The Ninth Circuit reversed in part a lower court decision upholding a "Clean Truck Program" adopted by a California port designed in part to reduce emissions related to port operations, including emissions from trucks.

The Federal Circuit affirmed in part and reversed in part a lower court decision granting the buyer and seller of an energy company damages for the U.S.

A district court held that the owner of PCB-contaminated property is not entitled to injunctive relief under RCRA compelling the former owner to either pay for future cleanup costs at the property or take over remediation in its entirety.

A district court held that BLM's EISs associated with the Craters of the Moon and Pinedale resource management plans (RMPs) failed to adequately analyze impacts to the sage-grouse in violation of NEPA.

A district court dismissed environmental groups' action against EPA seeking the regulation of lead shot and bullets under TSCA. In August 2010, the group petitioned EPA to regulate lead shot, bullets, and fishing sinkers under the Act.

A California appellate court reversed and remanded a lower court decision denying water districts' motion to amend a 1961 judgment that imposed a "physical solution" on the West Coast groundwater basin.

An Illinois appellate court held that an insurer has a duty to defend a manufacturing company in an underlying lawsuit filed against it by nearby homeowners for personal injury and property damage stemming from emissions generated as part of the company's normal business operations.