The Ninth Circuit upheld the dismissal of a trucking association's federal preemption challenge to a California environmental regulation on diesel trucks. The regulation requires heavy-duty diesel trucks, whose emissions contribute significantly to particulate matter and ozone pollution, to be upgra...

A California appellate court ordered the dismissal of an environmental group's California Environmental Quality Act (CEQA) lawsuit against a city in connection with emergency storm drain repair and revegetation projects. Following a storm drain failure in 2009 that caused significant erosion along a...

A district court held that BLM failed to adequately explain and support its decision to allow grazing on Sonoran Desert National Monument lands north of Interstate Highway 8 in violation of NEPA. Specifically, the court ruled that BLM's land health evaluation—an essential step in the process of de...