Rule2025-23284
New Source Performance Standards and National Emission Standards for Hazardous Air Pollutants; Delegation of Authority to Louisiana
Primary source
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Published
December 18, 2025
Effective
January 20, 2026
Issuing agencies
Environmental Protection Agency
Abstract
The Louisiana Department of Environmental Quality (LDEQ) has submitted updated regulations for receiving delegation and approval of its program for the implementation and enforcement of certain New Source Performance Standards (NSPS) and National Emission Standards for Hazardous Air Pollutants (NESHAP) for all sources (both part 70 and non-part 70 sources), as provided for under previously approved delegation mechanisms. The updated State regulations incorporate by reference certain NSPS and NESHAP promulgated by the Environmental Protection Agency (EPA) at parts 60, 61 and 63, as they existed through July 1, 2021. The EPA is providing notice that it is taking final action to approve the delegation of certain NSPS and NESHAP to LDEQ. The delegation of authority under this action does not apply to sources located in Indian country.
Full Text
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<title>Federal Register, Volume 90 Issue 241 (Thursday, December 18, 2025)</title>
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[Federal Register Volume 90, Number 241 (Thursday, December 18, 2025)]
[Rules and Regulations]
[Pages 59061-59069]
From the Federal Register Online via the Government Publishing Office [<a href="http://www.gpo.gov">www.gpo.gov</a>]
[FR Doc No: 2025-23284]
-----------------------------------------------------------------------
ENVIRONMENTAL PROTECTION AGENCY
40 CFR Parts 60, 61, and 63
[EPA-R06-OAR-2010-1054; FRL-12688-02-R6]
New Source Performance Standards and National Emission Standards
for Hazardous Air Pollutants; Delegation of Authority to Louisiana
AGENCY: Environmental Protection Agency (EPA).
ACTION: Final rule.
-----------------------------------------------------------------------
SUMMARY: The Louisiana Department of Environmental Quality (LDEQ) has
submitted updated regulations for receiving delegation and approval of
its program for the implementation and enforcement of certain New
Source Performance Standards (NSPS) and National Emission Standards for
Hazardous Air Pollutants (NESHAP) for all sources (both part 70 and
non-part 70 sources), as provided for under previously approved
delegation mechanisms. The updated State regulations incorporate by
reference certain NSPS and NESHAP promulgated by the Environmental
Protection Agency (EPA) at parts 60, 61 and 63, as they existed through
July 1, 2021. The EPA is providing notice that it is taking final
action to approve the delegation of certain NSPS and NESHAP to LDEQ.
The delegation of authority under this action does not apply to sources
located in Indian country.
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-2010-1054. All documents in the docket are
listed on the <a href="https://www.regulations.gov">https://www.regulations.gov</a> website. Although listed in
the index, some information is not publicly available, e.g.,
Confidential Business Information (CBI) 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
[[Page 59062]]
materials are available electronically through <a href="https://www.regulations.gov">https://www.regulations.gov</a>.
FOR FURTHER INFORMATION CONTACT: Clovis Steib, EPA Region 6 Office,
Infrastructure and Ozone Section (ARSI), telephone number: 214-665-
7566, email address: <a href="/cdn-cgi/l/email-protection#a7d4d3c2cec589c4cbc8d1ced4e7c2d7c689c0c8d1"><span class="__cf_email__" data-cfemail="b6c5c2d3dfd498d5dad9c0dfc5f6d3c6d798d1d9c0">[email protected]</span></a>. Please call or email the
contact listed above if you need alternative access to material indexed
but not provided in the docket.
SUPPLEMENTARY INFORMATION: Throughout this document ``we,'' ``us,'' and
``our'' means the EPA.
I. Background
The background for this action is discussed in detail in our June
23, 2025, proposal (90 FR 26482). In that document we proposed to
approve updating the delegation of certain NSPS and NESHAP to LDEQ. The
delegation will provide LDEQ with the primary responsibility to
implement and enforce the delegated standards.
During the update of the aforementioned delegations, we identified
the need to correct certain subparts that were mistakenly included and/
or omitted in the Technical Support Document (TSD) submitted with the
proposal for this action and filed in the docket. These corrections are
the logical outgrowth from our finalization of the LDEQ's proposed
delegations for NSPS and NESHAP. They are now reflected in the
respective tables located in the amendatory language section of this
action.
