California Code, Health and Safety Code - HSC § 124090

Any child between birth and 90 days after entrance into the first grade and all persons under 21 years of age who are eligible for the California Medical Assistance Program shall be eligible for services from the child health and disabilities prevention program in the county where they are a resident. The department, with review and recommendation by the board, shall adopt regulations specifying age groups that shall be given certain types of screening tests and recommendations for referral.

The first source of referral shall be the child's usual source of health care. If referral is required and no regular source of health care can be identified, the facility or provider providing health screening and evaluation services shall provide a list of three qualified sources of care, without prejudice for or against any specific source.