ELR Citation: 48 ELR 20125
No(s). 16-1413 (D.C. Cir. Jul 20, 2018)

The D.C. Circuit denied environmental groups' petition to review a 2016 rule that EPA uses to determine whether an event caused by recurring activity is "exceptional" and thus exempt from a state's emissions report. The groups argued that EPA misread the definition of "natural event" under the excep...