II. Response to Comment
EPA received an anonymous public comment. The comment states that
administrative practice is required and necessary to achieve goals. We
thank the commenter for the comment and note administrative practices
were followed for this action. This action finalizes updates to LDEQ's
current NSPS and NESHAP delegations, following a proposed action and a
public comment period. As such, we are finalizing the NSPS and NESHAP
delegations to LDEQ as proposed.
III. Final Action
The EPA is taking final action to approve updates to the delegation
of certain NSPS to LDEQ, and to update the Louisiana NESHAP delegation
to provide the LDEQ with the authority to implement and enforce certain
newly incorporated NESHAP promulgated by the EPA and amendments to
existing standards currently delegated, as they existed through July 1,
2021.
IV. Statutory and Executive Order Reviews
Under the CAA, the Administrator has the authority to approve
delegation requests that comply with the provisions of the Act and
applicable Federal regulations. 42 U.S.C. 7411(c) and 7412(1). In
reviewing delegation submissions, the EPA's role is to approve State
choices, provided that they meet the criteria and objectives of the CAA
and of the EPA's implementing regulations. Accordingly, this action
merely approves the State's request as meeting Federal requirements and
does not impose additional requirements beyond those imposed by State
law. For that reason, this action:
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 final approval to update the delegation of certain NSPS to
LDEQ and the approval of LDEQ's request to update their NESHAP
delegation will not apply in areas of Indian Country, and therefore has
no tribal implications as specified in Executive Order 13175 (65 FR
67249, November 9, 2000). 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 Louisiana tribe implements a regulatory
program under the CAA and thus does not have applicable or related
tribal laws.
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 action implementing a
federal standard.
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 rulemaking 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.
[[Page 59063]]
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 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
40 CFR Part 60
Environmental protection, Air pollution control, Administrative
practice and procedure, Hazardous substances, Intergovernmental
relations, Reporting and recordkeeping requirements.
40 CFR Part 61
Environmental protection, Air pollution control, Hazardous
substances, Intergovernmental relations, Radioactive materials,
Reporting and recordkeeping requirements, Uranium, Vinyl chloride.
40 CFR Part 63
Environmental protection, Air pollution control, Administrative
practice and procedure, Business and industry, Carbon oxides, Hazardous
substances, Intergovernmental relations, Nitrogen oxides, Ozone,
Reporting and recordkeeping requirements, Sulfur oxides, Volatile
organic compounds.
Authority: 42 U.S.C. 7401 et seq.
Dated: December 11, 2025.
James McDonald,
Director, Air and Radiation Division, Region 6.
For the reasons stated in the preamble, the Environmental
Protection Agency amends 40 CFR parts 60, 61 and 63 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 (e)(2) to read as
follows:
Sec. 60.4 Address.
* * * * *
(e) * * *
(2) Louisiana. The Louisiana Department of Environmental Quality
has been delegated the following part 60 standards promulgated by EPA,
as amended in the Federal Register through July 1, 2021. The (X) symbol
is used to indicate each subpart that has been delegated.
Delegation Status for Part 60 Standards--State of Louisiana
[Excluding Indian Country]
------------------------------------------------------------------------
Subpart Source category LDEQ
------------------------------------------------------------------------
A.......................... General Provisions........ X
Cb......................... Emissions Guidelines and X
Compliance Times for
Large Municipal Waste
Combustors That are
Constructed on or Before
September 20, 1994.
Cc......................... Emission Guidelines and X
Compliance Times for
Municipal Solid Waste
Landfills.
Cd......................... Emissions Guidelines and X
Compliance Times for
Sulfuric Acid Production
Units.
Ce......................... Emission Guidelines and X
Compliance Times for
Hospital/Medical/
Infectious Waste
Incinerators.
Cf......................... Emission Guidelines and X
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.
[[Page 59064]]
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.
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 No
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 No
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 On 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.
[[Page 59065]]
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.
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 No
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 X
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 & X
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 X
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 X
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 X
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.
------------------------------------------------------------------------
* * * * *
PART 61--NATIONAL EMISSON STANDARDS FOR HAZARDOUS AIR POLLUTANTS
0
3. The authority citation for part 61 continues to read as follows:
Authority: 42 U.S.C. 7401 et seq.
Subpart A--General Provisions
0
4. Section 61.04 is amended by revising paragraph (c)(6)(ii) to read as
follows:
Sec. 61.04 Address.
* * * * *
(c) * * *
(6) * * *
(ii) Louisiana. The Louisiana Department of Environmental Quality
(LDEQ) has been delegated the following part 61 standards promulgated
by EPA, as amended in the Federal Register through July 1, 2021. The
(X) symbol is used to indicate each subpart that has been delegated.
