Proposed Rule2025-11341

New Source Performance Standards and National Emission Standards for Hazardous Air Pollutants; Delegation of Authority to Louisiana

Primary source

Metadata and text below are from the Federal Register, a public-domain U.S. government work. Always verify the official published version before relying on it for any legal matter.

Published
June 23, 2025

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, 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), as they existed through July 1, 2021. EPA is providing notice that it is updating the delegation of certain NSPS to LDEQ and proposing to approve the delegation of certain NESHAP to LDEQ. The proposed 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 118 (Monday, June 23, 2025)</title>
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[Federal Register Volume 90, Number 118 (Monday, June 23, 2025)]
[Proposed Rules]
[Pages 26482-26486]
From the Federal Register Online via the Government Publishing Office [<a href="http://www.gpo.gov">www.gpo.gov</a>]
[FR Doc No: 2025-11341]


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ENVIRONMENTAL PROTECTION AGENCY

40 CFR Parts 60, 61 and 63

[EPA-R06-OAR-2010-1054; FRL-12688-01-R6]


New Source Performance Standards and National Emission Standards 
for Hazardous Air Pollutants; Delegation of Authority to Louisiana

AGENCY: Environmental Protection Agency (EPA).

ACTION: Proposed rule.

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SUMMARY: The Louisiana Department of Environmental Quality (LDEQ) has

[[Page 26483]]

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, 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), as they 
existed through July 1, 2021. EPA is providing notice that it is 
updating the delegation of certain NSPS to LDEQ and proposing to 
approve the delegation of certain NESHAP to LDEQ. The proposed 
delegation of authority under this action does not apply to sources 
located in Indian country.

DATES: Written comments on this proposed rule must be received on or 
before July 23, 2025.

ADDRESSES: Submit your comments, identified by Docket ID No. EPA-R06-
OAR-2010-1054, at <a href="https://www.regulations.gov">https://www.regulations.gov</a> or via email to 
<a href="/cdn-cgi/l/email-protection#89ebe8fbfbecfdfda7fbe0eae1e8fbedc9ecf9e8a7eee6ff"><span class="__cf_email__" data-cfemail="33515241415647471d415a505b524157735643521d545c45">[email&#160;protected]</span></a>. Follow the online instructions for submitting 
comments. Once submitted, comments cannot be edited or removed from 
<a href="http://Regulations.gov">Regulations.gov</a>. 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. 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 Rick Barrett, 214-665-
7227, <a href="/cdn-cgi/l/email-protection#20424152524554540e52494348415244604550410e474f56"><span class="__cf_email__" data-cfemail="33515241415647471d415a505b524157735643521d545c45">[email&#160;protected]</span></a>. For the full EPA public comment policy, 
information about CBI or multimedia submissions, and general guidance 
on making effective comments, please visit <a href="https://www.epa.gov/dockets/commenting-epa-dockets">https://www.epa.gov/dockets/commenting-epa-dockets</a>.
    Docket: The index to the docket for this action is available 
electronically at <a href="http://www.regulations.gov">www.regulations.gov</a>. While all documents in the 
docket are listed in the index, some information may not be publicly 
available due to docket file size restrictions or content (e.g., CBI).

FOR FURTHER INFORMATION CONTACT: Rick Barrett, EPA Region 6 Office, 
ARPE, (214) 665-7227, <a href="/cdn-cgi/l/email-protection#187a796a6a7d6c6c366a717b70796a7c587d6879367f776e"><span class="__cf_email__" data-cfemail="e88a899a9a8d9c9cc69a818b80899a8ca88d9889c68f879e">[email&#160;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 wherever ``we,'' 
``us,'' or ``our'' is used, we mean the EPA.

