Notice2026-22164
Additions to the Clean Air Act Section 111, 112, and 129 Applicability Determination Dashboard and to the List of Broadly Applicable Alternative Test Methods
Primary source
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Published
October 30, 2026
Issuing agencies
Environmental Protection Agency
Abstract
This document announces the availability of applicability determinations, regulatory interpretations, alternative monitoring, and other determinations made by the Environmental Protection Agency (EPA) from June 2025 to July 2026. The EPA made these applicability determinations, regulatory interpretations, alternative monitoring, and other determinations in response to inquiries concerning compliance with the Clean Air Act (CAA) stationary source program, specifically the New Source Performance Standards (NSPS); the National Emission Standards for Hazardous Air Pollutants (NESHAP); and the Emission Guidelines and Federal Plan Requirements for existing sources. The EPA posted the decisions on the CAA Section 111, 112, and 129 Applicability Determination Dashboard (ADD). This document also announces six broadly applicable alternative test method approval decisions that the EPA made in 2022, 2024, and 2025. These broadly applicable alternative test methods were approved in support of the NSPS and the NESHAP.
Full Text
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<title>Federal Register, Volume 91 Issue 209 (Friday, October 30, 2026)</title>
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[Federal Register Volume 91, Number 209 (Friday, October 30, 2026)]
[Notices]
[Pages 68510-68515]
From the Federal Register Online via the Government Publishing Office [<a href="http://www.gpo.gov">www.gpo.gov</a>]
[FR Doc No: 2026-22164]
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ENVIRONMENTAL PROTECTION AGENCY
[EPA-HQ-OAR-2026-8350, EPA-HQ-OAR-2007-1196; FRL-13631-01-OAR]
Additions to the Clean Air Act Section 111, 112, and 129
Applicability Determination Dashboard and to the List of Broadly
Applicable Alternative Test Methods
AGENCY: Environmental Protection Agency (EPA).
ACTION: Notice of availability.
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SUMMARY: This document announces the availability of applicability
determinations, regulatory interpretations, alternative monitoring, and
other determinations made by the Environmental Protection Agency (EPA)
from June 2025 to July 2026. The EPA made these applicability
determinations, regulatory interpretations, alternative monitoring, and
other determinations in response to inquiries concerning compliance
with the Clean Air Act (CAA) stationary source program, specifically
the New Source Performance Standards (NSPS); the National Emission
Standards for Hazardous Air Pollutants (NESHAP); and the Emission
Guidelines and Federal Plan Requirements for existing sources. The EPA
posted the decisions on the CAA Section 111, 112, and 129 Applicability
Determination Dashboard (ADD). This document also announces six broadly
applicable alternative test method approval decisions that the EPA made
in 2022, 2024, and 2025. These broadly applicable alternative test
methods were approved in support of the NSPS and the NESHAP.
FOR FURTHER INFORMATION CONTACT: For questions about the ADD, broadly
applicable alternative test methods, or this document, contact
<a href="/cdn-cgi/l/email-protection#1d4f5c59545050525d786d7c337a726b"><span class="__cf_email__" data-cfemail="540615101d19191b143124357a333b22">[email protected]</span></a>. This email address is for inquiries on all Regulatory
Applicability Determinations, Interpretations, Alternative Methods,
Monitoring, and Other requests (RADIMMO).
We post an electronic copy of each document on the ADD, which is
available on the internet at: <a href="https://www.epa.gov/complying-air-emissions-standards-stationary-sources/epa-determinations-compliance-and">https://www.epa.gov/complying-air-emissions-standards-stationary-sources/epa-determinations-compliance-and</a>. An electronic copy of each alternative test method approval
document is available at <a href="https://www.epa.gov/emc/broadly-applicable-approved-alternative-test-methods">https://www.epa.gov/emc/broadly-applicable-approved-alternative-test-methods</a>.
SUPPLEMENTARY INFORMATION:
I. Applicability Determinations, Regulatory Interpretations, and
Alternative Monitoring, and Other Requests
The General Provisions of the NSPS in 40 CFR 60.5 and the General
Provisions of the NESHAP in 40 CFR 61.06 allow a source owner or
operator to request a determination of whether certain intended actions
constitute the commencement of construction, reconstruction, or
modification. The General Provisions in 40 CFR part 60 also apply to
Federal and EPA-approved state plans for existing sources in 40 CFR
\1\. The EPA's written responses to source or facility-specific
inquiries on provisions in 40 CFR parts 60, 61 and 62 are commonly
referred to as applicability determinations. Although the NESHAP (40
CFR part 63) regulations contain no specific regulatory provision
providing that sources may request applicability determinations, the
EPA also responds to written inquiries regarding applicability for the
40 CFR part 63 regulations.
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\1\ See 40 CFR 62.02(b)(2).
