Proposed Rule2025-07259
Air Plan Approval; Missouri; Removal of Obsolete Rules on Control of NOX Emissions
Primary source
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Published
April 29, 2025
Issuing agencies
Environmental Protection Agency
Abstract
The Environmental Protection Agency (EPA) is proposing approval of a State Implementation Plan (SIP) revision submitted by the Missouri Department of Natural Resources (MoDNR) on November 14, 2018. MoDNR requests that the EPA remove from its SIP two rules related to control of emissions of nitrogen oxides (NO<INF>X</INF>). One of the rules previously applied to electricity generating units (EGUs) and certain non-EGUs in a portion of the state and the other rule previously applied to EGUs throughout the entire state. The EPA has already approved a SIP revision that included provisions to sunset the two rules, and removal of the now-sunsetted rules from the SIP would not have an adverse effect on air quality. The EPA's proposed approval of this rule revision is being done in accordance with the requirements of the Clean Air Act (CAA).
Full Text
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<title>Federal Register, Volume 90 Issue 81 (Tuesday, April 29, 2025)</title>
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[Federal Register Volume 90, Number 81 (Tuesday, April 29, 2025)]
[Proposed Rules]
[Pages 17751-17755]
From the Federal Register Online via the Government Publishing Office [<a href="http://www.gpo.gov">www.gpo.gov</a>]
[FR Doc No: 2025-07259]
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ENVIRONMENTAL PROTECTION AGENCY
40 CFR Part 52
[EPA-R07-OAR-2025-0138; FRL-12693-01-R7]
Air Plan Approval; Missouri; Removal of Obsolete Rules on Control
of NOX Emissions
AGENCY: Environmental Protection Agency (EPA).
ACTION: Proposed rule.
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SUMMARY: The Environmental Protection Agency (EPA) is proposing
approval of a State Implementation Plan (SIP) revision submitted by the
Missouri Department of Natural Resources (MoDNR) on November 14, 2018.
MoDNR requests that the EPA remove from its SIP two rules related to
control of emissions of nitrogen oxides (NO<INF>X</INF>). One of the
rules previously applied to electricity generating units (EGUs) and
certain non-EGUs in a portion of the state and the other rule
previously applied to EGUs throughout the entire state. The EPA has
already approved a SIP revision that included provisions to sunset the
two rules, and removal of the now-sunsetted rules from the SIP would
not have an adverse effect on air quality. The EPA's proposed approval
of this rule revision is being done in accordance with the requirements
of the Clean Air Act (CAA).
DATES: Comments must be received on or before May 29, 2025.
[[Page 17752]]
ADDRESSES: You may send comments, identified by Docket ID No. EPA-R07-
OAR-2025-0138 to https:/www.regulations.gov. Follow the online
instructions for submitting comments.
Instructions: All submissions received must include the Docket ID
No. for this rulemaking. Comments received will be posted without
change to <a href="https://www.regulations.gov">https://www.regulations.gov</a>, including any personal
information provided. For detailed instructions on sending comments and
additional information on the rulemaking process, see the ``Written
Comments'' heading of the SUPPLEMENTARY INFORMATION section of this
document.
FOR FURTHER INFORMATION CONTACT: William Stone, Environmental
Protection Agency, Region 7 Office, Air Permitting and Planning Branch,
11201 Renner Boulevard, Lenexa, Kansas 66219; telephone number: (913)
551-7714; email address: <a href="/cdn-cgi/l/email-protection#3241465d5c571c455b5e5e5b535f725742531c555d44"><span class="__cf_email__" data-cfemail="afdcdbc0c1ca81d8c6c3c3c6cec2efcadfce81c8c0d9">[email protected]</span></a>.
SUPPLEMENTARY INFORMATION: Throughout this document ``we,'' ``us,'' and
``our'' refer to the EPA.
Table of Contents
I. Written Comments.
II. What is being addressed in this document?
III. Have the requirements for approval of a SIP revision been met?
IV. What action is the EPA taking?
V. Incorporation by reference.
VI. Statutory and Executive Order Reviews.
I. Written Comments
Submit your comments, identified by Docket ID No. EPA-R07-OAR-2025-
0138, at <a href="https://www.regulations.gov">https://www.regulations.gov</a>. Once submitted, comments cannot
be edited or removed from <a href="http://egulations.gov">egulations.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, 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>.
