[Federal Register Volume 90, Number 241 (Thursday, December 18, 2025)]
[Rules and Regulations]
[Pages 59057-59061]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 2025-23275]
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ENVIRONMENTAL PROTECTION AGENCY
40 CFR Part 60
[EPA-R06-OAR-2010-0580; FRL-12826-02-R6]
New Source Performance Standards; Delegation of Authority to
Oklahoma
AGENCY: Environmental Protection Agency (EPA).
ACTION: Final rule; notification of delegation.
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SUMMARY: The Environmental Protection Agency (EPA) is approving updates
to the Code of Federal Regulations that reflect Oklahoma's current New
Source Performance Standards (NSPS) delegation status and the mailing
address for the Oklahoma Department of Environmental Quality (ODEQ).
The ODEQ submitted updated regulations for receiving delegation of EPA
authority for implementation and enforcement of certain NSPS. The
updated State regulations incorporate by reference certain NSPS
promulgated by EPA, as they existed through June 30, 2023. The
delegation of authority for implementation and enforcement applies to
sources subject to the delegated NSPS, including those located in
certain areas of Indian country as discussed herein.
DATES: This rule is effective on January 20, 2026.
ADDRESSES: The EPA has established a docket for this action under
Docket ID No. EPA-R06-OAR-2010-0580. All documents in the docket are
listed on the https://www.regulations.gov website. Although listed in
the index, some information is not publicly available, e.g.,
Confidential Business Information or other information whose disclosure
is restricted by statute. Certain other material, such as copyrighted
material, is not placed on the internet. Publicly available docket
materials are available electronically through https://www.regulations.gov.
FOR FURTHER INFORMATION CONTACT: Clovis Steib, EPA Region 6 Office,
Infrastructure and Ozone Section, Air and Radiation Division (ARSI),
214-665-7566, [email protected].
SUPPLEMENTARY INFORMATION: Throughout this document whenever ``we,''
``us,'' or ``our'' is used, we mean the EPA.
I. Background
The background for this action is discussed in detail in our July
7, 2025, proposal (90 FR 29826). In that document we proposed to
approve updates to the delegation of NSPS to ODEQ. The delegation
provides ODEQ with the primary responsibility to implement and enforce
the delegated NSPS standards, as they existed through June 30, 2023.
II. Response to Comments
EPA received two anonymous comments. One comment was deemed to be
non-relevant to this action. The other comment requests EPA encourage
ODEQ to consider carbon dioxide emissions as part of its broader
regulatory and permitting context and in its implementation of NSPS
standards. We thank the commenter for the comment but find the request
to be beyond the scope of the current NSPS delegation. This action aims
to approve ODEQ's requested updates to its current NSPS delegation, it
does not speak to Oklahoma's broader regulatory scheme or alter the
requirements of the delegated NSPS standards. As such, we are
finalizing the NSPS delegations to ODEQ as proposed.
III. Impacts on Areas of Indian Country
Following the U.S. Supreme Court decision in McGirt v. Oklahoma,
140 S. Ct. 2452 (2020), the Governor of the State of Oklahoma requested
approval under Section 10211(a) of the Safe, Accountable, Flexible,
Efficient Transportation Equity Act of 2005: A Legacy for Users, Public
Law 109-59, 119 Stat. 1144, 1937 (August 10, 2005) (``SAFETEA''), to
administer in certain areas of Indian country (as defined at 18 U.S.C.
1151) the State's environmental regulatory programs that were
previously approved by the EPA outside of Indian country. The State's
request excluded certain areas of Indian country further described
below.
The EPA has approved Oklahoma's SAFETEA request to administer all
of the State's EPA-approved environmental regulatory programs in the
requested areas of Indian country. As requested by Oklahoma, the EPA's
approval under SAFETEA does not include Indian country lands, including
rights-of-way running through the same, that: (1) qualify as Indian
allotments, the Indian titles to which have not been extinguished,
under 18 U.S.C. 1151(c); (2) are held in trust by the United States on
behalf of an individual Indian or Tribe; or (3) are owned in fee by a
Tribe, if the Tribe (a) acquired that fee title to such land, or an
area that included such land, in accordance with a treaty with the
United States to which such Tribe was a party, and (b) never allotted
the land to a member or citizen of the Tribe (collectively ``excluded
Indian country lands'').
