ELR Citation: 48 ELR 20156
No(s). 16-71933 (9th Cir. Aug 30, 2018)

The Ninth Circuit denied an environmental group's petition to review EPA's approval of a Montana SIP revision. The group argued that the approval was arbitrary and capricious because Montana's Department of Environmental Quality interpreted one of the SIP's provisions less stringently than the CAA a...