II. What is being addressed in this document?
The EPA is proposing to approve the removal of 10 Code of State
Regulations (CSR) 10-6.360, Control of NO<INF>x</INF> Emissions From
Electric Generating Units and Non-Electric Generating Boilers (referred
to here as the Missouri NBTP Rule), and 10 CSR 10-6.350, Emission
Limitations and Emissions Trading of Oxides of Nitrogen (referred to
here as the Missouri EGU Emission Rate Rule), from the Missouri SIP.
A. Background on the Missouri NBTP Rule
In 1998, the EPA issued the NO<INF>X</INF> SIP Call to address
interstate ozone pollution for the 1979 and 1997 ozone national ambient
air quality standards (NAAQS). 63 FR 57356 (October 27, 1998). As
applied to Missouri after amendments, the NO<INF>X</INF> SIP Call
required the state to address interstate ozone pollution for the 1979
ozone NAAQS by revising its SIP to reduce NO<INF>X</INF> emissions in
the eastern one-third of the state during the May-September ``ozone
season'' starting in 2007. 69 FR 21604 (April 21, 2004). The
NO<INF>X</INF> SIP Call included a model state rule for the
NO<INF>X</INF> Budget Trading Program (NBTP), an interstate cap-and-
trade program for seasonal NO<INF>X</INF> emissions. The NBTP was
designed to cover existing and new EGUs over 25 MW (large EGUs) and
existing and new non-EGU boilers and combustion turbines with maximum
design heat input over 250 mmBtu/hr (large non-EGUs). States could meet
most of their NO<INF>X</INF> SIP Call obligations by revising their
SIPs to include state rules that required these sources to participate
in the NBTP.
Missouri adopted the Missouri NBTP Rule in 2005 as part of the
state's plan to address its NO<INF>X</INF> SIP Call obligations. The
rule applied only in the eastern one-third of the state, where existing
and new large EGUs and existing large non-EGUs were required to
participate in the NBTP starting in 2007. Contrary to NBTP
requirements, the rule's applicability provisions did not cover new
large non-EGUs, but the EPA nevertheless approved the rule into the
state's SIP in 2006. 71 FR 46860 (August 15, 2006); see also 71 FR
32291, 32296-97 (June 5, 2006) (discussing the EPA's reasons for
proposing approval despite the rule's omission of new large non-EGUs).
In 2005, the EPA issued the Clean Air Interstate Rule (CAIR)
addressing interstate ozone pollution for the 1997 ozone NAAQS and
interstate fine particulate matter (PM<INF>2.5</INF>) pollution for the
1997 PM<INF>2.5</INF> NAAQS. 70 FR 25162, May 12, 2005; see also 71 FR
25328 (April 28, 2006) (CAIR backstop Federal Implementation Plans
(FIPs)). As applied to Missouri, CAIR's ozone-related provisions
required the state to revise its SIP to reduce seasonal NO<INF>X</INF>
emissions statewide starting in 2009. CAIR included a model state rule
for the CAIR NO<INF>X</INF> Ozone Season Trading Program (the CAIR OS
trading program), a new interstate cap-and-trade program that was
designed to replace the NBTP starting with the 2009 ozone season. While
CAIR called for the EPA to stop carrying out its functions
administering the NBTP after the 2008 ozone season, the states'
NO<INF>X</INF> SIP Call obligations remained in effect and had to be
met through other compliance mechanisms. See 40 CFR 51.121(r). By
default, the CAIR OS trading program applied only to existing and new
large EGUs, but states covered by the NOx SIP Call could elect to also
include their existing and new large non-EGUs, making it possible for
the states to use the CAIR OS trading program as the compliance
mechanism for meeting their ongoing NO<INF>X</INF> SIP Call obligations
as to both large EGUs and large non-EGUs.
Missouri adopted 10 CSR 10-6.364, Clean Air Interstate Rule
Seasonal NO<INF>X</INF> Trading Program (referred to here as the
Missouri CAIR OS Rule), in 2007. The rule required existing and new
large EGUs throughout the state and existing and new large non-EGUs in
the eastern one-third of the state to participate in the CAIR OS
trading program, thereby addressing both the state's ozone-related CAIR
obligations and the state's ongoing NO<INF>X</INF> SIP Call obligations
as to both large EGUs and large non-EGUs. The Missouri CAIR OS Rule
applied to all the sources covered by the Missouri NBTP Rule (and to
additional sources) and established similarly structured but generally
more stringent requirements. Accordingly, to avoid duplicative
requirements, when adopting the Missouri CAIR OS Rule the state also
amended the Missouri NBTP Rule to sunset its implementation when
implementation of the Missouri CAIR OS Rule began. The EPA approved the
Missouri CAIR OS Rule and the amendments sunsetting the Missouri NBTP
Rule into the state's SIP in 2007 and 2008, respectively. 72 FR 71073
(December 14, 2007); 73 FR 17890 (April 2, 2008).
