EPA Approves Air Quality Implementation Plans for Washington DC, Maryland, and Virginia

Summary

The Environmental Protection Agency (EPA) is finalizing actions to remove codification of certain State Implementation Plan (SIP) approvals that were vacated by the US Court of Appeals for the District of Columbia Circuit and remanded to EPA. The EPA is also vacating an indefinite stay on a conditional approval promulgated on April 17, 2003, for the 1-hour ozone attainment demonstration and the 1996-1999 rate-of-progress plans for the Washington DC ozone nonattainment area.