In an unpublished order, the Fifth Circuit, 2-1, stayed EPA's disapproval of SIPs submitted by Texas and Louisiana following the Agency's 2015 revision to the ozone NAAQS. The states moved for a stay pending review of EPA's disapproval. The court found a stay was appropriate because the states made ...

The Ninth Circuit reversed a district court's dismissal of an industry group's challenge to the city of Berkeley's natural gas hookup ban. The group argued the federal Energy Policy and Conservation Act (EPCA) preempted the ban, which enacted a building code prohibiting installation of natural gas p...

A district court granted in part and denied in part summary judgment for environmental groups in a lawsuit concerning FWS' management of grizzly bear recovery in the Bitterroot Ecosystem. The groups argued FWS violated NEPA and the APA by choosing not to implement grizzly bear recovery plans adopted...

A district court granted in part an environmental group's motion for summary judgment in a challenge to NMFS' 2021 permit authorizing the incidental taking of ESA-listed humpback whales in a sablefish fishery off the Pacific coast. The group argued NMFS violated the Marine Mammal Protection Act (MMP...

A district court granted in part and denied in part FWS' motion to dismiss a challenge to the Service's failure to comply with deadlines for listing species as threatened or endangered and for designating critical habitats for them. An environmental group sought to compel FWS to make 12-month findin...

A district court denied the Army Corps of Engineers' motion to dismiss an ESA citizen suit alleging the Corps' operation of a dam in California was unlawfully taking protected salmon species. An individual argued the Corps violated the ESA by jeopardizing salmon populations with the dam's flood cont...

The D.C Circuit denied an industry group's challenge to EPA's 2021 rule requiring power plants in several upwind states to reduce nitrogen oxide emissions. The group argued the rule was arbitrary and capricious, and that EPA failed to conduct a legally and technically appropriate assessment as requi...

The Fifth Circuit reversed summary judgment for NOAA and NMFS in a challenge to the agencies' rule requiring charter boat owners to install NMFS-approved vessel monitoring systems (VMSs) to track the vessels' GPS locations. Charter boat captains argued the rule's tracking requirement exceeded the au...

The Sixth Circuit granted a petition to review EPA's removal of an air nuisance rule from Ohio's SIP. Environmental groups and individuals argued that EPA violated the CAA and APA in removing the rule. EPA moved to remand without vacatur to review its removal of the rule. The court found that vacatu...

The D.C. Circuit, 2-1, denied electric utility companies' challenge to FERC's order granting a solar company's application for certification of its solar array and battery storage facility in Montana as a qualifying facility under the Public Utility Regulatory Policies Act (PURPA). The companies arg...