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% ethanol (E10). Among other measures, the rule prohibits the use of E10 gasoline in certain vehicles, engines, ...

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 regional haze rule for Class I areas, states have the option of u...

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 petitioners argued that reconsideration should be granted because the rule has an adverse environmental impact and ...

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 units. As part of the proposed rule, EPA found that certain technology was "adequately demonstrated" for purposes of...

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 enforcement efforts. EPA filed a motion to dismiss, arguing that the statute is discretionary and that ...

The Seventh Circuit dismissed an environmental group's lawsuit challenging EPA's decision not to object to Wisconsin's renewal of a Title V permit for a pre-1975 paper mill. Under the CAA's PSD program, emissions from pre-1975 sources count as part of the emissions baseline and not toward the overal...