments. Once submitted, comments cannot
be edited or removed from Regulations.gov. The EPA may publish any
comment received to its public docket. Do not submit electronically any
information you consider to be Confidential Business Information (CBI)
or other information whose disclosure is restricted by statute.
Multimedia submissions (audio, video, etc.) must be accompanied by a
written comment.
[[Page 33027]]
The written comment is considered the official comment and should
include discussion of all points you wish to make. The EPA will
generally not consider comments or comment contents located outside of
the primary submission (i.e. on the web, cloud, or other file sharing
system). For additional submission methods, please contact Alan Shar,
(214) 665-6691, [email protected]. For the full EPA public comment
policy, information about CBI or multimedia submissions, and general
guidance on making effective comments, please visit http://www2.epa.gov/dockets/commenting-epa-dockets.
Docket: The index to the docket for this action is available
electronically at www.regulations.gov and in hard copy at the EPA
Region 6, 1445 Ross Avenue, Suite 700, Dallas, Texas. While all
documents in the docket are listed in the index, some information may
be publicly available only at the hard copy location (e.g., copyrighted
material), and some may not be publicly available at either location
(e.g., CBI).
FOR FURTHER INFORMATION CONTACT: Mr. Alan Shar (6MM-AA), (214) 665-
6691, [email protected]. To inspect the hard copy materials, please
contact Alan Shar.
SUPPLEMENTARY INFORMATION: Throughout this document ``we,'' ``us,'' and
``our'' refer to EPA.
Outline
I. Background
A. What is RACT, and what are the RACT requirements relevant for
this action?
II. Evaluation
A. What is the Texas Commission on Environmental Quality's
(TCEQ) approach and analysis to RACT?
B. Is Texas' RACT determination for NOX sources
approvable?
C. Are there negative declarations for categories of
NOX sources within this nonattainment area?
D. RACT and Cement Manufacturing Plants
E. Ellis County Cement Manufacturing Plants
F. What is a conditional approval?
III. Proposed Action
IV. Statutory and Executive Order Reviews
I. Background
A. What is RACT and what are the RACT requirements relevant for this
action?
Section 172(c)(1) of the Clean Air Act (CAA, Act) requires that
SIPs for nonattainment areas ``provide for the implementation of all
reasonably available control measures as expeditiously as practicable
(including such reductions in emissions from existing sources in the
area as may be obtained through the adoption, at a minimum, of
reasonably available control technology) and shall provide for
attainment of the primary National Ambient Air Quality Standards
(NAAQS).'' The EPA has defined RACT as the lowest emissions limitation
that a particular source is capable of meeting by the application of
control technology that is reasonably available, considering
technological and economic feasibility. See September 17, 1979 (44 FR
53761).
Section 182(b)(2) of the Act requires states to submit a SIP
revision and implement RACT for major stationary sources in moderate
and above ozone nonattainment areas. For a Moderate, Serious, or Severe
area a major stationary source is one that emits, or has the potential
to emit, 100, 50, or 25 tons per year (tpy) or more of VOCs or
NOX, respectively. See CAA sections 182(b), 182(c), and
182(d). The EPA provides states with guidance concerning what types of
controls could constitute RACT for a given source category through the
issuance of Control Technique Guidelines (CTG) and Alternative Control
Techniques (ACT) documents. See http://www.epa.gov/airquality/ozonepollution/SIPToolkit/ctgs.html (URL dating August 17, 2014) for a
listing of EPA-issued CTGs and ACTs.
The DFW nonattainment area was designated nonattainment for the
1997 8-Hour ozone standard and classified as Moderate with an
attainment deadline of June 15, 2010. See January 14, 2009 (74 FR
1903).
The DFW area was later reclassified to Serious on December 20, 2010
(75 FR 79302) because it failed to attain the 1997 8-Hour standard by
its attainment deadline of June 15, 2010. Thus, per section 182(c) of
the CAA, a major stationary source in the DFW area, is one which emits,
or has the potential to emit, 50 tpy or more of VOCs or NOX.
