Rule2026-05607

Air Plan Approval; Texas; Reasonably Available Control Technology in the Dallas-Fort Worth Ozone Nonattainment Area

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
March 23, 2026
Effective
April 22, 2026

Issuing agencies

Environmental Protection Agency

Abstract

Pursuant to the Federal Clean Air Act (CAA or the Act), the Environmental Protection Agency (EPA) is approving revisions to the Texas State Implementation Plan (SIP), concerning volatile organic compounds (VOC) and nitrogen oxides (NO<INF>X</INF>) Reasonably Available Control Technology (RACT) requirements for the Dallas-Fort Worth (DFW), 2008 8-hour ozone National Ambient Air Quality Standards (NAAQS) Serious nonattainment area (NAA). The revisions were submitted by the State of Texas on May 12, 2020, and May 13, 2020. The EPA is approving revisions to 30 Texas Administrative Code (TAC) Chapters 115 and 117 to implement the major source RACT requirements for VOC and NO<INF>X</INF> as addressed in the RACT analysis and negative declarations included in the Serious area Attainment Demonstration (AD) SIP revision.

Full Text

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<title>Federal Register, Volume 91 Issue 55 (Monday, March 23, 2026)</title>
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[Federal Register Volume 91, Number 55 (Monday, March 23, 2026)]
[Rules and Regulations]
[Pages 13762-13771]
From the Federal Register Online via the Government Publishing Office [<a href="http://www.gpo.gov">www.gpo.gov</a>]
[FR Doc No: 2026-05607]


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ENVIRONMENTAL PROTECTION AGENCY

40 CFR Part 52

[EPA-R06-OAR-2020-0164; FRL-12896-02-R6]


Air Plan Approval; Texas; Reasonably Available Control Technology 
in the Dallas-Fort Worth Ozone Nonattainment Area

AGENCY: Environmental Protection Agency (EPA).

ACTION: Final rule.

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SUMMARY: Pursuant to the Federal Clean Air Act (CAA or the Act), the 
Environmental Protection Agency (EPA) is approving revisions to the 
Texas State Implementation Plan (SIP), concerning volatile organic 
compounds (VOC) and nitrogen oxides (NO<INF>X</INF>) Reasonably 
Available Control Technology (RACT) requirements for the Dallas-Fort 
Worth (DFW), 2008 8-hour ozone National Ambient Air Quality Standards 
(NAAQS) Serious nonattainment area (NAA). The revisions were submitted 
by the State of Texas on May 12, 2020, and May 13, 2020. The EPA is 
approving revisions to 30 Texas Administrative Code (TAC) Chapters 115 
and 117 to implement the major source RACT requirements for VOC and 
NO<INF>X</INF> as addressed in the RACT analysis and negative 
declarations included in the Serious area Attainment Demonstration (AD) 
SIP revision.

DATES: This rule is effective on April 22, 2026.

ADDRESSES: The EPA has established a docket for this action under 
Docket ID No. EPA-R06-OAR-2020-0164. 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 or other information whose disclosure 
is restricted by statute. Certain other material, such as copyrighted 
material, is not placed on the internet. Publicly available docket 
materials are available electronically through <a href="https://www.regulations.gov">https://www.regulations.gov</a>.

FOR FURTHER INFORMATION CONTACT: Ms. Anupa Ahuja, 214-665-2701, 
<a href="/cdn-cgi/l/email-protection#1e7f766b747f307f706b6e7f5e7b6e7f30797168"><span class="__cf_email__" data-cfemail="44252c312e256a252a313425042134256a232b32">[email&#160;protected]</span></a>, and Emad Shahin, 214-665-6717, 
<a href="/cdn-cgi/l/email-protection#05606864612b766d646d6c6b456075642b626a73"><span class="__cf_email__" data-cfemail="a6c3cbc7c288d5cec7cecfc8e6c3d6c788c1c9d0">[email&#160;protected]</span></a>, EPA Region 6 Office, Infrastructure and Ozone 
Section.

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 July 
24, 2025 \1\ and September 5, 2025 \2\ proposals (referred to as the 
``proposals''). In those actions we proposed to approve Texas' May 13, 
2020, RACT SIP revision and May 12, 2020, SIP revision to 30 TAC 
Chapter 115 and Chapter 117 as meeting the 2008 8-hour ozone Serious 
classification RACT level control requirements consistent with section 
172(c)(1) and 182 of the CAA. The EPA's July 24, 2025, action proposed 
to determine that the Texas SIP revisions fulfill the Serious 
NO<INF>X</INF> RACT requirements for the DFW NAA for the 2008 ozone 
NAAQS and to approve the concurrent Chapter 117 rule revisions. The 
EPA's September 5, 2025, action proposed to determine that the Texas 
SIP revisions meet the Serious RACT requirements for CTG and non-CTG 
VOC major sources \3\ for the 2008 ozone NAAQS and to approve the 
concurrent Chapter 115 rule revisions. The relevant Texas SIP revisions 
included Texas' finding that previously approved federally enforceable 
limits on cement kilns continue to fulfill RACT requirements, and CTG 
RACT negative declarations for the following categories of sources 
fiberglass boat manufacturing materials, surface coating for flat wood 
paneling, letterpress printing, shipbuilding and ship repair surface 
coating operations, vegetable oil manufacturing, and rubber tire 
manufacturing categories. Texas also submitted negative declarations 
for several CTG categories for Wise County: graphic arts--rotogravure 
and flexography, flexible package printing, refinery vacuum producing 
systems and process unit turnarounds, wood furniture manufacturing, and 
manufacture of synthesized pharmaceutical products. Texas stated in its 
May 13, 2020, submittal that it did not locate any major sources 
subject to the NO<INF>X</INF> Emissions from Nitric or Adipic Acid 
Manufacturing Alternative Control Techniques (ACT) document. The EPA 
has already taken final action through a different rulemaking process 
to approve the requirement for implementation of RACT for sources 
covered by the 2016 Oil and Natural Gas Industry Control Techniques 
Guidelines (CTG).\4\
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    \1\ 90 FR 34812 (July 24, 2025).
    \2\ 90 FR 42885 (September 5, 2025).
    \3\ Sources emitting VOCs in a quantity greater than the Serious 
area major source definition (50 tpy) and not covered by a CTG 
category or previously approved RACT rule.
    \4\ The EPA's approval of the revisions to the Texas SIP 
concerning RACT requirements for sources covered by the 2016 Oil and 
Natural Gas Control Techniques Guidelines (CTG) for the DFW and HGB. 
nonattainment areas under the 2008 ozone NAAQS. See 88 FR 55379 
(August 15, 2023).
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    During the EPA's July and September 2025 public comment periods, 
the EPA received a total of six comments on our proposals. As explained 
in further detail below, several comments were received on a 
NO<INF>X</INF> Technical Support Document (TSD) that is not associated 
with this action and those comments do not reflect our evaluation of 
Texas' RACT SIP submittal or current Texas rules. In the NO<INF>X</INF> 
TSD associated with this action, the EPA gathered and analyzed relevant 
information including Texas' rulemaking record which contained 
information on specific control technologies and technical and economic 
feasibility for the Emissions Specifications for Attainment 
Demonstration (ESAD) rates, Texas Register documents which included 
Texas' response to comments on the rulemaking, and recent documents 
issued by EPA (such as the 2017 OTC Draft White Paper on Control 
Technologies, OTC State Regulations from Eight Source Categories, 2019 
OTC State Regulations from Eight Source Categories, and 2019 OTC 
Regulatory and Technical Guideline for Control of Nitrogen Oxides 
(NO<INF>X</INF>), and Emissions from Natural Gas Pipeline Compressor 
Fuel[hyphen]Fired Prime Movers). In the VOC TSD for this action, the 
EPA gathered and analyzed relevant information including comparing 
Texas' CTGs and non-CTG major source RACT rules to other relevant state 
VOC RACT rules, and reviewed EPA's RACT/BACT/LAER Clearinghouse (RBLC), 
NSPS, MACT standards, and NESHAPs, where applicable. Consistent with 
this analysis, we proposed to determine that Texas' EPA-previously-
approved Chapters 115 and 117 rules still fulfill the RACT level of 
control requirements

[[Page 13763]]

for sources of VOC and NO<INF>X</INF> in the DFW Serious ozone 
nonattainment area for the purpose of the 2008 ozone NAAQS.
    In this final action, we are responding to comments received on 
both NO<INF>X</INF> and VOC proposals. The comments are available in 
the docket for this action.

