While numerous approaches to inhibit smoking have appeared in the literature, self-management is one technique that allows the client to take a more active part in the treatment. To study the effectiveness of self-management in a single-subject design, an 18 year old female college student who smoked mostly on weekends was told to self-monitor her smoking behavior. Treatment consisted of choosing a date to stop smoking and telling friends about her goal. She met weekly with a therapist. The 5-day treatment contract included a combination of self-management procedures: self-reinforcement, self-monitoring, use of environmental stimuli, contracting, engaging in alternative behaviors, use of a "smoking-spot", elimination of concomitant activity, and use of positive self-statements. From a baseline high of 96 cigarettes per week, the student reduced the number of cigarettes smoked to 12 during the 5-day intervention, and attained total abstinence during the maintenance phase. Follow-up contact after 17 and 20 months revealed the subject's continued abstinence from smoking. The combined intervention of the "smoking-spot" and contracted date to stop smoking were considered crucial to the success of the program. (JAC)