A district court granted summary judgment for 21 states in a challenge to the Federal Highway Administration's (FHwA's) rule requiring each state to set declining targets for tailpipe carbon dioxide (CO2) emissions from vehicles on the National Highway System. The states argued requiring automobile ...

A district court granted in part and denied in part summary judgment for an animal rights group in a lawsuit concerning BLM's adoption of four 10-year management plans for controlling wild horse populations in certain herd management areas. The group argued BLM exceeded its statutory authority under...

A district court granted summary judgment for the state of Texas in a challenge to the Federal Highway Administration's (FHwA's) 2023 rule requiring states to measure, report, and set declining targets for the amount of carbon dioxide emitted by vehicles using the interstate and national highway sys...

A district court granted in part and denied in part summary judgment for environmental groups in a challenge to an Idaho law authorizing expanded authorization of recreational wolf trapping and snaring in the state's grizzly bear habitat. The groups argued Idaho's continued authorization and expansi...

A district court denied the state of Alaska's and North Slope Borough's challenge to NMFS' decision not to delist the Arctic ringed seal as an endangered species following their 2019 petition. The plaintiffs argued NMFS failed to credit new information from FWS' analysis, failed to credit the Interg...

In an unpublished opinion, the Ninth Circuit affirmed in part and reversed in part summary judgment for FWS in a challenge to the Service's issuance of an incidental take regulation for polar bears living along Alaska's Beaufort Sea. Environmental groups argued FWS failed to satisfy the Marine Mamma...

A magistrate judge recommended summary judgment be granted in part and denied in part for environmental groups in a challenge to the Forest Service's 2018 revision to the forest management plan for Flathead National Forest. The groups argued the Forest Service and FWS failed to rationally consider t...

The Tenth Circuit affirmed dismissal of an environmental group's petition to review FWS' revised land management plan for the Rio Grande National Forest. The group argued FWS' biological opinion (BiOp), which concluded the plan would not likely jeopardize the Canada lynx's continued existence, faile...

The Third Circuit granted petitions to review FERC orders allowing the administrator of a 2024/2025 capacity auction to apply a new rule retroactively to a pending action to avoid a spike in electricity prices. Electric suppliers and their trade groups argued the orders violated the filed rate doctr...

A district court granted NMFS' motion to dismiss a challenge to its decision to issue several incidental take authorizations (ITAs) for wind farm development off the coasts of New Jersey and New York. A nonprofit group argued NMFS violated the Marine Mammal Protection Act because the ITAs had more t...