California Code, Water Code - WAT § 9603

(a) The Central Valley Flood Protection Plan shall be a descriptive document, and neither the plan nor anything in this part shall be construed to expand the liability of the state for the operation or maintenance of any flood management facility beyond the scope of the State Plan of Flood Control, except as specifically determined by the board pursuant to Section 9611.  Neither the development nor the adoption of the Central Valley Flood Protection Plan shall be construed to constitute any commitment by the state to provide, to continue to provide, or to maintain at, or to increase flood protection to, any particular level.

(b) The Central Valley Flood Protection Plan reflects a systemwide approach to protecting the lands currently protected from flooding by existing facilities of the State Plan of Flood Control.  Any flood protection benefits accruing to lands or communities outside the State Plan of Flood Control are incidental and shall not constitute any commitment by the state to provide, to continue to provide, or to maintain at, or to increase flood protection to, any particular level.