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

Section 1 Disposition versions

2023-07-27

1. Definitions: In this Regulation,

“ACNOR” means the Canadian Standards Association or the Association canadienne de normalisation;

“aerial basket lifting device” means any elevator equipped with an extendable/retractable or jointed arm designed to be fitted with a carrier and used to lift workers or supplies by means of a basket on work sites;

“air recirculation” means local exhaust ventilation by extraction, filtering of the air and redistribution of the filtered air in a work area;

“all-terrain vehicle” means any passenger vehicle designed for sports driving off public highways and whose net weight does not exceed 450 kg;

“ANSI” means the American National Standards Institute;

“asbestos” means the fibrous form of mineral silicates belonging to rock-forming minerals of the serpentine group, namely chrysotile, and the amphibole group, namely actinolite, amosite, anthophyllite, crocidolite, tremolite or any mixture containing one or more of these minerals;

“asbestos dust” means airborne asbestos particles or deposited asbestos particles liable to become airborne in the work area;

“ASME” means the American Society of Mechanical Engineers;

“ASTM” means the American Society for Testing and Materials;

“calculator” means a calculation tool that can be used to evaluate the daily noise exposure level (LEX,8h or Lex,8h) for the purpose of reducing the duration of workers’ daily exposure to noise;

“CEN” means the European Committee for Standardization;

“CGA” means the Canadian Gas Association or the Association canadienne du gaz;

“confined space” means any space that is completely or partially enclosed, such as a reservoir, a silo, a vat, a hopper, a chamber, a vault, a pit, including a pit and a reception pit for manure, a sewer, a pipe, a chimney, an access shaft, a truck or freight car tank, or a wind turbine blade, and that presents one or more of the following risks due to the confinement:

(1)  a risk of asphyxia, intoxication, loss of consciousness or judgment, fire or explosion associated with the atmosphere or internal temperature;

(2)  a risk of being buried;

(3)  a risk of drowning or being carried away due to the level or flow of a liquid;

“CSA” means the Canadian Standards Association or the Association canadienne de normalisation;

“daily noise exposure level” means the equivalent continuous sound pressure level (dBA) for an 8-hour working day. It results from measurements that include all the types of noise present, including impulse noises;

“dBA” means an A-weighted decibel measurement - the weighting reduces the significance of extreme frequencies, in particular low frequencies below 200 Hz, and increases the significance of frequencies around 2,500 Hz. A-weighting must be used for all measurements to evaluate LEX,8h or Lex,8h;

“dBC” means a C-weighted decibel measurement - the weighting reduces the significance of frequencies at or below 31 Hz and increases the significance of frequencies at or above 8,000 Hz. C-weighting must be used for all measurements to evaluate peak sound pressure level;

“EN” a European standard issued by the European Committee for Standardisation;

“equivalent continuous sound pressure level (dBA)” means the A-weighted continuous sound pressure level measured over a given period of time. It is identical to the sound pressure level of a constant noise having the same total A-weighted sound energy over the same period of time. It results from measurements that include all the types of noise present, including impulse noises. In the formulas used to calculate daily noise exposure level, it corresponds to Lp,A,eqTe or Leq,t, which is the A-weighted equivalent continuous sound pressure level for the duration of the working day in hours (Te or Tw);

“free fall distance” means the vertical distance measured from the beginning of a fall, from the harness D-ring to which the fall arrest connecting device is attached, to the point where the fall arrest system begins to apply force to stop the fall;

“friable material” means material that can be crumbled, pulverized or powdered by hand pressure when dry or that is crumbled, pulverized or powdered;

“heat stress” means heat unbalance in a worker caused by working in a hot environment;

“high-efficiency filter” means any filter capable of filtering particles 0.3 µm in size at an efficiency rate of at least 99.97%;

“hoisting apparatus” includes cranes, travelling cranes, gantries, winches, blocks, lift trucks, aerial basket lifting devices, work platform lifts, screw-type jacks, rack-type jacks and other similar apparatus but does not include elevators and dumb-waiters;

“IEC” means the International Electrotechnical Commission;

