To provide drought assistance to the State of California and other affected western States.

[AI summary unavailable — showing source text] Requires the Administrator of the Environmental Protection Agency (EPA), the Secretary of Commerce, and the Secretary of the Interior (Secretaries), in response to the declaration of a state of drought emergency in California, to provide the maximum quantity of water supplies possible to Central Valley Project (CVP) and Klamath Project agricultural, municipal and industrial, and refuge service and repayment contractors, State Water Project contractors, and any other locality or municipality in California. Sets forth actions to be taken to increase water supply, including: (1) authorizing actions to provide for real time operations of the Delta Cross Channel Gates to provide water supply and quality standards and ecosystem benefits for the duration of the drought, (2) implementing the San Joaquin River inflow-to-export ratio established by the National Marine Fisheries Service, (3) maintaining all rescheduled water supplies held in the San Luis Reservoir and Millerton Reservoir for all water users, (4) making WaterSMART grant funding administered by the Bureau of Reclamation available for eligible projects on a priority and expedited basis, and (5) issuing proposed rules to update s…