Section 10339 Of Article 4. Contracts For Services From California Public Contract Code >> Division 2. >> Part 2. >> Chapter 2. >> Article 4.

. (a) Subject to the provisions of Section 10348, no state agency shall draft, or cause to be drafted, any invitation to bid or request for proposal, in connection with the awarding of a contract, in a manner that limits the bidding directly or indirectly to any one bidder.
  (b) Any contract awarded in violation of subdivision (a) shall be void.