The efficacy of a multiple treatment smoking cessation program and three maintenance strategies was evaluated. Phases I and II of the study involved 51 subjects who participated in a five-day smoking cessation project consisting of lectures, demonstrations, practice exercises, negative smoking, and the teaching of self-control procedures. At the program's termination Phase III commenced and all subjects were randomly assigned to one of three maintenance conditions: (1) a four-week support group which offered an opportunity to discuss feelings and thoughts; (2) a four-week telephone contact system which enabled group members to call one another; and (3) a no contact control group. Extensive follow-up data were collected at the end of treatment and at two months, while only abstinence data were gathered at four months and at six months post-treatment. In addition, recidivists were required to complete a "Return to Smoking Questionnaire." Results indicated that the treatment program was extremely effective: 100% of the subjects were abstinent at the end of treatment and 76.5% were abstinent six months post-treatment. Recidivists reported a smoking rate that was 52% of baseline at the six month time period. There were no significant differences among the three maintenance conditions. (Author)