The D.C. Circuit upheld EPA’s decision denying environmental groups’ request to add coal mines to the regulated list of stationary source categories under the CAA. In denying the groups’ petition for rulemaking, EPA made it clear that the denial was not a determination as to whether coal ...

The D.C. Circuit denied industry groups' petition for review challenging EPA's 2013 primary NAAQS for fine particulate matter. In the final rule, EPA lowered the level of the particulate matter NAAQS from 15.0 μg/m3 to 12.0 μg/m3, a level slightly lower than the lowest concentrations reported as c...