Cal. Pub. Contract Code § 20502
The contract shall require that the improvement be made, and the improvement shall be made, strictly in accordance with the plans and specifications contained in the report provided for in Chapter 3 of Part 1 of Division 14 of the Streets and Highways Code.
The contract for service shall be for a period not less than three years from and after the date electric energy and service is first delivered to the lighting district pursuant to such contract and shall be extended automatically thereafter for successive terms of one year each; provided, that the agreement may be terminated by either party upon not less than 60 days' written notice prior to the expiration date of the original term or any extended term; and provided further, that the contract for service may be for a period of less than three years by mutual consent of the city council and the contractor.
Ca. Pub. Cont. Code § 20502