Treatment Improvement Protocols (TIPs), developed by the Center for Substance Abuse Treatment (CSAT), are best-practice guidelines for the treatment of substance use disorders. This revised TIP updates and combines three TIPs originally published in 1994 and 1995. It presents clinical guidelines to assist counselors in dealing with problems that routinely arise because of their clients’ status in the criminal justice system. These clients have multiple needs; they often have poor health, have histories of trauma, lack job and communication skills, and have educational deficits. A special feature throughout the TIP, “Advice to the Counselor,” provides the TIP’s most direct and accessible guidance for the counselor. Advice to the Counselor boxes provide a distillation of what the counselor needs to know and what steps to take, followed by more detailed reading of the relevant material in the chapter. The TIP attempts to provide tools and resources to increase the availability and improve the quality of substance abuse treatment to criminal justice clients. Figures and appendixes A-G