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Final Rule

Air Plan Approval; California; Mojave Desert Air Quality Management District; Replacing Outdated Requirements

In Plain English

What is this Federal Register notice?

This is a final rule published in the Federal Register by Environmental Protection Agency. Final rules have completed the public comment process and establish legally binding requirements.

Is this rule final?

Yes. This rule has been finalized. It has completed the notice-and-comment process required under the Administrative Procedure Act.

Who does this apply to?

Consult the full text of this document for specific applicability provisions. The affected parties depend on the regulatory scope defined within.

When does it take effect?

This document has been effective since February 9, 2026.

Why it matters: This final rule amends regulations in 40 CFR Part 52.

📋 Related Rulemaking

NPRM 2025-12867 Proposed rule that led to this final rule
Linked by: title_cfr_agency (90% confidence)

Document Details

Document Number2026-00208
TypeFinal Rule
PublishedJan 8, 2026
Effective DateFeb 9, 2026
RIN-
Docket IDEPA-R09-OAR-2024-0210
Text FetchedYes

Agencies & CFR References

CFR References:

Linked CFR Parts

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Paired Documents

TypeProposedFinalMethodConf
proposed vs_final 2025-12867 2026-00208 title_cfr_agency 90%

Related Documents (by RIN/Docket)

Doc #TypeTitlePublished
2025-17528 Proposed Rule Air Plan Approval; California; Mojave De... Sep 11, 2025

External Links

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Full Document Text (4,667 words · ~24 min read)

