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...

A district court granted summary judgment in favor of the U.S. Bureau of Reclamation on all but one claim in a lawsuit filed against the agency challenging its decision in 2013 to make certain "flow augmentation releases" (FARs) of water from a dam located in the Trinity River Division of the Centra...

A district court granted in part and denied in part motions for summary judgment in a case involving logging projects in the Flathead National Forest. In the case, environmental groups challenged the Forest Service's and FWS' authorization of the Glacier Loon Fuels Reduction and Forest Health Projec...

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 upheld FWS' withdrawal of a proposed rule that would have listed the dunes sagebrush lizard as an endangered species. Environmental groups challenged the decision, arguing that it failed to account for all of the statutory listing factors provided in the ESA, did not rely on the bes...

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 ...