California Code, Welfare and Institutions Code - WIC § 14008.6

(1) Assign to the state any rights to medical support and to payments for medical care from a third party that an individual may have on his or her own behalf or on behalf of any other family member for whom that individual has the legal authority to assign those rights, and is applying for or receiving medical services.  Receipt of medical services under this chapter or Chapter 8 (commencing with Section 14200) shall operate as an assignment by operation of law.  If those rights are assigned pursuant to this subdivision, the assignee may become an assignee of record by the local child support agency or other public official filing with the court clerk an affidavit showing that an assignment has been made or that there has been an assignment by operation of law.  This procedure does not limit any other means by which the assignee may become an assignee of record.

(2) Cooperate, as defined by subdivision (b) of Section 11477, with the local child support agency in establishing the paternity of a child born out of wedlock with respect to whom medical services are requested or claimed, and for whom that individual can legally assign the rights described in paragraph (1), and in obtaining any medical support, as provided in Section 17400 of the Family Code, and payments, as described in paragraph (1), due any person for whom medical services are requested or obtained.

(3) Cooperate with the state in identifying and providing information to assist the state in pursuing any third party who may be liable to pay for care and services available under the Medi-Cal program.