Civil Code section 9552

If a payment bond is not given and approved as required by Section 9550: (a) Neither the public entity awarding the public works contract nor any officer of the public entity shall audit, allow, or pay a claim of the direct contractor pursuant to the contract. (b) A claimant shall receive payment of a claim pursuant to a stop payment notice in the manner provided by Chapter 4 (commencing with Section 9350).