[[Page 59066]]
Delegation Status for Part 61 Standards--State of Louisiana
[Excluding Indian Country]
------------------------------------------------------------------------
Subpart Source category LDEQ
------------------------------------------------------------------------
A.......................... General Provisions........ X
B.......................... Radon Emissions From No
Underground Uranium Mines.
C.......................... Beryllium................. X
D.......................... Beryllium Rocket Motor X
Firing.
E.......................... Mercury................... X
F.......................... Vinyl Chloride............ X
G.......................... [Reserved]................ ...............
H.......................... Emissions of Radionuclides No
Other Than Radon From
Department of Energy
Facilities.
I.......................... Radionuclide Emissions No
From Federal Facilities
Other Than Nuclear
Regulatory Commission
Licensees and Not Covered
by subpart H.
J.......................... Equipment Leaks (Fugitive X
Emission Sources) of
Benzene.
K.......................... Radionuclide Emissions No
From Elemental Phosphorus
Plants.
L.......................... Benzene Emissions From X
Coke By-Product Recovery
Plants.
M.......................... Asbestos.................. No
N.......................... Inorganic Arsenic X
Emissions From Glass
Manufacturing Plants.
O.......................... Inorganic Arsenic X
Emissions From Primary
Copper Smelters.
P.......................... Inorganic Arsenic X
Emissions From Arsenic
Trioxide and Metallic
Arsenic Production
Facilities.
Q.......................... Radon Emissions From No
Department of Energy
Facilities.
R.......................... Radon Emissions From No
Phosphogypsum Stacks.
S.......................... [Reserved]................ ...............
T.......................... Radon Emissions From the No
Disposal of Uranium Mill
Tailings.
U.......................... [Reserved]................ ...............
V.......................... Equipment Leaks (Fugitives X
Emission Sources).
W.......................... Radon Emissions From No
Operating Mill Tailings.
X.......................... [Reserved]................ ...............
Y.......................... Benzene Emissions From X
Benzene Storage Vessels.
Z-AA....................... [Reserved]................ ...............
BB......................... Benzene Emissions From X
Benzene Transfer
Operations.
CC-EE...................... [Reserved]................ ...............
FF......................... Benzene Waste Operations.. X
Appendix A................. Compliance Status X
Information.
Appendix B................. Test Methods.............. X
Appendix C................. Quality Assurance X
Procedures.
Appendix D................. Methods for Estimating No
Radionuclide Emissions.
Appendix E................. Compliance Procedures No
Methods for Determining
Compliance With subpart I.
------------------------------------------------------------------------
* * * * *
PART 63--NATIONAL EMISSION STANDARDS FOR HAZARDOUS AIR POLLUTANTS
FOR SOURCE CATEGORIES
0
5. The authority citation for part 63 continues to read as follows:
Authority: 42 U.S.C. 7401 et seq.
Subpart E--Approval of State Programs and Delegation of Federal
Authorities
0
6. Section 63.99 is amended by revising paragraph (a)(19)(i) to read as
follows:
Sec. 63.99 Delegated Federal authorities.
(a) * * *
(19) * * *
(i) The following table lists the specific part 63 standards that
have been delegated unchanged to the Louisiana Department of
Environmental Quality for all sources. The ``X'' symbol is used to
indicate each subpart that has been delegated. The delegations are
subject to all of the conditions and limitations set forth in Federal
law, regulations, policy, guidance, and determinations. Some
authorities cannot be delegated and are retained by EPA. These include
certain General Provisions authorities and specific parts of some
standards. Any amendments made to these rules after July 1, 2021, are
not delegated.
Delegation Status for Part 63 Standards--State of Louisiana
[Excluding Indian Country]
------------------------------------------------------------------------
Subpart Source category LDEQ \1\
------------------------------------------------------------------------
A............................... General Provisions... X
B............................... Requirements for No
Control Technology
Determinations for
Major Sources in
Accordance with
Clean Air Act
Sections, 112(g) and
112(j).
C............................... List of Hazardous Air No
Pollutants,
Petitions Process,
Lesser Quantity
Designations, Source
Category List.
D............................... Regulations Governing No
Compliance
Extensions for Early
Reductions of
Hazardous Air
Pollutants.
E............................... Approval of State No
Programs and
Delegation of
Federal Authorities.
