Occupational deafness has occurred in many industries – mining, shipbuilding, engineering, textiles, construction and the wood trades being some of the more common. However, there was no specific legislation dealing with noise until 1990 when the Noise at Work Regulations 1989 came into operation. These Regulations were replaced by the Control of Noise at Work Regulations 2005 which came into operation on 6 April 2006, although there were transitional provisions for some work sectors. At the heart of the Regulations is a requirement for employers to make an assessment of the risks from noise.