The department shall establish and administer, within the limits of legislative appropriations, a voucher system to address underserved areas and gaps in the state’s substance abuse treatment system and to assist in the payment of addiction treatment services provided by private licensed substance abuse treatment programs and hospital- or medical clinic-based programs for medical management of withdrawal. Services eligible for the voucher program include only those levels of care recognized by the American society of addiction medicine, with particular emphasis given to underserved areas and programs. The department shall ensure that a private licensed substance abuse treatment program, hospitals, and medical clinic programs accepting vouchers collects and reports process and outcome measures. The department shall develop requirements and provide training and technical assistance to a private licensed substance abuse treatment program, hospitals, and medical clinic programs accepting vouchers. A private licensed substance abuse treatment program, hospital, and medical clinic program accepting vouchers shall provide evidence-based services.