CA Pub Util Code Section 120681

The board may borrow money in anticipation of the sale of bonds which have been authorized to be issued, but which have not been sold and delivered, and may issue negotiable bond anticipation notes therefor and may renew the bond anticipation notes from time to time, but the maximum maturity of any bond anticipation notes, including the renewals thereof, shall not exceed five years from the date of delivery of the original bond anticipation notes. The bond anticipation notes may be paid from any money of the board available therefor and not otherwise pledged. If not previously otherwise paid, the bond anticipation notes shall be paid from the proceeds of the next sale of the bonds of the board in anticipation of which they were issued. The bond anticipation notes shall not be issued in any amount in excess of the aggregate amount of bonds which the board has been authorized to issue, less the amount of any bonds of the authorized issue previously sold, and also less the amount of other bond anticipation notes therefor issued and then outstanding. The bond anticipation notes shall be issued and sold in the same manner as the bonds. The bond anticipation notes and the resolution or resolutions authorizing them may contain any provisions, conditions, or limitations which a resolution of the board authorizing the issuance of bonds may contain.