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...

A district court granted summary judgment for the Tennessee Valley Authority (TVA) in a challenge to its long-term contracts with local power companies. Conservation groups argued that the 20-year contracts, which contained automatic renewal provisions and flexibility provisions allowing the compani...

A district court granted summary judgment for BLM, fishing groups, and a tribe in a challenge to the Oregon Water Resources Department's (OWRD's) order prohibiting the Bureau from releasing water from Upper Klamath Lake. The plaintiffs argued BLM was required to comply with the ESA in operating the ...

A magistrate judge recommended that environmental groups' motion for summary judgment be denied in a challenge to FWS' authorization of oil and gas drilling on the northern coast of Alaska. The groups argued that FWS' five-year incidental take regulation, accompanying biological opinion, and EA unla...

A district court granted in part and denied in part a mining company's motion to dismiss a lawsuit concerning a proposed open-pit copper-nickel mine in northeastern Minnesota. Environmental groups argued FWS and the Army Corps of Engineers violated the ESA by failing to reinitiate consultation in re...

The Fifth Circuit granted small refiners' motion to stay certain compliance obligations under the CAA pending appeal of EPA's decision denying their requested hardship exemptions from the Act's Renewable Fuel Standard obligations. The refiners argued EPA's late 2021 interpretation of CAA provisions ...

The Fifth Circuit ordered FERC to provide a meaningful explanation for the length of time it takes for final action in Federal Power Act §206 complaint proceedings, in a lawsuit concerning complaints that have gone four to six years without resolution. The Louisiana Public Service Commission petiti...