A district court affirmed FWS' decision to modify the location of certain planned multi-use trails in Rocky Flats National Wildlife Refuge. Nonprofit groups argued FWS violated NEPA by failing to prepare a supplemental EIS for the trail modifications and improperly relying on categorical exclusions ...

In an unpublished opinion, the Ninth Circuit granted in part and dismissed in part a challenge to two FAA actions concerning a revised flight path at Los Angeles International Airport. The cities of Los Angeles and Culver City argued the FAA violated NEPA, the National Historic Preservation Act (NHP...

The D.C. Circuit vacated in part EPA's 2019 rule lifting seasonal restrictions on the sale of higher-ethanol fuel. Petroleum industry groups challenged a specific section of the rule, in which EPA announced a new interpretation of when limits on fuel volatility under §7545(h)(4) of the CAA could be...