Regulation & law · 29/12/2011

EPA Approves Oklahoma's Implementation Plan for Clean Air Act Requirements

The Environmental Protection Agency (EPA) has approved certain portions of Oklahoma's State Implementation Plan (SIP) to address Clean Air Act (CAA) requirements related to air emissions that contribute to nonattainment in other states for fine particulate matter (PM 2.5) and ozone National Ambient Air Quality Standards (NAAQS).