This case study examines the evolution and impact of a training partnership between the Rutgers University/N.J. Industrial Union Council's (IUC) Occupational Safety and Health Project and the American Standard Corporation's Trenton facility. The study draws on on-site interviews with three employees who played a key role in the training program as well as survey data from a broader cross-section of the facility's workforce. Insights about the impact of training are viewed within the context of the adult education and evaluation literature, particularly studies focusing on participatory, interactive training techniques. Committed activists, a supportive union and management, and the infusion of skills and ideas from the Rutgers/IUC worker-to-worker health and safety program are viewed as key factors in understanding developments at the facility. In addition, the study emphasizes the importance of relationships developed between union activists, facility management, and the OSHEP training staff. On January 2, 2001, the corporation announced plans to shut down the facility within the year, and plans for training the rest of the work force were dropped. Although the site-specific training program was cut short, this case study traces changes in the plant's health and safety culture that occurred over a three-year period.