California Code, Water Code - WAT § 1230

If the waters of an interstate body of water have been allocated between California and another state or Indian tribe by a compact, United States Supreme Court decree, or other appropriate method of allocating interstate waters, the board shall exercise its authority under this division in a manner consistent with the rights and responsibilities of the State of California under that interstate allocation and Section 1231 does not apply to the extent it is inconsistent with that interstate allocation.