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Rule2026-20635

Air Plan Approval; Maryland; Reasonably Available Control Technology for Municipal Waste Combustors

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Published
October 8, 2026
Effective
November 9, 2026

Issuing agencies

Environmental Protection Agency

Abstract

The U.S. Environmental Protection Agency (EPA) is approving state implementation plan (SIP) revisions submitted by the State of Maryland. The SIP revisions consist of a regulation that implements statewide reasonably available control technology (RACT) requirements by limiting air emissions of oxides of nitrogen (NO<INF>X</INF>) from municipal waste combustors (MWCs) in Maryland. This action is being taken under the Clean Air Act (CAA).

Full Text

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<title>Federal Register, Volume 91 Issue 194 (Thursday, October 8, 2026)</title>
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[Federal Register Volume 91, Number 194 (Thursday, October 8, 2026)]
[Rules and Regulations]
[Pages 64282-64286]
From the Federal Register Online via the Government Publishing Office [<a href="http://www.gpo.gov">www.gpo.gov</a>]
[FR Doc No: 2026-20635]



[[Page 64282]]

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ENVIRONMENTAL PROTECTION AGENCY

40 CFR Part 52

[EPA-R03-OAR-2019-0295; EPA-R03-OAR-2025-0267; FRL-12837-02-R3]


Air Plan Approval; Maryland; Reasonably Available Control 
Technology for Municipal Waste Combustors

AGENCY: Environmental Protection Agency (EPA).

ACTION: Final rule.

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SUMMARY: The U.S. Environmental Protection Agency (EPA) is approving 
state implementation plan (SIP) revisions submitted by the State of 
Maryland. The SIP revisions consist of a regulation that implements 
statewide reasonably available control technology (RACT) requirements 
by limiting air emissions of oxides of nitrogen (NO<INF>X</INF>) from 
municipal waste combustors (MWCs) in Maryland. This action is being 
taken under the Clean Air Act (CAA).

DATES: This final rule is effective on November 9, 2026.

ADDRESSES: The EPA has established a docket for this action under 
Docket ID Number EPA-R03-OAR-2025-0267. All documents in the docket are 
listed on the <a href="http://www.regulations.gov">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 and will be publicly available 
only in hard copy form. Publicly available docket materials are 
available through <a href="http://www.regulations.gov">www.regulations.gov</a>, or please contact the person 
identified in the FOR FURTHER INFORMATION CONTACT section for 
additional availability information.

FOR FURTHER INFORMATION CONTACT: Ellen Schmitt, Planning & 
Implementation Branch (3AD30), Air & Radiation Division, U.S. 
Environmental Protection Agency, Region III, 1600 John F. Kennedy 
Boulevard, Philadelphia, Pennsylvania 19103. The telephone number is 
(215) 814-5787. Ms. Schmitt can also be reached via electronic mail at 
<a href="/cdn-cgi/l/email-protection#daa9b9b2b7b3aeaef4bfb6b6bfb49abfaabbf4bdb5ac"><span class="__cf_email__" data-cfemail="5c2f3f34313528287239303039321c392c3d723b332a">[email&#160;protected]</span></a>.

SUPPLEMENTARY INFORMATION: Throughout this document, the use of ``we,'' 
``us,'' or ``our'' is intended to refer to the EPA. We use multiple 
acronyms and terms in this preamble. While this list may not be 
exhaustive, to ease the reading of this preamble and for reference 
purposes, the EPA defines the following terms and acronyms here:

CAA Clean Air Act
CBI confidential business information
CEMS continuous emissions monitoring system
CFR Code of Federal Regulations
COMAR Code of Maryland Regulations
CTG control technique guidelines
CRA Congressional Review Act
EPA Environmental Protection Agency
lbs/hr pounds per hour
MCRRF Montgomery County Resource Recovery Facility
MDE Maryland Department of the Environment
MWC municipal waste combustor
NAAQS National Ambient Air Quality Standards
NO<INF>X</INF> oxides of nitrogen (nitrogen oxides)
NPRM notice of proposed rulemaking
OTC Ozone Transport Commission
OTR Ozone Transport Region
ppm parts per million
ppmv parts per million by volume
ppmvd parts per million by volume, dry basis
PRA Paperwork Reduction Act
PTE potential to emit
RACM reasonably available control measures
RACT reasonably available control technology
RFA Regulatory Flexibility Act
SCR selective catalytic reduction
SIP state implementation plan
U.S.C United States Code
VOC volatile organic compound(s)
Wheelabrator Wheelabrator Baltimore, Inc. facility