Table of Contents

I. What does this action do?
II. What is the authority for delegation?
III. What criteria must Louisiana's programs meet to be approved?
IV. How did LDEQ meet the NSPS and NESHAP program approval criteria?
V. What is being delegated?
VI. What is not being delegated?
VII. How will statutory and regulatory interpretations be made?
VIII. What authority does the EPA have?
IX. What information must LDEQ provide to the EPA?
X. What is the EPA's oversight role?
XI. Should sources submit notices to the EPA or LDEQ?
XII. How will unchanged authorities be delegated to LDEQ in the 
future?
XIII. Proposed Action
XIV. Statutory and Executive Order Reviews

I. What does this action do?

    The EPA is updating the delegation of the implementation and 
enforcement of certain NSPS to LDEQ. EPA is also proposing to approve 
the delegation of the implementation and enforcement of certain NESHAP 
to LDEQ. If finalized, the delegation will provide LDEQ with the 
primary responsibility to implement and enforce the delegated 
standards.

II. What is the authority for delegation?

    Section 111(c)(1) of the Clean Air Act (CAA) authorizes EPA to 
delegate authority to any State agency which submits adequate 
regulatory procedures for implementation and enforcement of the NSPS 
program. The NSPS standards are codified at 40 CFR part 60.
    Section 112(l) of the Clean Air Act (CAA), and 40 CFR part 63, 
subpart E, authorize the EPA to delegate authority to any State or 
local agency which submits adequate regulatory procedures for 
implementation and enforcement of emission standards for hazardous air 
pollutants. The hazardous air pollutant standards are codified at 40 
CFR parts 61 and 63.

III. What criteria must Louisiana's programs meet to be approved?

    In order to receive delegation of NSPS, a State must develop and 
submit to the EPA a procedure for implementing and enforcing the NSPS 
in the State, and their regulations and resources must be adequate for 
the implementation and enforcement of the NSPS. EPA initially approved 
Louisiana's program for the delegation of NSPS on February 22, 1982 (47 
FR 7665). EPA reviewed the laws of the State and the rules and 
regulations of the Louisiana Department of Natural Resources (now the 
LDEQ) and determined the State's procedures, regulations and resources 
adequate for the implementation and enforcement of the NSPS program. 
This action notifies the public that EPA is updating LDEQ's delegation 
to implement and enforce certain additional NSPS.
    As to the NESHAP standards in 40 CFR parts 61 and 63, Section 
112(l)(5) of the CAA requires the EPA to disapprove any program 
submitted by a State for the delegation of NESHAP standards if the EPA 
determines that:
    (A) the authorities contained in the program are not adequate to 
assure compliance by the sources within the State with respect to each 
applicable standard, regulation, or requirement established under 
section 112;
    (B) adequate authority does not exist, or adequate resources are 
not available, to implement the program;
    (C) the schedule for implementing the program and assuring 
compliance by affected sources is not sufficiently expeditious; or
    (D) the program is otherwise not in compliance with the guidance 
issued by the EPA under section 112(l)(2) or is not likely to satisfy, 
in whole or in part, the objectives of the CAA.
    In carrying out its responsibilities under section 112(l), the EPA 
promulgated regulations at 40 CFR part 63, subpart E, setting forth 
criteria for the approval of submitted programs. For example, in order 
to obtain approval of a program to implement and enforce Federal 
section 112 rules as promulgated without changes (straight delegation) 
for part 70 sources, a State must demonstrate that it meets the 
criteria of 40 CFR 63.91(d). 40 CFR 63.91(d)(3) provides that interim 
or final Title V program approval will satisfy the criteria of 40 CFR 
63.91(d).\1\ The NESHAP delegation for Louisiana, as it applies to both 
part 70 and non-part 70 sources, was most recently approved on February 
24, 2015 (80 FR 9613).
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    \1\ Some NESHAP standards do not require a source to obtain a 
Title V permit (e.g., certain area sources that are exempt from the 
requirement to obtain a Title V permit). For these non-Title V 
sources, the EPA believes that the State must assure the EPA that it 
can implement and enforce the NESHAP for such sources. See 65 FR 
55810, 55813 (September 14, 2000). The EPA previously approved 
Louisiana's program to implement and enforce the NESHAP as they 
apply to non-part 70 sources. See 69 FR 15687 (March 26, 2004).

