Air Plan Approval; Michigan; Revisions to Part 1 and 2 Rules

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-R05-OAR-2022-0295; FRL-10162-05-R5] ( printed page 51518) AGENCY: Environmental Protection Agency (EPA). ACTION: Final rule. SUMMARY: The Environmental Protection Agency (EPA) is approving revisions to the Michigan State Implementation Plan (SIP) that Michigan's Department of Environment, Great Lakes, and Energy (EGLE) submitted on March 8, 2022. These revisions amend Michigan's SIP-approved rules for minor New Source Review (NSR) found in Michigan Air Pollution Control Rules Part 2, Air Use Approval. This action updates Michigan's minor NSR rules in the SIP to exempt certain processes and equipment from the requirement to obtain a preconstruction permit. DATES: This final rule is effective on December 18, 2025. ADDRESSES: EPA has established a docket for this action under Docket ID No. EPA-R05-OAR-2022-0295. All documents in the docket are listed on the https://www.regulations.gov website. Although listed in the index, some information is not publicly available, i.e., Confidential Business Information (CBI), Proprietary Business Information (PBI), 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 either through https://www.regulations.gov or at the Environmental Protection Agency, Region 5, Air and Radiation Division, 77 Wes…