California Code, Health and Safety Code - HSC § 4989

The governing body shall prescribe the form of the bonds, and provide that of the indebtedness represented thereby a part shall be payable each year after their date, at a time and place to be designated in the bonds, together with interest, until the whole of the indebtedness has been paid.

The maturity date of the first bond or series of bonds may be deferred for a period not exceeding five years from the date of the bonds.