F............................... Synthetic Organic X
Chemical
Manufacturing
Industry (SOCMI).
G............................... SOCMI for Process X
Vents, Storage
Vessels, Transfer
Operations and
Wastewater.
H............................... Equipment Leaks and X
Fenceline Monitoring
for All Emission
Sources.
[[Page 59067]]
I............................... Certain Processes X
Subject to the
Negotiated
Regulation for
Equipment Leaks.
J............................... Polyvinyl Chloride No
and Copolymers
Production.
K............................... [Reserved]........... ...............
L............................... Coke Oven Batteries.. X
M............................... Perchloroethylene Air X
Emission Standards
for Dry Cleaning
Facilities.
N............................... Chromium Emissions X
from Hard and
Decorative Chromium
Electroplating and
Chromium Anodizing
Tanks.
O............................... Ethylene Oxide X
Emissions Standards
for Sterilization
Facilities.
P............................... [Reserved]........... ...............
Q............................... Industrial Process X
Cooling Towers.
R............................... Gasoline Distribution X
Facilities (Bulk
Gasoline Terminals
and Pipeline
Breakout Sessions).
S............................... Pulp and Paper X
Industry.
T............................... Halogenated Solvent X
Cleaning.
U............................... Group I Polymers and X
Resins.
V............................... [Reserved]........... ...............
W............................... Epoxy Resins X
Production and Non-
Nylon Polyamides
Production.
X............................... Secondary Lead X
Smelting.
Y............................... Marine Tank Vessel X
Loading Operations.
Z............................... [Reserved]........... ...............
AA.............................. Phosphoric Acid X
Manufacturing Plants.
BB.............................. Phosphate Fertilizers X
Production Plants.
CC.............................. Petroleum Refineries. X
DD.............................. Off-Site Waste and X
Recovery Operations.
EE.............................. Magnetic Tape X
Manufacturing
Operations.
FF.............................. [Reserved]........... ...............
GG.............................. Aerospace X
Manufacturing and
Rework Facilities.
HH.............................. Oil and Natural Gas X
Production
Facilities.
II.............................. Shipbuilding and Ship X
Repair (Surface
Coating).
JJ.............................. Wood Furniture X
Manufacturing
Operations.
KK.............................. Printing and X
Publishing Industry.
LL.............................. Primary Aluminum X
Reduction Plants.
MM.............................. Chemical Recovery X
Combustion Sources
at Kraft, Soda,
Sulfite, and Stand-
Alone Semichemical
Pulp Mills.
NN.............................. Wool Fiberglass X
Manufacturing at
Area Sources.
OO.............................. Tanks-Level 1........ X
PP.............................. Containers........... X
QQ.............................. Surface Impoundments. X
RR.............................. Individual Drain X
Systems.
SS.............................. Closed Vent Systems, X
Control Devices,
Recovery Devices and
Routing to a Fuel
Gas System or a
Process.
TT.............................. Equipment Leaks-- X
Control Level 1.
UU.............................. Equipment Leaks-- X
Control Level 2
Standards.
VV.............................. Oil-Water Separators X
and Organic-Water
Separators.
WW.............................. Storage Vessels X
(Tanks)--Control
Level 2.
XX.............................. Ethylene X
Manufacturing
Process Units: Heat
Exchange Systems and
Waste Operations.
YY.............................. Generic Maximum X
Achievable Control
Technology Standards.
ZZ-BBB.......................... [Reserved]........... ...............
CCC............................. Steel Pickling--HCl X
Process Facilities
and Hydrochloric
Acid Regeneration
Plants.
DDD............................. Mineral Wool X
Production.
EEE............................. Hazardous Waste X
Combustors.
FFF............................. [Reserved]........... ...............
GGG............................. Pharmaceuticals X
Production.
HHH............................. Natural Gas X
Transmission and
Storage Facilities.
III............................. Flexible Polyurethane X
Foam Production.
JJJ............................. Group IV Polymers and X
Resins.
KKK............................. [Reserved]........... ...............
LLL............................. Portland Cement X
Manufacturing
Industry.
MMM............................. Pesticide Active X
Ingredient
Production.
NNN............................. Wool Fiberglass X
Manufacturing.
OOO............................. Manufacture of Amino/ X
Phenolic Resins.
PPP............................. Polyether Polyols X
Production.
QQQ............................. Primary Copper X
Smelting.
RRR............................. Secondary Aluminum X
Production.
SSS............................. [Reserved]........... ...............
