The D.C. Circuit granted environmental groups' motion for writ of mandamus to require EPA to complete its effects determination for the registered pesticide cyantraniliproles. The groups argued EPA was eight years past its deadline under the ESA to complete the effects determination, that it had fai...

A district court granted in part and denied in part conservation groups' motion for an order on remedy after it invalidated NMFS' 2021 biological opinion (BiOp) and final rule as related to the U.S. lobster fishery. The parties agreed the rule should be remanded without vacatur to NMFS along with an...

A district court granted DOD's motion to dismiss a challenge to its decision to halt fence construction along the U.S.-Mexico border in response to President Biden's proclamation declaring an end to the national border emergency. A corporation that owns land adjacent to the fence argued that DOD's d...

In an amended order, a district court granted FWS' and NMFS' motion to voluntarily remand a series of regulations enacted by the Trump Administration that modified how the Services implement the ESA. Environmental groups, states, and cities had argued the regulations violated the ESA, the APA, and N...

The D.C. Circuit dismissed a petition to review NRC's decision to issue an amended materials license authorizing uranium production for a DOE demonstration program at a facility in Ohio. Nonprofit groups argued NRC violated NEPA by failing to prepare an EIS and by failing to address the environmenta...

The Ninth Circuit, 2-1, reversed summary judgment for the Bureau of Reclamation and Santa Maria Water District in a lawsuit concerning the endangered Southern California steelhead. Environmental groups argued the agencies' operation of a dam in the Santa Maria River watershed interfered with the ste...

The Third Circuit affirmed dismissal of a challenge to the Delaware River Basin Commission's ban on high-volume hydraulic fracturing in the Delaware River Basin. Pennsylvania state senators, a state caucus, and several municipalities argued the Commission exceeded its authority under the Delaware Ri...

A district court denied summary judgment for a Maine lobstermen group in a challenge to NMFS' 2021 biological opinion (BiOp) that both authorized a series of federal fisheries, including the lobster fishery, and implemented a conservation framework designed to reduce the fisheries' impact on right w...

A district court vacated two rights-of-way that BLM issued to a company in 2020 to transport water through an existing gas pipeline across federal lands. Environmental groups sought vacatur, arguing the rights-of-way violated FLPMA, NEPA, and the National Historic Preservation Act (NHPA). BLM agreed...

A district court remanded a lawsuit challenging FWS’ decision to downgrade a rare species of parrot from endangered to threatened and to issue a §4(d) rule under the ESA allowing for limited import and export of the bird without an ESA permit. An animal advocacy group sought vacatur, arguing FWS�...