Regulation & law · 29/10/2013

EPA Approves California's Plan to Address 1997 PM2.5 Standards

The Environmental Protection Agency (EPA) has approved a State implementation plan (SIP) revision submitted by California to address Clean Air Act (CAA) requirements for the 1997 annual and 24-hour national ambient air quality standard (NAAQS) for fine particulate matter (PM 2.5 ) in the Los Angeles-South Coast Air Basin (South Coast), effectively terminating sanctions clocks and a federal implementation plan (FIP) clock triggered by EPA's partial disapproval of a related SIP submission on November 5, 2011.