Cal. Public Contract Code § 10199.5

(a) The department, in the request for qualifications or request for proposals, may identify specific types of subcontractors that are required to be included in the design-build entity’s statement of qualifications. All construction subcontractors that are identified in the statement of qualifications shall be afforded the protections of Chapter 4 (commencing with Section 4100) of Part 1. (b) Following award of the design-build contract, except for those construction subcontractors listed in the statement of qualifications or proposal, the design-build entity shall proceed as follows in awarding construction subcontracts with a value exceeding one-half of 1 percent of the contract price allocable to construction work. (1) Provide public notice of availability of work to be subcontracted in accordance with the publication requirements applicable to the competitive bidding process of the department, including a fixed date and time on which qualifications statements, bids, or proposals will be due. (2) Establish reasonable qualification criteria and standards. (3) Award the subcontract either on a best value basis or to the lowest responsible bidder. The process may include prequalification or short-listing. (c) Subcontractors awarded construction subcontracts under this subdivision shall be afforded all the protections of Chapter 4 (commencing with Section 4100) of Part 1.