The EPA's approval under SAFETEA expressly provided that to the
extent the EPA's prior approvals of Oklahoma's environmental programs
excluded Indian country, any such exclusions are superseded for the
geographic areas of Indian country covered by the EPA's approval of
Oklahoma's SAFETEA request. The approval also provided that future
revisions or amendments to Oklahoma's approved environmental regulatory
programs would extend to the covered areas of Indian country (without
any further need for additional requests under SAFETEA).
As explained above, the EPA is finalizing an update to the Oklahoma
NSPS delegation which will apply statewide in Oklahoma. Consistent with
the EPA's SAFETEA approval, this NSPS delegation will apply to areas of
Indian country pursuant to the SAFETEA approval, including to all
[[Page 59058]]
Indian country in the State of Oklahoma other than the excluded Indian
country lands as described above.
IV. Final Action
EPA is taking final action to approve updates to the delegation of
certain NSPS to ODEQ, and amending 40 CFR part 60 to (1) include a
table of the specific NSPS provisions delegated to the ODEQ and (2)
update the mailing address for the ODEQ for submittal of documents
required under the delegated NSPS provisions, so as to provide the ODEQ
with the authority to implement and enforce certain newly incorporated
NSPS promulgated by the EPA and amendments to existing standards
currently delegated, as they existed though June 30, 2023.
V. Statutory and Executive Order Reviews
Under the CAA, EPA previously delegated to the ODEQ the authority
to implement and enforce certain NSPS for sources located in Oklahoma,
as provided for under 42 U.S.C. 7411(c)(1); see also 40 CFR 60.4(b).
Pursuant to the terms and conditions of that delegation, this action
informs the public that EPA has found the ODEQ's October 28, 2024,
request \1\ to update the delegation status for NSPS standards meets
Federal requirements and does not impose additional requirements beyond
those imposed by State law. Through this action, EPA is proposing to
add a table to 40 CFR part 60 listing the specific NSPS currently
delegated to the ODEQ and update the ODEQ's address for submittal of
documents required under the delegated NSPS provisions.
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\1\ The ODEQ previously submitted requests to EPA for updates to
the Oklahoma NSPS delegation, by letters dated August 23, 2012,
March 17, 2015, November 2, 2016, June 6, 2018 (revised with a
subsequent June 29, 2018 letter), December 23, 2019, March 23, 2021
(revised with a subsequent September 14, 2021 email), December 2,
2021 (revised with a subsequent October 17, 2022 letter), October
17, 2022, and November 30, 2023. EPA determined that those requests
met the requirements of the CAA and the 1982 and 1999 NSPS
Delegations concerning the approval of EPA's delegation of authority
for the enforcement and implementation of the NSPS in Oklahoma. EPA
previously proposed an action on ODEQ's request to update its NSPS
delegation (85 FR 31423, May 26, 2020); that proposed action was
subsumed and incorporated into our July 7, 2025, re-proposal (90 FR
29826).
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For this action, a review of all applicable Statutory and Executive
Orders are indicated as follows:
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 as defined in
Executive Order 12866 (58 FR 51735, October 4, 1993) and was therefore
not submitted to the Office of Management and Budget (OMB) for review.
B. Executive Order 14192: Unleashing Prosperity Through Deregulation
This action is not an Executive Order 14192 regulatory action
because this action is not significant under Executive Order 12866.
C. Paperwork Reduction Act (PRA)
This action does not impose an information collection burden under
the PRA (44 U.S.C. 3501 et seq.) because it does not contain any
information collection activities.
D. Regulatory Flexibility Act (RFA)
This action is certified to not have a significant economic impact
on a substantial number of small entities under the RFA (5 U.S.C. 601
et seq.). This action approves the delegation of Federal rules as
requested by the state agency and will therefore have no net regulatory
burden for all directly regulated small entities.
E. Unfunded Mandates Reform Act (UMRA)
This action does not contain an unfunded mandate as described in
UMRA, 2 U.S.C. 1531-1538, and does not significantly or uniquely affect
small governments. This action imposes no enforceable duty on any
State, local, or tribal governments or the private sector.
F. Executive Order 13132: Federalism
This action does not have federalism implications as specified in
Executive Order 13132 (64 FR 43255, August 10, 1999). 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.
