EPA Approves Revisions to Air Quality Implementation Plans for Delaware, DC, Maryland, Pennsylvania, and Virginia

Summary

The Environmental Protection Agency (EPA) has proposed to approve revisions to the State Implementation Plans (SIPs) for ozone in Delaware, the District of Columbia, Maryland, Pennsylvania, and Virginia, in response to requests from these states to comply with the Clean Air Act and the Photochemical Assessment Monitoring Stations (PAMS) regulations.