Gov. Code, § 67860

The State of California does hereby pledge to and agree with the holders of any bonds issued, and with any public or private entity with which the board has entered into a contract or an agreement, pursuant to the provisions of this title, that the state will not alter or change the structure, organization, programs, or powers hereby vested in the board until those bonds are fully met or discharged and until the board has fully met or discharged its obligations pursuant to those agreements or contracts. However, nothing in this title shall preclude an alteration or change if, and when, adequate provision shall have been made by law for the protection from impairment of the contracts represented by those bonds or contracts or agreements, and the right to so alter or change is hereby reserved. The board is authorized to include this pledge and undertaking of the state in its bonds and contracts or agreements.