CAIR was remanded to the EPA for replacement in 2008. North
Carolina v. EPA, 531 F.3d 896 (D.C. Cir. 2008), modified on rehearing,
550 F.3d 1176 (D.C. Cir. 2008). In response to the remand, in 2011 the
EPA issued the Cross-State Air Pollution Rule (CSAPR) addressing
interstate ozone pollution for
[[Page 17753]]
the 1997 ozone NAAQS and interstate PM<INF>2.5</INF> pollution for the
1997 and 2006 PM<INF>2.5</INF> NAAQS. 76 FR 48208 (August 8, 2011). As
applied to Missouri after amendments, CSAPR's ozone-related provisions
required the state's large EGUs to reduce seasonal NO<INF>X</INF>
emissions statewide starting in 2015 by participating in the CSAPR
NO<INF>X</INF> Ozone Season Trading Program (the CSAPR OS trading
program), a new interstate cap-and-trade program designed to replace
the CAIR OS trading program. CSAPR as amended also called for the EPA
to stop carrying out its functions administering the CAIR OS trading
program after the 2014 ozone season. See 40 CFR 51.123(ff)(1)(ii). The
requirements for sources to participate in the CSAPR OS trading program
were initially implemented through FIPs, but the EPA provided options
for states to adopt model SIP revisions that would either replace the
FIPs while allowing sources to continue to participate in the
interstate trading programs (``full'' CSAPR SIP revisions) or else
modify the FIP provisions governing emission allowance allocations
while otherwise leaving the FIPs in place (``abbreviated'' CSAPR SIP
revisions). However, the CSAPR model SIP revisions did not provide a
ready-made option for states to meet their ongoing NO<INF>X</INF> SIP
Call obligations as to large non-EGUs by including the sources in the
CSAPR OS trading program.
In 2016, the EPA issued the CSAPR Update addressing interstate
ozone pollution for the 2008 ozone NAAQS. 81 FR 74504 (October 26,
2016). As applied to Missouri, the CSAPR Update required the state's
large EGUs to further reduce seasonal NO<INF>X</INF> emissions
statewide starting in 2017 by participating in the CSAPR NO<INF>X</INF>
Ozone Season Group 2 Trading Program (the CSAPR OS G2 trading program),
a new interstate cap-and-trade program designed to supplement the CSAPR
OS trading program. For sources in states such as Missouri with ozone-
related compliance requirements under both CSAPR and the CSAPR Update,
the EPA coordinated compliance requirements by providing that the
sources' participation in the CSAPR OS G2 trading program would be
deemed to satisfy the requirements under both rules. See id. at 74509 &
n.21. Like the CSAPR OS trading program, the CSAPR OS G2 trading
program was initially implemented through FIPs, but the EPA again
provided options for states to adopt full or abbreviated SIP revisions
to replace or modify the FIPs.
Following the promulgation of CSAPR, Missouri adopted 10 CSR 10-
6.374, Cross-State Air Pollution Rule Ozone Season NO<INF>X</INF>
Trading Allowance Allocations, in 2015 and submitted the rule as an
abbreviated CSAPR SIP revision to modify the FIP's emission allowance
allocation provisions for Missouri's large EGUs. The SIP submittal was
rendered moot by the CSAPR Update, which established a more stringent
seasonal NO<INF>X</INF> emission cap for Missouri's large EGUs, and the
state's rule was not approved into the SIP in that original form.
Following the promulgation of the CSAPR Update, Missouri adopted
amendments to 10 CSR 10-6.374 in 2019 incorporating a complete set of
trading program provisions consistent with the CSAPR Update and
renaming the state's rule as the Cross-State Air Pollution Rule
NO<INF>X</INF> Ozone Season Group 2 Trading Program (referred to here
as the Missouri CSAPR OS G2 Rule). The state submitted the amended rule
to the EPA as a full CSAPR SIP revision to replace the state's CSAPR
Update FIP, and the EPA approved the rule into the SIP in 2019. 84 FR
66316 (December 4, 2019). Between the initial adoption and subsequent
amendment of 10 CSR 10-6.374, the state also rescinded the Missouri
CAIR OS Rule, removing it from the state's regulations, but the EPA has
not approved removal of that rule from the state's SIP.