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The General Provisions in 40 CFR parts 60 and 63 allow sources to
seek permission to use monitoring or recordkeeping that is different
from the promulgated requirements.\2\ The EPA's written responses to
these inquiries are commonly referred to as alternative monitoring
decisions.
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\2\ See 40 CFR 60.13(i), 61.14(g), 63.8(b)(1), 63.8(f), and
63.10(f).
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The EPA responds to written inquiries about the broad range of
regulatory requirements in 40 CFR parts 60 through 63 as they pertain a
whole source category, e.g., petroleum refineries, printing and coating
operations.\3\ These inquiries may concern the type of source subject
to the regulation, or the applicable testing, monitoring,
recordkeeping, or reporting requirements required by the regulation.
The EPA's written responses to these
[[Page 68511]]
inquiries are commonly referred to as regulatory interpretations.
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\3\ Source category refers to a collection of stationary sources
or equipment at stationary sources that are grouped together because
they share similar processes, operations, or emissions
characteristics.
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The EPA posts our responses to questions about compliance
determination, alternative monitoring or recordkeeping, and regulatory
determination on the CAA Section 111, 112, and 129 Applicability
Determination Dashboard (ADD). The ADD is a data system, accessed via
the internet, containing all determinations signed after May 2019. The
letters and memoranda on the ADD may be located by facility name,
affected subpart, or by response date and is searchable by string word
searches.
The EPA previously posted EPA-issued NSPS and NESHAP applicability
determinations, alternative monitoring decisions, and regulatory
interpretations to the Applicability Determination Index (ADI). All
previously issued responses (those signed before June 2019) are posted
on the ADI data system available on the internet at: <a href="https://cfpub.epa.gov/adi/">https://cfpub.epa.gov/adi/</a>.
This document comprises a list of 39 such documents added to the
ADD on September 22, 2026. Table 1 of this document lists the title of
each letter or memorandum. Complete copies of these documents may be
obtained from the ADD on the internet at: <a href="https://www.epa.gov/compliance/resources-and-guidance-documents-compliance-assistance">https://www.epa.gov/compliance/resources-and-guidance-documents-compliance-assistance</a>.
Table 1--Applicability Determinations, Regulatory Interpretations, Alternative Monitoring, and Other
Determinations
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Date of
Facility name Title Affected subpart response
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Imperial Zinc Corporation............... Applicability 40 CFR Part 63, Subpart 2025-06-30
Determination for Zinc TTTTTT.
Alloy Processing Facility.
City of Amarillo MSW Landfill........... Corrective Action Plan for 40 CFR Part 62, Subpart 2025-07-18
Landfill Gas Collection OOO; 40 CFR Part 63,
and Control System. Subpart AAAA.
Cheniere Energy Sabine Pass............. Alternative Monitoring 40 CFR Part 63, Subpart 2025-07-31
Plan for Stationary YYYY.
Turbines.
Cheniere Energy Corpus Christi Alternative Monitoring 40 CFR Part 63, Subpart 2025-07-31
Liquefaction. Plan for Stationary YYYY.
Turbines.
Alyeska Pipeline Service Company........ Regulatory Interpretation 40 CFR Part 63, Subpart 2025-08-07
for Reciprocating ZZZZ; 40 CFR Part 60,
Internal Combustion Subpart IIII.
Engines (RICE).
Eastman Chemical Company Longview Alternative Monitoring for 40 CFR Part 63, Subpart 2025-08-12
Facility. Rotary Kiln Incinerator XX; 40 CFR Part 63,
(RKI) Unassisted Backup Subpart CC.
Flare.
Hyliion, Inc............................ Regulatory Interpretation 40 CFR Part 60, Subpart 2025-09-11
for Generator Technology. IIII; 40 CFR Part 60,
Subpart JJJJ.
Heartland Corn Products................. Alternative Monitoring for 40 CFR Part 63, Subpart 2025-09-09
Stationary Gas Turbines. YYYY.
