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 ...

A district court held that the Animal and Plant Health Inspection Service (APHIS) failed to take a hard look at its decision to deregulate alfalfa genetically engineered to resist the herbicide glyphosate—the active ingredient in "RoundUp." Substantial questions exist as to whether the deregulatio...

The D.C. Circuit denied petitions to review two Federal Energy Regulatory Commission (FERC) regulations concerning the project design and capacity expansion of Alaska natural gas transportation projects. The petitioner wants to construct a natural gas pipeline from the North Slope of Alaska to the c...

The D.C. Circuit granted in part environmental groups' petition for review of a final rule promulgated by the U.S. Environmental Protection Agency (EPA) to regulate "hot spot" analyses undertaken as part of the State Implementation Plan for National Ambient Air Quality Standards transportation proje...

A district court dismissed an environmental group's claim that the Federal Highway Administration (FHwA) violated the National Environmental Policy Act and the Transportation Act in approving an environmental impact statement (EIS) for a new transportation project designed to improve commuting betwe...

The court holds that the Federal Highway Administration and the West Virginia Department of Transportation's decision to support the building of a new, four-lane highway as part of the Appalachian Highway Development System complied with the National Environmental Policy Act and §4(f) of the Depart...

The court upholds the U.S. Forest Service's interpretation of the term "native" and its environmental assessment (EA) for an ecological project in Shawnee National Forest in Illinois. The appellants argued that the ecological project will have an adverse effect on shortleaf pines and pine warblers i...

The court holds that the U.S. Forest Service failed to comply with National Forest Management Act (NFMA) and National Environmental Policy Act (NEPA) requirements in determining whether to allow a timber sale in the Payette National Forest in Idaho. The court first holds that the Forest Service fail...

The court dismisses a property owner's Comprehensive Environmental Response, Compensation, and Liability Act (CERCLA), Resource Conservation and Recovery Act (RCRA), Federal Water Pollution Control Act (FWPCA), and state common-law claims against prior owners of the property and a state agency for r...