A district court denied the Pipeline and Hazardous Materials Safety Administration's (PHMSA's) motion to dismiss a challenge to the agency's pipeline inspection regulations. An environmental group argued that PHMSA's existing regulations did not encompass all oil and gas pipelines that crossed feder...

In an unpublished opinion, the Ninth Circuit affirmed a summary judgment for the U.S. Forest Service in a challenge to its proposed logging project in Flathead National Forest. Environmental groups argued that the Service violated the National Forest Management Act (NFMA) and NEPA by failing to ensu...

The Tenth Circuit affirmed in part and reversed in part a district court ruling that upheld BLM's approval of oil and gas wells in the Mancos Shale area of the San Juan Basin in northeastern New Mexico. Environmental groups argued that the agency violated the National Historic Preservation Act by fa...

The Ninth Circuit affirmed in part and vacated in part a district court's judgment upholding BLM's and the Interior Board of Land Appeals' decisions concerning recreation and travel management plans for motorized vehicle use in the Steens Mountain Cooperative Management and Protection Area in southe...