The Court of Federal Claims held that the U.S. government need not reimburse oil companies for costs they incurred cleaning up contamination stemming from the production of aviation fuel during World War II. During the 1940s, at the urging of the U.S. government, the companies entered into contracts...

The Federal Circuit reversed and remanded a lower court decision dismissing an insurance company's reimbursement action under the National Defense Authorization Act for cleanup costs associated with the development of property formerly used as a military base. The lower court determined that the com...

The D.C. Circuit dismissed a road building association's lawsuit challenging EPA regulations for nonroad engines and vehicles. The regulations pertain to CAA §209(e), which preempts certain state regulation of nonroad engines. The association petitioned EPA to amend those regulations to broaden the...

The Fifth Circuit affirmed in part and reversed in part a lower court decision dismissing an environmental group's CWA, CERCLA, and EPCRA claims against BP and Transocean Ltd. following the Deepwater Horizon disaster. BP leased the mobile offshore drilling unit known as Deepwater Horizon from Transo...

The D.C. Circuit ordered EPA to repromulgate two final rules it issued under the CAA concerning the implementation of the NAAQS for fine particulate matter (PM). Environmental groups challenged EPA's decision to issue the rules pursuant to the general implementation provisions of Subpart 1 of Part D...