Consolidated Statutes and Regulations
Consolidated Statutes
Consolidated Regulations
Annual Statutes and Regulations
Annual Statutes
Annual Regulations
Additional information
Québec Official Publisher
What’s new?
Information note
Policy of the Minister of Justice
Laws: Amendments
Laws: Provisions not in force
Laws: Provisions brought into force
Annual Statutes: PDF versions since 1996
Regulations: Amendments
Annual Regulations: PDF versions since 1996
Court Decisions
S-2.1, r. 13 - Regulation respecting occupational health and safety
Section 131
Disposition versions
131. The noise exposure limits are as follows:
(1) daily noise exposure level: 85 dBA, as defined using one of the following formulas:
(a) under the ISO Standard 9612:2009, Acoustics — Determination of occupational noise exposure — Engineering method:
LEX,8h = LP,A,eqTe + 10 lg [Te/T0] dB,
where Te = effective duration of the working day, in hours;
T0 = reference duration, 8 h;
(b) under CSA Standard Z107.56-13, Measurement of noise exposure 2014:
Lex,8h = Leq,t + 10 log (Tw/8),
where Tw = effective duration of the working day, in hours;
(2) peak sound pressure level (Lp,Cpeak): 140 dBC, using the following formula from ISO Standard 9612:2009, Acoustics – Determination of occupational noise exposure – Engineering method:
Lp’Cpeak = 10 lg[p2Cpeak/p20] dB,
where the reference value, p0, is 20 μPa.
131. Continuous noise: No worker in an establishment may be exposed to the continuous noise levels prescribed below during a time period longer than that indicated in the following table:
_____________________________________________________
Sound level (in Duration of
dBA, corrected dBA exposure* permitted
or dBA equivalent) (hours per day)
_____________________________________________________
85 16
86 13.9
87 12.1
88 10.6
89 9.2
90 8
91 7
92 6
93 5.3
94 4.6
95 4
96 3.5
97 3
98 2.6
99 2.3
100 2
101 1.75
102 1.50
103 1.3
104 1.2
105 1
106 0.9
107 0.8
108 0.7
109 0.6
110 0.5
111 0.45
112 0.4
113 0.35
114 0.30
115 0.25
>115 0
_____________________________________________________
Sound level (in Duration of
dBA, corrected dBA exposure* permitted
or dBA equivalent) (hours per day)
_____________________________________________________
85 16
86 13.9
87 12.1
88 10.6
89 9.2
90 8
91 7
92 6
93 5.3
94 4.6
95 4
96 3.5
97 3
98 2.6
99 2.3
100 2
101 1.75
102 1.50
103 1.3
104 1.2
105 1
106 0.9
107 0.8
108 0.7
109 0.6
110 0.5
111 0.45
112 0.4
113 0.35
114 0.30
115 0.25
>115 0
_____________________________________________________
* this includes any continuous exposure or number of short term exposures during a worker’s work period.
The permitted duration of exposure for any worker at any sound level indicated in the preceding table is reduced by one half, effective from a date to be determined by a regulation made in accordance with section 223 of the Act respecting occupational health and safety (chapter S-2.1).