Table of Contents

I. Background
II. Summary of Maryland's SIP Submittals
III. The EPA's Evaluation of Maryland's Submittals
IV. The EPA's Response to Comments Received
V. Final Action
VI. Incorporation by Reference
VII. Statutory and Executive Order Reviews

I. Background

    On April 29, 2026, the EPA published a notice of proposed 
rulemaking (NPRM) for the State of Maryland.\1\ In the NPRM, the EPA 
proposed approval of a portion of Maryland's SIP submittal from July 
27, 2018 and the State's full SIP submittal from July 17, 2020. The 
EPA's action proposed that Maryland had met the CAA's major source 
NO<INF>X</INF> RACT requirement for MWCs for both the 2008 ozone NAAQS 
and the 2015 ozone NAAQS.
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    \1\ See 91 FR 23046 (April 29, 2026).
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    The CAA requires States to address emissions of NO<INF>X</INF> and 
volatile organic compound(s) (VOC) from certain sources in certain 
parts of the country to limit photochemical reactions that result in 
ozone formation. RACT is an important strategy for reducing 
NO<INF>X</INF> and VOC emissions from major stationary sources. For 
purposes of implementing the ozone NAAQS, a ``major source'' is defined 
based on the source's potential to emit (PTE) NO<INF>X</INF>, VOC, or 
both pollutants.\2\ The applicable thresholds differ based on the 
classification of the nonattainment area in which the source is 
located.
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    \2\ CAA sections 182, 184, and 302.
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    Areas designated nonattainment for the ozone NAAQS are subject to 
the general nonattainment area planning requirements of CAA section 
172.\3\ CAA section 172(c)(1) provides that SIPs for nonattainment 
areas must include reasonably available control measures (RACM), 
including emissions reductions from existing sources through adoption 
of RACT.
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    \3\ Nonattainment areas are areas that do not meet (or that 
contribute to ambient air quality in a nearby area that does not 
meet) the NAAQS. Ozone NAAQS nonattainment areas are initially 
classified based on the design value (or level of ozone) at the time 
the area was designated as nonattainment.
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    RACT is defined as the lowest emission limitation that a particular 
source is capable of meeting by the application of control technology 
that is reasonably available considering technological and economic 
feasibility.\4\ CAA sections 182(b)(2) and 182(f)(1) require States 
with Moderate or higher (Serious, Severe, or Extreme) ozone 
nonattainment areas to implement RACT controls for any source covered 
by a control technique guidelines (CTG) document issued by the EPA and 
for all major sources of VOC and NO<INF>X</INF> emissions located in 
the area.
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    \4\ See December 9, 1976 memorandum from Roger Strelow, 
Assistant Administrator for Air and Waste Management, to Regional 
Administrators, ``Guidance for Determining Acceptability of SIP 
Regulations in Non-Attainment Areas.'' See also 44 FR 53761, 53762 
(September 17, 1979).
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    CAA section 184(a) established the Ozone Transport Region (OTR) 
comprised of all or portions of 12 eastern states, including all of 
Maryland. CAA section 184(b)(1)(B) requires RACT to be implemented on 
all sources in the OTR that are covered by a CTG. Further, CAA section 
184(b)(2) requires that any source in the OTR with a PTE of at least 50 
tons per year (tpy) of VOC ``be considered a major stationary source 
and subject to the requirements which would be applicable to major 
stationary sources if the area were classified as a Moderate 
nonattainment area.'' As such, RACT applies to all sources of VOC in 
the OTR with a PTE of at least 50 tpy.
    In accordance with both CAA sections 182 and 184, Maryland is 
required to submit to the EPA revisions to its SIP that demonstrate how 
it meets RACT

[[Page 64283]]

requirements under the 2008 and 2015 ozone NAAQS, including 
requirements for major stationary sources of NO<INF>X</INF> located 
within the State boundaries.

