A district court ordered EPA to either promulgate revised emissions standards for the the pulp mill and nutritional yeast manufacturing source categories, or issue a determination that such standards are not required under the CAA.

The U.S. Supreme Court reversed a lower court decision barring a hunter from using a hovercraft over a stretch of the Nation River that flows through the Yukon-Charley Rivers National Preserve, a conservation system unit in Alaska that is managed by NPS.

A district court held on motions for summary judgment that a hazardous waste management company should be held liable under CERCLA for PCE contamination, but that material issues of disputed fact preclude a finding that an employee should be liable as an "operator." The testimony of the

A district court granted an oil company's motion to dismiss claims filed against it for economic losses stemming from the government's moratorium on offshore drilling in the aftermath of the Deepwater Horizon disaster.

A district court held that conservation groups lacked standing to challenge the U.S. Army Corps of Engineers’ decision to reissue a nationwide permit (NWP 13) authorizing the discharge of dredged and fill material to construct bank stabilization projects.

A Montana court vacated and remanded a water discharge permit that the state's environmental agency issued to a coal mine in southeastern Montana.

A district court dismissed conservation groups' lawsuit challenging FWS' and DOI's decision to issue permits authorizing two American hunters to import the trophies they garnered in legal hunts of black rhinoceros in Namibia.