Text Preserved
<RULE> ENVIRONMENTAL PROTECTION AGENCY <CFR>40 CFR Part 52</CFR> <DEPDOC>[EPA-R09-OAR-2024-0210; FRL-11949-02-R9]</DEPDOC> <SUBJECT>Air Plan Approval; California; Mojave Desert Air Quality Management District; Replacing Outdated Requirements</SUBJECT> <HD SOURCE="HED">AGENCY:</HD> Environmental Protection Agency (EPA). <HD SOURCE="HED">ACTION:</HD> Final rule. <SUM> <HD SOURCE="HED">SUMMARY:</HD> The Environmental Protection Agency (EPA) is taking final action to approve revisions to the Mojave Desert Air Quality Management District (MDAQMD or “District”) portion of the California State Implementation Plan (SIP). These revisions concern certain amended or rescinded prohibitory and administrative rules. We are approving action on amended or rescinded rules that regulate the pollutants under the Clean Air Act (CAA or “Act”). </SUM> <EFFDATE> <HD SOURCE="HED">DATES:</HD> This rule is effective February 9, 2026. </EFFDATE> <HD SOURCE="HED">ADDRESSES:</HD> The EPA has established a docket for this action under Docket ID No. EPA-R09-OAR-2024-0210. All documents in the docket are listed on the <E T="03">https://www.regulations.gov</E> website. Although listed in the index, some information is not publicly available, <E T="03">e.g.,</E> Confidential Business Information (CBI) or other information whose disclosure is restricted by statute. Certain other material, such as copyrighted material, is not placed on the internet and will be publicly available only in hard copy form. Publicly available docket materials are available through <E T="03">https://www.regulations.gov,</E> or please contact the person identified in the <E T="02">FOR FURTHER INFORMATION CONTACT</E> section for additional availability information. If you need assistance in a language other than English or if you are a person with a disability who needs a reasonable accommodation at no cost to you, please contact the person identified in the <E T="02">FOR FURTHER INFORMATION CONTACT</E> section. <FURINF> <HD SOURCE="HED">FOR FURTHER INFORMATION CONTACT:</HD> La Kenya Evans-Hopper, EPA Region IX, 75 Hawthorne St., San Francisco, CA 94105; telephone number: (415) 972-3245; email address: <E T="03">evanshopper.lakenya@epa.gov.</E> </FURINF> <SUPLINF> <HD SOURCE="HED">SUPPLEMENTARY INFORMATION:</HD> Throughout this document, “we,” “us,” and “our” refer to the EPA. <HD SOURCE="HD1">Table of Contents </HD> <EXTRACT> <FP SOURCE="FP-2">I. Proposed Action</FP> <FP SOURCE="FP-2">II. Public Comments and EPA Responses</FP> <FP SOURCE="FP-2">III. EPA Action</FP> <FP SOURCE="FP-2">IV. Incorporation by Reference</FP> <FP SOURCE="FP-2">V. Statutory and Executive Order Reviews</FP> </EXTRACT> <HD SOURCE="HD1">I. Proposed Action</HD> On September 11, 2025 (90 FR 43971), the EPA proposed to approve several rules and rule rescissions for the California SIP. Table 1 lists the rules submitted for approval as part of the MDAQMD portion of the SIP that are covered by this final action with the dates they were adopted by the MDAQMD and submitted to the EPA by CARB. Table 2 lists the rules (excluding Regulation VII rules) submitted for rescission from the MDAQMD portion of the SIP that are covered by this final action with the dates that they were adopted by the MDAQMD, the dates they were submitted by the California Air Resources Board (CARB), and the dates (and associated <E T="04">Federal Register</E> (FR) citations) that the rules were previously approved by the EPA. Table 3 lists the rules from Regulation VII submitted for rescission that are associated with the applicable SIP for the San Bernardino County portion of the MDAQMD portion of the California SIP, and Table 4 lists the rules from Regulation VII submitted for rescission that are associated with the applicable SIP for the Riverside County portion of the MDAQMD portion of the California SIP. <GPOTABLE COLS="5" OPTS="L2,nj,i1" CDEF="s50,10,r100,r50,r50"> <TTITLE>Table 1—Submitted Rules Used To Replace SIP Approved Rules</TTITLE> <CHED H="1">Local agency</CHED> <CHED H="1">Rule No.</CHED> <CHED H="1">Rule title</CHED> <CHED H="1">Adopted/amended date</CHED> <CHED H="1">Submittal date</CHED> <ROW> <ENT I="01">MDAQMD</ENT> <ENT>January 10, 2024.</ENT> </ROW> <ROW> <ENT I="01">MDAQMD</ENT> <ENT>701</ENT> <ENT>Air Pollution Emergency Contingency Actions</ENT> <ENT>September 26, 2022</ENT> <ENT>May 11, 2023.</ENT> </ROW> <ROW> <ENT I="01">MDAQMD</ENT> <ENT>Fugitive Emissions of VOCs from Components at Pipeline Transfer Stations</ENT> <ENT>October 26, 1994</ENT> <ENT>January 10, 2024.</ENT> </ROW> <ROW> <ENT I="01">MDAQMD</ENT> <ENT>Wood Products Coating Operations</ENT> <ENT>August 24, 2020</ENT> <ENT>January 10, 2024.</ENT> </ROW> <TNOTE> <SU>a</SU>  The January 10, 2024 SIP submission requests re-approval of existing SIP MDAQMD Rules 464, 1102 and 1114 to extend the applicability of the SIP rule throughout the District. See CARB Executive Order S-23-018, dated December 27, 2023, Attachment A. </TNOTE> </GPOTABLE> <GPOTABLE COLS="6" OPTS="L2,nj,i1" CDEF="s100,r50,r50,r50,r50,r50"> <TTITLE>Table 2—Submitted Rule Rescissions</TTITLE> [Excluding Regulation VII rules] <CHED H="1">Local agency and rule No.