Specifications include, but are not limited to: Engage inmates for a period of between 6 and 12 months. Provide residential treatment facilities set apart – in a completely separate facility or dedicated housing unit in a facility exclusively for use by RSAT participants - from the general correctional population. Focus on inmates’ substance use diagnosis and addiction-related needs. Develop the inmate’s cognitive, behavioral, social, vocational, and other skills to solve the substance abuse and related problems. Require urinalysis and/or other proven reliable forms of drug and alcohol testing for program participants including both periodic and random testing, and for former participants while they remain in the custody of the state or local government. ; Develop the inmate’s cognitive, behavioral, social, vocational, and other skills to solve the substance abuse and related problems.