The EPA approved NOX RACT for the DFW area classified as
Serious under the 1997 8-Hour Ozone standard on March 27, 2015 (80 FR
16291).
The EPA designated the DFW area as nonattainment for the 2008 8-
Hour ozone NAAQS with a moderate classification. The designated area
for the 2008 standard includes Wise County, which was not included as
part of the nonattainment area for the 1997 8-Hour Ozone standard. See
May 21, 2012 (77 FR 30088), 40 CFR 81.344; and Mississippi Commission
on Environmental Quality vs. EPA, No. 12-1309 (D.C. Cir., June 2, 2015)
(upholding EPA's inclusion of Wise County in the DFW 2008 8-Hour ozone
nonattainment area).
Thus, based on the moderate classification of the DFW area for the
2008 ozone standard, under section 182(b) of the CAA, a major
stationary source in Wise County is one that emits, or has the
potential to emit, 100 tpy or more of VOCs or NOX.
II. Evaluation
A. What is the TCEQ's approach and analysis to RACT?
Sections 182(b)(2)(A) and (B) of the CAA require that states must
ensure RACT is in place for each source category for which EPA has
issued a CTG, and for any major source not covered by a CTG. The EPA
has not issued CTGs for sources of NOX, so the
NOX RACT requirement applies to all major sources of
NOX. As a part of its July 10, 2015 DFW SIP submittal, TCEQ
conducted RACT analyses to demonstrate that the RACT requirements for
affected NOX sources in the DFW 2008 8-Hour ozone
nonattainment area have been satisfied, relying on the NOX
RACT rules EPA had previously approved for the DFW area for its
classification as Serious for the 1997 8-Hour ozone standard. See March
27, 2015 (80 FR 16292), and 40 CFR 51.1112. The RACT analysis is
contained in Appendix F of the TCEQ July 10, 2015 SIP submittal as a
component of the DFW 2008 8-Hour ozone attainment demonstration plan.
B. Is Texas' RACT determination for NOX sources approvable?
The requirements for RACT are included in 182(b)(2) of the Act and
further explained in our ``SIP Requirements Rule'' of March 6, 2015 (80
FR 12279), which explains States should refer to existing CTGs and ACTs
as well as all relevant technical information including recent
technical information received during the public comment period to
determine if RACT is being applied. States may conclude, in some cases,
that sources already addressed by RACT determinations to meet the 1-
Hour and/or the 1997 8-Hour ozone NAAQS do not need to implement
additional controls to meet the 2008 ozone NAAQS RACT requirement. The
EPA has previously found that Texas NOX rules meet RACT for
the 1-Hour and the 1997 8-Hour standards. See March 27, 2015 (80 FR
16291).
Texas adopted new rules for wood-fired boilers in the DFW area, and
new rules for major sources in the added county, Wise County, and
determined they were RACT. We have reviewed the wood-fired boilers
rules and the rules for major sources in Wise County and
[[Page 33028]]
are proposing that those rules are RACT for the covered sources. In
addition, we are proposing to determine that the State's certification
that the applicable control requirements Texas has in place for all
other affected NOX sources as identified in Table F-4 of the
submittal (including the proposed conditional approval for the Martin
Marietta cement manufacturing plant in Ellis County) meet the RACT
requirement for the 2008 8-Hour ozone standard. See part 3, section 5
of the TSD.
Table 1 below contains a list of affected source categories, EPA
reference documents, and the corresponding sections of 30 TAC Chapter
117 that TCEQ determined were RACT for sources of NOX in the
DFW area for the 2008 NAAQS. See Table F1, Appendix F of the July 10,
2015 DFW SIP submittal.
Table 1--Source Categories, EPA reference Documents, and Corresponding Section of 30 TAC Chapter 117 Fulfilling
RACT
----------------------------------------------------------------------------------------------------------------
30 TAC chapter 117
Source category EPA reference documents fulfilling RACT
----------------------------------------------------------------------------------------------------------------
Glass Manufacturing........................... NOX Emissions from Glass Manufacturing Sec. 117.400-Sec.
