Cal. Pub. Cont. Code § 20117

Notwithstanding any other provision of law, in the event there are two or more identical lowest or highest bids, as the case may be, submitted to a school district for the purchase, sale, or lease of real property, supplies, materials, equipment, services, bonds, or the awarding of any contract, pursuant to a provision requiring competitive bidding, the governing board of any school district may determine by lot which bid shall be accepted.