A district court granted in part and denied in part the United States' motion to dismiss citizen groups’ claims challenging the approval of certain quarterly oil and gas lease sales under, among other things, the APA, FLPMA, the Mineral Lands Leasing Act (MLLA), the National Forest Management ...

The D.C. Circuit denied industry groups’ petition for review of a Mine Safety and Health Administration (MSHA) decision to enforce a final exposure limit standard for exposure of miners in metal and non-metal underground mines to diesel particulate matter (DPM) in diesel exhaust. This decision...

A district court entered judgment for the Tennessee Valley Authority (TVA) with respect to environmental groups’ claims that the TVA violated the CAA and the Tennessee SIP in its operation of a fossil fuel-fired electricity generating facility. The groups argued that two projects, the economiz...

The Ninth Circuit affirmed in part and vacated in part a lower court decision related to the United States’ effort to recoup under the Fallon Paiute Shoshone Indian Tribes Water Rights Settlement Act of 1990 (Settlement Act) excess diversions of water that an irrigation district permitted over man...

The D.C. Circuit denied a petition to review FERC's approval of a construction project that would allow a natural gas importer to import greater quantities of liquefied natural gas and distribute it in gaseous form. The petitioner, a utility, argued that higher volumes of regasified liquefied natura...

The Ninth Circuit held that the U.S. Environmental Protection Agency (EPA) did not act arbitrarily, capriciously, or contrary to law when it granted Nevada's request to split one of its clean air areas into two. Contrary to an environmental group's claim, the presence and operation of a mine in the ...

A district court held that the Bureau of Indian Affairs' (BIA's) supplemental environmental assessment (EA) and revised finding of no significant impact (FONSI) for a proposed casino on Native American land held in trust by the United States complied with the National Environmental Policy Act (NEPA)...

The Fifth Circuit vacated the Federal Energy Regulatory Commission's (FERC's) decision that two natural gas pipelines perform a "transportation" function rather than a "gathering" function, thereby subjecting them to FERC jurisdiction's under the Natural Gas Act. Natural gas flows from gathering pip...

A district court held that the Bureau of Land Management (BLM) improperly segmented its analysis of a petroleum pipeline construction project in violation of the National Environmental Policy Act. The BLM erroneously determined that the pipeline segment had independent utility from another proposed ...

The court vacated a lower court order denying environmental groups' motion for attorneys fees in an underlying case challenging a surface mining operation permit. In that case, the groups sought, and eventually obtained, a writ of mandamus setting aside the permit. Pursuant to California Code of Civ...