This paper describes a study examining the feasibility of a worksite health promotion program that was repeated twice in one year. Weight control and smoking cessation classes, which included a supporting incentive component, were made available at a worksite of 485 white-collar employees continuously throughout one year. Identical education programs were offered twice at six-month intervals. Results suggest that this model of program implementation is attractive to employees. Total participation over 12 months included an estimated 53% of overweight employees in the weight program and 23% of smokers in the smoking cessation program. The two series of classes, run back to back, generated similar participation. Thirty-nine percent of weight control participants and six percent of smoking cessation participants who enrolled in the first program also enrolled in the second. Weight losses and smoking cessation rates were comparable for the two cycles, with a mean weight loss of about seven pounds and a smoking cessation rate at six months of about 33%. Surveys of a random sample of employees at baseline and again at 12 months showed a 28% reduction in the prevalence of cigarette smoking, but no change in average weight or the prevalence of overweight. This study suggests that health promotion programs at worksites which offer repeated opportunities for employee participation are promising and deserve further study.