Cal. Sts. & High. Code § 33145

The authority may provide for the issuance, sale, or exchange of refunding bonds to redeem or retire any revenue bonds issued by it. All provisions of this part applicable to the issuance of bonds are applicable to refunding bonds and to their issuance, sale or exchange. However, even if the alternative method provided for in Section 32655 of submitting to the electors the question of issuing bonds in a specific amount has been followed, without the submission of the question of adopting the revenue bond method of financing, no submission to the electors of the proposition of issuing refunding bonds shall be required as a prerequisite to the issuance of such refunding bonds; and if the proposition of adopting the revenue bond method of financing has been submitted and carried, it shall be full authority for the issuance of refunding bonds.