National Parks Conservation Ass'n v. United States Environmental Protection Agency

ELR Citation: 45 ELR 20185
No(s). 14-3147 (3d Cir. Sep 29, 2015)

The Third Circuit vacated and remanded EPA's approval of Pennsylvania's 2014 regional haze SIP. CAA Ā§169A requires states to evaluate the impact that emissions from certain sources of pollution within their borders have on atmospheric visibility in national parks and wilderness areas, known as Clas...