A district court granted states' motion for summary judgment in a lawsuit concerning EPA's duty to limit air pollution drifting from upwind states into northeastern states. Connecticut, Delaware, Massachusetts, New Jersey, and New York argued that EPA failed to fulfill a nondiscretionary duty under ...

The Fifth Circuit affirmed, 2-1, a lower court ruling in favor of fishermen's challenge to NMFS regulations regarding offshore aquaculture in federal waters of the Gulf of Mexico. The fishermen argued that the regulations were invalid because they fell outside the agency's authority to regulate fish...

The Fifth Circuit vacated and remanded a lower court decision that imposed penalties against an oil company for alleged CAA permit violations at its industrial complex in Baytown, Texas. Environmental groups filed a CAA citizen suit against the company, alleging violations that occurred thousands of...