Regulation & law · 06/10/2014Updated: 10/17/2026 · 1 min read
EPA Approves Wisconsin Air Quality Plan Revisions
Summary
The Environmental Protection Agency (EPA) has approved revisions to Wisconsin's State Implementation Plan (SIP) for the Prevention of Significant Deterioration (PSD) and Nonattainment New Source Review (NNSR) programs, pursuant to the Clean Air Act (CAA).