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[[Page 26484]]

IV. How did LDEQ meet the NSPS and NESHAP program approval criteria?

    As to the NSPS standards in 40 CFR part 60, LDEQ adopted the 
Federal standards via incorporation by reference. The LDEQ regulations 
are, therefore, at least as stringent as EPA's rules. See 40 CFR 
60.10(a). Also, in the EPA initial approval of NSPS delegation, we 
determined that the State developed procedures for implementing and 
enforcing the NSPS in the State, and that the State's regulations and 
resources are adequate for the implementation and enforcement of the 
NSPS program. See 47 FR 7665 (February 22, 1982).
    As to the NESHAP standards in 40 CFR parts 61 and 63, as part of 
its Title V submission LDEQ stated that it intended to use the 
mechanism of incorporation by reference to adopt unchanged Federal 
section 112 standards into its regulations. This commitment applied to 
both existing and future standards as they applied to part 70 sources. 
The EPA's final interim approval of Louisiana's Title V operating 
permits program delegated the authority to implement certain NESHAP to 
the State. See 60 FR 17750 (April 7, 1995). EPA promulgated final full 
approval of the State's operating permits program, on September 12, 
1995. See 60 FR 47296. These interim and final Title V program 
approvals satisfy the up-front approval criteria of 40 CFR 63.91(d). 
Under 40 CFR 63.91(d)(2), once a State has satisfied up-front approval 
criteria, it needs only to reference the previous demonstration and 
reaffirm that it still meets the criteria for any subsequent submittals 
for delegation of the section 112 standards. LDEQ has affirmed that it 
still meets the up-front approval criteria. With respect to non-part 70 
sources, the EPA has previously approved delegation of NESHAP 
authorities to LDEQ after finding adequate authorities to implement and 
enforce the NESHAP for such sources. See 69 FR 15687 (March 26, 2004).

V. What is being delegated?

    By letter dated September 9, 2022, the EPA received a request from 
LDEQ to update its existing NSPS and NESHAP delegations. With certain 
exceptions noted in section VI of this document, LDEQ's request 
included NSPS in 40 CFR part 60, and NESHAP in 40 CFR parts 61 and 63. 
LDEQ's request included newly incorporated NSPS and NESHAP promulgated 
by the EPA and amendments to existing standards currently delegated, as 
amended between July 1, 2013, and July 1, 2021, as adopted by the 
State.

VI. What is not being delegated?

    The following part 60, 61 and 63 authorities listed below are not 
delegated. All of the inquiries and requests concerning implementation 
and enforcement of the excluded standards in the State of Louisiana 
should be directed to the EPA Region 6 Office.
    <bullet> 40 CFR part 60, subpart AAA (Standards of Performance for 
New Residential Wood Heaters);
    <bullet> 40 CFR part 61, subpart B (National Emission Standards for 
Radon Emissions from Underground Uranium Mines);
    <bullet> 40 CFR part 61, subpart H (National Emission Standards for 
Emissions of Radionuclides Other Than Radon From Department of Energy 
Facilities);
    <bullet> 40 CFR part 61, subpart I (National Emission Standards for 
Radionuclide Emissions from Federal Facilities Other Than Nuclear 
Regulatory Commission Licensees and Not Covered by Subpart H);
    <bullet> 40 CFR part 61, subpart K (National Emission Standards for 
Radionuclide Emissions from Elemental Phosphorus Plants);
    <bullet> 40 CFR part 61, subpart Q (National Emission Standards for 
Radon Emissions from Department of Energy facilities);
    <bullet> 40 CFR part 61, subpart R (National Emission Standards for 
Radon Emissions from Phosphogypsum Stacks);
    <bullet> 40 CFR part 61, subpart T (National Emission Standards for 
Radon Emissions from the Disposal of Uranium Mill Tailings); and
    <bullet> 40 CFR part 61, subpart W (National Emission Standards for 
Radon Emissions from Operating Mill Tailings).
    In addition, the EPA regulations provide that we cannot delegate to 
a State any of the Category II Subpart A authorities set forth in 40 
CFR 63.91(g)(2). These include the following provisions: Sec.  63.6(g), 
Approval of Alternative Non-Opacity 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; and Sec.  63.10(f), 
Approval of Major Alternatives to Recordkeeping and Reporting. Also, 
some parts 61 and 63 standards have certain provisions that cannot be 
delegated to the States. Furthermore, no authorities are delegated that 
require rulemaking in the Federal Register to implement, or where 
Federal overview is the only way to ensure national consistency in the 
application of the standards or requirements of CAA section 112. 
Finally, this action does not propose delegation of any authority under 
section 112(r), the accidental release program.
    If this action is finalized as proposed, all questions concerning 
implementation and enforcement of the excluded standards in the State 
of Louisiana should be directed to the EPA Region 6 Office.
    The EPA is proposing a determination that the NESHAP program 
submitted by Louisiana meets the applicable requirements of CAA section 
112(l)(5) and 40 CFR part 63, subpart E.
    In addition, this delegation to LDEQ to implement and enforce 
certain NSPS and NESHAP does not extend to sources or activities 
located in Indian country, as defined in 18 U.S.C. 1151. Under this 
definition, EPA treats as reservations, trust lands validly set aside 
for the use of a Tribe even if the trust lands have not been formally 
designated as a reservation. Consistent with previous federal program 
approvals or delegations, EPA will continue to implement the NSPS and 
NESHAP in Indian country because LDEQ has not submitted information to 
demonstrate authority over sources and activities located within the 
exterior boundaries of Indian reservations and other areas in Indian 
country.

