Canada Occupational Health and Safety Regulations (SOR/86-304)

Regulations are current to 2017-11-20 and last amended on 2017-06-20. Previous Versions

SCHEDULE(Section 7.4)

Maximum Duration of Exposure to A-Weighted Sound Pressure Levels in the Work Place

Column IColumn II
A-weighted sound pressure level (dBA)Maximum duration of exposure in hours per employee per 24 hour period
878.0
886.4
895.0
904.0
913.2
922.5
932.0
941.6
951.3
961.0
970.80
980.64
990.50
1000.40
1010.32
1020.25
1030.20
1040.16
1050.13
1060.10
1070.080
1080.064
1090.050
1100.040
1110.032
1120.025
1130.020
1140.016
1150.013
1160.010
1170.008
1180.006
1190.005
1200.004
  • SOR/91-448, s. 1;
  • SOR/98-589, s. 8.
 
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