II. Response to Comments

A. Disproportionate Impacts of NAAQS Violations to Communities

    Comment: Commenters stated that the EPA failed to incorporate 
environmental justice analyses.
    Response: First, the EPA notes that Executive Order 14148, 
``Initial Rescission of Harmful Executive Orders and Actions'' (90 FR 
8237, January 28, 2025), revoked certain past Executive Orders that 
specifically addressed environmental justice concerns, including 
Executive Order 12898 and Executive Order 14094. Further, under section 
110(k)(3) of the CAA, the EPA is required to approve a SIP submission 
that complies with the provisions of the CAA. The EPA has determined 
that the RACT SIP submittals at issue in this action meet all 
applicable requirements of the CAA, and therefore the EPA is finalizing 
approval of the relevant SIP revisions. Implementation of RACT is 
designed to assist with improving air quality in the nonattainment 
area.

B. Concerns Regarding RACT Control Technologies and Determination

    Comment: Commenters claim that the EPA provided a cursory 
NO<INF>X</INF> RACT analysis in its TSD.
    Response: As an initial note, commenters appear to be commenting on 
a TSD that is not associated with this action and is neither fully 
cited nor made available for additional reference purposes by 
commenters. Specifically, commenters reference a document titled ``EPA 
Technical Support Document (TSD), Oxides of Nitrogen (NO<INF>X</INF>) 
Reasonably Available Control Technology (RACT): Dallas--Fort Worth 
(DFW) 2008 8-Hour Ozone Nonattainment Area,'' Docket No'' (the 
commenters' reference does not include a docket number). Furthermore, 
in some comments, commenters reference TSD page numbers that are 
greater than 27 pages, which is the length of the TSD for this action.
    The commenters reference a TSD that is not the NO<INF>X</INF> TSD 
that the EPA published in the docket for the proposed rulemaking. The 
NO<INF>X</INF> TSD for the proposed rulemaking is titled, ``Technical 
Support Document, Reasonably Available Control Technology Application 
Analysis for Nitrogen Oxides in the Dallas-Fort Worth 2008 Ozone 
Serious Nonattainment Area.''
    The commenters' reference to an unrelated TSD is evidenced further 
by other comments, which will be addressed on a comment-by-comment 
basis in this Response to Comments section. However, even if commenters 
were referring to the correct TSD, the EPA still disagrees with the 
comment. The EPA's TSD provides an extensively detailed evaluation of 
Texas' NO<INF>X</INF> RACT limits that includes a review and comparison 
to recent Best Available Control Technology (BACT) determinations in 
the RBLC, recent documents issued by the EPA to compare to Texas' SIP 
submittal, and rules in other states where similar sources exist in 
nonattainment areas to support our approval.\5\
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    \5\ <a href="https://www.epa.gov/catc/ractbactlaer-clearinghouse-rblc-basic-information">https://www.epa.gov/catc/ractbactlaer-clearinghouse-rblc-basic-information</a>.
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    Comment: Commenters claim that Texas failed to impose new RACT 
emissions limits in Wise County, despite such limits being 
technologically and economically feasible.
    Response: Referencing the incorrect TSD, commenters make a broad 
general claim regarding all RACT limits in Wise County. This general 
comment did not provide any technological or economic feasibility 
information specific to any limit for any category of sources to 
support their cursory statement for sources in Wise County. We note 
that other comments with greater specificity to the type of source and 
specific limits were received and our responses to those comments 
follow below in this document. The EPA's NO<INF>X</INF> TSD (available 
in the docket for this action) details relevant information, including 
BACT, RACT rules in other states, the 2019 OTC Regulatory and Technical 
Guideline for Control of Nitrogen Oxides (NO<INF>X</INF>) Emissions 
from Natural Gas Pipeline Compressor Fuel[hyphen]Fired Prime Movers, 
the 2017 OTC Draft White Paper on Control Technologies, and OTC State 
Regulations from Eight Source Categories, considered in support of our 
proposed approval of the Wise County RACT rates (pages 9-12 of the 
NO<INF>X</INF> TSD).
    Comment: Commenters claim that the EPA's TSD states that the EPA is 
conditionally approving the NO<INF>X</INF> RACT limits for the Martin 
Marietta Cement plant and that these limits are not part of the SIP 
submission.
    Response: Commenters appear to be commenting on an unrelated TSD to 
this action. The EPA took final action to fully approve these limits 
into the SIP on February 22, 2019 (84 FR 5601).

C. Control Technologies

    Comment: Commenters state that NO<INF>X</INF> emissions limits in 
California's South Coast Air Quality Management District (SCAQMD) for 
electric generating units (EGUs) are lower than Texas' RACT rules. 
Commenters point to the SCAQMD's 2022 proposal of Rule 1135(d)(1) table 
1, which limits NO<INF>X</INF> emissions from EGUs to 5 parts per 
million by volume (ppmv) and lower. Commenters claim, with specific TSD 
page references, that the EPA's TSD does not address RACT for gas-fired 
EGUs and only references the 1994 Alternative Control Techniques (ACT) 
for utility boilers.
    Response: Similar to previous comment responses in this document, 
commenters reference specific pages of an unrelated TSD to support 
their comment. Again, the specific pages referenced in their comment do 
not correspond to the TSD associated with this action. The EPA's 
NO<INF>X</INF> TSD associated with this action does not reference the 
1994 ACT as the basis for our approval. The EPA disagrees that our 
NO<INF>X</INF> TSD fails to address EGUs (see pages 24-26 of the 
NO<INF>X</INF> TSD included in the docket).
    Based on the information made available in the docket for this 
action and in consideration of the comment received, we are responding 
to provide additional clarity concerning the SCAQMD Rule 1135(d)(1) 
limit, aside from the commenters review of the unrelated TSD and rules. 
The SCAQMD Rule 1135(d)(1) is titled ``Emissions Limits for Boilers and 
Gas Turbines'', and states that the emissions limits in table 1 apply 
``On and after January 1, 2024''. In response to this comment, EPA 
reviewed SCAQMD's 2018 ``Draft Staff Report, Proposed Amended Rule 
1135'' (the ``Staff Report'').\6\ Of particular relevance in our review 
of the Staff Report, is SCAQMD's determination that it has the 
authority to require equipment replacement to meet state emissions 
standards: ``SCAQMD retains broad statutory authority to adopt 
emission-control requirements for stationary sources, and that 
authority may require equipment replacement, as long as the requirement 
is not arbitrary and capricious.'' \7\
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    \6\ See ``par-1135---dsr---final'', available in the docket.
    \7\ Id.
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    With respect to boilers, the Staff Report examines all of the 
natural gas boilers to which the limit would apply. The Staff Report 
states that ``18 of 23 natural gas boilers are planned to be shutdown. 
Of those 18 natural gas boilers, all but four of them will be shut