Since the CSAPR Update, the EPA has issued two more trading program
rules addressing interstate ozone pollution, but neither of those rules
currently applies to Missouri sources. In 2019, the CSAPR Update was
remanded to the EPA for evaluation of possible additional emission
reductions. Wisconsin v. EPA, 983 F.3d 303 (D.C. Cir. 2019). In
response to the remand, in 2021 the EPA issued the Revised CSAPR Update
requiring large EGUs in some other states, but not Missouri, to further
reduce seasonal NO<INF>X</INF> emissions. 86 FR 23054 (April 30, 2021).
Then in 2023, the EPA issued the Good Neighbor Plan addressing
interstate ozone pollution for the 2015 ozone NAAQS. 88 FR 36654 (June
5, 2023). Although the Good Neighbor Plan as promulgated would have
applied to large EGUs and certain non-EGU source categories in
Missouri, the EPA has administratively stayed implementation of the
rule's requirements for all sources in response to judicial stay
orders. 88 FR 49295 (July 31, 2023); 88 FR 67102 (September 29, 2023);
89 FR 87960 (November 6, 2024). Under the terms of the administrative
stay, Missouri's large EGUs continue to participate in the interstate
CSAPR OS G2 trading program as required by the Missouri CSAPR OS G2
Rule.
As noted earlier in this section II.A., when the EPA stopped
carrying out its functions administering the NBTP after the 2008 ozone
season, states' NO<INF>X</INF> SIP Call obligations remained in effect.
As relevant here, by adopting into its SIP control measures applicable
to existing and new large EGUs and existing and new large non-EGUs (in
the eastern one-third of the state) to meet the requirements of the
NO<INF>X</INF> SIP Call, Missouri triggered ongoing obligations for its
SIP to include enforceable seasonal NO<INF>X</INF> mass emissions
limits and associated monitoring requirements for these source
categories. See 40 CFR 51.121(f)(2), (i)(1), and (r)(2). Initially the
NO<INF>X</INF> SIP Call mandated that the monitoring provisions in each
state's SIP require both their large EGUs and their large non-EGUs to
monitor seasonal NO<INF>X</INF> mass emissions in accordance with 40
CFR part 75, but in 2019 the EPA amended the NO<INF>X</INF> SIP Call to
allow states to revise their SIPs to provide alternative forms of
monitoring requirements for their large non-EGUs. 84 FR 8422 (March 8,
2019).
Starting with the 2009 ozone season, Missouri met its ongoing
NO<INF>X</INF> SIP Call mass emissions limit and monitoring obligations
for both large EGUs and large non-EGUs through the Missouri CAIR OS
Rule, which included both emission cap provisions administered by the
EPA and requirements for covered sources to monitor their seasonal
NO<INF>X</INF> emissions in accordance with 40 CFR part 75. When the
EPA stopped carrying out its functions administering the CAIR OS
trading program after the 2014 ozone season, a gap in the state's SIP
was introduced that would have to be filled by other compliance
mechanisms. For the state's NO<INF>X</INF> SIP Call-affected large
EGUs, the current requirements under the Missouri CSAPR OS G2 Rule to
participate in the CSAPR OS G2 trading program satisfy not only the
state's CSAPR Update obligations for the 2008 ozone NAAQS and the
state's ozone-related CSAPR obligations for the 1997 ozone NAAQS but
also the state's NO<INF>X</INF> SIP Call obligations for the 1979 ozone
NAAQS as to large EGUs. See 40 CFR 52.38(b)(13)(ii). In addition, for
the state's NO<INF>X</INF> SIP Call-affected large non-EGUs, the
Missouri CAIR OS Rule's requirements to monitor seasonal NO<INF>X</INF>
emissions in accordance with 40 CFR part 75 remain federally
enforceable SIP requirements, notwithstanding the fact that the EPA has
stopped carrying out its functions administering the trading program
elements of that rule and the fact that the state has removed the rule
from the state's regulations. Those monitoring requirements remain
codified federal law. See 40 CFR
[[Page 17754]]
52.1320(c) (showing that 10 CSR 10-6.364 is still part of the Missouri
SIP). However, since the EPA stopped carrying out its functions
administering the CAIR OS trading program, there has been no provision
of the state's SIP establishing enforceable seasonal NO<INF>X</INF>
mass emissions limits for the state's NO<INF>X</INF> SIP Call-affected
large non-EGUs. As such, while we consider this matter to be beyond the
scope of the present proposal, at this point in time, Missouri does not
have adequate SIP provisions meeting the requirements of 40 CFR
51.121(f)(2) and (r)(2) with respect to its large non-EGUs in the
eastern one-third of the state.
