The Control of Noise at Work Regulations 2005 introduces new requirements to prevent work-related hearing damage. There is a significant 5 decibel reduction in the exposure levels at which certain actions must be taken and a new Exposure Limit Value has been set. The Regulations place emphasis on the importance of effective noise control measures, maintenance of equipment, worker information and training, and health surveillance. The starting point is an accurate assessment of the likely exposure and risk of hearing damage to all employees.