Air Plan Approval; Illinois; NAAQS Update

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-2022-0673; FRL-10900-01-R5] AGENCY: Environmental Protection Agency (EPA). ACTION: Proposed rule. SUMMARY: The Environmental Protection Agency (EPA) is proposing to approve a State Implementation Plan (SIP) revision submitted by the Illinois Environmental Protection Agency (IEPA or Illinois). The revision, submitted on July 8, 2022, incorporates revisions to the Illinois air pollution control rules entitled “Part 243—Ambient Air Quality Standards” and also updates the “List of Designated Reference and Equivalent Methods” in response to EPA rulemakings and changes to the National Ambient Air Quality Standards (NAAQS) that EPA adopted in 2021. DATES: Comments must be received on or before August 23, 2023. ADDRESSES: Submit your comments, identified by Docket ID No. EPA-R05-OAR-2022-0673 at https://www.regulations.gov , or via email to blakley.pamela@epa.gov . For comments submitted at Regulations.gov, follow the online instructions for submitting comments. Once submitted, comments cannot be edited or removed from Regulations.gov . For either manner of submission, 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 submissions (audio, video, etc.) must be accompanied by a written comment. The written comment…