The Fifth Circuit denied a petition to review a CWA permit issued by the Army Corps of Engineers authorizing development of a natural gas pipeline and export facility in south Texas. A group of shrimpers and fishermen argued the permit violated the CWA by failing to show that the approved project wa...

The D.C. Circuit vacated a license issued by FERC for operation of a hydroelectric dam on the Susquehanna River in Maryland. The state of Maryland issued a CWA §401(a)(1) certification to the dam's operator in 2018 with conditions. The operator challenged the certification, and the parties reached ...

A district court granted in part and denied in part an animal sanctuary's motion to dismiss an ESA citizen suit brought by an animal rights group. The group alleged the sanctuary violated the ESA by taking endangered or threatened species, unlawfully possessing ESA-protected animals, and unlawfully ...

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...

A district court denied a state prison's motion for partial summary judgment in a CWA citizen suit brought by a California county. The prison argued the county did not have statutory standing to sue under the CWA because the Act's definition of "citizen" did not include counties. The court concluded...

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...

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...