Air Plan Approval; Wisconsin; SIP Alignment Revision

The Environmental Protection Agency (EPA) is approving an October 27, 2023, submittal from the Wisconsin Department of Natural Resources (WDNR) to align provisions approved in the Wisconsin State Implementation Plan (SIP) with current Wisconsin administrative rules and statutes. WDNR requested that certain provisions previously approved into the Wisconsin SIP under now obsolete numbering schemes be renumbered to ensure citations in the Wisconsin SIP reflect the current numbering systems of the Wisconsin Administrative Code (WAC) and the Wisconsin Statutes (Wis. Stats.). WDNR also requested that EPA approve rule and statute provisions that have been revised since they were approved into the Wisconsin SIP. Finally, WDNR requested removal of rules and statutes from the Wisconsin SIP that are no longer in effect in Wisconsin. Approval of these changes in the Wisconsin SIP will not impact the state's air quality or ability to meet Clean Air Act (CAA) requirements. EPA proposed to approve this action on May 16, 2024, and received no comments.