Energy & environment · 28/04/2025Updated: 10/16/2026 · 1 min read
EPA Approves Redesignation of Allegheny County Area to Attainment for 2010 1-Hour Primary Sulfur Dioxide NAAQS
Summary
The Environmental Protection Agency (EPA) has approved a redesignation request and state implementation plan revision submitted by the Commonwealth of Pennsylvania on behalf of the Allegheny County Health Department (ACHD) for the Allegheny County Area.
Original source language: Federal Register — Environmental Protection AgencyOpen original release →