Regulation & law · 25/09/2012

EPA Approves Pennsylvania's Air Quality Implementation Plan

The Environmental Protection Agency (EPA) has approved Pennsylvania's submittals for implementing the 1997 8-hour ozone and fine particulate matter (PM 2.5) National Ambient Air Quality Standards (NAAQS) and the 2006 PM 2.5 NAAQS, as required by the Clean Air Act (CAA).