Implementation of the Federal Hazard Communication Standard: does training work?

A joint labor-management training program intended to bring a large US manufacturing firm into compliance with the training requirements of the Federal Hazard Communication Standard appeared to achieve increases in employee knowledge and improved work practices. The program also evidenced positive indirect effects on management's institution of hazard control measures and organizational handling of health and safety issues. Most observed effects were maintained over a 2-year period after the training. More interactive, trainer-intensive delivery methods to smaller groups were associated with more positive effects on reported training usefulness and changes in work practices and working conditions.