</CHED> <CHED H="1">Title</CHED> <CHED H="1">Adopted/amended date</CHED> <CHED H="1">SIP approval date and FR citation</CHED> <CHED H="1">Date of rescission by MDAQMD</CHED> <CHED H="1">Submittal date</CHED> <ROW> <ENT I="01"> South Coast Air Quality Management District (SCAQMD) Rule 405  <SU>a</SU> </ENT> <ENT>Solid Particulate Matter—Weight</ENT> <ENT>May 7, 1976</ENT> <ENT>September 28, 1981, 46 FR 47451</ENT> <ENT>February 28, 2022</ENT> <ENT>May 11, 2023.</ENT> </ROW> <ROW> <ENT I="01">SCAQMD Rule 409</ENT> <ENT>Combustion Contaminants</ENT> <ENT>August 7, 1981</ENT> <ENT>July 6, 1982, 47 FR 29231</ENT> <ENT>April 25, 2022</ENT> <ENT>May 11, 2023.</ENT> </ROW> <ROW> <ENT I="01"> Southern California Air Pollution Control District (SoCalAPCD) Rule 432  <SU>a</SU> </ENT> <ENT>Gasoline Specifications</ENT> <ENT>May 7, 1976</ENT> <ENT>June 14, 1978, 43 FR 25684</ENT> <ENT>April 25, 2022</ENT> <ENT>September 23, 2022.</ENT> </ROW> <ROW> <ENT I="01">San Bernardino County Air Pollution Control District (SBCAPCD) Rule 432</ENT> <ENT>Gasoline Specifications</ENT> <ENT>February 1, 1977</ENT> <ENT>September 8, 1978, 43 FR 40011</ENT> <ENT>April 25, 2022</ENT> <ENT>September 23, 2022.</ENT> </ROW> <ROW> <ENT I="01"> SCAQMD Rule 464  <ENT>January 10, 2024.</ENT> </ROW> <ROW> <ENT I="01">SoCalAPCD Rule 464</ENT> <ENT>Oil and Water Separators</ENT> <ENT>May 7, 1976</ENT> <ENT>June 14, 1978, 43 FR 25684</ENT> <ENT>August 28, 2023</ENT> <ENT>January 10, 2024.</ENT> </ROW> <ROW> <ENT I="01">SCAQMD Rule 466</ENT> <ENT>Pumps and Compressors</ENT> <ENT>October 7, 1983</ENT> <ENT>January 15, 1987, 52 FR 1627</ENT> <ENT>June 26, 2023</ENT> <ENT>January 10, 2024.</ENT> </ROW> <ROW> <ENT I="01">SBCAPCD Rule 466</ENT> <ENT>Pumps and Compressors</ENT> <ENT>February 1, 1977</ENT> <ENT>September 8, 1978, 43 FR 40011</ENT> <ENT>June 26, 2023</ENT> <ENT>January 10, 2024.</ENT> </ROW> <ROW> <ENT I="01">SCAQMD Rule 466.1</ENT> <ENT>Valves and Flanges</ENT> <ENT>May 2, 1980</ENT> <ENT>July 8, 1982, 47 FR 29668</ENT> <ENT>June 26, 2023</ENT> <ENT>January 10, 2024.</ENT> </ROW> <ROW> <ENT I="01">SCAQMD Rule 467</ENT> <ENT>Pressure Relief Devices</ENT> <ENT>March 5, 1982</ENT> <ENT>November 16, 1983, 48 FR 52054</ENT> <ENT>June 26, 2023</ENT> <ENT>January 10, 2024.</ENT> </ROW> <ROW> <ENT I="01">SBCAPCD Rule 467</ENT> <ENT>Pressure Release Devices</ENT> <ENT>February 1, 1977</ENT> <ENT>September 8, 1978, 43 FR 40011</ENT> <ENT>June 26, 2023</ENT> <ENT>January 10, 2024.</ENT> </ROW> <ROW> <ENT I="01"> SoCalAPCD Rule 470  <ENT>November 30, 2022.</ENT> </ROW> <ROW> <ENT I="01">SBCAPCD Rule 470</ENT> <ENT>Asphalt Air Blowing</ENT> <ENT>February 1, 1977</ENT> <ENT>September 8, 1978, 43 FR 40011</ENT> <ENT>August 22, 2022</ENT> <ENT>November 30, 2022.</ENT> </ROW> <ROW> <ENT I="01">SBCAPCD Rule 480</ENT> <ENT>Natural Gas Fired Control Devices</ENT> <ENT>February 20, 1979</ENT> <ENT>January 27, 1981, 46 FR 8471</ENT> <ENT>September 26, 2022</ENT> <ENT>May 11, 2023.</ENT> </ROW> <ROW> <ENT I="01"> SCAQMD Rule 1101  <ENT>Secondary Lead Smelters/Sulfur Oxides</ENT> <ENT>October 7, 1977</ENT> <ENT>September 2, 1981, 46 FR 43968</ENT> <ENT>June 26, 2023</ENT> <ENT>January 10, 2024.</ENT> </ROW> <ROW> <ENT I="01">SCAQMD Rule 1104</ENT> <ENT>Wood Flat Stock Coatings Operations</ENT> <ENT>March 1, 1991</ENT> <ENT>June 23, 1994, 59 FR 32354</ENT> <ENT>August 28, 2023</ENT> <ENT>January 10, 2024.</ENT> </ROW> <ROW> <ENT I="01">SCAQMD Rule 1175</ENT> <ENT>Control of Emissions from the Manufacture of Polymeric Cellular (Foam) Products</ENT> <ENT>January 5, 1990</ENT> <ENT>October 26, 1992, 57 FR 48457</ENT> <ENT>September 25, 2023</ENT> <ENT>January 10, 2024.</ENT> </ROW> <ROW> <ENT I="01">SCAQMD Rule 1176</ENT> <ENT>Sumps and Wastewater Separators</ENT> <ENT>January 5, 1990</ENT> <ENT>October 26, 1992, 57 FR 48457</ENT> <ENT>August 28, 2023</ENT> <ENT>January 10, 2024.</ENT> </ROW> <TNOTE> <SU>a</SU>  SIP applicability was extended to the Southeast Desert Air Basin portion of Riverside County effective June 9, 1982. See 47 FR 25013 (June 9, 1982). </TNOTE> <TNOTE> <SU>b</SU>  The November 30, 2022 SIP submission also listed SCAQMD Rule 470. However, the version of Rule 470 that is currently part of the SIP for the Riverside County portion of the MDAQMD was adopted by the SoCalAPCD. </TNOTE> </GPOTABLE> <GPOTABLE COLS="6" OPTS="L2,nj,i1" CDEF="s100,r50,r50,r50,r50,r50"> <TTITLE>Table 3—Submitted Rule Rescissions</TTITLE> [Regulation VII rules applicable in the San Bernardino Cou ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ Preview showing 10k of 35k characters. Full document text is stored and available for version comparison. ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
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