California Code, Health and Safety Code - HSC § 78310

(a) All bonds authorized by this article, which are sold and delivered as provided in this article, constitute valid and legally binding general obligations of the State of California, and the full faith and credit of the State of California are hereby pledged for the punctual payment of both the principal of and the interest on the bonds.

(b) There shall be collected annually, in the same manner and at the same time as other state revenue is collected, that sum, in addition to the ordinary revenues of the state, which is required to pay the principal of, and interest on, the bonds as provided in this article, and all officers charged by law with any duty in regard to the collection of the revenue shall perform each and every act that is necessary to collect this additional sum.