Energy & environment · 07/01/2010
EPA Proposes Approval of Maryland Air Quality Implementation Plan Revision for Philadelphia Nonattainment Area
The Environmental Protection Agency (EPA) is proposing to approve a revision to the Maryland State Implementation Plan (SIP) to meet Clean Air Act requirements for the Philadelphia moderate 1997 8-hour ozone nonattainment area, aiming to reduce ozone precursors and demonstrate further progress in reducing emissions.