II. Summary of Maryland's SIP Submittals

    On July 27, 2018, the Maryland Department of the Environment (MDE) 
submitted to the EPA a SIP revision (#18-04) which was intended to 
satisfy certain statewide RACT requirements for sources of 
NO<INF>X</INF> emissions for the 2008 ozone NAAQS, including those 
related to MWCs.\5\ Following that submittal, MDE adopted updated 
emission limits as RACT for MWCs for the 2008 and 2015 ozone NAAQS and 
these updated emission limits were submitted to the EPA as a revision 
to Maryland's SIP on July 17, 2020 (#20-10).
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    \5\ MWC means an incinerator that burns only municipal solid 
waste. A large MWC is an existing municipal waste combustor that has 
a capacity greater than 250 tons per day. Code of Maryland 
Regulations (COMAR) 26.11.08.01.
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    Through the MWC portion of SIP revision #18-04 and SIP revision 
#20-10, MDE adopted new NO<INF>X</INF> RACT standards and requirements 
for the two large MWCs in Maryland, including individual NO<INF>X</INF> 
24-hour block average emission rates and 30-day rolling average 
emission rates. Under MDE's regulations, the Montgomery County Resource 
Recovery Facility (MCRRF) must meet a NO<INF>X</INF> 24-hour block 
average emission rate of 140 parts per million volume (ppmv) and a 30-
day rolling average rate of 105 ppmv. The Wheelabrator Baltimore, Inc. 
facility must meet a NO<INF>X</INF> 24-hour block average emission rate 
of 150 ppmv and a 30-day rolling average rate of 145 ppmv. The 24-hour 
block average and the 30-day rolling average emission rates are 
mathematically adjusted so that the volumetric gas flow rate from the 
stack is corrected to seven percent oxygen, dry basis. During periods 
of startup and shutdown, MCRRF must meet a facility-wide NO<INF>X</INF> 
emission limit of 202 pounds per hour (lbs/hr) timed average mass 
loading over a 24-hour period and the Wheelabrator Baltimore, Inc. 
facility must meet a facility-wide NO<INF>X</INF> emission limit of 252 
lbs/hr timed average mass loading over a 24-hour period. The duration 
of startup and shutdown procedures for a large MWC are not to exceed 
three hours per occurrence, and the NO<INF>X</INF> 24-hour mass 
emission limits apply during these times. Large MWCs must continuously 
monitor NO<INF>X</INF> emissions with a continuous emissions monitoring 
system (CEMS) and submit quarterly reports to MDE.
    Additionally, under MDE's regulations, small MWCs that were 
constructed on or before August 30, 1999, will not be in violation of 
the provisions of 40 Code of Federal Regulations (CFR) part 62 subpart 
JJJ.\6\
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    \6\ Small MWCs in Maryland are defined as those with a capacity 
of at least 35 tons and less than or equal to 250 tons per day.
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III. The EPA's Evaluation of Maryland's Submittals

    The EPA reviewed Maryland's July 27, 2018 and July 17, 2020 SIP 
submissions containing regulations establishing RACT for MWCs for the 
2008 and 2015 ozone NAAQS, and proposed to approve the portions of the 
submissions in our April 29, 2026 NPRM. A full discussion of the EPA's 
rationale for proposing approval of the full July 17, 2020 SIP 
submission and a portion of the July 27, 2018 SIP submission is 
available in the NPRM, which is in the docket for the action.\7\
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    \7\ See Docket ID No. EPA-R03-OAR-2025-0267.
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IV. The EPA's Response to Comments Received

