S-2.1, r. 13 - Regulation respecting occupational health and safety

Full text
141. Measurement of noise: Noise emitted at a work station shall be measured at least once a year in any establishment that employs 50 workers or more and where such noise is likely to exceed the standards prescribed in sections 131 to 135.
Measurements shall also be taken within 30 days after a change in industrial processes or equipment or after the installation of devices for reducing the levels of noise emitted at a work station.
Measurements shall be entered in a register and kept for a period of at least 5 years.
O.C. 885-2001, s. 141.