The court holds that a state land use board erred when it failed to affirm a county's preliminary approval of a residential subdivision in an area containing wetlands and designated as a wildlife habitat. The board rejected the county's argument that the wetlands at issue were not subject to the cou...

The court holds that the Federal Insecticide, Fungicide, and Rodenticide Act (FIFRA) preempts an employee's state-law claims against her employer regarding the labeling of pesticides, but FIFRA does not preempt state-law claims regarding the packaging of the pesticides. The employee alleged that she...

The court holds that developers' sidecasting of dredged spoil in a jurisdictional wetland constitutes the discharge of a pollutant under the Clean Water Act (CWA). The court first holds that the deposit of dredged or excavated material from a wetland back into the same wetland constitutes the discha...

The court holds that a railroad's motion to dismiss a power company's Comprehensive Environmental Response, Compensation, and Liability Act (CERCLA) cost recovery action against it for lack of subject matter jurisdiction must be denied. The court first holds that the power company's allegation as co...

The court upholds a district court dismissal for lack of subject matter jurisdiction of recreational groups' claims that the U.S. Forest Service violated the U.S. Constitution and the Administrative Procedure Act (APA) when it designated certain areas of the Shawnee National Forest as Research Natur...

The court holds unconstitutional the requirement in §609(a) of the Departments of Commerce, Justice, and State, the Judiciary, and Related Appropriations Act of 1990 that the executive branch initiate discussions with foreign nations to develop treaties to protect sea turtles, and holds that the Co...

The court affirmed a lower court's grant of summary judgment in favor of a power company charged with modifying its power plants without first obtaining permits in violation of the Clean Air Act's (CAA's) prevention of significant deterioration (PSD) provisions. The company updated its coal-fired ge...

The court vacates the U.S. Environmental Protection Agency's equipment replacement provision (ERP) rule, which expanded the routine maintenance, repair, and replacement exclusion from new source review (NSR) requirements by allowing sources to avoid NSR when replacing equipment that does not exceed ...

The court affirms in part and reverses in part a district court decision upholding National Marine Fisheries Service (NMFS) regulations providing a Native American tribe an allocation of the Pacific whiting fishery. In the 1850s, Washington State entered into several treaties known as the Stevens Tr...

The court holds that the New York Air Pollution Mitigation Law is preempted by the Clean Air Act (CAA) and violates the U.S. Commerce Clause. Under Air Pollution Mitigation Law §66-k, an electric generator is assessed an offset penalty when it sells a sulfur dioxide (SO2) allowance to a generator i...