    The initial public comment period for this action was originally 
scheduled to close on May 29, 2026.\8\ On May 28, 2026, the EPA 
extended the comment period by two weeks to June 12, 2026.\9\ The EPA 
received two sets of comments. All comments received have been placed 
in the docket for this action.
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    \8\ See 91 FR 23046 (April 29, 2026).
    \9\ See 91 FR 31688 (May 28, 2026).
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    A summary of the relevant commentsand the EPA's responses thereto 
are provided below.
    Comment 1: One commenter was supportive of the proposed revisions. 
They note the consistency of the Maryland regulation with other States' 
MWC regulations as well as with CAA requirements.
    Response 1: The EPA thanks the commenter for this supportive 
comment.
    Comment 2: One commenter believes that the EPA should issue a 
limited approval to incorporate the proposed MWC limits into the 
Maryland SIP, and simultaneously issue a limited disapproval that would 
direct Maryland to establish for both large MWCs a 24-hour 
NO<INF>X</INF> average emission limit of 110 parts per million by 
volume, dry basis (ppmvd) and a 30-day NO<INF>X</INF> rolling emission 
limit of 105 ppmvd, corrected to seven percent oxygen. The commenter 
notes that the two large MWCs in Maryland are equipped with pollution 
control technology that the EPA and the Ozone Transport Commission 
(OTC) have recognized enable such facilities to meet a NO<INF>X</INF> 
24-hour average of 110 ppm. The commenter states that each facility's 
actual NO<INF>X</INF> emissions are well below what the EPA proposed 
and that by ``definition . . . the proposed limits submitted by 
Maryland cannot constitute RACT.'' The commenter asserts that, since in 
``every case RACT should represent the toughest controls considering 
technological and economic feasibility . . .'', Maryland's proposed 
RACT for large MWCs fails to comply with CAA requirements.\10\ 
Additionally, the commenter states that since the time of MDE's SIP 
submission, multiple states have adopted 24-hour 110 ppm and lower 
limits.
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    \10\ See 91 FR 11811 (March 10, 2026).
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    Response 2: The EPA disagrees with the commenter that we should 
issue both a limited approval and a limited disapproval of the 
submittals. We believe that what Maryland has provided in its SIP 
submittals meets the major NO<INF>X</INF> RACT requirements for large 
MWCs for the 2008 ozone NAAQS and the 2015 ozone NAAQS and therefore a 
full approval is appropriate. The EPA does not agree with the 
commenter's suggestion that we should, at this time, direct Maryland to 
establish a 24-hour NO<INF>X</INF> average emission limit of 110 ppmvd 
and a 30-day NO<INF>X</INF> rolling emission limit of 105 ppmvd for 
both of its large MWCs. While the EPA agrees that the Wheelabrator 
facility is currently operating technology that can meet these limits, 
the facility upgraded its control technology after the State completed 
its RACT analysis and adopted the regulations referred to in this SIP 
action into State law, and submitted this SIP revision to the EPA. The 
commenter acknowledged this as they stated in their comment letter that 
Maryland ``submitted its proposed SIP revisions in 2018 and 2020 and 
that [the submissions] predate technological advancements and upgrades 
which now enable the two facilities at issue to meet lower 
NO<INF>X</INF> emissions.'' \11\ As for MCRRF, which uses proprietary 
Covanta ``Low NO<INF>X</INF>'' technology in addition to selective non-
catalytic reduction (SNCR) technology, 105 ppmvd is currently the 
State's 30-day average RACT requirement for the facility. According to 
the OTC's revised 2023 ``Stationary and Area Sources Committee's 
Municipal Waste Combustor Workgroup Report,'' MCRRF has been able to 
typically control its average 24-hour NO<INF>X</INF> rate to less than 
100 ppm, however there are some periodic spikes in excess of those 
values

[[Page 64284]]

