ELR Citation: 49 ELR 20094
No(s). 16-1158 (D.C. Cir. May 31, 2019)

The D.C. Circuit dismissed in part and denied in part a petition to review EPA's 2016 revisions to its ambient air quality monitoring system regulations. An environmental group argued that the revisions violated the CAA by not requiring states to give advance notice and hold a public hearing when ma...