On July 6, 2011, EPA finalized the Cross-State Air Pollution Rule (CSAPR) under the Clean Air Act, which requires states take action to mitigate cross-border air pollution. The CSAPR, also known as the Clean Air Transport Rule, provides a national regulatory framework for reducing sulfur dioxide and nitrogen oxide emissions from more than 1,000 power plants in the eastern United States as they contribute detrimentally to the National Ambient Air Quality Standards for ozone and fine particulate matter in “downwind” states. The Rule requires significant reductions in sulfur dioxide and nitrogen oxide emissions that cross state lines. Plants in the 27… Read more