caused by process variations that are outside operator control. The OTC 
Report also refers to a previous publication that concluded that an 
emissions limitation of 140 ppmvd at seven percent oxygen for a 24-hour 
average emissions limit, MCRRF's current RACT 24-hour average RACT 
limit, is reasonable and can be met with good ammonia slip control.\12\
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    \11\ See Docket ID No. EPA-R03-OAR-2025-0267. Comment submitted 
by Earthjustice; 2026-0612 RACT Letter; page 1.
    \12\ Trinity Consultants, ``Project Report Covanta Alexandria/
Arlington, Inc., Reasonably Available Control Technology 
Determination for NO<INF>X</INF>,'' September 2017, and ``Project 
Report Covanta Fairfax, Inc., Reasonably Available Control 
Technology Determination for NO<INF>X</INF>,'' September 2017.
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    The commenter also indicates that since Maryland's SIP submission, 
multiple States have adopted 24-hour 110 ppm and lower average limits 
and the State's MWC RACT determination fails to comply with CAA 
requirements since it does not represent the ``toughest controls.'' The 
commenter points to the Virginia Department of Environmental Quality's 
determination in 2019 that the 110 ppm 24-hour average emissions limit 
is RACT for two Covanta facilities in the Commonwealth. However, these 
facilities use proprietary technology to obtain this limit. As such, 
this technology is unavailable to Wheelabrator. Also, the other States 
that the commenter provides as examples do not yet have the limits the 
commenter refers to adopted into a SIP as RACT for their large MWC's or 
the limits at the facilities are not yet effective. Additionally, the 
EPA expects States to consider recent information, including controls 
that have been achieved in practice by other similar sources, at the 
time they are making RACT determinations.\13\ Since the EPA evaluates 
RACT SIPs based on the information available at the time they were 
developed, it would be unreasonable for the EPA to expect that the 
State should have known the information cited by the commenters when it 
was developing its RACT SIP. However, the EPA's approach to RACT SIPs 
is not only long-established but also makes sense: a State cannot 
anticipate each new technological advancement, nor would it be 
reasonable to expect that their RACT determinations could keep up when 
technology is evolving so quickly. If the EPA adopted the commenter's 
approach, then it could result in a situation where the State's SIP 
submittal could never be approvable as RACT if technology continued to 
advance. In the EPA's view, it is necessary to have a point in time by 
which to judge the adequacy of a RACT SIP submittal, rather than 
requiring States to meet a moving target in terms of technological 
advancements. Further, RACT is an iterative process. Each time a State 
is determining RACT under a different ozone standard, if required, the 
public will have the opportunity to submit to States specific 
information about controls that are alleged to be reasonably available 
in light of technological and economic feasibility at that time. States 
also have the discretion to adopt more stringent limits and controls 
(i.e., beyond-RACT reductions) in addition to RACT when considering 
what emissions reductions of NO<INF>X</INF> and VOC are necessary for 
timely attainment of the ozone NAAQS. Overall, we disagree that 
Maryland's RACT determination, at the time of its SIP submittal, is 
insufficient for meeting RACT under the 2008 ozone NAAQS and the 2015 
ozone NAAQS. Current regulatory proposals in other States are not 
relevant to the sufficiency of Maryland's RACT determination, because 
Maryland's determination was based on EPA guidance, regulations, and 
other information that were available when the RACT SIP was being 
developed.
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    \13\ See RACT Qs & As--Reasonably Available Control Technology 
(RACT): Questions and Answers, William Harnett, Director, Air 
Quality Policy Division, EPA (May 2006). (``States are encouraged to 
use the latest information available in making RACT determinations . 
. . .''; ``The RACT analysis needs to be performed at the time the 
RACT SIP is being developed and once the RACT SIP is approved there 
is no additional duty to reconsider this control obligation for a 
source.''); see also 80 FR at 12279 (March 6, 2015) (``The EPA is 
finalizing the approach where states should refer to the existing 
CTGs and ACTs for purposes of meeting their RACT requirements, as 
well as all relevant information (including recent technical 
information and information received during the public comment 
period) that is available at the time that they are developing their 
RACT SIPs for the 2008 ozone NAAQS. We believe that there is 
sufficient information available to States to inform their RACT 
determinations.'') (emphasis added); Final Rule, Implementation of 
the 2015 National Ambient Air Quality Standards for Ozone: 
Nonattainment Area State Implementation Plan Requirements, 83 FR 
62998, 63007 (December 6, 2018) (in addition to considering 
``existing'' CTGs and ACTs, state air agencies should ``consider all 
other relevant information (including recent technical information 
and information received during the state's public comment period) 
that is available at the time they develop their RACT SIPs'').
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V. Final Action

    In this final rule, regarding MDE's SIP revision #18-04, the EPA is 
only approving statewide RACT control regulations and definitions that 
relate to MWCs. SIP revision #18-04 contains additional elements, 
including Maryland's certification that the State satisfied all 
required statewide RACT elements for the 2008 ozone NAAQS. The EPA is 
not acting on those other elements, including the certification, that 
comprise the remainder of MDE's SIP revision #18-04. The EPA will take 
separate action on those other portions of the July 27, 2018 SIP 
submittal at another time. The EPA approves all portions of MDE's SIP 
revision #20-10, submitted to the EPA on July 17, 2020. Overall, the 
EPA is finalizing approval of the above Maryland SIP revisions as 
meeting the CAA's major source NO<INF>X</INF> RACT requirement for 
municipal waste combustors for both the 2008 ozone NAAQS and the 2015 
ozone NAAQS. The EPA is finalizing this approval pursuant to CAA 
sections 110, 172, 182, and 184.

