California Code, Public Contract Code - PCC § 3008

(a) To report bid rigging involving local government agencies and employees, including, but not limited to, county, city, and school district employees and officials, an interested person may contact the Antitrust Law Section of the Office of the Attorney General, 300 S. Spring St., Ste. 1702, Los Angeles, CA 90013, (800) 952-5225, or fill out the online complaint form on the Internet Web site of the Office of the Attorney General (Consumer Complaint Against a Business/Company) at ag.ca.gov/contact/complaint_form.php?cmplt=CL.

(b) To file a complaint regarding improper bidding involving state funding, an interested person may contact the Bureau of State Audits Whistleblower Hotline for any state agency or institution, at 800-952-5665, or by mail at 555 Capitol Mall, Suite 300, Sacramento, CA 95814.