[[Page 13764]]

down by January 1, 2024. . . . Another . . . two natural gas boilers 
scheduled for shutdown in 2025 and the two natural gas boilers 
scheduled for shutdown in 2029. Three natural gas boilers are expected 
to be repowered to natural gas turbines or renewable power sources. 
However, if they are not, they will be required to meet the proposed 
limit. . . . The last two natural gas boilers have not been in 
operation since 2012.'' The EPA notes that of the affected natural gas 
boilers, 20 out of 23 sources will meet the Rule 1135(d)(1) limit 
through shutdowns. The EPA also notes that the remaining three are 
expected to be either converted to natural gas-fired turbines (thus 
will no longer be boilers) or repowered to renewable power sources 
(thus will no longer be gas-fired). Notably, the Staff Report does not 
include any evaluation or even identification of any ``reasonably 
available control technology considering technical and economic 
feasibility'' \8\ that could be applied to these existing gas-fired 
boiler units to meet the Rule 1135(d)(1) limit with the unit continuing 
to remain a natural gas-fired boiler.
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    \8\ Memorandum from Roger Strelow, EPA Assistant Administrator 
``Guidance for Determining Acceptability of SIP Regulations in Non-
attainment Areas'', December 9, 1976.
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    It appears that the Rule 1135(d)(1) limit that commenters claim to 
be RACT for natural gas-fired boiler EGUs is actually a specific RACT 
limit for natural gas-fired boiler EGUs that will be converted to 
natural gas-fired turbines or repowered to renewables, but we do not 
agree that Rule 1135(d)(1) limits are RACT for natural gas-fired boiler 
EGUs where the state does not require conversion to natural gas-fired 
turbines or repowering to renewables for this category of sources to 
meet RACT. Therefore, SCAQMD Rule 1135(d)(1) is not comparable to 
Texas' Chapter 117.1310 limits due to the differences in the category 
of sources regulated.
    For natural gas-fired utility boilers, our NO<INF>X</INF> TSD (see 
pages 24-26) detailed relevant information considered, including but 
not limited to, EPA's 2023 EGU NO<INF>X</INF> Mitigation Strategies 
Final Rule TSD and RACT rules in other states for this category of 
sources. EPA concluded that Texas' ESAD limits for utility boilers are 
comparable to performance of Selective Catalytic Reduction (SCR) on 
gas-fired utility boilers and fulfill RACT requirements.
    With respect to stationary gas turbine EGUs, the Staff Report 
examines both natural gas combined cycle and simple cycle gas turbines. 
All of the combined cycle gas turbines are equipped with selective 
catalytic reduction (SCR) pollution control equipment, and 15 out of 23 
units are already permitted at 2 parts per million (ppm), which is the 
Rule 1135(d)(1) limit for this category of sources. Of the remaining 8 
units, two are limited to 2.5 ppm and the remaining units have limits 
ranging from 7 ppm-9 ppm. For simple cycle gas turbines, out of the 
total 59 units, all but two are equipped with SCR. The two units 
without SCR are used sporadically to support renewable power generation 
and can use the low-use provisions to be exempt from the limit. For the 
remaining 57 SCR equipped units, 37 units are permitted at or below the 
Rule 1135 limit of 2.5 ppm, and 20 units are equipped with SCR and have 
a permit emission limitation of 5 ppm.
    It appears that the Rule 1135(d)(1) limits, which commenters claim 
to be RACT for all stationary gas turbine EGUs, may be RACT 
specifically for stationary gas turbines with SCR EGUs that are already 
permitted at or near Rule 1135(d)(1) rates, but we do not agree these 
rates are RACT for existing units without SCR where the state does not 
require replacement to meet state limits. Therefore SCAQMD Rule 
1135(d)(1) rates are not comparable to Texas' Chapter 117.1310 limits 
due to the differences in the category of sources regulated.
    As detailed on page 26 of our NO<INF>X</INF> TSD for stationary gas 
turbines EGUs, the EPA reviewed relevant information, including 2017 
OTC Draft White Paper on Control Technologies and OTC State Regulations 
from Eight Source Categories and RACT rules in other states, in support 
of our approval.
    Comment: Commenters claim Texas fails to establish RACT for gas-
fired boilers and process heaters because Texas' RACT limits for gas-
fired boilers are higher than other state's RACT rules. In support of 
their claim, commenters refer to California SCAMQD Rule 1146(c)(1)(A) 
which limits NO<INF>X</INF> from industrial boilers and process heaters 
to a NO<INF>X</INF> limit of 0.035 lb/MMBtu or lower, and a New York 
State NO<INF>X</INF> RACT limit of 0.05-0.08 lb/MMBtu for gas-fired 
boilers.
    Response: SCAQMD Rule 1146 applies to boilers, steam generators, 
and process heaters. Specifically, SCAQMD Rule 1146(c)(1)(A) applies to 
``All Units Fired on Gaseous Fuels''. Under the Texas rules, 30 TAC 
Chapter 117.410 regulates process heaters and gas-fired boilers as 
separate categories. Considering the significant differences in the 
applicability of Rule 1146(c)(1)(A) and the applicability of Texas' 
Chapter 117.410 rates (explained further below), the EPA disagrees with 
commenters claims regarding natural gas-fired boilers and process 
heaters for categories of sources in nine of the ten DFW NAA Counties. 
For these two categories of sources, Texas' Chapter 117.410 includes 
ESAD limits that are applicable to nine out of ten counties included in 
the DFW NAA. These Texas ESAD rates include a range of limits and are 
comparable to SCAQMD's Rule 1146(c)(1)(A) rates and lower than the New 
York State RACT rule cited by the commenters (see pages 12 and 14 of 
the NO<INF>X</INF> TSD). The remaining county in the DFW NAA, Wise 
County, does not have any gas-fired boilers.
    With respect to process heaters in Wise County, EPA notes that 
SCAQMD 1146 (c)(1)(A) rule applies to ``all units firing gaseous 
fuels'' and the rule is applicable to ``boilers, steam generators, and 
process heaters'', not solely to process heaters. The EPA further notes 
that ``process heaters'' have a different definition than ``thermal 
fluid heaters''. In response to this comment, EPA reviewed the record 
associated with the development of the limits in SCAQMD Rule 1146.\9\ 
The SCAQMD ``Final Staff Support'' report extensively documents the 
testing data of the units to which these limits apply.\10\ There was no 
discussion on ``process heaters'' in the Final Staff Support document, 
thus EPA is unable to verify that any process heaters exist or were 
considered in setting the limit for Rule 1146(c)(1)(A) ``All Units'' 
limit that commenters claim to be RACT for process heaters. It appears 
that SCAQMD's Rule 1146(c)(1)(A) that commenters claim to be RACT for 
process heaters is actually RACT specifically for gaseous fuel fired 
boilers and steam generators and not process heaters. Therefore, 
SCAQMD's Rule 1146(c)(1)(A) is not comparable to Texas' Chapter 117.410 
limits due to the differences in the category of sources regulated.
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    \9\ See ``SCAQMD Rule 1146 development'' available in the 
docket.
    \10\ Id.
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    Thermal fluid heaters can be considered a subcategory of process 
heaters and are subject to SCAQMD Rule 1146(c)(1)(L) (which commenters 
do not cite, but we discuss here since it regulates a subcategory of 
process heaters). In the Final Staff Support document, there was a 
discussion on ``thermal fluid heaters'', which states that ``Source 
tests records from a total of 14 thermal fluid heaters ranging from 2 
MMBtu/hr to 10 MMBtu/hr with emissions limit of 30 ppm were evaluated. 
Five out of 14 units source tested substantially (>64%) below the