(EPA-453/R-94-037, June 1994). 117.456
Industrial, Commercial, and Institutional NOX Emissions from Industrial, Sec. 117.400-Sec.
Boilers. Commercial and Institutional Boilers 117.456
(EPA-453/R-94-022, March 1994).
Iron and Steel Mills.......................... NOX Emissions from Iron and Steel Mills Sec. 117.400-Sec.
(EPA-453/R-94-065, September 1994). 117.456
Process Heaters............................... NOXEmissions from Process Heaters (EPA- Sec. 117.400-Sec.
453/R-93-034, September 1993). 117.456
Stationary Internal Combustion Engines........ NOX Emissions from Stationary Internal Sec. 117.400-Sec.
Combustion Engines (EPA-453/R-93-032, 117.456
July 1993, Updated September 2000).
Stationary Turbines........................... NOX Emissions from Stationary Sec. 117.400-Sec.
Combustion Turbines (EPA-453/R-93-007, 117.456
January 1993).
Utility Boilers............................... NOX Emissions from Utility Boilers (EPA- Sec. 117.1300-Sec.
453/R-94-023, March 1994). 117.1356
----------------------------------------------------------------------------------------------------------------
On April 13, 2016 (81 FR 21747), we approved revisions to 30 TAC
Chapter 117 (NOX rules) for control of NOX
emissions for affected sources in the DFW area as part of the SIP, but
did not make the determination whether these rule revisions met RACT at
81 FR 21747. See docket No. EPA-R06-OAR-2015-0497 at
www.regulations.gov.
We have reviewed the emission limitations and control requirements
for the above source categories, Table 1, in 30 TAC Chapter 117, and
compared them against EPA's ACT documents, available technical
information, and guidelines. Based on our review and evaluation we
found the emission limitations and control requirements in 30 TAC
Chapter 117 for the above source categories to be consistent with our
guidance and ACT documents, and based upon available technical
information that the corresponding sections in 30 TAC Chapter 117
provide for the lowest emission limitation through application of
control techniques that are reasonably available considering
technological and economic feasibility. For more information, see part
3, section 6 of the TSD prepared in conjunction with this action. Also,
see part 4 of the TSD for the March 27, 2015 (80 FR 16291) at
www.regulations.gov, docket ID No. EPA-R06-OAR-2013-0804.
We are proposing to find that the control requirements for the
source categories identified in Table 1 are RACT for all affected
sources in the ten County DFW area under the 2008 8-Hour ozone NAAQS.
See part 3, sections 5-7 of the TSD.
C. Are there negative declarations for categories of NOX
sources within this nonattainment area?
States are not required to adopt RACT limits for source categories
for which no sources exist in a nonattainment area and can submit a
negative declaration to that effect. Texas has reviewed its emissions
inventory and determined that there are no nitric and adipic acid
manufacturing operations in the DFW area. See Table F-1, page 8 of the
Appendix F, titled ``State Rules Addressing NOX RACT
Requirements in ACT Reference.'' We are also unaware of any such
facilities operating in the DFW nonattainment area, and thus we are
proposing to approve the negative declarations made for the nitric and
adipic acid manufacturing operations in the ten County DFW area under
the 2008 8-Hour ozone NAAQS.
D. RACT and Cement Manufacturing Plants
As detailed in Table 2 below, EPA has issued guidance on
NOX emissions from Cement Manufacturing Plants and Texas has
adopted rules for the control of NOX emissions from Cement
Manufacturing Plants codified at 30 TAC Chapter 117. The rules
establish NOX emissions by adopting a NOX cap on
each of the cement manufacturing plants in the area.
Table 2--Cement Manufacturing, EPA Reference Documents, and Corresponding Section of 30 TAC Chapter 117
Fulfilling RACT
----------------------------------------------------------------------------------------------------------------
30 TAC chapter 117
Source category EPA reference documents fulfilling RACT
----------------------------------------------------------------------------------------------------------------
Cement Manufacturing.......................... NOX Emissions from Cement Manufacturing Sec. 117.3100--Sec.