VII. How will statutory and regulatory interpretations be made?

    If this NSPS delegation update is finalized as proposed, LDEQ will 
obtain concurrence from the EPA on any matter involving the 
interpretation of section 111 of the CAA or 40 CFR part 60 to the 
extent that application, implementation, administration, or enforcement 
of these sections have not been covered by prior EPA determinations or 
guidance.
    If this NESHAP delegation update is finalized as proposed, LDEQ 
will obtain concurrence from the EPA on any matter involving the 
interpretation of section 112 of the CAA or 40 CFR parts 61 and 63 to 
the extent that application, implementation, administration, or 
enforcement of these provisions have not been covered by prior EPA 
determinations or guidance.

VIII. What authority does the EPA have?

    We retain the right, as provided by CAA section 111(c)(2), to 
enforce any applicable emission standard or requirement under section 
111.
    We retain the right, as provided by CAA section 112(l)(7) and 40 
CFR 63.90(d)(2), to enforce any applicable

[[Page 26485]]

emission standard or requirement under section 112. In addition, the 
EPA may enforce any federally approved State rule, requirement, or 
program under 40 CFR 63.90(e) and 63.91(c)(1)(i). The EPA also has the 
authority to make certain decisions under the General Provisions 
(subpart A) of parts 61 and 63. We are proposing to delegate to the 
LDEQ some of these authorities, and retaining others, as explained in 
sections V and VI above. In addition, the EPA may review and disapprove 
State determinations and subsequently require corrections. See 40 CFR 
63.91(g)(1)(ii). The EPA also has the authority to review LDEQ's 
implementation and enforcement of approved rules or programs and to 
withdraw approval if we find inadequate implementation or enforcement. 
See 40 CFR 63.96.
    Furthermore, we retain the authority in an individual emission 
standard that may not be delegated according to provisions of the 
standard. Finally, we retain the authorities stated in the original 
delegation agreement. See 47 FR 7665 (February 22, 1982). A table of 
currently delegated NSPS and NESHAP standards and how the updated NSPS 
and NESHAP delegations would look if this proposal is finalized may be 
found in the Technical Support Document (TSD) included in the docket 
for this action. The tables also show the authorities that cannot be 
delegated to any State or local agency.

IX. What information must LDEQ provide to the EPA?

    Under 40 CFR 60.4(b), all notifications under NSPS must be sent to 
both EPA and to LDEQ. Notifications and reports should be sent to 
Manager, Air Enforcement Branch, at the EPA Region 6 office.
    LDEQ must provide any additional compliance related information to 
the EPA, Region 6, Office of Enforcement and Compliance Assurance, 
within 45 days of a request under 40 CFR 63.96(a). Under 40 CFR. 
63.91(g)(1), Louisiana may request delegation any of the authorities 
listed as Category I in 40 CFR. 63.91(g)(1)(i), and EPA will delegate 
any such authorities at its discretion. The State must maintain a 
record of all approved alternatives to all monitoring, testing, 
recordkeeping, and reporting requirements and provide this list of 
alternatives to its EPA Regional Office at least semi-annually, or on a 
more frequent basis if requested by the Regional Office. See 40 CFR. 
63.91(g)(1)(ii).