G. Executive Order 13175: Consultation and Coordination With Indian
Tribal Governments
This update to the delegation of certain NSPS to ODEQ will apply to
certain areas of Indian country throughout Oklahoma as discussed in the
preamble, and therefore has tribal implications as specified in E.O.
13175 (65 FR 67249, November 9, 2000). However, this action will
neither impose substantial direct compliance costs on federally
recognized tribal governments, nor preempt Tribal law. This action will
not impose substantial direct compliance costs on federally recognized
tribal governments because no actions will be required of Tribal
governments. This action will also not preempt tribal law as no
Oklahoma tribe implements a regulatory program under the CAA and thus
does not have applicable or related Tribal laws. Consistent with the
EPA Policy on Consultation and Coordination with Indian Tribes
(December 7, 2023), the EPA has offered consultation to all 38 Tribal
governments whose lands are located within the exterior boundaries of
the State of Oklahoma and that may be affected by this action and
provided information about this action.
H. Executive Order 13045: Protection of Children From Environmental
Health Risks and Safety Risks
The EPA interprets Executive Order 13045 as applying only to
regulatory actions considered significant under section 3(f)(1) of
Executive Order 12866 and that concern environmental health or safety
risks that EPA has reason to believe may disproportionately affect
children, per the definition of ``covered regulatory action'' in
section 2-202 of Executive Order 13045. This action is not subject to
Executive Order 13045 because it approves a state program.
I. Executive Order 13211: Actions Concerning Regulations That
Significantly Affect Energy Supply, Distribution or Use
This action is not subject to Executive Order 13211 (66 FR 28355,
May 22, 2001), because it is not a significant regulatory action under
Executive Order 12866.
J. National Technology Transfer and Advancement Act (NTTAA)
This rule does not involve technical standards. This action is not
subject to requirements of section 12(d) of the National Technology
Transfer and Advancement Act of 1995 (15 U.S.C. 272 note) because
application of those requirements would be inconsistent with the Clean
Air Act.
K. Congressional Review Act (CRA)
This action is subject to the CRA, and the EPA will submit a rule
report to each House of the Congress and to the Comptroller General of
the United States. This action is not a ``major rule'' as defined by 5
U.S.C. 804(2).
Under section 307(b)(1) of the CAA, petitions for judicial review
of this action must be filed in the United States Court of Appeals for
the appropriate circuit by February 17, 2026. Filing a petition for
reconsideration by the Administrator of this final rule does not affect
the finality of this action for the purposes of judicial review nor
does it extend the time within which a petition
[[Page 59059]]
for judicial review may be filed and shall not postpone the
effectiveness of such rule or action. This action may not be challenged
later in proceedings to enforce its requirements. (See section
307(b)(2).)
List of Subjects in 40 CFR Part 60
Environmental protection, Air pollution control, Administrative
practice and procedure, Hazardous substances, Intergovernmental
relations, Reporting and recordkeeping requirements.
Dated: December 11, 2025.
James McDonald,
Director, Air & Radiation Division, Region 6.
For the reasons stated in the preamble, the EPA amends 40 CFR part
60 as follows:
PART 60--STANDARDS OF PERFORMANCE FOR NEW STATIONARY SOURCES
0
1. The authority citation for part 60 continues to read as follows:
Authority: 42 U.S.C. 7401 et seq.
Subpart A--General Provisions
0
2. Section 60.4 is amended by revising paragraph (b)(38) and adding
paragraph (e)(4) to read as follows:
Sec. 60.4 Address.
* * * * *
(b) * * *
(38) State of Oklahoma: State of Oklahoma, Department of
Environmental Quality, Air Quality Division, P.O. Box 1677, Oklahoma
City, OK 73101-1677.
* * * * *
(e) * * *
(4) The Oklahoma Department of Environmental Quality (ODEQ) has
been delegated the following 40 CFR part 60 standards promulgated by
EPA, as amended in the Federal Register through June 30, 2023. The (X)
symbol is used to indicate each subpart that has been delegated.
Table 3 to Paragraph (b)--Delegation Status for Part 60 Standards--State
of Oklahoma
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Subpart Source category ODEQ
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A.......................... General Provisions (except X
Sec. Sec. 60.4, 60.9,
60.10 and 60.16).
Cb......................... Emissions Guidelines and No
Compliance Times for
Large Municipal Waste
Combustors That are
Constructed On or Before
September 20, 1994.
