Did you know DC has the Adolescent Substance Abuse Treatment Expansion Program (ASTEP) that serves youth with drug and alcohol problems? The program serves youth to age 21.Adolescents may access a network of certified substance abuse treatment providers near their home, school, or job. More information about ASTEP (the provider director, Q&As, and a step-by-step description of the process) are on the APRA (Addiction Prevention and Recovery Administration) web site.