(EPA-453/R-94-004, 1994/03); and NOX 117.3145
Control Technologies for the Cement
Industry: Final Report (EPA-457/R-00-
002, 2000/09).
----------------------------------------------------------------------------------------------------------------
The source cap provision is a NOX emission limitation
expressed in tons per day (tpd) for cement kilns in Ellis County
(thereafter, Cap8hour, cap). The Cap8hour was
established based on a formula that included average annual tons of
clinker produced for the three-year period of 2003, 2004, and 2005 plus
one standard deviation. See 30 TAC Sec. 117.3123. The addition of one
standard deviation to the average annual clinker production rates was
intended to provide further operational flexibility for the sources as
they calculated their production rates for the wet and dry
[[Page 33029]]
kiln systems, ``NW'' and ``ND'', in order for
TCEQ to determine a tpd numerical value for the Cap8hour
emission limitation. See Equation 117.3123(b). The formula for
establishing the Cap8hour includes an emission factor of 3.4
lbs of NOX/ton of clinker produced for wet kilns, and an
emission factor of 1.7 lbs of NOX/ton of clinker produced
for dry kilns. Compliance with the 30-day rolling average cap must be
shown starting March 31st of each calendar year, and the NOX
cap limitation in section 117.3123 applies from March 1st through
October 31st of each calendar year. See part 4, sections 8 and 9 of the
TSD for more information. Each cement manufacturing plant in Ellis
County has been allocated a specific value in tons per day as its cap.
Once established based on 2003, 2004, and 2005 production rates the
calculated emission rate is not changed. We approved this rule on
January 14, 2009 (74 FR 1927) as part of the DFW SIP, and as meeting
the NOX RACT requirement for cement kilns operating in the
DFW 1997 8-Hour ozone nonattainment area. Since that time, there are no
longer any wet kilns in the area.
E. Ellis County Cement Manufacturing Plants
Currently, three companies operate four cement kilns in Ellis
County. Below we evaluate whether RACT is in place for these plants.
Ash Grove Cement Company (Ash Grove) operated three kilns in Ellis
County. A federally enforceable 2013 consent decree, not a part of this
SIP submittal, required by September 10, 2014 shutdown of two kilns and
reconstruction of kiln #3 with Selective Noncatalytic Reduction (SNCR)
with an emission limitation of 1.5 pounds of NOX per ton of
clinker produced (lb NOX/ton of clinker), and a 12-month
rolling tonnage limit for NOX of 975 tpy. A May 11, 2016
letter from Ash Grove to TCEQ confirms decommissioning of the kilns # 1
and 2. We have made this letter available in docket for this action.
The reconstructed kiln #3 is a dry kiln subject to the 1.5 lb
NOX/ton of clinker emission standard per 40 CFR 60 subpart F
(New Source Performance Standard--NSPS) for Portland Cement Plants. A
review of NOX emission limits in place across the country is
included with the TSD for this action, and it can be seen that this
limit is well within the range of the most stringent controls currently
in place. This NOX emission limit is the lowest emission
limitation through application of control techniques (SNCR) that is
reasonably available considering technological and economic
feasibility, and therefore the NSPS satisfies RACT for Ash Grove in
Ellis County. The TCEQ has the delegated authority to enforce this
federal standard through the agency's general NSPS delegation. The TCEQ
air permit for this plant is available in the docket for this action.
Further, we are proposing to remove our approval of the cap rules as
being RACT for Ash Grove and finding that the NSPS applicable to Ash
Grove meets RACT for the 2008 ozone NAAQS.