[[Page 13765]]

permit limit. Out of the five units, 3 units were new or modified 
equipment permitted at BACT and 2 units utilized burner replacements. 
This shows that it is technically feasible for thermal fluid heaters 
applicable to Rule 1146.1 and Rule 1146 thermal fluid heaters to 
achieve an emission level of 12 ppm with burner replacements after 
providing at least 10% buffer for rule compliance.'' \11\ The EPA notes 
that only ``thermal fluid heaters'' already achieving 30 ppm were 
evaluated and that the Rule 1146 limit could only be achieved with 
burner replacements of existing units having undergone a ``major 
modification'' to trigger the installation of control equipment that 
met BACT requirements. It appears that SCAQMD determined existing units 
could not meet these limits without BACT level control. As a result, 
SCAQMD Rule 1146(c)(6) extends the date of compliance for existing 
sources as far out as 2033; for units permitted to construct or 
permitted to operate prior to ``December 7, 2018, must meet the limits 
in Rule 1146(c)(1) by 2033 or when 50% or more of the unit's burners 
are replaced whichever is earlier.'' It further appears that SCAQMD 
1146(c)(1)(L) may be RACT for existing units with emissions limits of 
30 ppm and will have a 50% burner replacement at some future date, but 
we do not agree that these rates are RACT for existing process heaters 
where the state does not require a 50% burner replacement at some 
future date to meet a future compliance date. Therefore, SCAQMD Rule 
1146 (c)(1)(L) is not comparable to Texas' Chapter 117.405 limits for 
Wise County due to the differences in the category of sources 
regulated. The EPA's NO<INF>X</INF> TSD details relevant information, 
including RACT rules in other states and economic and technical 
feasibility issues considered by Texas in support of our approval for 
the Wise County RACT limits for process heaters (see page 10 of the 
NO<INF>X</INF> TSD).
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    \11\ Id., at page 2-6
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    Comment: Referencing pages 37 of a TSD, commentors claim that EPA's 
TSD only considered the 1994 ACT for process heater and industrial 
boilers.
    Response: Commenters again reference specific pages of an unrelated 
TSD to support the basis of their comment. As the EPA has previously 
detailed in this document, the specific pages referenced by the 
commentor do not correspond to the TSD associated with this action and 
included in the docket for this action. The EPA's NO<INF>X</INF> TSD 
associated with this action does not reference the 1994 ACT as the 
basis for our approval. The EPA's analysis of process heaters (see 
pages 10 and 14 of the NO<INF>X</INF> TSD) did not consider the 1994 
ACT. The EPA considered and discussed in a previous response, the 
relevant information and consideration for the process heaters category 
of sources in support of its proposed approval for this category of 
sources.
    Comment: Commenters provided comments related to the SCAQMD's Rule 
1134, Emissions of Oxides of Nitrogen From Stationary Gas Turbines, and 
specifically Rule 1134(d)(3) related to Emissions Limitations. 
Commenters state that SCAQMD's Rule 1134(d)(3) applicability threshold 
starts at 0.3 megawatt (MW) stationary gas turbines and that Texas only 
sets limits for 10 MW or greater units. Commenters claim that Texas' 
limits are higher than SCAQMD's Rule 1134, which range from 2-12.5 ppm. 
Commenters also included specific comments related to turbine units 
located in Bexar County and Wise County. In Bexar County, commenters 
stated that turbine units must be subject to RACT. For Wise County, 
commenters claim that the TSD quotes reasoning from Texas for limits in 
Wise County and generalized arguments about the cost of implementing 
retrofit technology without providing adequate support. Commenters 
reference specific page numbers from a TSD to claim that the TSD cites 
information from 1994 and prior RACT approval.
    Response: As previously detailed in this action, commenters are 
referencing specific pages of an unrelated TSD and the EPA's 
NO<INF>X</INF> TSD associated with this action does not reference the 
1994 ACT as the basis for our approval. EPA disagrees that its 
NO<INF>X</INF> TSD cited information from 1994 and prior RACT approvals 
as the basis for our approval. Commenters cited to pages that are not 
present in our NO<INF>X</INF> TSD that was included in the docket. The 
EPA also disagrees that Texas' limits are only applicable to stationary 
gas turbines greater than 10 megawatts (MW); commenters appear to be 
commenting on threshold applicability rules that do not exist for the 
DFW NAA. RACT for Bexar County is outside the scope of this action 
because Bexar County is not part of the DFW NAA. The DFW NAA under the 
2008 8-hour ozone NAAQS includes the counties of Collin, Dallas, 
Denton, Ellis, Johnson, Kaufman, Parker, Rockwall, Tarrant, and Wise.
    Based on the information made available in the docket for this 
action and consideration of the comment received, we are responding to 
provide additional clarity concerning stationary gas turbines. All 
existing stationary gas turbines are regulated in the DFW NAA under 
Chapters 117.405 and 117.410.
    SCAQMD Rule 1134(d)(3) which commenters claim to be RACT, states 
that the table 1 limits are applicable ``On and after January 1, 2024, 
or when required by a Permit to Construct or Permit to Operate, 
whichever occurs first''. The EPA notes that a Permit to Construct is 
required for new sources and does not apply to existing sources.
    SCAQMD Rule 1134(d)(3) table 1 lists five different stationary gas 
turbine limits that vary depending on the type of turbine (simple or 
combined cycle), and type of fuel (natural gas, pipeline gas, produced 
gas, or other gas). Texas Chapter 117.405 and Chapter 117.410 apply 
limits based only upon the turbine's size. As such, EPA believes that 
the limits cannot be directly compared because Texas may not have all 
of the same types of stationary gas turbines as SCAQMD. The EPA notes 
that Texas' limit of 0.032 lb/MMbtu (which converts to 9 ppm) for the 
largest size of stationary gas turbine, in nine of the DFW NAA 
Counties, is comparable to SCAQMD's limit of 8 ppm for Natural Gas 
Simple Cycle Pipeline Gas Turbines.
    In response to this comment, the EPA reviewed SCAQMD's 2018 
``Preliminary Draft Staff Report, Stationary Gas Turbines'' (the 
``Preliminary Draft Staff Report'').\12\ Table 2-2, Natural Gas 
Combined Cycle Gas Turbines, identifies information on the sources in 
this category. The EPA's review notes that all but one of units appear 
to be operating at or just above the limits provided for in Rule 
1134(d)(3) for sources that commenced operation in 2009 or later, 
equipped with SCR as new or replacement units. Preliminary Draft Staff 
Report, Table 2-3--Natural Gas Simple Cycle Gas Turbines identifies the 
information on sources in this category. All but two of the units 
permitted at 5 ppm or lower have SCR and were installed in 2001. SCAMQD 
recognizes that a unit would have to be a new or replacement unit with 
SCR by providing a low-use provision in Rule 1134(h)(4) for existing 
units without SCR that are unable to meet the limit without 
replacement. Furthermore, the Preliminary Draft Staff Report discusses 
SCAQMD's determination that it has the authority to require equipment 
replacement to meet state emissions standards: ``The SCAQMD retains 
broad statutory authority to adopt emission-control requirements for 
stationary sources, and that authority may require equipment 
replacement, as long as the

[[Page 13766]]

requirement is not arbitrary and capricious.'' \13\
---------------------------------------------------------------------------

    \12\ See ``par-1134---pdsr---;final'', available in the docket.
    \13\ Id.
---------------------------------------------------------------------------