Cc......................... Emission Guidelines and No
Compliance Times for
Municipal Solid Waste
Landfills.
Cd......................... Emissions Guidelines and No
Compliance Times for
Sulfuric Acid Production
Units.
Ce......................... Emission Guidelines and No
Compliance Times for
Hospital/Medical/
Infectious Waste
Incinerators.
Cf......................... Emission Guidelines and No
Compliance Times for
Municipal Solid Waste
Landfills.
D.......................... Fossil Fueled Steam X
Generators.
Da......................... Electric Utility Steam X
Generating Units.
Db......................... Industrial-Commercial- X
Institutional Steam
Generating Units.
Dc......................... Small Industrial- X
Commercial-Institutional
Steam Generating Units.
E.......................... Incinerators.............. X
Ea......................... Municipal Waste Combustors X
for Which Construction is
Commenced After December
20, 1989, and On or
Before September 20, 1994.
Eb......................... Large Municipal Waste X
Combustors for Which
Construction is Commenced
After September 20, 1994
or for Which Modification
or Reconstruction is
Commenced After June 19,
1996.
Ec......................... Hospital/Medical/ X
Infectious Waste
Incinerators.
F.......................... Portland Cement Plants.... X
G.......................... Nitric Acid Plants........ X
Ga......................... Nitric Acid Plants for X
Which Construction,
Reconstruction, or
Modification Commenced
After October 14, 2011.
H.......................... Sulfuric Acid Plants...... X
I.......................... Hot Mix Asphalt Facilities X
J.......................... Petroleum Refineries...... X
Ja......................... Petroleum Refineries for X
Which Construction,
Reconstruction, or
Modification Commenced
After May 14, 2007.
K.......................... Storage Vessels for X
Petroleum Liquids for
Which Construction,
Reconstruction, or
Modification Commenced
After June 11, 1973, and
Prior to May 19, 1978.
Ka......................... Storage Vessels for X
Petroleum Liquids for
Which Construction,
Reconstruction, or
Modification Commenced
After May 18, 1978, and
Prior to July 23, 1984.
Kb......................... VOC Liquid Storage Vessels X
(Including Petroleum
Liquid Storage Vessels)
for Which Construction,
Reconstruction, or
Modification Commenced
After July 23, 1984, and
On or Before October 4,
2023.
Kc......................... VOC Liquid Storage Vessels No
(Including Petroleum
Liquid Storage Vessels)
for Which Construction,
October 4, 2023.
L.......................... Secondary Lead Smelters X
for Which Construction,
Reconstruction, or
Modification Commenced
After June 11, 1973, and
On or Before December 1,
2022.
La......................... Secondary Lead Smelters No
for Which Construction,
Reconstruction, or
Modification Commenced
After December 1, 2022.
M.......................... Secondary Brass and Bronze X
Production Plants.
N.......................... Primary Emissions from X
Basic Oxygen Process
Furnaces for Which
Construction Commenced
After June 11, 1973.
Na......................... Secondary Emissions from X
Basic Oxygen Process
Steelmaking Facilities
for Which Construction is
Commenced After January
20, 1983.
O.......................... Sewage Treatment Plants... X
P.......................... Primary Copper Smelters... X
Q.......................... Primary Zinc Smelters..... X
R.......................... Primary Lead Smelters..... X
S.......................... Primary Aluminum Reduction X
Plants.
[[Page 59060]]
T.......................... Phosphate Fertilizer X
Industry: Wet Process
Phosphoric Plants.
U.......................... Phosphate Fertilizer X
Industry: Superphosphoric
Acid Plants.
V.......................... Phosphate Fertilizer X
Industry: Diammonium
Phosphate Plants.
W.......................... Phosphate Fertilizer X
Industry: Triple
Superphosphate Plants.
X.......................... Phosphate Fertilizer X
Industry: Granular Triple
Superphosphate Storage
Facilities.
Y.......................... Coal Preparation and X
Processing Plants.
Z.......................... Ferroalloy Production X
Facilities.
AA......................... Steel Plants: Electric Arc X
Furnaces Constructed
After October 21, 1974,
and On or Before August
17, 1983.
AAa........................ Steel Plants: Electric Arc X
Furnaces & Argon-Oxygen
Decarburization Vessels
Constructed After August
17, 1983, and On or
Before May 16, 2022.
