A district court rejected a group of mid-Atlantic states' claims that projects undertaken by an energy company at three of its coal-fired power plants in Pennsylvania violated the CAA's prevention of significant deterioration and new source performance standards requirements. The states sought an in...

The Ninth Circuit refused to rehear a case in which it previously ruled that environmental groups lacked standing to compel the Washington State Department of Ecology and other regional agencies to regulate greenhouse gas emissions from the state's five oil refineries under the CAA. One of the judge...

The D.C. Circuit denied a road building association's petition for review challenging EPA's CAA §209(e) regulations, which preempt certain state regulation of nonroad engines. In general, §209(e) preemption reaches nationwide. California, however, may adopt certain otherwise preempted regulations ...

A California court dismissed environmental groups' lawsuit against the California Department of Conservation, Division Oil, Gas and Geothermal Resources (DOGGR) for failing to comply with the California Environmental Quality Act in issuing permits for oil and gas wells that involve hydraulic fractur...

The D.C. Circuit vacated EPA's new source review (NSR) rule for Indian country, which established a federal implementation plan (FIP) covering all Indian country nationwide except where EPA had already approved a tribal NSR program or expressly authorized a SIP to be enforced. Because SIPs did not o...

A district court dismissed Native American and environmental groups' CAA citizen suit asking the court to order EPA to issue a final rule that establishes best available retrofit technology (BART) for the Navajo Generating Station, a coal-fired power plant in northern Arizona near the Grand Canyon. ...