B. Background on the Missouri EGU Emission Rate Rule
Missouri adopted the Missouri EGU Emission Rate Rule in 2000 as
part of the state's plan to attain the 1979 ozone NAAQS in the St.
Louis nonattainment area. As subsequently amended, the rule established
NO<INF>X</INF> emission rate limits during the ozone season for EGUs
over 25 MW throughout the state starting in 2004. The rule also
authorized a form of trading between covered sources to promote
compliance flexibility, but it did not include a cap on NO<INF>X</INF>
mass emissions. The EPA approved the Missouri EGU Emission Rate Rule as
initially adopted and as subsequently amended into the state's SIP in
2000 and 2005, respectively. 65 FR 82285 (December 28, 2000); 70 FR
40193 (July 13, 2005).
As discussed in section II.A. of this document, Missouri adopted
the Missouri CAIR OS Rule in 2007, requiring existing and new large
EGUs throughout the state and existing and new large non-EGUs in the
eastern one-third of the state to participate in an interstate cap-and-
trade program for seasonal NO<INF>X</INF> emissions starting in 2009.
The Missouri CAIR OS Rule applied to all the sources covered by the
Missouri EGU Emission Rate Rule (and potentially to additional
sources). Further, although the requirements of the two rules were
structured differently, both rules promoted compliance flexibility by
allowing some form of trading among covered sources, and the Missouri
CAIR OS Rule was considered more stringent. Accordingly, to avoid
duplicative requirements, when adopting the Missouri CAIR OS Rule the
state also amended the Missouri EGU Emission Rate Rule to sunset its
implementation when implementation of the Missouri CAIR OS Rule began.
The EPA approved the amendments sunsetting the Missouri EGU Emission
Rate Rule into the state's SIP in 2008. 73 FR 17890 (April 2, 2008).
C. Current Proposed Action
In this action, the EPA is proposing to approve the removal of the
Missouri NBTP Rule and the Missouri EGU Emission Rate Rule from the
state's SIP. As discussed in sections II.A. and II.B. of this document,
in anticipation of the implementation of the Missouri CAIR OS Rule
starting in the 2009 ozone season, Missouri amended the Missouri NBTP
Rule and the Missouri EGU Emission Rate Rule to end their
implementation after the 2008 ozone season, and the EPA has already
approved those amendments into the Missouri SIP. Because no substantive
provisions of the Missouri NBTP Rule and the Missouri EGU Emission Rate
Rule remain operative, the rules currently have no effect on emissions
or air quality. Accordingly, their removal from the SIP would not
interfere with any applicable requirement concerning attainment or
reasonable further progress or any other applicable CAA requirement.
As noted in section II.A. of this document, the EPA stopped
carrying out its functions administering the CAIR OS trading program
after the 2014 ozone season. Since that time, the Missouri SIP has not
included provisions establishing enforceable seasonal NO<INF>X</INF>
mass emissions limits for existing and new large non-EGUs in the
eastern one-third of the state as required by the state's ongoing
obligations under the NO<INF>X</INF> SIP Call. However, the sunset
after the 2008 ozone season of the Missouri NBTP Rule and Missouri EGU
Emission Rate Rule did not create this gap, and the removal of the
already-sunsetted rules from the state's SIP would not exacerbate the
gap. The EPA remains ready to assist Missouri in remedying the gap.
For the foregoing reasons, the EPA proposes to find Missouri's
November 14, 2018, request to remove the Missouri NBTP Rule and the
Missouri EGU Emission Rate Rule from the state's SIP approvable in
accordance with CAA section 110, including specifically CAA section
110(l).
III. Have the requirements for approval of a SIP revision been met?
The State submission has met the public notice requirements for SIP
submissions in accordance with 40 CFR 51.102. The submission also
satisfied the completeness criteria of 40 CFR part 51, appendix V. The
State provided public notice on this SIP revision from February 28,
2018, to April 5, 2018 and received one comment from the EPA.
