The D.C. Circuit upheld the emission standards EPA promulgated in 2012 for mercury and other listed hazardous air pollutants emitted by coal- and oil-fired electric utility steam generating units…

The D.C. Circuit upheld an EPA rule that added the gold mine ore processing and production area source category to the list of source categories to be regulated under CAA §112(c)(6). CAA §112(c)(6…