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 an NRC order transferring regulatory authority over decommissioning activities at a former aluminum production plant to the state of New Jersey under the Atomic Energy Act. New Jersey’s regulatory regime is adequate and compatible with the NRC’s regulatory program. And de...

A Colorado court held that a voter-approved local ban on hydraulic fracturing cannot apply retroactively to ban oil and gas operations that a city approved in a prior agreement. The city entered into a memorandum of understanding in August 2013 allowing a company to engage oil and gas exploration an...

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...

The Ninth Circuit invalidated a California law that prescribes cleanup standards for radioactive contamination at the Santa Susana Field Laboratory, a former federal nuclear testing facility near Los Angeles. The law, Senate Bill 990, requires that the site be made suitable for subsistence farming, ...

The Third Circuit struck down New Jersey's Long Term Capacity Pilot Program Act, which was enacted in 2011 to encourage the construction of new power plants within the state. The program, known as "LCAPP", would add a cumulative 2,000 megawatts of capacity to the regional power grid from which New J...