Abstract: THE UNITED STATES PROBATION Department is charged, inter alia, with executing orders of the federal court regarding the correctional treatment of federal offenders. Among the orders enforced by the probation department are those requiring substance abuse treatment. Some offenders have already completed extensive treatment regimens while in prison. Others report that they have misrepresented their substance abuse histories to obtain more lenient sentences or become eligible for the Bureau of Prisons' early release program (for offenders who have completed their 500 hour in-house program). Beyond the normal burden of persons with various levels of substance abuse problems and history, these categories of offenders account for a large amount of wasted time, effort, and funds. In addressing its own need to care for persons with a spectrum of substance abuse issues, the United states Probation Department for the Eastern District of New York has undertaken an innovative substance abuse treatment program that is cost effective, has high rates of retention, and provides powerful tools for abstinence, recovery, and life.