    It appears that the use of SCR either as a new installation or as a 
replacement unit is the basis of Rule 1134(d)(3) limits. While Rule 
1134(d)(3) limits may be RACT for gas-fired turbines with SCR where the 
state requires existing units to be replaced to meet RACT, we do not 
agree that Rule 1134(d)(3) limits are RACT for existing gas-fired 
turbines where the state does not require units to be replaced to meet 
RACT. Therefore, SCAQMD Rule 1134(d)(3) is not comparable to Texas' 
Chapter 117.405 and 117.410 due to the differences in sources 
regulated.
    As detailed in our analysis in the NO<INF>X</INF> TSD, Texas stated 
that ``Compliance with the emission specification of 0.032 lb/MMBtu for 
stationary gas turbines and duct burners used in turbine exhaust ducts 
may require the installation of SCR. The emission specifications for 
all stationary gas turbines . . . are expected to be achievable through 
combustion modifications such as water or steam injection or other 
modifications''.\14\
---------------------------------------------------------------------------

    \14\ See 32 TexReg 3206 (June 8, 2007), available in the docket.
---------------------------------------------------------------------------

    Texas considered the same technologies as identified as SCAQMD when 
determining the Chapter 117.410 ESAD rates for the nine DFW NAA 
counties. However, applying the same control technology to existing 
units and achieving the same rate as a new or replacement unit subject 
rates presents reasonable technological and economic feasibility 
issues.
    For Chapter 117.405 rates in Wise County, Texas stated ``These 
limits for industrial gas turbines are based on . . .comments and 
supplemental information provided by affected source owners and 
operators: retrofit options or kits to reduce NO<INF>X</INF> emissions 
may not exist for some of these particular makes and models; some units 
have already been retrofitted with dry low-NO<INF>X</INF> combustors to 
reduce emissions and thus may be unable to further reduce 
NO<INF>X</INF> emissions; and in some cases the cost to retrofit the 
unit may be more than the cost of a new unit. . . Additional 
information provided by commenters indicated unit performance 
variability among various turbine model ratings, and stack test data 
provided by an affected source owner or operator for specific units 
identified in Wise County, indicated greater unit-specific performance 
variability. The commission therefore determined that 0.55 lb/MMBtu for 
units rated less than 10,000 hp is an appropriate RACT control level 
considering current performance levels of existing units in Wise 
County''.\15\
---------------------------------------------------------------------------

    \15\ See 40 TexReg 3695 (June 19, 2015), available in the 
docket.
---------------------------------------------------------------------------

    As detailed in the NO<INF>X</INF> TSD on pages 11-12 for Wise 
County and pages 15-16 for the other nine DFW NAA Counties, the EPA 
considered relevant information, including the 2017 OTC Draft White 
Paper on Control Technologies and OTC State Regulations from Eight 
Source Categories, 2019 OTC Regulatory and Technical Guideline for 
Control of Nitrogen Oxides (NO<INF>X</INF>) Emissions from Natural Gas 
Pipeline Compressor Fuel[hyphen]Fired Prime Movers, and RACT rules in 
other states in support of its proposed approval of Texas' limits for 
this category of sources.
    Comment: Commenters claim that Texas fails to establish RACT for 
gas-fired, stationary, internal combustion engines. Commenters state 
that the State of New York limits gas-fired, stationary internal 
combustion engines with a mechanical output rating of 200 bhp or 
greater to 1.5 g/bhp-hr which applies to rich-burn and lean-burn 
engines. Commenters claim that Texas' rule does not cover lean-burn 
engines. Commenters also claim that the EPA's TSD provided no support 
for our proposed approval and cited information from 1994 and previous 
approvals. Commenters cite to pages in a TSD in support of their 
statements.
    Response: Based on the information made available in the docket for 
this action and consideration of the comment received, we are 
responding to provide additional clarity concerning RACT for gas-fired, 
stationary, internal combustion engines. Again, as previously detailed 
in this action, commenters are referencing specific pages of a TSD that 
is not associated with this action. The New York State rule that 
commenters cite is applicable to 200 hp or greater engines. This limit 
from a New York State rule is for engines that are only fired with 
natural gas. New York State's RACT limits for engines that are fired 
with other types of fuel range from 2.0-2.3 grams per brake hp-hr (g/
bhp-hr). Unlike New York State's rule, which has a size applicability 
threshold, Texas' limits for stationary internal combustion engines 
apply to all engines. Texas' limits for rich-burn engines in nine of 
the ten counties in the DFW NAA are lower than New York State's RACT 
limit (see page 14 of the NO<INF>X</INF> TSD). Texas' limits in Wise 
County are comparable to the New York State rule (see pages 10-11 of 
the NO<INF>X</INF> TSD).
    Commenters incorrectly claim that Texas' rules do not cover lean-
burn engines. Texas' Chapter 117.405 and 117.410 rules limit 
NO<INF>X</INF> emissions from lean-burn engines and these emission 
limitations apply to all sizes of engines, not just those of 200 brake 
hp or greater (see pages 10-11, and 14 of the NO<INF>X</INF> TSD). 
Texas presented economic considerations in setting the rate for pre-
2015 lean-burn engines in Wise County (discussed in detail in a later 
comment in this action). Texas does not apply different limits for 
different fuels, unlike New York State's rule. Wise County's RACT rate 
for post-2015 engines, 2.0 g/hp-hr, is comparable to New York's RACT 
rates considering all fuel types. For the other nine counties in the 
DFW NAA, all ESAD rates for lean-burn engines are lower than New York 
State's RACT rule (see pages 10-11, and 14 of the NO<INF>X</INF> TSD). 
The EPA disagrees that our NO<INF>X</INF> TSD cited 1994 information 
and past approvals as the basis for its proposed approval. The 
NO<INF>X</INF> TSD for this action details our review of relevant 
information, including 2019 OTC Regulatory and Technical Guideline for 
Control of Nitrogen Oxides (NO<INF>X</INF>) Emissions from Natural Gas 
Pipeline Compressor Fuel[hyphen]Fired Prime Movers, 2017 OTC Draft 
White Paper on Control Technologies and OTC State Regulations from 
Eight Source Categories and RACT rules in other states for this 
category of sources. Commenters appear to have reviewed a TSD other 
than the one associated with this action.
    Comment: Commenters made a claim that, for gas-fired stationary 
engines where Texas and the EPA believes that existing rules constitute 
RACT, they must provide justification that stronger controls are 
infeasible. Commenters claim that the cost of these controls must be 
computed in order to know whether the retrofit would be economically 
feasible. Commenters state that Texas acknowledges that the limits 
adopted for Wise County are less stringent than elsewhere in the DFW 
area.
    Response: Commenters present no new technologies or other RACT 
limits that are lower than the ESAD limits in nine out of the ten 
counties in the DFW NAA for this category of sources. Commenters also 
do not present any cost data demonstrating the economic feasibility of 
new retrofit technologies for sources in Wise County. The EPA 
acknowledges that the Wise County RACT rates for lean burn engines 
appear to be higher than the other nine counties' ESAD limits. While 
the Wise County RACT rates for lean burn engines appear to be higher 
than the

[[Page 13767]]

ESAD limits for the other nine counties in the DFW NAA, Texas addressed 
this issue in their rulemaking record. Specifically, Texas stated that 
requiring the same limits in Wise County ``may necessitate the 
installation of SCR technology. SCR would cost more than the 
technologies already evaluated for the particular stationary engines in 
Wise County, and would likely result in the replacement of many of the 
gas-fired lean-burn engines in Wise County. Such an outcome is contrary 
to the definition of RACT, i.e., the lowest emission limitation that a 
particular source is capable of meeting by the application of control 
technology that is reasonable available considering technological and 
economic feasibility. A control level cannot represent RACT for a 
``particular source'' if it is more cost effective to replace that 
source with an entirely new source in order to meet the emission 
limitation. Additionally, the commission is allowed to make source-
specific RACT determinations, as the definition of RACT states. The 
commission contends that the NO<INF>X</INF> emission specifications in 
adopted Sec.  117.405(b)(2)(B) present RACT for the particular gas-
fired lean-burn engines in Wise County.'' \16\
---------------------------------------------------------------------------