AAb........................ Steel Plants: Electric Arc No
Furnaces & Argon-Oxygen
Decarburization Vessels
Constructed After May 16,
2022.
BB......................... Kraft Pulp Mills.......... X
BBa........................ Kraft Pulp Mill Affected X
Sources for Which
Construction,
Reconstruction, or
Modification Commenced
After May 23, 2013.
CC......................... Glass Manufacturing Plants X
DD......................... Grain Elevators........... X
EE......................... Surface Coating of Metal X
Furniture.
GG......................... Stationary Gas Turbines... X
HH......................... Lime Manufacturing Plants. X
KK......................... Lead-Acid Battery X
Manufacturing Plants for
Which Construction,
Reconstruction, or
Modification Commenced
After January 14, 1980,
and On or Before February
23, 2022.
KKa........................ Lead-Acid Battery X
Manufacturing Plants for
Which Construction,
Reconstruction, or
Modification Commenced
After February 23, 2022.
LL......................... Metallic Mineral X
Processing Plants.
MM......................... Automobile & Light Duty X
Truck Surface Coating
Operations for which
Construction,
Modification or
Reconstruction Commenced
After October 5, 1979,
and On or Before May 18,
2022.
MMa........................ Automobile & Light Duty X
Truck Surface Coating
Operations for which
Construction,
Modification or
Reconstruction Commenced
After May 18, 2022.
NN......................... Phosphate Manufacturing X
Plants.
PP......................... Ammonium Sulfate X
Manufacture.
QQ......................... Graphic Arts Industry: X
Publication Rotogravure
Printing.
RR......................... Pressure Sensitive Tape X
and Label Surface Coating
Operations.
SS......................... Industrial Surface X
Coating: Large Appliances.
TT......................... Metal Coil Surface Coating X
UU......................... Asphalt Processing and X
Asphalt Roofing
Manufacture.
VV......................... Equipment Leaks of VOC in X
the SOCMI Industry for
Which Construction,
Reconstruction, or
Modification Commenced
After January 5, 1981,
and On or Before November
7, 2006.
VVa........................ Equipment Leaks of VOC in X
the SOCMI Industry for
Which Construction,
Reconstruction, or
Modification Commenced
After November 7, 2006,
and On or Before April
25, 2023.
VVb........................ Equipment Leaks of VOC in No
the SOCMI Industry for
Which Construction,
Reconstruction, or
Modification Commenced
After April 25, 2023.
WW......................... Beverage Can Surface X
Coating Industry.
XX......................... Bulk Gasoline Terminals X
That Commenced
Construction,
Modification, or
Reconstruction After
December 17, 1980, and On
or Before June 10, 2022.
XXa........................ Bulk Gasoline Terminals No
That Commenced
Construction,
Modification, or
Reconstruction After June
10, 2022.
AAA........................ New Residential Wood No
Heaters.
BBB........................ Rubber Tire Manufacturing X
Industry.
CCC........................ [Reserved]................ ...............
DDD........................ Volatile Organic Compound X
(VOC) Emissions from the
Polymer Manufacturing
Industry.
EEE........................ [Reserved]................ ...............
FFF........................ Flexible Vinyl and X
Urethane Coating and
Printing.
GGG........................ Equipment Leaks of VOC in X
Petroleum Refineries for
Which Construction,
Reconstruction, or
Modification Commenced
After January 4, 1983,
and n or Before November
7, 2006.
GGGa....................... Equipment Leaks of VOC in X
Petroleum Refineries for
Which Construction,
Reconstruction, or
Modification Commenced
After November 7, 2006.
HHH........................ Synthetic Fiber Production X
III........................ VOC Emissions from the X
SOCMI Air Oxidation Unit
Processes.
IIIa....................... VOC Emissions from the No
SOCMI Air Oxidation Unit
Processes for Which
Construction,
Reconstruction, or
Modification Commenced
After April 25, 2023.
JJJ........................ Petroleum Dry Cleaners.... X
KKK........................ VOC Equipment Leaks From X
Onshore Natural Gas
Processing Plants.
LLL........................ Onshore Natural Gas X
Processing: SO2 Emissions.
MMM........................ [Reserved]................ ...............
NNN........................ VOC Emissions from SOCMI X
Distillation Operations.
NNNa....................... VOC Emissions from SOCMI No
Distillation Operations
for Which Construction,
Reconstruction, or
Modification Commenced
After April 25, 2023.
