On Board Trains Occupational Health and Safety Regulations (SOR/87-184)
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Regulations are current to 2021-02-15 and last amended on 2021-01-01. Previous Versions
PART IVLevels of Sound (continued)
Warning Signs
4.8 (1) If an employee may be exposed to an A-weighted sound pressure level of more than 87 dBA at a work place, the employer shall, in conspicuous places within the work place, post and keep posted signs warning of a potentially hazardous level of sound.
(2) In order to determine whether an employee may be exposed to an A-weighted sound pressure level of more than 87 dBA at a work place, the measurement of the A-weighted sound pressure level shall be performed instantaneously, during normal working conditions, using the slow response setting of a sound level meter.
- SOR/2015-143, s. 19
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