X. What is the EPA's oversight role?

    The EPA must oversee LDEQ's decisions to ensure the delegated 
authorities are being adequately implemented and enforced. We will 
integrate oversight of the delegated authorities into the existing 
mechanisms and resources for oversight currently in place. If, during 
oversight, we determine that LDEQ has made decisions that decrease the 
stringency of the delegated standards, then LDEQ shall be required to 
take corrective actions and the source(s) affected by the decisions 
will be notified, as required by and under the procedures set forth at 
40 CFR 63.96(b). We will initiate withdrawal proceedings of the program 
or rule under 40 CFR 63.96(b) if the corrective actions taken are 
insufficient.

XI. Should sources submit notices to the EPA or LDEQ?

    For the delegated NSPS and NESHAP standards and authorities covered 
by this proposed action, if finalized, sources would submit all of the 
information required pursuant to the general provisions and the 
relevant subpart(s) of the delegated NSPS and NESHAP (40 CFR parts 60, 
61 and 63) directly via electronic submittal to online EPA database 
portals that are specified in each rule, and also as paper submittals 
to the LDEQ at the following address: Louisiana Department of 
Environmental Quality, P.O. Box 4301, Baton Rouge, Louisiana 70821-
4301. The LDEQ is the primary point of contact with respect to 
delegated NSPS and NESHAP. The EPA Region 6 proposes to waive the 
requirement that courtesy notifications and reports for delegated 
standards be submitted to the EPA in addition to LDEQ in accordance 
with 40 CFR 63.9(a)(4)(ii) and 63.10(a)(4)(ii).\2\ For those standards 
and authorities not delegated as discussed above, sources must continue 
to submit all appropriate information to the EPA by electronic database 
portals.
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    \2\ This waiver only extends to the submission of copies of 
notifications and reports; the EPA does not waive the requirements 
in delegated standards that require notifications and reports be 
submitted to an electronic database (e.g., 40 CFR part 63, subpart 
HHHHHHH).
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XII. How will unchanged authorities be delegated to LDEQ in the future?

    In the future, LDEQ will only need to send a letter of request to 
update their delegation to EPA, Region 6, for those NSPS which they 
have adopted by reference. EPA will amend the relevant portions of the 
Code of Federal Regulations showing which NSPS standards have been 
delegated to LDEQ. Also, in the future, LDEQ will only need to send a 
letter of request for approval to EPA, Region 6, for those specific 
NESHAP regulations that LDEQ has incorporated by reference into State 
rules. The letter must reference the previous up-front approval 
demonstration and reaffirm that it still meets the up-front approval 
criteria. We will respond in writing to the request stating that the 
request for delegation is either granted or denied. A Federal Register 
action will be published to inform the public and affected sources of 
the delegation, indicate where source notifications and reports should 
be sent, and to amend the relevant portions of the Code of Federal 
Regulations showing which NESHAP standards have been delegated to LDEQ.

XIII. Proposed Action

    In this action, the EPA is proposing to update the delegation of 
certain NSPS to LDEQ, and to approve an update to the Louisiana NESHAP 
delegation that would 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 though July 1, 2021.

XIV. Statutory and Executive Order Reviews

    Under the CAA, the Administrator has the authority to approve 
section 112(l) submissions that comply with the provisions of the Act 
and applicable Federal regulations. In reviewing section 112(l) 
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 proposed action would 
merely approve the State's request as meeting Federal requirements and 
does not impose additional requirements beyond those imposed by State 
law. For that reason, this proposed 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.

[[Page 26486]]

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 impose an 
information collection burden.

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 proposes to approve 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 proposal to update the delegation of certain NSPS to LDEQ and 
to approve 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 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 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.

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: June 11, 2025.
James McDonald,
Director, Air and Radiation Division, Region 6.
[FR Doc. 2025-11341 Filed 6-20-25; 8:45 am]
BILLING CODE 6560-50-P


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Indexed from Federal Register on June 23, 2025.

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