Environmental Protection Agency
On January 8, 2026, the EPA published a final rule in the Federal Register approving revisions to the California State Implementation Plan (SIP). In the final rule, the EPA included inaccurate amendatory instructions that prevented full incorporation of the final rule into the Code of Federal Regulations (CFR). This correction will ensure the revisions the EPA approved for the Mojave Desert Air Quality Management District's (MDAQD) portion of the California SIP are fully reflected in the CFR.
Document Headings Document headings vary by document type but may contain the following: the agency or agencies that issued and signed a document the number of the CFR title and the number of each part the document amends, proposes to amend, or is directly related to the agency docket number / agency internal file number the RIN which identifies each regulatory action listed in the Unified Agenda of Federal Regulatory and Deregulatory Actions See the Document Drafting Handbook for more details. Environmental Protection Agency 40 CFR Part 52 [EPA-R09-OAR-2024-0210; FRL-11949-03-R9] AGENCY: Environmental Protection Agency (EPA). ACTION: Correcting amendments. SUMMARY: On January 8, 2026, the EPA published a final rule in the Federal Register approving revisions to the California State Implementation Plan (SIP). In the final rule, the EPA included inaccurate amendatory instructions that prevented full incorporation of the final rule into the Code of Federal Regulations (CFR). This correction will ensure the revisions the EPA approved for the Mojave Desert Air Quality Management District's (MDAQD) portion of the California SIP are fully reflected in the CFR. DATES: This action is effective on April 2, 2026. FOR FURTHER INFORMATION CONTACT: La Kenya Evans-Hopper, EPA Region IX, 75 Hawthorne St., San Francisco, CA 94105; telephone number: (415) 972-3245; email address: evanshopper.lakenya@epa.gov . SUPPLEMENTARY INFORMATION: This action corrects an error in the amendatory instructions in a final rulemaking affecting 40 CFR part 52 . On January 8, 2026 ( 91 FR 613 ), the EPA published a final rule approving amended or rescinded prohibitory and administrative rule revisions adopted by the Mojave Desert Air Quality Management District (MDAQMD) and submitted by the California Air Resources Board (CARB) as a revision to the California SIP. The EPA's January 8, 2026 final rule included amendatory instructions for section 52.220 (of title 40 of the CFR ) to add paragraph (c)(42)…
Other Federal Register documents from the same docket.
Citation: 91 FR 16555
