EPA Proposes Approval of Mississippi's Revised Prevention of Significant Deterioration Regulations

Summary

The US Environmental Protection Agency (EPA) is proposing to approve a portion of a revision to the Mississippi State Implementation Plan (SIP), which modifies the state's permitting regulations to address nitrogen oxide emissions as a precursor to ozone, in compliance with the 1997 8-Hour Ozone National Ambient Air Quality Standards (NAAQS) Implementation Rule-Phase II.