MSU Simon Power Plant................... Alternative Monitoring for 40 CFR Part 63, Subpart 2025-09-17
Stationary Gas Turbines. YYYY.
Spokane Northside Landfill.............. Alternative Test Method 40 CFR Part 60, Subpart Cc 2025-09-18
for Condensate Trap
Sampling at Landfill.
Potrero Hills Landfill.................. Alternative Temperature 40 CFR Part 62, Subpart 2025-09-17
for Landfill Gas OOO; 40 CFR Part 63,
Extraction Wells. Subpart AAAA.
El Sobrante Landfill.................... Alternative Temperature 40 CFR Part 62, Subpart 2025-09-30
for Landfill Gas OOO; 40 CFR Part 63,
Extraction Wells. Subpart AAAA.
RYAM/Rayonier Performance Fibers--RPF Alternative Monitoring for 40 CFR Part 63, Subpart 2025-10-03
Fernandina Beach Plant. Dry Electrostatic DDDDD.
Precipitator and Wet
Scrubber.
TradeBe Environmental Services.......... Alternative Monitoring for 40 Part 60, Subpart J; 40 2025-10-06
Thermal Oxidizer Units. CFR Part 60, Subpart Ja.
International Paper--Bogalusa Mill...... Alternative Monitoring for 40 CFR Part 63, Subpart S. 2025-10-06
Closed-Vent Systems and
Pulping Process
Condensate Closed-
Collection Systems.
Specialty Granules LLC Annapolis Plant.. Applicability 40 CFR Part 60, Subpart 2025-10-14
Determination for Rotary UUU.
Dryer.
City of High Point--Eastside Wastewater Alternative Monitoring for 40 CFR Part 60, Subpart 2025-11-03
Treatment Plant. Sorbent Polymer Composite MMMM.
Material Absorber.
TC Energy Columbia Gulf Transmission-- Alternative Monitoring 40 CFR Part 63, Subpart 2025-11-14
Rayne Compressor Station. Plan for Stationary YYYY.
Turbines.
TC Energy Columbia Gulf Transmission-- Alternative Monitoring 40 CFR Part 63, Subpart 2025-11-14
Delhi Compressor Station. Plan for Stationary YYYY.
Turbines.
LBWL Delta Energy Park.................. Request for Operating 40 CFR Part 63, Subpart 2025-12-17
Limits/Monitoring YYYY.
Petitions for Stationary
Gas Turbines.
Tesoro Kenai Refinery................... Performance Test Extension 40 CFR Part 60, Subpart 2026-01-27
for Cogeneration Turbines. KKKK.
ME Global............................... Applicability 40 CFR Part 63, Subpart A; 2026-04-02
Determination for 40 CFR Part 63, Subpart
Electric Arc Furnaces. ZZZZZ.
IKO--Maxville Plant..................... Performance Test Waiver 40 CFR Part 60, Subpart Kc 2026-04-02
for Storage Vessels at an
Asphalt Shingle
Manufacturing Facility.
Rubble Reprocessing, LLC................ Alternative Monitoring 40 CFR Part 60, Subpart 2026-04-23
Parameters for an Air CCCC.
Pollution Control Device.
Imperial Zinc Corporation............... Applicability 40 CFR Part 63, Subpart 2026-04-29
Determination for Zinc TTTTTT.
Alloy Processing Facility.
[[Page 68512]]
Loess Hills Regional Landfill--Malvern Alternative Temperature 40 CFR Part 62, Subpart 2026-05-01
IA. for Landfill Gas OOO; 40 CFR Part 63,
Extraction Wells. Subpart AAAA.
ConocoPhillips Alaska, Inc.............. Performance Test Waiver 40 CFR Part 61, Subpart E. 2026-05-05
for Solid Waste
Incinerator.
Honda Development and Manufacturing of Applicability 40 CFR Part 63, Subpart 2026-05-09
America. Determination for an Iron ZZZZZ.
and Steel Foundry.
Golden Valley Electric Association...... Alternative Test Date for 40 CFR Part 63, Subpart 2026-05-21
Coal-Fired Boilers. UUUUU.
UniSea, Inc............................. Performance Test Extension 40 CFR Part 63, Subpart 2026-06-02
for Boilers. JJJJJ.
