The four TASC programs currently operating in Colorado are primarily parole enhancement programs for drug and/or alcohol abusing male offenders. The Southeast TASC outcome study involved a subject pool of 84 parolees who participated in the TASC program and 70 parolees who did not participate (control group). Since the two groups were similar on the variables that have traditionally been used in other drug treatment research, it was possible to compare them on outcome variables. The outcome variables were the number of rearrests that occurred during the first year of parole, the number of days before returning to prison, and whether or not the parolees returned to prison. Of the 28 who successfully completed TASC, 6 returned to prison, with an average number of days out of 599. In the control group (n=70), 30 returned to prison, with the mean number of days out being 436. In the Western TASC outcome evaluation, the subject pool consisted of 38 parolees who participated in the TASC program and 107 parolees who did not (control group). Of those who participated in TASC, 14 parolees (37 percent) returned to prison within 2 years, with the mean number of days out being 307. For the control group, 54 parolees (50 percent) returned to prison within 2 years, with the mean number of days out being 280. 30 references and 1 table