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...

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 summary judgment for a conservation group in a challenge to the Natural Resource Conservation Service's (NRCS') 2020 rule regarding certification of maps delineating wetlands. The group argued NRCS changed its policy regarding pre-1996 wetland certifications without exercisi...

A district court denied a mining company's motion for partial summary judgment in a lawsuit concerning pollution from the company's British Columbia smelter along the Upper Columbia River. Tribal members sought natural resource damages for contamination of the river. The company argued the members' ...

A district court granted in part environmental groups' motion for summary judgment in a challenge to various agency actions relating to EPA's approval of the state of Florida's application to assume permitting authority under §404 of the CWA. The groups argued EPA and FWS violated the ESA because n...

The Tenth Circuit, 2-1, affirmed in part and reversed in part summary judgment for an oil and gas company in a lawsuit brought by a cattle ranch in Oklahoma. The ranch brought several tort claims, arguing the company's pipeline leaked and contaminated its property. A district court concluded the con...

A district court granted DOE's motion to dismiss a lawsuit over the social and economic impacts of storing spent nuclear fuel at Idaho National Laboratory (INL). Butte County argued DOE should have determined the social and economic impacts of storing the materials at INL because they were there pur...

The Fourth Circuit reversed a district court order abstaining from ruling on constitutional claims brought by mineral interest owners challenging amendments to West Virginia's oil and gas conservation law. Plaintiffs argued the amendments, which for the first time authorized "unitization of interest...

A district court granted the state of Louisiana's request to block EPA and DOJ from imposing disparate impact mandates under Title VI of the Civil Rights Act. The state argued the agencies were attempting to create disparate impact mandates under Title VI by regulation without having authority to do...

A district court dismissed a RCRA citizen suit over a closure plan for a coal-fired power plant in Alabama. An environmental group challenged the plan, arguing it was unlawful to permanently store over 21 million tons of coal ash and toxic pollutants in the existing unlined impoundment, situated in ...