Cal. Welf. & Inst. Code § 14526

Participation in an adult day health care program shall require prior authorization by the department. The authorization request shall be initiated by the provider and shall include the results of the assessment screening conducted by the provider’s multidisciplinary team and the resulting individualized plan of care. Participation shall begin upon application by the prospective participant or upon referral from community or health agencies, or the physician, hospital, family, or friends of a potential participant.