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regional haze

WildEarth Guardians v. United States Environmental Protection Agency

ELR Case

The Tenth Circuit denied petitions for review challenging EPA's approval of a regional cap-and-trade program regulating sulfur dioxide (SO2) emissions to address regional haze over the Colorado Plateau, a Class I area. Under the CAA's...

WildEarth Guardians v. U.S. Environmental Protection Agency

ELR Case

The Ninth Circuit upheld EPA's approval of Nevada's SIP for regional haze. In the SIP, Nevada provided reasonable progress goals for attaining natural visibility conditions at the Jarbridge Wilderness Area in remote northeastern Nevada...

Oklahoma v. United States Environmental Protection Agency

ELR Case

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 stringent regulations via a federal...

77 FR 57863

ELR Federal Agency Update

77 FR 49307

ELR Federal Agency Update

77 FR 24845

ELR Federal Agency Update

77 FR 24794

ELR Federal Agency Update

77 FR 24768

ELR Federal Agency Update