Air Plan Approval; State of Utah; Utah PM2.5 State Implementation Plan Revisions

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-R08-OAR-2020-0098; FRL-12594-01-R8] ( printed page 31901) AGENCY: Environmental Protection Agency (EPA). ACTION: Proposed rule. SUMMARY: The Environmental Protection Agency (EPA) is proposing to approve, through parallel processing, a State Implementation Plan (SIP) submission from the State of Utah with revisions to Utah Administrative Code (UAC), Utah State SIP, and the best available control measures/best available control technologies (BACM/BACT) determinations for five facilities found in the Salt Lake City, Utah nonattainment area (NAA) for the 2006 24-hour fine particulate matter with an aerodynamic diameter less than or equal to a nominal 2.5 microns (PM 2.5 ) National Ambient Air Quality Standard (NAAQS) (State of Utah draft dated May 20, 2025). The EPA is taking this action pursuant to the Clean Air Act (CAA or the Act). DATES: Written comments must be received on or before August 15, 2025. ADDRESSES: Submit your comments, identified by Docket ID No. EPA-R08-OAR-2020-0098, to the Federal Rulemaking Portal: https://www.regulations.gov . Follow the online instructions for submitting comments. Once submitted, comments cannot be edited or removed from https://www.regulations.gov . The EPA may publish any comment received to its public docket. Do not submit electronically any information you consider to be Confidential Business Information (CBI) or other information whose disclosure is restricted by statute. Multimedia …