OQ Chemical............................. Applicability 40 CFR Part 63, Subpart F; 2026-06-10
Determination for Fence 40 CFR Part 63, Subpart H.
Line Monitoring
Requirements.
Clearwater Paper--Augusta Mill.......... Alternative Test Method 40 CFR Part 63, Subpart S. 2026-06-21
for Measuring Methanol
Vent Gas Concentrations.
East Kentucky Power Cooperative......... Regulatory Interpretation 40 CFR Part 63, Subpart 2026-06-24
for the Operation of ZZZZ.
Stationary Emergency
Engines.
NRG Energy.............................. Regulatory Interpretation 40 CFR Part 63, Subpart 2026-06-24
for the Operation of ZZZZ.
Stationary Emergency
Engines.
Mid-Valley Landfill..................... Alternative Temperature 40 CFR Part 62, Subpart 2026-07-07
for Landfill Gas OOO; 40 CFR Part 63,
Extraction Wells. Subpart AAAA.
Los Reales Landfill..................... Alternative Temperature 40 CFR Part 63, Subpart 2026-07-07
for Landfill Gas AAAA.
Extraction Wells.
South Carolina Department of Regulatory Interpretation 40 CFR Part 60, Subpart 2026-07-15
Environmental Services. for Waste Burning Kiln CCCC; 40 CFR Part 60,
Emission Limitations. Subpart DDDD.
H&T Recharge (Panasonic Energy)......... Alternative Monitoring for 40 CFR Part 63, Subpart T. 2026-07-15
Halogenated Solvent
Cleaning.
Gulf Coast Growth Ventures.............. Alternative Monitoring for 40 CFR Part 63, Subpart G. 2026-07-16
a Monoethylene Glycol
Unit.
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II. Broadly Applicable Alternative Test Method
A. Background
This document identifies four broadly applicable alternative test
methods the EPA approved between January 1, 2025, and December 31,
2025. Two additional broadly applicable alternative test methods are
identified in this notice, one from 2022 and one from 2024, which were
inadvertently omitted from the previous annual notices. See Table 2 of
this document for the summary of these broadly applicable alternative
test methods. Source owners and operators may voluntarily use these
broadly applicable alternative test methods in lieu of otherwise
required test methods or related testing procedures. Use of these
broadly applicable alternative test methods is not intended to and
should not change the applicable emission standards.
The Administrator has the authority to approve the use of
alternative test methods for compliance with requirements under 40 CFR
parts 59, 60, 61, 63, and 65.\4\ The criteria for approval and
procedures for submission and review of broadly applicable alternative
test methods are explained in 72 FR 4257 (January 30, 2007), which is
available at <a href="https://www.epa.gov/emc/broadly-applicable-approved-alternative-test-methods">https://www.epa.gov/emc/broadly-applicable-approved-alternative-test-methods</a>. As explained in the 2007 notice, we will
announce approvals for broadly applicable alternative test methods at
<a href="https://www.epa.gov/emc/broadly-applicable-approved-alternative-test-methods">https://www.epa.gov/emc/broadly-applicable-approved-alternative-test-methods</a> as they are issued. We will also publish a notice in the
Federal Register that summarizes the previous year's approvals.
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\4\ This authority is found in 40 CFR 60.8(b)(3),
61.13(h)(1)(ii), and 63.7(e)(2)(ii). Additional and similar
authority can be found in 40 CFR 59.104(f) and 65.158(a)(2).
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We review numerous source-specific requests for alternatives and
modifications to test methods and procedures. Based on these reviews,
we sometimes find that test method modifications or alternatives would
be equally valid and appropriate to apply to other sources within a
particular class, category, or subcategory. Therefore, where either a
method modification or an alternative method is clearly broadly
applicable to a class, category, or subcategory of sources, we will
approve its use for all appropriate sources and situations. When
appropriate, approval of broadly applicable test methods is both
equitable and efficient.
Use of approved alternative test methods is not mandatory but
rather permissive. Sources are not required to employ such a method but
may choose to do so in appropriate circumstances. However, as specified
in 40 CFR 63.7(f)(5), a source owner or operator electing to use an
alternative method for 40 CFR part 63 standards must continue to use
the alternative method until otherwise authorized. Source owners or
operators should, therefore, review the specific broadly applicable
alternative method approval decision at <a href="https://www.epa.gov/emc/broadly-applicable-approved-alternative-test-methods">https://www.epa.gov/emc/broadly-applicable-approved-alternative-test-methods</a> before electing to
employ any alternative method. Source owners or operators choosing to
use a broadly applicable alternative should also notify their
regulatory agency prior to using the alternative.
