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New York v. Pruitt

A district court ordered EPA to issue federal implementation plans fully resolving interstate transport obligations under the CAA's "good neighbor" provision for the 2008 ozone NAAQS. EPA conceded that it missed the deadline to do so under the Act. The Agency also acknowledged that it was feasible t...

Wyoming v. United States Bureau of Land Management

The Tenth Circuit refused to stay pending interlocutory appeal a lower court order staying BLM's waste prevention rule, which was issued to reduce the venting, flaring, and leaking of natural gas emissions during oil and gas production activities on onshore federal land. California, New Mexico, and ...

Community-in-Power & Development Ass'n v. Pruitt

A district court ordered EPA to promulgate revised CAA emission standards for nine industrial sectors by October 1, 2021. Environmental groups wanted the overdue rulemakings to be completed within two years, while the Agency requested seven years. The court determined that three and a half years was...

Utility Air Regulatory Group v. Environmental Protection Agency

The D.C. Circuit upheld EPA's 2012 regional haze rule, which seeks to restore air quality and visibility in certain national parks and wilderness areas to what they would be under natural conditions. The rule requires states to impose best available retrofit technology (BART) on certain stationary p...

Sierra Club v. Environmental Protection Agency

The D.C. Circuit granted in part and denied in part petitions concerning EPA's NESHAPs for industrial boilers. The first challenge raised by environmental groups concerned regulations that indirectly control a group of organic pollutants by limiting carbon monoxide emissions as a proxy for the targe...

South Coast Air Quality Management District v. EPA

The D.C. Circuit held that EPA unlawfully revoked the 1997 ozone NAAQS when it implemented the 2008 standard. In 2008, EPA set the ozone NAAQS at 75 parts per billion (ppb). In 2015, when implementing the standard, the Agency eliminated the 1997 standard of 84 ppb on the grounds that it was impossib...

Connecticut v. Pruitt

A district court held that EPA failed to act when it did not rule within 60 days on Connecticut's petition concerning upwind pollution. In June 2016, Connecticut filed a petition pursuant to §126(b) of the CAA for EPA to make a finding that Brunner Island is emitting air pollutants that significant...

Sowinski v. Cal. Air Res. Bd.

The Federal Circuit held that the state of California did not infringe on an emissions trading-related patent, allowing the state's greenhouse gas emissions cap-and-trade program to continue. The plaintiff owns a U.S. patent that covers a method and apparatus for using electronic systems to claim an...