California Code, Welfare and Institutions Code - WIC § 5709

(a) A county shall not charge fees for Medi-Cal specialty mental health services to Medi-Cal beneficiaries who do not have a share of cost or Medi-Cal beneficiaries who have met their share of cost pursuant to Section 14005.9.  Regardless of the funding source involved, a county may charge fees to individuals who are not Medi-Cal beneficiaries and Medi-Cal beneficiaries who have a share of cost that has not been met, in accordance with their ability to pay for community mental health services rendered, but not in excess of actual costs in accordance with Section 14708.

(b) This section shall not be construed to waive a county's responsibility to screen for eligibility for Medi-Cal, any other insurance affordability program, or a county health program.