CA Pub Cont Code Section 20919.28

A willful violation of Section 20919.26 occurs when the job order contractor or subcontractor knew or reasonably should have known of his or her obligations under the public works law and deliberately fails or refuses to comply with its provisions. The school district using job order contracting shall publish and distribute to the Labor Commissioner a list of all job order contractors or subcontractors who violate this provision and the school district shall not award a job order contract or any future job orders under an existing job order contract to any contractor or subcontractor who violates this provision during the effective period of debarment of the contractor or subcontractor.