    \16\ See 40 TexReg 3695 (June 19, 2015), available in the 
docket.
---------------------------------------------------------------------------

    As stated on page 11 of the NO<INF>X</INF> TSD, EPA reviewed recent 
information including, New York State's RACT limit, 2019 OTC Regulatory 
and Technical Guideline for Control of Nitrogen Oxides (NO<INF>X</INF>) 
Emissions from Natural Gas Pipeline Compressor Fuel[hyphen]Fired Prime 
Movers, 2017 OTC Draft White Paper on Control Technologies and OTC 
State Regulations from Eight Source Categories, and Texas' rulemaking 
records, in support of its proposed approval of the Wise County RACT 
limits and ESAD limits for this category of sources (see pages 11 and 
14 of the NO<INF>X</INF> TSD).

D. Notice & Comment

    Comment: Commenters claim that the EPA's Federal Register 
publication is inadequate, because the proposal does not identify the 
specific facilities that are the subject of the rule making and a 
person would have no way of knowing whether to be ``interested'' in the 
rule making without resorting to the technical support document in the 
docket.
    Response: The EPA disagrees with the comment. We are required to 
provide adequate notice to the public and interested parties, and we 
did this through publishing a document in the Federal Register, where 
we outlined Texas' RACT program featuring rules for specific industry 
sectors. In that notification, we also provided our analysis to support 
why Texas' SIP revisions and existing rules fulfill the Serious RACT 
requirements for the DFW nonattainment area for the 2008 ozone NAAQS. 
Finally, in our document we provided a link to the online docket that 
contains all of the supporting materials, and EPA's technical support 
documents that contain our extensive analysis of the Texas RACT 
program.
    This approach to public notice is consistent with EPA's previous 
proposed approval for the Moderate RACT requirements for the DFW 
nonattainment area for the 2008 ozone NAAQS (82 FR 33026 (July 19, 
2017)), and EPA's recent RACT proposed approval actions.\17\
---------------------------------------------------------------------------

    \17\ See e.g., EPA's proposed approval notices for areas in 
Arizona (91 FR 6557 (February 12, 2026)), Ohio (90 FR 41925 (August 
28, 2025)), and Colorado (90 FR 25960 (June 18, 2025)).
---------------------------------------------------------------------------

    Comment: Commenters state that the notification is inadequate 
because, according to the Office of the Federal Register, proposed 
rulemaking must provide ``a statement of the proposed rule's basis and 
purpose . . . in plain language that the reader can easily 
understand.''
    Response: Based on the information provided by the commenter, it is 
unclear how the information provided by the EPA failed to meet the 
direction provided by the Office of the Federal Register. In the EPA's 
proposals for this action, the EPA provided background information, an 
explanation of Texas' SIP submission, the EPA's analysis, and the 
proposed publications. The proposals were further supplemented by 
technical support documents for both NO<INF>X</INF> and VOC emissions.
    Comment: Commenters refer to the Office of Federal Register's 
``Document Drafting Handbook'' \18\ (DDH) and state that the document 
must include a physical mailing address for persons who wish to submit 
comments by mail and noted that the EPA's proposed rulemaking does not 
include this information.
---------------------------------------------------------------------------

    \18\ See Office of the Federal Register, ``Document Drafting 
Handbook,'' page 2-8 (Aug. 2018 ed.), available at <a href="https://www.archives.gov/files/federal-register/write/handbook/ddh.pdf">https://www.archives.gov/files/federal-register/write/handbook/ddh.pdf</a>.
---------------------------------------------------------------------------

    Response: The DDH states that all proposed rulemakings ``must have 
at least one address.'' \19\ The DDH then provides a list of potential 
addresses that an agency could use, including addresses for mailing 
public comments, sending public comments electronically, hand-
delivering public comments, or attending a public hearing (or meeting). 
In the proposals for this action, the EPA properly complied with the 
DDH by offering an address to send public comments electronically (via 
<a href="http://www.regulations.gov">www.regulations.gov</a>), and by providing an email address where a 
potential commenter could contact the EPA staff contact to submit 
comments via alternative methods.
---------------------------------------------------------------------------

    \19\ Id.
---------------------------------------------------------------------------

E. Texas Commission on Environmental Quality (TCEQ) Comments

    The EPA received comment letters from the TCEQ in support of our 
proposals. TCEQ requested clarification and administrative corrections 
to the VOC and NO<INF>X</INF> TSDs.
VOC TSD
    TCEQ requested the following corrections to the VOC TSD:
    <bullet> In table 2 on page 6, TCEQ requests the EPA correct the 
CTG Reference Document for Cutback Asphalt, which is mislabeled as 
Control of Volatile Organic Emissions from Bulk Gasoline Plant.
    <bullet> In table 2 on page 7, TCEQ requests the EPA correct the 
CTG Reference Document for Petroleum Liquid Storage Fixed Roof Tanks 
CTG to document number EPA-450/2-77-035.
    <bullet> In the Stage 1 Vapor Control Systems (1975) table on page 
32 of the TSD, TCEQ requests the EPA remove the floating roof tank from 
the Texas Requirement Summary. While a floating roof tank may be an 
equivalent control under 30 TAC Sec.  115.223, this control option is 
not specifically mentioned in 30 TAC Sec. Sec.  115.221-115.229.
    <bullet> In the Tank Truck Gasoline Loading Terminals (1977) table 
on page 40 of the TSD, TCEQ requests the EPA remove the floating roof 
tank from the Texas Requirement Summary. While a floating roof tank may 
meet the 90% control requirement at 30 TAC Sec.  115.212 or be 
considered an equivalent control under 30 TAC Sec.  115.213 or 30 TAC 
Sec.  115.223, it is not specifically mentioned in 30 TAC Sec. Sec.  
115.211-115.219 or 30 TAC Sec. Sec.  115.221-115.229.
    <bullet> In the Surface Coating of Metal Furniture (1977) and Metal 
Furniture Coatings (2007) table on page 42 of the TSD, TCEQ requests 
that the EPA add 30 TAC Sec. Sec.  115.450-115.459 to the Texas 
Requirement Summary. TCEQ implemented the 1977 CTG in 30 TAC Sec. Sec.  
115.420-115.429 and the 2007 CTG in 30 TAC Sec. Sec.  115.450-115.459. 
The EPA's stated range of 2.3 to 5.1 pound per gallon (lb/gal) applies 
to 30 TAC Sec.  115.453. The correct limit in 30 TAC Sec.  115.421(2) 
is 3.0 lb/gal.

