Pursuant to §5 of the Regulation of the Minister of Economy and Labor of August 5, 2005 on health and safety at work associated with exposure to noise or mechanical vibrations (Journal of Laws of 2005, No. 157, item 1318) it is the employer's duty to eliminate the source of occupational risk related to exposure to noise or limiting this risk to the lowest possible level whilst taking into account available technical solutions and scientific and technical progress.Activities aimed at limiting exposure to noise and related risks should include technical and/or organizational solutions that can be implemented in a given situation, which must be strictly correlated with the applicable legal requirements.

Effective methods of minimizing exposure to noise require adherence to a proven and commonly accepted system of actions. According to it, the measures taken to reduce the risks associated withnoise should be in accordance with the following scheme:

1. Elimination of the hazard through its reduction at the source.
2. The use of collective noise protection measures (reduction of noise by transmission).
3. The use of personal protective equipment.
4. The use of organizational solutions.

The elimination of a hazard by reducing it at the source is a technical solution that brings the best results, but it is not always feasible for technical or economic reasons. In the case of noise, it consists of:

• using the quietest technological processesh,
• using the quietest means of production (both type and copy),
• reducing noise emissions from sources.