A district court granted in part and denied in part an environmental group's motion for summary judgment in a CWA citizen suit concerning the Forest Service's discharge of aerially deployed fire retardant into navigable waters of the United States without an NPDES permit. The group argued the Servic...

The D.C. Circuit granted in part environmental groups' petitions to review FERC orders allowing the Mountain Valley Pipeline project to proceed. The groups argued FERC erred by allowing construction to resume before the pipeline owner reacquired all its other permits, that constructing segments of t...

The U.S. Supreme Court held that the CWA extends to only those "wetlands with a continuous surface connection to bodies that are 'waters of the United States' in their own right," such that they are indistinguishable from those waters, in a challenge to an EPA compliance order stating that landowner...

The Ninth Circuit vacated two district court rulings in challenges to the Forest Service's approval of a logging project in the Idaho Panhandle National Forest. An environmental group sued the Forest Service in two separate suits, arguing it violated the Healthy Forest Restoration Act (HFRA) and NEP...

The D.C. Circuit dismissed in part and denied in part environmental groups' petition to review FERC's approval of a liquefied natural gas project in Alaska. The groups argued the approval violated NEPA and the Natural Gas Act. The court found that FERC considered and reasonably rejected no-action al...

The D.C. Circuit granted oil and gas groups' petition to review a Pipeline and Hazardous Materials Safety Administration (PHMSA) safety standard that requires their members to install remote-controlled or automatic shut-off valves in some types of new or replaced gas and hazardous liquid pipelines. ...

In an unpublished opinion, the Ninth Circuit reversed summary judgment for the Forest Service in a challenge to its authorization of cattle grazing on allotments in Tonto National Forest. A group representing property owners in the area challenged the authorization on NEPA and National Forest Manage...

The Sixth Circuit granted 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. A district court had denied the motions, concluding plaintiffs lacked...

The D.C. Circuit vacated EPA's withdrawal of its determination to regulate perchlorate in drinking water. An environmental group argued EPA lacked the authority to withdraw the determination under the SDWA, and that even if it did have such authority, it acted arbitrarily and capriciously in doing s...

The U.S. Supreme Court, in a splintered 5-4 decision, affirmed dismissal of a constitutional challenge to a California law that forbids in-state sale of pork meat from breeding pigs that are "confined in a cruel manner." Out-of-state pork producers challenged the law on dormant Commerce Clause groun...