California Code, Health and Safety Code - HSC § 1367.668

(a) Every health care service plan contract, except a specialized health care service plan contract, that is issued, amended, or renewed on or after January 1, 2022, shall provide coverage without any cost sharing for a colorectal cancer screening test assigned either a grade of A or a grade of B by the United States Preventive Services Task Force. The required colonoscopy for a positive result on a test or procedure, other than a colonoscopy, that is a colorectal cancer screening examination or laboratory test identified assigned either a grade of A or a grade of B by the United States Preventive Services Task Force shall also be provided without any cost sharing.

(b) This section does not preclude a health care service plan that has coverage for out-of-network benefits from imposing cost-sharing requirements for the items or services described in this section that are delivered by an out-of-network provider.