[[Page 13768]]

    <bullet> In the Bulk Gasoline Plants (1977) table on pages 45-46 of 
the TSD, TCEQ requests the EPA remove the floating roof tank from the 
Texas Requirement Summary. While a floating roof tank may meet the 90% 
control requirement at 30 TAC Sec.  115.212(a)(5) or be considered an 
equivalent control under 30 TAC Sec.  115.213, it is not specifically 
mentioned in 30 TAC Sec. Sec.  115.211-115.219.
    <bullet> In the Surface Coating of Miscellaneous Metal Parts and 
Products (1978) and Control Techniques for Miscellaneous Metal Parts 
Coatings (2008) table on page 50 of the TSD, TCEQ requests the EPA add 
30 TAC Sec. Sec.  115.450-115.459 to the Texas Requirement Summary. 
TCEQ implemented the 1978 CTG in 30 TAC Sec. Sec.  115.420-115.429 and 
the 2008 CTG in 30 TAC Sec. Sec.  115.450-115.459.
    <bullet> In the Graphic Arts-Rotogravure and Flexography table on 
pages 55-56 of the TSD, TCEQ requests the EPA correct the Texas 
Requirement Summary. TCEQ rules contain a requirement for 90% control 
of captured vapors and capture requirements for various printing 
processes ranging from 60% to 75%.
    <bullet> In the Petroleum Liquid Storage in External Floating Roof 
Tanks (1978) table on page 57 of the TSD, TCEQ requests the EPA correct 
the Texas Requirement Summary. TCEQ rules in 30 TAC Sec. Sec.  115.110-
115.119 require various combinations of a submerged fill pipe, floating 
roof, floating roof with seals, and/or a vapor control system based on 
the vapor pressure of the liquid stored and size of the tank.
    <bullet> In the Aerospace (1997) table on pages 70-71 of the TSD, 
TCEQ requests the EPA correct the Texas Requirement Summary. TCEQ rules 
in 30 TAC Sec. Sec.  115.420-115.429 require VOC content limits ranging 
from 60 to 1,230 grams per liter. The cleaning solvents used must be 
over 80% water by volume or have a composite vapor pressure less than 
or equal to 45 millimeters of mercury at 20 degrees Celsius. 
Conventional spray application is prohibited.
NO<INF>X</INF> TSD
    Comment: TCEQ stated their support for the proposed approval. TCEQ 
requested the following changes: (1) on page 11, remove the incorrect 
reference to SCR, (2) on page 14, remove the incorrect reference to 
SNCR, (3) the correct ratings are less than 1 MW; 1.0 MW or greater, 
but less than 10MW; and 10 MW or greater. TCEQ also requested 
correcting minor discrepancies in the VOC TSD table of states' RACT 
comparisons.
    Response: The EPA has provided final NO<INF>X</INF> and VOC TSDs 
that reflect these corrections to the supplemental TSDs and the 
corrected TSDs are available in the docket.

F. Other Comments

    The EPA received several comments that were not relevant to this 
action and/or which were outside the scope of this action. Consistent 
with CAA section 110, a SIP is designed to address the relevant NAAQS 
pollutant and its precursors. For ozone nonattainment purposes, the EPA 
is required to review the State's SIP revision to determine if it meets 
the RACT requirements of the CAA. RACT requirements for the ozone NAAQS 
apply to NO<INF>X</INF> and VOC, which are ozone precursors.
    Comment: Commenters claim that the EPA's review does not adequately 
address the potential for increased carbon dioxide (CO<INF>2</INF>) and 
other greenhouse gas (GHG) emissions, the Texas analysis provided does 
not appear to include an evaluation of the potential GHG impacts, and 
an overall environmental impact must also consider the economic costs 
associated with increased CO<INF>2</INF> emissions. Commenters request 
that the EPA include an analysis of CO<INF>2</INF> emissions changes 
associated with the proposed RACT determinations, and the environmental 
impacts of carbon pollution.
    Response: Emissions and impacts associated with CO<INF>2</INF> and 
other GHG emissions are outside of the scope of this action.
    Comment: Commenters recommend if an area does not meet Federal 
standards then any and all industry in the State that does not meet air 
quality standard emissions be immediately shut down until air quality 
standards are met and sustained for one quarter. The commenters also 
recommended the implementation of a mandatory prison sentence for 
repeat polluters.
    Response: Cessation of operation of industrial sources, 
enforcement, and penalties are outside the scope of this action.
    Comment: Commenter stated their support for the approval and 
implementation of the proposed regulation to protect the environment 
and reduce pollution.
    Response: The EPA appreciates the support.

III. Final Action

    The EPA is approving the SIP revisions submitted by Texas on May 
12, 2020, and May 13, 2020, that fulfill the Serious RACT requirements 
for the DFW nonattainment area for the 2008 ozone NAAQS. The EPA is 
also approving the concurrent 30 TAC Chapters 115 and 117 rule 
revisions. Specifically, the EPA is approving amendments to 30 TAC 
Chapter 115, Control of Air Pollution from Volatile Organic Compounds, 
Sec. Sec.  115.10, 115.111, 115.112, 115.119, and 115.421, and 30 TAC 
Chapter 117, Control of Air Pollution from Nitrogen Compounds, 
Sec. Sec.  117.10, 117.403, 117.8000, and 117.9030, into the Texas SIP. 
The 30 TAC Chapter 115 and 117 amendments implement major source 
NO<INF>X</INF> and VOC RACT requirements to the DFW nonattainment area 
for the 2008 8-hour ozone NAAQS Serious classification.
    We are also approving in this action the CTG VOC RACT negative 
declarations for the following categories of sources: fiberglass boat 
manufacturing materials, surface coating for flat wood paneling, 
letterpress printing, shipbuilding and ship repair surface coating 
operations, vegetable oil manufacturing, rubber tire manufacturing 
categories; for Wise County only: graphic arts--rotogravure and 
flexography, flexible package printing, refinery vacuum producing 
systems and process unit turnarounds, wood furniture manufacturing, and 
manufacture of synthesized pharmaceutical products.

IV. Incorporation by Reference

    In this rule, 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 the 
revisions to the Texas 30 TAC Chapters 115 and 117 regulations as 
described in Section III of this preamble, Final Action. The EPA has 
made, and will continue to make, these materials generally available 
through <a href="http://www.regulations.gov">www.regulations.gov</a> (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 rulemaking of 
the EPA's approval, and will be incorporated by reference in the next 
update to the SIP compilation.

V. Statutory and Executive Order Reviews

    Under the Clean Air Act, the Administrator is required to approve a 
SIP submission that complies with the provisions of the Act and 
applicable Federal regulations. 42 U.S.C. 7410(k);

[[Page 13769]]

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 
Clean Air Act. 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);
    <bullet> Is not subject to Executive Order 14192 (90 FR 9065, 
February 6, 2025) because State Implementation Plan approvals under the 
CAA are exempt 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 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 Clean Air Act.
    In addition, the SIP is not approved to apply on any Indian 
reservation land or in any other area where the EPA or an Indian Tribe 
has demonstrated that a Tribe has jurisdiction. In those areas of 
Indian country, the final 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).
    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 Clean Air Act, petitions for 
judicial review of this action must be filed in the United States Court 
of Appeals for the appropriate circuit by May 22, 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 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.

    Dated: March 10, 2026.
Walter Mason,
Regional Administrator, Region 6.

    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 SS--Texas

0
2. In Sec.  52.2270:
0
a. In paragraph (c), the table titled ``EPA Approved Regulations in the 
Texas SIP'' is amended by revising the entries for ``Section 115.10'', 
``Section 115.111'', ``Section 115.112'', ``Section 115.119'', 
``Section 115.421'', ``Section 117.10'', ``Section 117.403'', ``Section 
117.8000'', and ``Section 117.9030''; and
0
b. In paragraph (e), the table titled ``EPA Approved Nonregulatory 
Provisions and Quasi-Regulatory Measures in the Texas SIP'' is amended 
by adding entries for ``VOC RACT negative declarations for fiberglass 
boat manufacturing materials, surface coating for flat wood paneling, 
letterpress printing, shipbuilding and ship repair surface coating 
operations, vegetable oil manufacturing, and rubber tire manufacturing; 
for Wise County only: graphic arts--rotogravure and flexography, 
flexible package printing, refinery vacuum producing systems and 
process unit turnarounds, wood furniture manufacturing, and manufacture 
of synthesized pharmaceutical products'', ``Dallas-Fort Worth 2008 
eight-hour ozone serious nonattainment NO<INF>X</INF> RACT 
demonstration'', and ``Dallas-Fort Worth 2008 eight-hour ozone serious 
nonattainment VOC RACT demonstration'' to the end of the table.
    The revisions and additions read as follows:


Sec.  52.2270  Identification of plan.

