A district court dismissed individuals' CAA citizen suit against an oil company for emission violations at the company's refinery, olefins plant, and chemical plant in Baytown, Texas. It…

The Seventh Circuit denied a petition for review challenging EPA’s decisions to redesignate three geographic areas—Milwaukee-Racine, Greater Chicago, and the Illinois portion of the St. Louis area…

The Ninth Circuit upheld a lower court decision dismissing an environmental group's citizen suit requesting EPA to issue more stringent regulations for ozone pollution under the PSD program.…

The Ninth Circuit held that DOT did not violate the CAA or NEPA in its approval of a planned expressway connecting the Ports of Los Angeles and Long Beach, California. In the course of the project…

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…

The D.C. Circuit dismissed automobile industry groups' petition challenging an EPA rule intended to mitigate the misfueling of vehicles and engines with gasoline containing greater than 10%…

A district court dismissed Nebraska's lawsuit challenging EPA's proposed standards to limit carbon dioxide emissions from new or modified fossil fuel-fired electric utility generating…

The D.C. Circuit upheld EPA's denial of a petition to reconsider an Agency rule allocating production allowances for hydrochlorofluorocarbons (HCFCs), ozone-depleting refrigerants. The…

A district court held that it has subject matter jurisdiction over a CAA §321(a) lawsuit against EPA for its alleged failure to evaluate the potential for job losses due to its CAA regulation and…

A district court ordered an environmental group to pay $6.4 million in attorney fees in a citizen suit it filed against the owners of a Texas coal-fired power plant for alleged CAA violations.…