Center for Biological Diversity v. United States Environmental Protection Agency
ELR Citation: 55 ELR 20111 No(s). 23-9503 (10th Cir. Aug 12, 2025)
The Tenth Circuit granted in part and denied in part a challenge to EPA's approval of Colorado's 2019 SIP revisions. An environmental group argued the revisions, which changed the wording of a permit requirement for new emission sources and added to the definition of a key threshold to evaluate comp...