reg 5 Exposure limit values and exposure action values
(1) The lower exposure action values are— (a) a daily or weekly personal noise exposure of 80 dB (A-weighted); and (b) a peak sound pressure of 135 dB (C-weighted). (2) The upper exposure action values are— (a) a daily or weekly personal noise exposure of 85 dB (A-weighted); and (b) a peak sound pressure of 137 dB (C-weighted). (3) The exposure limit values are— (a) a daily or weekly personal noise exposure of 87 dB (A weighted); and (b) a peak sound pressure of 140 dB (C-weighted). (4) Subject to paragraph (5), where, as a result of activities, the exposure of an employee to noise varies markedly from day to day, an employer may use weekly personal noise exposure in place of daily noise exposure for the purpose of compliance with these Regulations. (5) Where an employer uses weekly noise exposure levels in accordance with paragraph (4) appropriate measures must be taken in order to reduce the risk associated with the relevant activities to as low as is reasonably practicable. (6) In applying the lower and upper exposure action values, no account shall be taken of attenuation provided by individual hearing protectors provided by the employer to be worn by the worker. (7) In applying the exposure limit values, account shall be taken of attenuation provided by individual hearing protectors provided by the employer to be worn by the worker.