The court holds that a state environmental agency's enforcement actions against a petroleum company preclude a citizen suit against the company for Clean Air Act (CAA) violations. The court first holds that CAA §304 does not permit the litigation to proceed. CAA §304 precludes citizen suits where ...

The court denies petitions to review a U.S. Environmental Protection Agency (EPA) rule that conditionally allows foreign gasoline refiners to establish and use individual baselines reflecting their 1990 gasoline fuel property levels, instead of statutory baselines, under the antidumping provision of...

The court holds that the Secretary of the Interior violated the Endangered Species Act (ESA) by failing to designate critical habitat for the silvery minnow. The Secretary claimed that he could not complete the minnow's critical habitat designation due to fiscal limitations imposed by Congress. The ...

The court denies a state's motion to stay a decision that the National Marine Fisheries Service (NMFS) improperly decided that the evolutionary significant unit of coho salmon did not warrant listing as a threatened species under the Endangered Species Act (ESA). The court first holds that the state...

The court denied a petition to review the U.S. Environmental Protection Agency's (EPA's) approval of a revision to Missouri's state implementation plan (SIP) that replaced four area-specific fugitive dust regulations with one, consistent statewide rule. The court first holds that the state environme...

The court holds that an electric utility lacks standing to petition for review a U.S. Environmental Protection Agency (EPA) final rule approving a revision to the new source review program of Pennsylvania's Clean Air Act (CAA) state implementation plan (SIP). The state's new source review program is...

The court holds that the National Marine Fisheries Service's (NMFS') decision not to list the Oregon Coast evolutionary significant unit (ESU) of coho salmon as threatened under the Endangered Species Act (ESA) was arbitrary and capricious and was based on an erroneous legal standard. The court firs...

The court holds unlawful a U.S. Department of Commerce fishing quota that allocates the summer catch of scup on a state-by-state basis for Massachusetts, New York, and Rhode Island. Massachusetts argued that the quota was based on incomplete historical data that reflected only scup landings from lar...

The court holds unlawful U.S. Environmental Protection Agency (EPA) regulations that allow both local approval and federal funding of transportation projects that fail to satisfy the Clean Air Act's (CAA's) state implementation plan (SIP) conformity requirements. The court first holds that the EPA r...

The court affirms a district court's grant of summary judgment in favor of the U.S. Department of Commerce (DOC), finding that its denial of Connecticut's petition for rulemaking under the Magnuson-Stevens Act was not arbitrary or capricious and was consistent with all relevant law. Connecticut soug...