This research examined the intervention effects of a simple one-hour training session designed to raise the awareness of noise as a workplace hazard in conjunction with general safety perceptions and attitudes in the workplace. Several sessions were conducted for two organizations, at different locations. Control groups were also employed with both organizations. Participants were questioned using a 'safety climate' questionnaire and a 'noise at work' questionnaire. The results indicated that awareness of noise as a workplace hazard can be significantly increased with a simple intervention.