California Code, Government Code - GOV § 54777

(a) The bonds may be issued as serial bonds or as term bonds, in one or more series. The bonds shall be authorized by resolution of the county approved by a majority vote of its board of supervisors, and shall, as provided by the resolution or by the terms of an indenture pursuant to which the bonds are issued, bear the date of issuance; the date of maturity not exceeding seven years from their date of issuance; the rate of interest, either fixed or variable, and if variable, not in excess of the maximum rate of interest specified therein; be in the form provided; be in registered form; be payable in lawful money of the United States at the place or places provided within or without the State of California; and be subject to the terms of redemption provided.

(b) The bonds shall be sold by the county at the time and in the manner set out in the county's resolution. The sale may be a public or private sale, and for the price or prices, and on terms and conditions, as the county determines proper. Pending preparation of the definitive bonds, the county may issue interim receipts, certificates, or temporary bonds that shall be exchanged for definitive bonds.

(c) The bonds shall be repaid from tax revenues and any other legally available funds of the county.