The D.C. Circuit dismissed for lack of standing a petition to review a 2016 EPA rule concerning greenhouse gas emissions and fuel efficiency standards for medium- and heavy-duty engines and vehicles. A coalition representing businesses that make and sell aftermarket car products challenged the rule'...

The D.C. Circuit dismissed an oil company's petition to review EPA's response concerning the decommissioning status of two oil platforms off the California coast. The company initially asked EPA for guidance on whether, as the process moves forward, the platforms would cease to qualify as regulated ...

A district court on remand granted environmental groups' request for a permanent injunction in an ESA citizen suit concerning a logging project on private land in Oregon. In initial proceedings, the groups sought a preliminary injunction, arguing the project would result in the taking of marbled mur...

The Tenth Circuit affirmed dismissal of a challenge to FWS' 2018 decision to modify certain trails in the Rocky Flats National Wildlife Refuge. Community groups argued the modifications were significant and that FWS failed to prepare a supplemental EIS and relied on categorical exclusions based on a...

A district court granted summary judgment for conservation groups in a challenge to NMFS' 2021 issuance of a biological opinion (BiOp) and final rule concerning lobster fishing gear requirements and the endangered North Atlantic right whale. The groups argued the BiOp violated the ESA by allowing fo...

The First Circuit vacated a district court order preliminarily enjoining NOAA's partial seasonal closure of a Maine lobster fishery to protect endangered North Atlantic right whales. A fishing union argued the closure was an arbitrary and capricious application of the Marine Mammal Protection Act, a...

A district court dismissed a challenge to FWS rules delaying the effective date of a January 2021 rule that designated portions of Washington, Oregon, and California as critical habitat for the northern spotted owl. A trade group and counties throughout the Pacific Northwest sought to vacate the "de...

A district court vacated a series of regulations enacted in 2019 that modified how FWS and NMFS implement the ESA. Environmental groups, states, and cities argued the regulations violated the ESA, the APA, and NEPA. FWS and NMFS moved to remand without vacatur, arguing vacatur would cause confusion ...

The U.S. Supreme Court held, 6-3, that President Barack Obama's EPA had exceeded its statutory authority under §111(d) of the CAA when it promulgated the Clean Power Plan to address carbon dioxide pollution from existing power plants. States and coal companies had petitioned for review of the plan,...

A district court granted an environmental group's motion to preliminarily enjoin the Forest Service and FWS from moving forward with a logging and road building project in the Kootenai National Forest. The group argued the agencies violated the ESA by failing to conduct a lawful cumulative effects a...