Holcim U.S., Inc. (Holcim) currently has two dry preheater/
precalciner kilns equipped with SNCR. There has not been a long wet
cement kiln associated with the Holcim operations in Ellis County. The
current section 117.3123 source cap is established at 5.3 tpd
NOX for Holcim. As discussed above this cap was established
based on an emission factor of 1.7 lbs/ton of clinker. Again such an
emission rate is among the most stringent emission rates in place
across the country. We believe the NOX emission limitation
established by the section 117.3123 cap is the lowest emission
limitation through application of control techniques (SNCR) that is
reasonably available considering technological and economic feasibility
for this source, and therefore it satisfies RACT for Holcim.
Consequently, we are retaining the cap rules as meeting RACT for Holcim
for the 2008 ozone NAAQS.
Martin Marietta (MM) currently operates one dry preheater/
precalciner kiln #5. The existing section 117.3123 source cap allocated
to this kiln is set at 7.9 tpd NOX. The permitted capacity
of this kiln is 2,800,000 tons of clinker per year, and it has a
permitted emissions limitation of 1.95 lb NOX/ton of
clinker. According to TCEQ, the kiln #5 typically operates well below
the source cap, at an average emission factor below 1.5 lbs/ton of
clinker. While the NOX limit of 1.95 lbs/ton of clinker is
somewhat higher than the limits in place at other cement plants in
Ellis County, it is still among the most stringent limits in the
country. We believe that it is reasonable for the limit to be less
stringent than Ash Grove's limit because Ash Grove (kiln #3) is a new
source and new sources generally can achieve a lower emission rate than
existing sources that must be retrofitted. We also believe it is
reasonable that MM's limit be somewhat higher than the emission factor
(1.7 lbs/ton of clinker) used to establish the emission cap at Holcim
because the emission cap allows for operational flexibility to balance
emissions between the two Holcim kilns.
We are proposing to conditionally approve 1.95 lbs/ton of clinker
as RACT for MM following the State's written commitment to EPA. The
commitment letter states that through an agreed order between TCEQ and
MM, certain conditions of MM's air permit, concerning the
NOX emission limitation of 1.95 lb/ton of clinker produced
from kiln #5, will be incorporated into a future revision to the Texas
SIP. That particular future SIP revision will be submitted to EPA per
timeline described in section F below.
We have reviewed the emission limitations and control requirements
for the source category listed in Table 2 above, the corresponding
sections in 30 TAC Chapter 117, and the Appendix F of the July 10, 2015
DFW SIP submittal, and compared them against EPA's ACT documents and
guidelines. Based on our review and evaluation we found the emission
limitations and control requirements in 30 TAC Chapter 117 and the
Appendix F of the July 10, 2015 DFW SIP submittal for the above source
category to be consistent with our guidance and ACT documents. We have
also found these limits are among the most stringent in place in the
country, at this time. As such, we are proposing that they provide for
the lowest emission limitation through application of control
techniques that are reasonably available considering technological and
economic feasibility. For more information, see parts 2 and 4 of the
TSD prepared in conjunction with this action.
F. What is a conditional approval?
Under section 110(k)(4) of the Act the Administrator may approve a
plan revision based on a commitment of the State to adopt specific
enforceable measures by a date certain, but not later than 1 year after
the date of approval of the plan revision. Any such conditional
approval shall be treated as a disapproval, if the State fails to
comply with such commitment. If the State does not meet its commitment
within the specified time period by 1) not adopting and submitting
measures by the date it committed to, 2) not submitting anything, or 3)
EPA finding the submittal incomplete, the approval will be converted to
a disapproval. The Regional Administrator would send a letter to the
State finding that it did not meet its commitment or that the submittal
is incomplete and that the SIP submittal was therefore disapproved. The
18-month clock for sanctions and the two-year clock for a Federal
Implementation Plan would start as of the date of the letter.
Subsequently, a notice to that effect would be published in the Federal
Register, and appropriate language inserted in the CFR.
[[Page 33030]]
III. Proposed Action
We are proposing to conditionally approve revisions to the Texas
SIP addressing NOX RACT for the Martin Marietta (formerly,
Texas Industries, Inc., or TXI) cement manufacturing plant in Ellis
County. We are proposing to approve revisions to the Texas SIP
addressing NOX RACT for all other affected sources in the
ten County DFW 2008 8-Hour ozone nonattainment area. We are also
proposing to approve NOX RACT negative declarations for the
DFW area under the 2008 8-Hour ozone NAAQS.
