Federal implementation plans (FIPs), §110(c)(1)
The Tenth Circuit upheld an EPA rule in which it rejected Oklahoma's regional haze plan to limit sulfur dioxide emissions at electric utility power plants and replaced it with its own more…
The Ninth Circuit denied a chemical company's petitions for review challenging EPA's partial disapproval of a proposed revision to Montana's SIP governing sulfur dioxide (SO2)…
The court holds that the U.S. Environmental Protection Agency (EPA) has the power under the Clean Air Act (CAA) to adopt de minimis exemptions for sources of pollution from particulate matter…
The court upholds the U.S. Environmental Protection Agency's (EPA's) redesignation of five parcels of tribal land as a nonfederal Class I area under the Clean Air Act (CAA) prevention of…