It is hypothesized that the intervention will be more effective than the enhanced standard care control condition (on-unit NRT with self-help brochure) in producing biochemically verified abstinence from cigarettes at 3-, 6-, 12-, and 18-months follow up. Additionally, intervention participants will exhibit greater stage progression, commitment to abstinence, and delay in relapse to smoking following hospital discharge, factors predictive of future success with quitting smoking. Smoking cessation treatments have been shown to be highly cost-effective with the general population of smokers, and cost is likely to be a consideration in efforts to incorporate additional services into an inpatient psychiatric setting. Therefore, a secondary specific aim is to model the cost-effectiveness of the smoking cessation intervention. Intervention efficacy will be examined in a university-based psychiatric inpatient unit. A smaller pilot study will examine translation of the intervention to a county hospital serving a more diversified patient population.