Air Plan Approval; Pennsylvania; Allegheny County Open Burning Revision and Addition of Mon Valley Air Pollution Episode Requirements

The Environmental Protection Agency (EPA) is approving a state implementation plan (SIP) revision submitted by the Pennsylvania Department of Environmental Protection (PADEP) on behalf of the Allegheny County Health Department (ACHD). The revision incorporates into the Pennsylvania SIP, particulate matter emission mitigation requirements for industry operating in the portion of Allegheny County known as the "Mon Valley" during weather-related pollution episodes. It also amends a portion of Allegheny County's open burning regulation, which was previously incorporated into Pennsylvania's SIP. EPA is approving this revision to the Allegheny County portion of the Pennsylvania SIP in accordance with the requirements of the Clean Air Act (CAA).