TTT............................. Primary Lead Smelting X
UUU............................. Petroleum Refineries: X
Catalytic Cracking
Units, Catalytic
Reforming Units, and
Sulfur Recovery
Plants.
VVV............................. Publicly Owned X
Treatment Works.
WWW............................. [Reserved]........... ...............
XXX............................. Ferroalloys X
Production:
Ferromanganese and
Silicomanganese.
AAAA............................ Municipal Solid Waste X
Landfills.
[[Page 59068]]
BBBB............................ [Reserved]........... ...............
CCCC............................ Manufacturing of X
Nutritional Yeast.
DDDD............................ Plywood and Composite \2\ X
Wood Products.
EEEE............................ Organic Liquids X
Distribution (Non-
Gasoline).
FFFF............................ Miscellaneous Organic X
Chemical
Manufacturing.
GGGG............................ Solvent Extraction X
for Vegetable Oil
Production.
HHHH............................ Wet-Formed Fiberglass X
Mat Production.
IIII............................ Surface Coating of X
Automobiles and
Light-Duty Trucks.
JJJJ............................ Paper and other Web X
Coating.
KKKK............................ Surface Coating of X
Metal Cans.
MMMM............................ Surface Coating of X
Miscellaneous Metal
Parts and Products.
NNNN............................ Surface Coating of X
Large Appliances.
OOOO............................ Printing, Coating, X
and Dyeing of
Fabrics and Other
Textiles.
PPPP............................ Surface Coating of X
Plastic Parts and
Products.
QQQQ............................ Surface Coating of X
Wood Building
Products.
RRRR............................ Surface Coating of X
Metal Furniture.
SSSS............................ Surface Coating for X
Metal Coil.
TTTT............................ Leather Finishing X
Operations.
UUUU............................ Cellulose Products X
Manufacturing.
VVVV............................ Boat Manufacturing... X
WWWW............................ Reinforced Plastic X
Composites
Production.
XXXX............................ Rubber Tire X
Manufacturing.
YYYY............................ Stationary Combustion X
Turbines.
ZZZZ............................ Stationary X
Reciprocating
Internal Combustion
Engines.
AAAAA........................... Lime Manufacturing X
Plants.
BBBBB........................... Semiconductor X
Manufacturing.
CCCCC........................... Coke Ovens: Pushing, X
Quenching and
Battery Stacks.
DDDDD........................... Industrial, No
Commercial, and
Institutional
Boilers and Process
Heaters.
EEEEE........................... Iron and Steel X
Foundries.
FFFFF........................... Integrated Iron and X
Steel Manufacturing
Facilities.
GGGGG........................... Site Remediation..... X
HHHHH........................... Miscellaneous Coating X
Manufacturing.
IIIII........................... Mercury Cell Chlor- X
Alkali Plants.
JJJJJ........................... Brick and Structural X
Clay Products
Manufacturing.
KKKKK........................... Clay Ceramics X
Manufacturing.
LLLLL........................... Asphalt Processing X
and Asphalt Roofing
Manufacturing.
MMMMM........................... Flexible Polyurethane X
Foam Fabrication
Operation.
NNNNN........................... Hydrochloric Acid X
Production.
OOOOO........................... [Reserved]........... ...............
PPPPP........................... Engine Test Cells/ X
Stands.
QQQQQ........................... Friction Materials X
Manufacturing
Facilities.
RRRRR........................... Taconite Iron Ore X
Processing.
SSSSS........................... Refractory Products X
Manufacturing.
TTTTT........................... Primary Magnesium X
Refining.
UUUUU........................... Coal and Oil-Fired \3\ X
Electric Utility
Steam Generating
Units.
VVVVV........................... [Reserved]........... ...............
WWWWW........................... Hospital Ethylene X
Oxide Sterilizers.
XXXXX........................... [Reserved]........... ...............
YYYYY........................... Area Sources: X
Electric Arc Furnace
Steelmaking Sources.
ZZZZZ........................... Iron and Steel X
Foundries Area
Sources.
AAAAAA.......................... [Reserved]........... ...............
BBBBBB.......................... Gasoline Distribution X
Bulk Terminals, Bulk
Plants, and Pipeline
Facilities.
CCCCCC.......................... Gasoline Dispensing X
Facilities.
DDDDDD.......................... Polyvinyl Chloride X
and Copolymers
Production Area
Sources.
EEEEEE.......................... Primary Copper X
Smelting Area
Sources.
FFFFFF.......................... Secondary Copper X
Smelting Area
Sources.
