The D.C. Circuit vacated the Mine Safety and Health Administration's (MSHA's) 2018 amendment to a 2017 safety standard that required mine operators to examine areas before miners began work and record any conditions that could adversely affect workers' safety and health. Union groups argued the amen...

The D.C. Circuit denied a petition to review FERC's decision authorizing the construction and operation of a new natural gas compression facility in Tennessee. Landowners and business owners argued that FERC violated NEPA by failing to adequately evaluate alternatives to the facility. The court disa...

The D.C. Circuit granted in part the U.S. Army Corps of Engineers' and a power company's request to reconsider a prior court order that vacated a permit for a 17-mile transmission line after finding the Corps failed to prepare an EIS for the line in violation of NEPA. The Corps and power company arg...

The D.C. Circuit dismissed in part and denied in part a petition to review EPA's 2016 revisions to its ambient air quality monitoring system regulations. An environmental group argued that the revisions violated the CAA by not requiring states to give advance notice and hold a public hearing when ma...

In an unpublished opinion, a state appellate court upheld the Minnesota Department of Natural Resources' decision denying a request for the preparation of a supplemental EIS for a proposed copper-nickel-platinum group elements mine. Environmental groups challenged the Department's determination that...