VI. Incorporation by Reference

    In this document, the EPA is finalizing regulatory text that 
includes incorporation by reference. In accordance with requirements of 
1 CFR 51.5, the EPA is finalizing the incorporation by reference of the 
Maryland Code of Maryland Administrative Regulations (COMAR) described 
in section II of this preamble and in the amendments to 40 CFR part 52 
in this document. The EPA has made, and will continue to make, these 
materials generally available through <a href="http://www.regulations.gov">www.regulations.gov</a> and at the 
EPA Region III Office (please contact the person identified in the FOR 
FURTHER INFORMATION CONTACT section of this preamble for more 
information). Therefore, these materials have been approved by the EPA 
for inclusion in the SIP, have been incorporated by reference by the 
EPA into that plan, are fully federally enforceable under sections 110 
and 113 of the CAA as of the effective date of the final rule of the 
EPA's approval, and will be incorporated by reference in the next 
update to the SIP compilation.\14\
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    \14\ 62 FR 27968 (May 22, 1997).
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VII. 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, the 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

[[Page 64285]]

Executive Order 12866 (58 FR 51735, October 4, 1993);
    <bullet> Is not an Executive Order 14192 (90 FR 9065, February 6, 
2025) regulatory action because this action is not significant 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 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.
    This action is subject to the Congressional Review Act, 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 December 7, 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 approving NO<INF>X</INF> RACT for large MWCs may 
not be challenged later in proceedings to enforce its requirements. 
(See section 307(b)(2).)

List of Subjects in 40 CFR Part 52

    Environmental protection, Air pollution control, Incorporation by 
reference, Intergovernmental relations, Nitrogen dioxide, Ozone, 
Reporting and recordkeeping requirements, Volatile organic compounds.

Amy Van Blarcom-Lackey,
Regional Administrator, Region III.

    For the reasons stated in the preamble, the EPA amends 40 CFR part 
52 as follows:

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 V--Maryland

0
2. Amend Sec.  52.1070, the table in paragraph (c) by:
0
a. Revising the entries for ``10.18.08/26.11.08.01'' and 
``10.18.08.02'';
0
b. Adding in numerical order the entries for ``26.11.08.07'' and 
``26.11.08.10'' immediately after the entry for ``10.18.08.06''; and
0
c. Revising the entry for ``26.11.09.08''.
    The revisions and additions read as follows:


Sec.  52.1070   Identification of plan.

* * * * *
    (c) * * *

                 EPA-Approved Regulations, Technical Memoranda, and Statutes in the Maryland SIP
----------------------------------------------------------------------------------------------------------------
                                                                                                  Additional
                                                        State effective                          explanation/
            Citation                 Title/subject           date         EPA approval date   citation at 40 CFR
                                                                                                    52.1100
----------------------------------------------------------------------------------------------------------------
 
                                                  * * * * * * *
----------------------------------------------------------------------------------------------------------------
                                    10.18.08/26.11.08 Control of Incinerators
----------------------------------------------------------------------------------------------------------------
10.18.08/26.11.08.01............  Definitions........        05/04/2020  10/08/2026, 91 FR
                                                                          [INSERT FEDERAL
                                                                          REGISTER PAGE
                                                                          WHERE THE DOCUMENT
                                                                          BEGINS].
10.18.08.02.....................  Applicability......        12/06/2018  10/08/2026, 91 FR
                                                                          [INSERT FEDERAL
                                                                          REGISTER PAGE
                                                                          WHERE THE DOCUMENT
                                                                          BEGINS].
 
                                                  * * * * * * *
26.11.08.07.....................  Requirements for           12/06/2018  10/08/2026, 91 FR    Added section.
                                   Small Municipal                        [INSERT FEDERAL
                                   Waste Combustors.                      REGISTER PAGE
                                                                          WHERE THE DOCUMENT
                                                                          BEGINS].
26.11.08.10.....................  NOX Requirements           05/04/2020  10/08/2026, 91 FR    Added section.
                                   for Large                              [INSERT FEDERAL
                                   Municipal Waste                        REGISTER PAGE
                                   Combustors.                            WHERE THE DOCUMENT
                                                                          BEGINS].
 
                                                  * * * * * * *
----------------------------------------------------------------------------------------------------------------
  26.11.09 Control of Fuel Burning Equipment, Stationary Internal Combustion Engines, and Certain Fuel-Burning
                                                  Installations
----------------------------------------------------------------------------------------------------------------
 

[[Page 64286]]

 
                                                  * * * * * * *
26.11.09.08.....................  Control of NOX             12/06/2018  10/08/2026, 91 FR    Remove H.
                                   Emissions for                          [INSERT FEDERAL
                                   Major Stationary                       REGISTER PAGE
                                   Sources.                               WHERE THE DOCUMENT
                                                                          BEGINS].
 
                                                  * * * * * * *
----------------------------------------------------------------------------------------------------------------

* * * * *
[FR Doc. 2026-20635 Filed 10-7-26; 8:45 am]
BILLING CODE 6560-50-P


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