A district court upheld EPA's final TMDL for the Chesapeake Bay against challenges from farmer and home building groups. The TMDL—the largest ever developed by EPA—identifies the necessary pollution reductions of nitrogen, phosphorus, and sediment across Delaware, Maryland, New York, Pennsylvani...

The Ninth Circuit held that the California Air Resource Board (CARB) low carbon fuel standard's regulation of ethanol does not facially discriminate against out-of-state commerce. CARB treats all ethanol within each regional category the same, and its decision to draw one of the regional categories ...

The Ninth Circuit dismissed a conservation group's lawsuit challenging DOI's diversion of water from Icicle Creek, a tributary of the Wenatchee River and the Columbia River, to the Leavenworth National Fish Hatchery without a state permit. The group argued that DOI violated §8 of the Reclamation Ac...