Cal. Pub. Util. Code § 13163

The board, by resolution adopted in connection with any issue of bonds pursuant to this chapter, may direct that there shall be included in each of the bonds of that issue a certification and recital that any and all acts, conditions and things required to exist, to happen and to be performed, precedent to and in the incurring of the indebtedness evidenced by that bond, and in the issuing of said bond, exist, have happened and have been performed in due time, form and manner, as required by the Constitution and statutes of the State of California, and that said bond, together with all other indebtedness of the district pertaining to the electric system for or on account of which the indebtedness evidenced by said bond was incurred, is within every debt and other limit prescribed by the Constitution and statutes of the State of California.