An employer must, as far as is reasonably feasible, reduce exposure to noise by implementing noise control measures in the following order of priority:
- engineering control measures to eliminate or reduce noise at its source, or the modification of the routes by which noise reaches workplaces;
- administrative control measures to limit the number of persons exposed and the duration of exposure; and
- the use of hearing protective equipment if engineering and administrative control measures fail to reduce exposure below the noise-rating limit.