B. Approved Alternative Test Methods and Modifications to Test Methods
Table 2 of this notice summarizes the following information for the
six broadly applicable alternative test methods: the alternative method
designation number; date of approval letter; test methods affected;
sources allowed to use the alternative; and method modifications or
alternative methods allowed. For more detailed
[[Page 68513]]
information, please refer to the complete copies of these approval
documents available at <a href="https://www.epa.gov/emc/broadly-applicable-approved-alternative-test-methods">https://www.epa.gov/emc/broadly-applicable-approved-alternative-test-methods</a>.
The EPA will revisit approvals of alternative test methods in
response to written requests or objections indicating that a particular
approved alternative test method either should not be broadly
applicable or that its use is not appropriate or should be limited in
some way. Any objection to a broadly applicable alternative test
method, as well as the resolution of that objection, will be announced
at <a href="https://www.epa.gov/emc/broadly-applicable-approved-alternative-test-methods">https://www.epa.gov/emc/broadly-applicable-approved-alternative-test-methods</a> and in a subsequent Federal Register notice. If we decide
to retract a broadly applicable test method, we will likely consider
the need for an appropriate transition period for users either to
request case-by-case approval or to transition to an approved method.
Table 2--Broadly Applicable Alternative Test Methods and Modifications to Test Methods \a\
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Sources allowed
Alternative method designation Date of Test method(s) to use the Method modifications
No. approval letter affected alternative and alternatives you
method may use
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ALT-152-A..................... August 13, 2024. EPA Method 9--Visual All sources As an alternative to
Determination of the subject to section 3.2 of EPA
Opacity of Emissions training and Method 9--training
from Stationary certification for certification
Sources (40 CFR Part requirements in procedures required
60, Appendix A-4). section 3.2 of for opacity
EPA Method 9. observers--you may
use Compliance
Assurance
Associates, Inc.
virtual reality
headset-based
alternative method
for conducting
Method 9 EPA
training and
certification as
described in ALT-
152.
ALT-152-B..................... September 29, Method 9--Visual All sources As an alternative to
2025. Determination of the subject to section 3.2 of EPA
Opacity of Emissions training and Method 9--training
from Stationary certification for certification
Sources (40 CFR Part requirements in procedures required
60, Appendix A-4). section 3.2 of for opacity
EPA Method 9. observers--you may
use VR Smoke School,
LLC virtual reality
headset-based
alternative method
for conducting
Method 9 EPA
training and
certification as
described in ALT-
152.
ALT-158....................... March 27, 2025.. Method 21-- Sources subject As an alternative to
Determination of to Standards of OGI or EPA Method
volatile organic Performance for 21, you may use the
compound leaks (40 Crude Oil and Xplorobot Laser Gas
CFR Part 60, Natural Gas Imager and
Appendix A-7) Facilities for associated protocol
Determination of Which when conducting
Volatile Organic Construction, follow-up actions as
Compound and Modification or described in 40 CFR
Greenhouse Gas Leaks Reconstruction 60.5398b(b)(5)(iv)
Using Optical Gas Commenced After and for verification
Imaging (OGI) (40 December 6, of repairs in 40 CFR
CFR Part 60, 2022 (40 CFR 60.5397b(h) and
Appendix K). 60.5398b in 40 60.5416b(b).
CFR Part 60,
Subpart OOOOb).
ALT-159....................... June 25, 2025... EPA Method 18-- Sources subject As an alternative to
Measurement of to Standards of EPA Method 18, you
gaseous organic Performance for may use EPA Method
compound emissions Stationary 320 to measure
by gas Spark Ignition methane and ethane
chromatography (40 Internal for the purpose of
CFR Part 60, Combustion excluding those
Appendix A-6). Engines (40 CFR compounds from the
Part 60, total VOC
Subpart JJJJ). measurement measured
by EPA Method 25A as
required by 40 CFR
60.4244 and Table 2
of 40 CFR Part 60
Subpart JJJJ.
EPA Method 320--
Measurement of Vapor
Phase Organic and
Inorganic Emissions
by Extractive
Fourier Transform
Infrared (FTIR)
Spectroscopy (40 CFR
Part 63, Appendix
A).
