To direct the Secretary and the Attorney General to promptly take all steps necessary or appropriate to execute and implement the San Luis Rey settlement agreement, and for other purposes.

Amends the San Luis Rey Indian Water Rights Settlement Act to direct the Secretary of the Interior and the Attorney General to take all necessary or appropriate steps to: (1) execute and implement on behalf of the United States the settlement agreement approved in principle by the city of Escondido, California, the Vista Irrigation District, the San Luis Rey River Indian Water Authority, and...