California Code, Welfare and Institutions Code - WIC § 14021.35

(a) The department shall prepare and submit amendments to the Medicaid state plan and apply for any necessary waivers in order to obtain federal financial participation to implement Drug Medi-Cal Treatment Program provisions contained in Section 14124.24.

(b) Upon federal approval for federal financial assistance, the department, in consultation with the State Department of Alcohol and Drug Programs, shall define the Drug Medi-Cal services, as needed, shall establish the standards under which those services qualify as Drug Medi-Cal reimbursable services, and shall develop appropriate rates of reimbursement for those services, subject to utilization controls.