Środowisko i energia · 26/11/2010
EPA Approves Oklahoma State Implementation Plan Revisions for Air Quality
The Environmental Protection Agency (EPA) has approved parts of Oklahoma's State Implementation Plan (SIP) revisions, ensuring that the state's air emissions do not interfere with other states' air quality measures, in compliance with the 1997 ozone and fine particulate matter National Ambient Air Quality Standards (NAAQS).