The court refuses to preliminarily enjoin a lessee from using a soil vapor extraction (SVE) cleanup method during the remediation of its leased property or to require the lessee to remediate all contamination at the site. The lessee subleased the property at issue to a dry cleaner who released hazar...

The court holds that the U.S. Environmental Protection Agency (EPA) erroneously classified two stationary gas turbines in an electrical power complex as subject to regulation under the new source performance standards (NSPS) for petroleum refineries. The regulations apply to affected facilities in p...

The court affirms in part and reverses in part the U.S. Environmental Protection Agency's (EPA's) hazardous air pollutant (HAP) emission regulations for Portland cement manufacturing. The regulations were challenged by an environmental group and an industry association. The court first dismisses the...

The court amends an opinion that affirmed in part and remanded in part a U.S. Environmental Protection Agency's (EPA's) hazardous air pollutant (HAP) emission regulations for cement manufacturing. The amended opinion removes the argument that the Clean Air Act (CAA) §112(d)(2)(A) requirement that E...

The court reverses and remands the convictions of two individuals charged with improperly removing asbestos-containing materials from a hotel and casino in Las Vegas, Nevada. The court first holds that the district court committed plain error when it constructively amended the indictment by instruct...

The court holds that it lacked original jurisdiction under the Nuclear Waste Policy Act (NWPA) to review an environmental group's petition to set aside a U.S. Department of Energy (DOE) order that provides a process for determining whether certain radioactive waste streams are waste incidental to re...

The court holds that the U.S. Environmental Protection Agency (EPA) has the power under the Clean Air Act (CAA) to adopt de minimis exemptions for sources of pollution from particulate matter having an aerodynamic diameter of 10 microns or less (PM[10]) from the new source review (NSR) program in a ...

The court holds that the National Marine Fisheries Service (NMFS) acted arbitrarily and capriciously in concluding that proposed timber sales were not likely to jeopardize the continued existence of the Umpqua River cutthroat trout and the Oregon Coast coho salmon. The court first holds that the tri...

The court remands two aspects of a final U.S. Environmental Protection Agency (EPA) rule that requires many nitrogen oxide-emitting facilities in several midwestern and southeastern states to conform to emission limits set by EPA and to participate in an emissions trading program. Petitioners challe...

The court remands three portions of technical amendments the U.S. Environmental Protection Agency (EPA) made to its nitrogen oxide (NOx) state implementation plan (SIP) call rulemaking that revised the database used to establish state budgets for NOx emissions. The court first holds that the growth ...