* * * * *
    (c) * * *
    EPA Approved Regulations in the Texas SIP

----------------------------------------------------------------------------------------------------------------
                                                         State approval/
        State citation               Title/subject          submittal       EPA approval date       Explanation
                                                              date
----------------------------------------------------------------------------------------------------------------
 
                                                  * * * * * * *
----------------------------------------------------------------------------------------------------------------
                  Chapter 115 (Reg 5)--Control of Air Pollution From Volatile Organic Compounds
                                            Subchapter A--Definitions
----------------------------------------------------------------------------------------------------------------
Section 115.10...............  Definitions.............        3/4/2020  3/23/2026, 91 FR
                                                                          [INSERT FEDERAL
                                                                          REGISTER PAGE WHERE
                                                                          THE DOCUMENT BEGINS].
----------------------------------------------------------------------------------------------------------------
                             Subchapter B--General Volatile Organic Compound Sources
                                Division 1: Storage of Volatile Organic Compounds
----------------------------------------------------------------------------------------------------------------
 
                                                  * * * * * * *
Section 115.111..............  Exemptions..............        3/4/2020  3/23/2026, 91 FR
                                                                          [INSERT FEDERAL
                                                                          REGISTER PAGE WHERE
                                                                          THE DOCUMENT BEGINS].

[[Page 13770]]

 
Section 115.112..............  Control Requirements....        3/4/2020  3/23/2026, 91 FR
                                                                          [INSERT FEDERAL
                                                                          REGISTER PAGE WHERE
                                                                          THE DOCUMENT BEGINS].
 
                                                  * * * * * * *
Section 115.119..............  Compliance Schedules....        3/4/2020  3/23/2026, 91 FR
                                                                          [INSERT FEDERAL
                                                                          REGISTER PAGE WHERE
                                                                          THE DOCUMENT BEGINS].
 
                                                  * * * * * * *
----------------------------------------------------------------------------------------------------------------
                                      Subchapter E--Solvent-Using Processes
----------------------------------------------------------------------------------------------------------------
 
                                                  * * * * * * *
----------------------------------------------------------------------------------------------------------------
                                      Division 2: Surface Coating Processes
----------------------------------------------------------------------------------------------------------------
 
                                                  * * * * * * *
Section 115.421..............  Emission Specifications.        3/4/2020  3/23/2026, 91 FR
                                                                          [INSERT FEDERAL
                                                                          REGISTER PAGE WHERE
                                                                          THE DOCUMENT BEGINS].
 
                                                  * * * * * * *
----------------------------------------------------------------------------------------------------------------
                          Chapter 117--Control of Air Pollution from Nitrogen Compounds
                                            Subchapter A--Definitions
----------------------------------------------------------------------------------------------------------------
Section 117.10...............  Definitions.............        3/4/2020  3/23/2026, 91 FR
                                                                          [INSERT FEDERAL
                                                                          REGISTER PAGE WHERE
                                                                          THE DOCUMENT BEGINS].
----------------------------------------------------------------------------------------------------------------
      Subchapter B--Combustion Control at Major Industrial, Commercial, and Institutional Sources in Ozone
                                               Nonattainment Areas
----------------------------------------------------------------------------------------------------------------
 
                                                  * * * * * * *
----------------------------------------------------------------------------------------------------------------
                 Division 4--Dallas-Fort Worth Eight-Hour Ozone Nonattainment Area Major Sources
----------------------------------------------------------------------------------------------------------------
 
                                                  * * * * * * *
----------------------------------------------------------------------------------------------------------------
Section 117.403..............  Exemptions..............        3/4/2020  3/23/2026, 91 FR
                                                                          [INSERT FEDERAL
                                                                          REGISTER PAGE WHERE
                                                                          THE DOCUMENT BEGINS].
 
                                                  * * * * * * *
----------------------------------------------------------------------------------------------------------------
                            Subchapter G--General Monitoring and Testing Requirements
                          Division 1--Compliance Stack Testing and Report Requirements
----------------------------------------------------------------------------------------------------------------
Section 117.8000.............  Stack Testing                   3/4/2020  3/23/2026, 91 FR
                                Requirements.                             [INSERT FEDERAL
                                                                          REGISTER PAGE WHERE
                                                                          THE DOCUMENT BEGINS].
 
                                                  * * * * * * *
----------------------------------------------------------------------------------------------------------------
                                     Subchapter H--Administrative Provisions
                                        Division 1--Compliance Schedules
----------------------------------------------------------------------------------------------------------------
 
                                                  * * * * * * *
----------------------------------------------------------------------------------------------------------------
Section 117.9030.............  Compliance Schedule for         3/4/2020  3/23/2026, 91 FR
                                Dallas-Fort Worth Eight-                  [INSERT FEDERAL
                                Hour Ozone                                REGISTER PAGE WHERE
                                Nonattainment Area                        THE DOCUMENT BEGINS].
                                Major Sources.
 
                                                  * * * * * * *
----------------------------------------------------------------------------------------------------------------

* * * * *
    (e) * * *

[[Page 13771]]



              EPA Approved Nonregulatory Provisions and Quasi-Regulatory Measures in the Texas SIP
----------------------------------------------------------------------------------------------------------------
                                        Applicable           State
      Name of SIP provision           geographic or       submittal/     EPA approval date         Comments
                                    nonattainment area  effective date
----------------------------------------------------------------------------------------------------------------
 
                                                  * * * * * * *
VOC RACT negative declarations     Dallas-Fort Worth,         3/4/2020  3/23/2026, 91 FR     For the DFW Serious
 for fiberglass boat                TX, 2008 8-hour                      [INSERT FEDERAL      classification
 manufacturing materials, surface   ozone NAAQS                          REGISTER PAGE
 coating for flat wood paneling,    nonattainment area.                  WHERE THE DOCUMENT
 letterpress printing,                                                   BEGINS.
 shipbuilding and ship repair
 surface coating operations,
 vegetable oil manufacturing, and
 rubber tire manufacturing; for
 Wise County only: graphic arts--
 rotogravure and flexography,
 flexible package printing,
 refinery vacuum producing
 systems and process unit
 turnarounds, wood furniture
 manufacturing, and manufacture
 of synthesized pharmaceutical
 products.
Dallas-Fort Worth 2008 eight-hour  Dallas-Fort Worth,        5/12/2020  3/23/2026, 91 FR
 ozone serious nonattainment NOX    TX, 2008 8-hour                      [INSERT FEDERAL
 RACT demonstration.                ozone NAAQS                          REGISTER PAGE
                                    nonattainment area.                  WHERE THE DOCUMENT
                                                                         BEGINS].
Dallas-Fort Worth 2008 eight-hour  Dallas-Fort Worth,        5/13/2020  3/23/2026, 91 FR
 ozone serious nonattainment VOC    TX, 2008 8-hour                      [INSERT FEDERAL
 RACT demonstration.                ozone NAAQS                          REGISTER PAGE
                                    nonattainment area.                  WHERE THE DOCUMENT
                                                                         BEGINS].
----------------------------------------------------------------------------------------------------------------

* * * * *
[FR Doc. 2026-05607 Filed 3-20-26; 8:45 am]
BILLING CODE 6560-50-P


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Indexed from Federal Register on March 23, 2026.

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