Missouri's official submission addressed the EPA's comment. In
addition, as explained above the revision meets the substantive SIP
requirements of the CAA, including section 110 and implementing
regulations.
IV. What action is the EPA taking?
The EPA is proposing to approve Missouri's request to remove 10 CSR
10-6.350 and 10 CSR 10-6.360 from the SIP because the rules are no
longer operative. We are soliciting comments on this proposed action.
Final rulemaking will occur after consideration of any comments.
V. Incorporation by Reference
In this document, the EPA is proposing to remove rules that were
previously incorporated by reference from the applicable Missouri SIP.
In accordance with requirements of 1 CFR 51.5, the EPA is proposing to
remove 10 CSR 10-6.350 and 10 CSR 10-6.360 discussed in section II. of
this preamble and as set forth below in the proposed revision to 40 CFR
part 52. The EPA has made, and will continue to make, these materials
generally available through <a href="https://www.regulations.gov">https://www.regulations.gov</a> and at the EPA
Region 7 Office (please contact the person identified in the FOR
FURTHER INFORMATION CONTACT section of this preamble for more
information).
VI. Statutory and Executive Order Reviews
Under the CAA, the Administrator is required to approve a SIP
submission that complies with the provisions of the CAA and applicable
Federal regulations. 42 U.S.C. 7410(k); 40 CFR 52.02(a). Thus, in
reviewing SIP submissions, EPA's role is to approve state choices,
provided that they meet the criteria of the CAA. Accordingly, this
action merely approves state law as meeting Federal requirements and
does not impose additional requirements beyond those imposed by state
law. For that reason, this action:
<bullet> Is not a significant regulatory action subject to review
by the Office of Management and Budget under Executive Orders 12866 (58
FR 51735, October 4, 1993) and 13563 (76 FR 3821, January 21, 2011);
<bullet> Executive Order 14192: Unleashing Prosperity Through
Deregulation: Executive Order 14192 does not apply because actions that
approve SIPs are exempted from review under Executive Order 12866.
<bullet> Does not impose an information collection burden under the
provisions of the Paperwork Reduction Act (44 U.S.C. 3501 et seq.);
<bullet> Is certified as not having a significant economic impact
on a substantial number of small entities
[[Page 17755]]
under the Regulatory Flexibility Act (5 U.S.C. 601 et seq.);
<bullet> Does not contain any unfunded mandate or significantly or
uniquely affect small governments, as described in the Unfunded
Mandates Reform Act of 1995 (Pub. L. 104-4);
<bullet> Does not have federalism implications as specified in
Executive Order 13132 (64 FR 43255, August 10, 1999);
<bullet> Is not subject to Executive Order 13045 (62 FR 19885,
April 23, 1997) because it approves a state program;
<bullet> Is not a significant regulatory action subject to
Executive Order 13211 (66 FR 28355, May 22, 2001); and
<bullet> 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 CAA.
In addition, the SIP is not approved to apply on any Indian
reservation land or in any other area where EPA or an Indian tribe has
demonstrated that a tribe has jurisdiction. In those areas of Indian
country, the rule does not have Tribal implications and will not impose
substantial direct costs on Tribal governments or preempt Tribal law as
specified by Executive Order 13175 (65 FR 67249, November 9, 2000).
List of Subjects in 40 CFR Part 52
Environmental protection, Air pollution control, Incorporation by
reference, and Ozone.
Dated: April 11, 2025.
James Macy,
Regional Administrator, Region 7.
For the reasons stated in the preamble, the EPA proposes to amend
40 CFR part 52 as set forth below:
PART 52--APPROVAL AND PROMULGATION OF IMPLEMENTATION PLANS
0
1. The authority citation for part 52 continues to read as follows:
Authority: 42 U.S.C. 7401 et seq.
Subpart AA--Missouri
Sec. 52.1320 [Amended]
0
2. In Sec. 52.1320, the table in paragraph (c) is amended by removing
the entries ``10-6.350'' and ``10-6.360'' under the heading ``Chapter
6--Air Quality Standards, Definitions, Sampling and Reference Methods,
and Air Pollution Control Regulations for the State of Missouri''.
[FR Doc. 2025-07259 Filed 4-28-25; 8:45 am]
BILLING CODE 6560-50-P
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