The first phase involves participation in an Alcohol and Substance Abuse Correctional Treatment Center (ASACTC). Each of the ASACTC annexes is a medium-security facility that operates as a therapeutic community. Treatment includes drug education, counseling programs, and the development of skills and coping mechanisms to assist recovery. In the Community Reintegration phase, the participant moves to a work-release facility or to an appropriate placement in the community. In the third phase, Aftercare, offenders are released from prison and placed in transitional housing, where they continue in a structured treatment program while becoming reintegrated to the responsibilities of employment and community living. This phase, which lasts during the first year of probation supervision, focuses on relapse prevention. 3 appendixes