IV. Statutory and Executive Order Reviews
Under the CAA, the Administrator is required to approve a SIP
submission that complies with the provisions of the Act and applicable
Federal regulations. 42 U.S.C. 7410(k); 40 CFR 52.02(a). Thus, in
reviewing SIP submissions, the EPA's role is to approve state choices,
provided that they meet the criteria of the CAA. Additional information
about these statutes and Executive Orders can be found at http://www2.epa.gov/laws-regulations/laws-and-executive-orders.
A. Executive Order 12866: Regulatory Planning and Review and Executive
Order 13563: Improving Regulation and Regulatory Review
This action is not a significant regulatory action and was
therefore not submitted to the Office of Management and Budget (OMB)
for review.
B. Paperwork Reduction Act (PRA)
This action does not impose an information collection burden under
the PRA because this action does not impose additional requirements
beyond those imposed by state law.
C. Regulatory Flexibility Act (RFA)
I certify that this action will not have a significant economic
impact on a substantial number of small entities under the RFA. This
action will not impose any requirements on small entities beyond those
imposed by state law.
D. Unfunded Mandates Reform Act (UMRA)
This action does not contain any unfunded mandate as described in
UMRA, 2 U.S.C. 1531-1538, and does not significantly or uniquely affect
small governments. This action does not impose additional requirements
beyond those imposed by state law. Accordingly, no additional costs to
State, local, or tribal governments, or to the private sector, will
result from this action.
E. Executive Order 13132: Federalism
This action does not have federalism implications. It will not have
substantial direct effects on the states, on the relationship between
the national government and the states, or on the distribution of power
and responsibilities among the various levels of government.
F. Executive Order 13175: Coordination With Indian Tribal Governments
This action does not have tribal implications, as specified in
Executive Order 13175, because the SIP is not approved to apply on any
Indian reservation land or in any other area where the EPA or an Indian
tribe has demonstrated that a tribe has jurisdiction, and will not
impose substantial direct costs on tribal governments or preempt tribal
law. Thus, Executive Order 13175 does not apply to this action.
G. Executive Order 13045: Protection of Children From Environmental
Health Risks and Safety Risks
The EPA interprets Executive Order 13045 as applying only to those
regulatory actions that concern environmental health or safety risks
that the EPA has reason to believe may disproportionately affect
children, per the definition of ``covered regulatory action'' in
section 2-202 of the Executive Order. This action is not subject to
Executive Order 13045 because it does not impose additional
requirements beyond those imposed by state law.
H. Executive Order 13211: Actions That Significantly Affect Energy
Supply, Distribution, or Use
This action is not subject to Executive Order 13211, because it is
not a significant regulatory action under Executive Order 12866.
I. National Technology Transfer and Advancement Act (NTTAA)
Section 12(d) of the NTTAA directs the EPA to use voluntary
consensus standards in its regulatory activities unless to do so would
be inconsistent with applicable law or otherwise impractical. The EPA
believes that this action is not subject to the requirements of section
12(d) of the NTTAA because application of those requirements would be
inconsistent with the CAA.
J. Executive Order 12898: Federal Actions To Address Environmental
Justice in Minority Populations and Low-Income Population
The EPA lacks the discretionary authority to address environmental
justice in this rulemaking.
List of Subjects in 40 CFR Part 52
Environmental protection, Air pollution control, Hydrocarbons,
Incorporation by reference, Intergovernmental relations, Nitrogen
dioxides, Ozone, Reporting and recordkeeping requirements, Volatile
organic compounds.
Authority: 42 U.S.C. 7401 et seq.
Dated: July 11, 2017.
Samuel Coleman,
Acting Regional Administrator, Region 6.
[FR Doc. 2017-15165 Filed 7-18-17; 8:45 am]
BILLING CODE 6560-50-P