Regulation & law · 16/10/2014Updated: 10/17/2026 · 1 min read

EPA Approves Wisconsin's Revised Air Quality Implementation Plan

The Environmental Protection Agency (EPA) has finalized the approval of Wisconsin's revised State Implementation Plan (SIP) to address disapprovals of two submissions related to the Prevention of Significant Deterioration (PSD) program and a partial disapproval under the Clean Air Act (CAA) of an 'infrastructure' SIP.