ELR Citation: 53 ELR 20134
No(s). 21-9509 (10th Cir. Aug 14, 2023)

The Tenth Circuit denied environmental groups' petition to review approval of Utah's July 2019 revised SIP addressing regional haze. The groups argued EPA abused its discretion by approving the SIP because Utah's alternative measure did not satisfy CAA national visibility goals, and that the Agency ...