ELR Citation: ELR 20135
No(s). 02-1387 (D.C. Cir. Jun 24, 2005)

The court remanded portions of a 2002 U.S. Environmental Protection Agency (EPA) rule interpreting when a major stationary source undertakes a "modification," thereby triggering the Clean Air Act's new source review (NSR) requirements. EPA erred in promulgating the clean unit applicability test, whi...