GGGGGG.......................... Primary Nonferrous X
Metals Area Sources:
Zinc, Cadmium, and
Beryllium.
HHHHHH.......................... Paint Stripping and X
Miscellaneous
Surface Coating
Operations at Area
Sources.
IIIIII.......................... [Reserved]........... ...............
JJJJJJ.......................... Industrial, X
Commercial, and
Institutional
Boilers Area Sources.
KKKKKK.......................... [Reserved]........... ...............
LLLLLL.......................... Acrylic and X
Modacrylic Fibers
Production Area
Sources.
MMMMMM.......................... Carbon Black X
Production Area
Sources.
NNNNNN.......................... Chemical X
Manufacturing Area
Sources: Chromium
Compounds.
OOOOOO.......................... Flexible Polyurethane X
Foam Production and
Fabrication Area
Sources.
PPPPPP.......................... Lead Acid Battery X
Manufacturing Area
Sources.
QQQQQQ.......................... Wood Preserving Area X
Sources.
RRRRRR.......................... Clay Ceramics X
Manufacturing Area
Sources.
SSSSSS.......................... Glass Manufacturing X
Area Sources.
TTTTTT.......................... Secondary Nonferrous X
Metals Processing
Area Sources.
UUUUUU.......................... [Reserved]........... ...............
[[Page 59069]]
VVVVVV.......................... Chemical X
Manufacturing Area
Sources.
WWWWWW.......................... Area Source Standards X
for Plating and
Polishing Operations.
XXXXXX.......................... Area Source Standards X
for Nine Metal
Fabrication and
Finishing Source
Categories.
YYYYYY.......................... Area Sources: X
Ferroalloys
Production
Facilities.
ZZZZZZ.......................... Area Source Standards X
for Aluminum,
Copper, and Other
Nonferrous Foundries.
AAAAAAA......................... Area Sources: Asphalt X
Processing and
Asphalt Roofing
Manufacturing.
BBBBBBB......................... Area Sources: X
Chemical Preparation
Industry.
CCCCCCC......................... Area Sources: Paints X
and Allied Products
Manufacturing.
DDDDDDD......................... Prepared Feeds Areas X
Sources.
EEEEEEE......................... Gold Mine Ore X
Processing and
Production Area
Source Category.
FFFFFFF-GGGGGGG................. [Reserved]........... ...............
HHHHHHH......................... Polyvinyl Chloride X
and Copolymers
Production Major
Sources.
Appendix A...................... Test Methods......... X
Appendix B...................... Sources Defined by X
Rarely Reduction
Provisions.
Appendix C...................... Determination of the X
Fraction Biodegraded
(Fbio) in a
Biological Treatment
Unit.
Appendix D...................... Alternative X
Validation Procedure
for EPA Waste and
Wastewater Methods.
Appendix E...................... Monitoring Procedure X
for Nonthoroughly
Mixed Open
Biological Treatment
Systems at Kraft
Pulp Mills Under
Unsafe Sampling
Conditions.
------------------------------------------------------------------------
\1\ Authorities which may not be delegated include: Sec. 63.6(g),
Approval of Alternative Non-Opacity Emission Standards; Sec.
63.6(h)(9), Approval of Alternative Opacity Standards; Sec.
63.7(e)(2)(ii) and (f), Approval of Major Alternatives to Test
Methods; Sec. 63.8(f), Approval of Major Alternatives to Monitoring;
Sec. 63.10(f), Approval of Major Alternatives to Recordkeeping and
Reporting; and all authorities identified in the subparts (e.g., under
``Delegation of Authority'') that cannot be delegated.
\2\ This subpart was issued a partial vacatur by the United States Court
of Appeals for the District of Columbia Circuit. See 72 FR 61060
(October 29, 2007).
\3\ Final Rule. See 77 FR 9304 (February 16, 2012), as amended 81
FR20172 (April 6, 2016) Final Supplemental Finding that it is
appropriate and necessary to regulate HAP emissions from Coal- and Oil-
fired EUSGU Units. See 81 FR 24420 (April 25, 2016).
* * * * *
[FR Doc. 2025-23284 Filed 12-17-25; 8:45 am]
BILLING CODE 6560-50-P
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</html>Indexed from Federal Register on December 18, 2025.
This is legal information, not legal advice. Laws vary by jurisdiction and change frequently. Always verify current law with official sources and consult a licensed attorney in your jurisdiction for advice on your specific situation.