A district court granted Texas' and Idaho's motion to preliminarily enjoin EPA's and the Army Corps of Engineers' 2023 rule revising the definition of "waters of the United States" under the CWA. The states sought to enjoin the rule within their borders, arguing it was unconstitutional and violated ...

A district court denied for lack of jurisdiction the Commonwealth of Kentucky's and business groups' motions to preliminarily enjoin EPA's and the Army Corps of Engineers' 2023 rule revising the definition of "waters of the United States" under the CWA. The court found that plaintiffs failed to show...

The Fourth Circuit vacated the West Virginia Department of Environmental Protection's CWA §401 certification for a proposed pipeline that would transport natural gas from West Virginia to southern Virginia. Landowners and environmental groups petitioned for review of the certification, arguing the ...

The Fourth Circuit denied a petition to review the Virginia Department of Environmental Quality's (DEQ's) and the State Water Control Board's approval of a state water permit for a proposed pipeline that would transport natural gas from West Virginia to southern Virginia. Environmental groups argued...

A district court granted in part an environmental group's motion for summary judgment in a challenge to NMFS' 2021 permit authorizing the incidental taking of ESA-listed humpback whales in a sablefish fishery off the Pacific coast. The group argued NMFS violated the Marine Mammal Protection Act (MMP...

The Ninth Circuit reversed a district court's order granting voluntary remand and vacating EPA's 2020 CWA Section 401 Certification Rule. States, environmental groups, and tribes challenged the rule, arguing it unlawfully restricted states' and tribes' ability to reject water pollution projects. Bef...

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 adopted a magistrate judge's recommendation to deny summary judgment for an environmental group in a lawsuit concerning the Army Corps of Engineers' issuance of a CWA §404 permit for a roadway expansion project in Florida. The group argued the Corps violated the CWA by failing to r...

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...