Regulation & law · 25/11/2011

EPA Approves Maryland's Air Quality Implementation Plan

The Environmental Protection Agency (EPA) has approved parts of the State of Maryland's plan to implement and maintain the 1997 8-hour ozone and fine particulate matter (PM 2.5) national ambient air quality standards, as well as the 2006 PM 2.5 NAAQS, in compliance with the Clean Air Act (CAA).