[[Page 68514]]
ALT 160....................... July 27, 2022... SW-846 Method 8270D: Sources subject As alternatives to SW-
Semivolatile Organic to National 846 Methods 8270D
Compounds by Gas Emission and 8015C, you may
Chromatography/Mass Standards for use the updated
Spectrometry (GC/MS) Hazardous Air method SW-846 Method
(https:// Pollutant 8270E for analysis
archive.epa.gov/epa/ Emissions for of semivolatile
hw-sw846/sw-846-test- Polyvinyl organic compounds
method-8270d- Chloride and (SVOC) in stripped
semivolatile-organic- Copolymers resin and wastewater
compounds-gas- Production (40 samples, and SW-846
chromatographymass- CFR Part 63, Method 8015D for the
spectrometry.html). Subpart analysis of alcohol
SW-846 Method 8015C: HHHHHHH). compounds in
Nonhalogenated stripped resin and
Organics by Gas wastewater samples.
Chromatography The approval letter
(https://www.epa.gov/ includes several
hw-sw846/sw-846-test- caveats which must
method-8015c- be adhered to when
nonhalogenated- using this
organics-gas- alternative method.
chromatography). SW-846 Method 8270D:
Semivolatile Organic
Compounds by Gas
Chromatography/Mass
Spectrometry (GC/MS)
(<a href="https://www.epa.gov/hw-sw846/sw-846-test-method-8270e-semivolatile-organic-compounds-gas-chromatographymass">https://www.epa.gov/hw-sw846/sw-846-test-method-8270e-semivolatile-organic-compounds-gas-chromatographymass</a> chromatographymass).
SW-846 Method 8015C:
Nonhalogenated
Organics by Gas
Chromatography
(<a href="https://www.epa.gov/esam/epa-method-8015d-sw-846-nonhalogenated-organics-using-gcfid">https://www.epa.gov/esam/epa-method-8015d-sw-846-nonhalogenated-organics-using-gcfid</a> gcfid).
ALT-162....................... September 10, EPA Method 25B with Sources subject As an alternative to
2025. the option to to bulk using EPA Method
exclude methane and gasoline 25B, with the option
ethane content terminal and to use EPA Method
measurements using gasoline 18, you may use the
EPA Method 18. distribution Infrared Industries
EPA Method 25B-- NSPS and NESHAP IR-208 and IR-8400DC
Determination of regulations, instruments with non-
total gaseous specified below. dispersive infrared
organic Standards of light absorption
concentration using Performance for (NDIR) gas analyzers
a nondispersive Bulk Gasoline with methane
infrared analyzer Terminals (40 compensation Model
(40 CFR Part 60, CFR Part 60, IR-8400DC to conduct
Appendix A-7). Subpart XX). emission monitoring
EPA Method 18-- Standards of and Model IR-208 to
Measurement of Performance for conduct performance
gaseous organic Bulk Gasoline testing and to serve
compound emissions Terminals that as the reference
by gas Commenced method measurement
chromatography (40 Construction, device for relative
CFR Part 60, Modification, accuracy testing
Appendix A-6). or (RATA) to measure
Reconstruction total nonmethane
After June 10, gaseous organic
2022 (40 CFR compound (TNMOC)
Part 60, emissions.
Subpart XXa). The letter of
approval includes
several caveats
which must be
adhered to when
using this
alternative method.
[[Page 68515]]
................ ..................... National
Emission
Standards for
Gasoline
Distribution
Facilities
(Bulk Gasoline
Terminals and
Pipeline
Breakout
Stations) (40
CFR Part 63,
Subpart R).
National
Emission
Standards for
Hazardous Air
Pollutants for
Source
Category:
Gasoline
Distribution
Bulk Terminals,
Bulk Plants,
and Pipeline
Facilities (40
CFR Part 63,
Subpart BBBBBB).
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\a\ Source owners or operators should review the specific broadly applicable alternative method approval letter
at <a href="https://www.epa.gov/emc/broadly-applicable-approved-alternative-test-methods">https://www.epa.gov/emc/broadly-applicable-approved-alternative-test-methods</a> before electing to employ any
alternative test method.
Panagiotis Tsirigotis,
Director, Office of Clean Air Programs.
[FR Doc. 2026-22164 Filed 10-29-26; 8:45 am]
BILLING CODE 6569-60-P
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