Cal. Public Utilities Code § 130534

(a) The bonds may be issued as serial bonds or as term bonds, or the commission, in its discretion, may issue bonds of both types. (b) The bonds shall be authorized by resolution of the commission and shall bear the date or dates, mature at the time or times, not exceeding 50 years from their respective dates, bear interest at the rate or rates, be payable at the time or times, be in the denominations, be in registered form, carry the registration privileges, be executed in the manner, be payable in lawful money of the United States of America at the place or places, and be subject to the terms of redemption, as the resolution or resolutions may provide. (c) The bonds may be sold at public or private sale, and for the price or prices and on the terms and conditions as determined by the commission. (d) Pending preparation of the bonds, the commission may issue interim receipts, certificates, or temporary bonds which shall be exchanged for the bonds. The commission may sell any bonds at a price below the par value thereof without any limitation on price.