OOO........................ Nonmetallic Mineral X
Processing Plants.
PPP........................ Wool Fiberglass Insulation X
Manufacturing Plants.
QQQ........................ VOC Emissions From X
Petroleum Refinery
Wastewater Systems.
RRR........................ VOC Emissions from SOCMI X
Reactor Processes.
[[Page 59061]]
RRRa....................... VOC Emissions from SOCMI No
Reactor Processes for
Which Construction,
Reconstruction, or
Modification Commenced
After April 25, 2023.
SSS........................ Magnetic Tape Coating X
Operations.
TTT........................ Industrial Surface X
Coating: Plastic Parts
for Business Machines.
TTTa....................... Industrial Surface X
Coating: Surface Coating
of Plastic Parts for
Business Machines for
Which Construction,
Reconstruction, or
Modification Commenced
After June 21, 2022.
UUU........................ Calciners and Dryers in X
Mineral Industries.
VVV........................ Polymeric Coating of X
Supporting Substrates
Facilities.
WWW........................ Municipal Solid Waste X
Landfills.
XXX........................ Municipal Solid Waste X
Landfills that Commenced
Construction,
Reconstruction, or
Modification after July
17, 2014.
YYY-ZZZ.................... [Reserved]................ ...............
AAAA....................... Small Municipal Waste X
Combustion Units
(Construction is
Commenced After 8/30/99
or Modification/
Reconstruction is
Commenced After 6/06/
2001).
BBBB....................... Emission Guidelines and No
Compliance Times for
Small Municipal Waste
Combustion Units
Constructed On or Before
August 30, 1999.
CCCC....................... Commercial & Industrial X
Solid Waste Incineration
Units (Construction is
Commenced After 11/30/
1999 or Modification/
Reconstruction is
Commenced On or After 6/
01/2001).
DDDD....................... Emission Guidelines & No
Compliance Times for
Commercial & Industrial
Solid Waste Incineration
Units (Commenced
Construction On or Before
11/30/1999).
EEEE....................... Other Solid Waste X
Incineration Units
(Constructed after 12/09/
2004 or Modification/
Reconstruction is
commenced On or After 06/
16/2004).
FFFF....................... Emission Guidelines and No
Compliance Times for
Other Solid Waste
Incineration Units that
Commenced Construction On
or Before December 9,
2004.
GGG-HHH.................... [Reserved]................ ...............
IIII....................... Stationary Compression X
Ignition Internal
Combustion Engines.
JJJJ....................... Stationary Spark Ignition X
Internal Combustion
Engines.
KKKK....................... Stationary Combustion X
Turbines (Construction
Commenced After 02/18/
2005).
LLLL....................... New Sewage Sludge X
Incineration Units.
MMMM....................... Emission Guidelines and No
Compliance Times for
Existing Sewage Sludge
Incineration Units.
NNNN....................... [Reserved]................ ...............
OOOO....................... Crude Oil and Natural Gas X
Production, Transmission
and Distribution.
OOOOa...................... Crude Oil and Natural Gas X
Facilities for Which
Construction,
Modification or
Reconstruction Commenced
After September 18, 2015
and On or Before December
6, 2022.
OOOOb...................... Crude Oil and Natural Gas No
Facilities for Which
Construction,
Modification or
Reconstruction Commenced
After December 6, 2022.
OOOOc...................... Emissions Guidelines for No
Greenhouse Gas Emissions
from Existing Crude Oil
and Natural Gas
Facilities.
PPPP....................... [Reserved]................ ...............
QQQQ....................... New Residential Hydronic No
Heaters and Forced-Air
Furnaces.
TTTT....................... Greenhouse Gas Emissions X
for Electric Generating
Units.
TTTTa...................... Greenhouse Gas Emissions No
for Modified Coal-Fired
Steam Electric Generating
Units and New
Construction and
Reconstruction Stationary
Combustion Turbine
Electric Generating Units.
UUUUa...................... [Reserved]................ ...............
UUUUb...................... Greenhouse Gas Emissions No
for Electric Utility
Generating Units.
Appendix A................. Test Methods.............. X
Appendix B................. Performance Specifications X
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[FR Doc. 2025-23275 Filed 12-17-25; 8:45 am]
BILLING CODE 6560-50-P