Energy & environment · 09/05/2025Updated: 10/16/2026 · 1 min read
Air Plan Approval; WA; Southwest Clean Air Agency; Revisions to Excess Emissions, Startup, Shutdown, and General Requirements
Summary
The Environmental Protection Agency (EPA) is approving Washington State Implementation Plan (SIP) revisions to the Southwest Clean Air Agency (SWCAA) air quality regulations submitted by the State of Washington, correcting a deficiency identified in 2015.
Original source language: Federal Register — Environmental Protection AgencyOpen original release →