The D.C. Circuit remanded an EPA rule that retroactively altered allowances for controlling the production, import, and export of hydrochlorofluorocarbons that had been allowed under prior regulations. A 2003 rule allowed both inter-pollutant and intercompany transfers of allowances, but in the 2010...

A district court held that an environmental group's claims against an electric company for violating PSD requirements before making major modifications to one of its plants are time barred, but it stayed final entry of the judgment pending the ruling of the Seventh Circuit in a similar case. PSD obl...

The court holds that a U.S. Environmental Protection Agency (EPA) regulation that creates a 12-month grace period exempting transportation projects in nonattainment and maintenance areas from Clean Air Act (CAA) §176(c) is contrary to the plain meaning of the CAA. The court first holds that an envi...

The court affirms the U.S. Environmental Protection Agency's (EPA's) decision to redesignate the Cleveland-Akron-Lorain, Ohio, area as a Clean Air Act (CAA) attainment area for ozone. The court first holds that an organization of manufacturers and local governments from the Pittsburgh-Beaver Valley,...

The court holds that the U.S. Environmental Protection Agency's (EPA's) adoption of a rule requiring compliance assurance monitoring (CAM) of major emission sources complies with the Clean Air Act (CAA) §114(a)(3)'s enhanced monitoring requirements. The court first holds that EPA's adoption of CAM ...

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...

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 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...

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...