“impulse noise” means a noise of short duration (generally less than one second), peaking at a high level and characterized by a sharp increase and rapid decrease in sound level. The parameter used to measure an impulse noise is the C-weighted peak sound pressure level;

“instructor” means a person in charge of the practical training and communication of theoretical knowledge required for the acquisition of occupational skills;

“ISO” means the International Organization for Standardization;

“lanyard” means a rope or strap fastened at one end to a safety harness and at the other end to an anchorage system or other component of a fall arrest connecting device;

“lifeline” means a synthetic fibre rope, a steel wire rope or a strap attached to an anchorage system and used to guide a rope grab;

“machine” means an assembly, fitted with or intended to be fitted with a drive system other than directly applied human or animal effort, consisting of linked parts or components, at least one of which moves, and which are joined together for a specific application;

“NF EN” means the European standard, the French version of which (NF) is published in France by the Association française de normalisation;

“NFPA” means the National Fire Protection Association;

“NIOSH” means the National Institute for Occupational Safety and Health;

“peak sound pressure level” means the instantaneous peak sound pressure level measured in C-weighted decibels;

“rated load” means the maximum load set by the manufacturer or an engineer;

“respirable asbestos fibre” means asbestos fibre having a ratio of length to diameter of more than 3:1; only fibres longer than 5 μm must be taken into account for measurement purposes;

“respiratory zone” means the zone within a hemisphere having a 300 mm radius extending in front of the face and measured from the midpoint of an imaginary line joining the ears;

“SAE” means the Society of Automotive Engineers;

“safety factor” means the ratio between the rupture load and the working load;

“self-propelled vehicle” means a motor vehicle mounted on wheels, on tracks or on rails, used for the transportation of objects or materials, or for towing or pushing trailers or materials, with the exception of an all-terrain vehicle or an elevating or lifting device;

“stationary work station” means any work station in which a worker is required to perform his duties for at least 4 hours of his working day over a usual work surface of 30 m2 or less;

“washroom” means any room containing one or several toilets, urinals, sinks or showers to meet the sanitary needs of the workers of an establishment;

“work station” means any place, including a vehicle occupied by a worker to perform his work;

“ULC” means the Underwriters’ Laboratories of Canada or the Laboratoires des assureurs du Canada.

O.C. 885-2001, s. 1; O.C. 510-2008, s. 1; O.C. 1411-2018, s. 1; O.C. 49-2022, s. 1; O.C. 1223-2021, s. 1; O.C. 644-2022, s. 1; O.C. 821-2023, s. 1; O.C. 781-2021, s. 1; O.C. 43-2023, s. 1; I.N. 2023-08-01; O.C. 1112-2023, s. 1.

2023-07-25

1. Definitions: In this Regulation,

“ACNOR” means the Canadian Standards Association or the Association canadienne de normalisation;

“aerial basket lifting device” means any elevator equipped with an extendable/retractable or jointed arm designed to be fitted with a carrier and used to lift workers or supplies by means of a basket on work sites;

“air recirculation” means local exhaust ventilation by extraction, filtering of the air and redistribution of the filtered air in a work area;

“all-terrain vehicle” means any passenger vehicle designed for sports driving off public highways and whose net weight does not exceed 450 kg;

“ANSI” means the American National Standards Institute;

“asbestos” means the fibrous form of mineral silicates belonging to rock-forming minerals of the serpentine group, namely chrysotile, and the amphibole group, namely actinolite, amosite, anthophyllite, crocidolite, tremolite or any mixture containing one or more of these minerals;

“asbestos dust” means airborne asbestos particles or deposited asbestos particles liable to become airborne in the work area;

“ASME” means the American Society of Mechanical Engineers;

“ASTM” means the American Society for Testing and Materials;

“calculator” means a calculation tool that can be used to evaluate the daily noise exposure level (LEX,8h or Lex,8h) for the purpose of reducing the duration of workers’ daily exposure to noise;

“CGA” means the Canadian Gas Association or the Association canadienne du gaz;

“confined space” means any space that is completely or partially enclosed, such as a reservoir, a silo, a vat, a hopper, a chamber, a vault, a pit, including a pit and a reception pit for manure, a sewer, a pipe, a chimney, an access shaft, a truck or freight car tank, or a wind turbine blade, and that presents one or more of the following risks due to the confinement:

(1)  a risk of asphyxia, intoxication, loss of consciousness or judgment, fire or explosion associated with the atmosphere or internal temperature;

(2)  a risk of being buried;

(3)  a risk of drowning or being carried away due to the level or flow of a liquid;

“CSA” means the Canadian Standards Association or the Association canadienne de normalisation;

“daily noise exposure level” means the equivalent continuous sound pressure level (dBA) for an 8-hour working day. It results from measurements that include all the types of noise present, including impulse noises;

“dBA” means an A-weighted decibel measurement - the weighting reduces the significance of extreme frequencies, in particular low frequencies below 200 Hz, and increases the significance of frequencies around 2,500 Hz. A-weighting must be used for all measurements to evaluate LEX,8h or Lex,8h;

“dBC” means a C-weighted decibel measurement - the weighting reduces the significance of frequencies at or below 31 Hz and increases the significance of frequencies at or above 8,000 Hz. C-weighting must be used for all measurements to evaluate peak sound pressure level;

“EN” a European standard issued by the European Committee for Standardisation;

“equivalent continuous sound pressure level (dBA)” means the A-weighted continuous sound pressure level measured over a given period of time. It is identical to the sound pressure level of a constant noise having the same total A-weighted sound energy over the same period of time. It results from measurements that include all the types of noise present, including impulse noises. In the formulas used to calculate daily noise exposure level, it corresponds to Lp,A,eqTe or Leq,t, which is the A-weighted equivalent continuous sound pressure level for the duration of the working day in hours (Te or Tw);

“free fall distance” means the vertical distance measured from the beginning of a fall, from the harness D-ring to which the fall arrest connecting device is attached, to the point where the fall arrest system begins to apply force to stop the fall;

“friable material” means material that can be crumbled, pulverized or powdered by hand pressure when dry or that is crumbled, pulverized or powdered;

“heat stress” means heat unbalance in a worker caused by working in a hot environment;

“high-efficiency filter” means any filter capable of filtering particles 0.3 µm in size at an efficiency rate of at least 99.97%;

“hoisting apparatus” includes cranes, travelling cranes, gantries, winches, blocks, lift trucks, aerial basket lifting devices, work platform lifts, screw-type jacks, rack-type jacks and other similar apparatus but does not include elevators and dumb-waiters;

“impulse noise” means a noise of short duration (generally less than one second), peaking at a high level and characterized by a sharp increase and rapid decrease in sound level. The parameter used to measure an impulse noise is the C-weighted peak sound pressure level;

“instructor” means a person in charge of the practical training and communication of theoretical knowledge required for the acquisition of occupational skills;

“ISO” means the International Organization for Standardization;

“lanyard” means a rope or strap fastened at one end to a safety harness and at the other end to an anchorage system or other component of a fall arrest connecting device;

“lifeline” means a synthetic fibre rope, a steel wire rope or a strap attached to an anchorage system and used to guide a rope grab;

“NF EN” means the European standard, the French version of which (NF) is published in France by the Association française de normalisation;

“NFPA” means the National Fire Protection Association;

“NIOSH” means the National Institute for Occupational Safety and Health;

“peak sound pressure level” means the instantaneous peak sound pressure level measured in C-weighted decibels;

“protective device” means a set of devices which when used alone or with a protector on machinery, eliminates dangers or reduces risks for the health, safety and physical well-being of workers;

“rated load” means the maximum load set by the manufacturer or an engineer;

“respirable asbestos fibre” means asbestos fibre having a ratio of length to diameter of more than 3:1; only fibres longer than 5 μm must be taken into account for measurement purposes;

“respiratory zone” means the zone within a hemisphere having a 300 mm radius extending in front of the face and measured from the midpoint of an imaginary line joining the ears;

“SAE” means the Society of Automotive Engineers;

“safety factor” means the ratio between the rupture load and the working load;

“self-propelled vehicle” means a motor vehicle mounted on wheels, on tracks or on rails, used for the transportation of objects or materials, or for towing or pushing trailers or materials, with the exception of an all-terrain vehicle or an elevating or lifting device;

“stationary work station” means any work station in which a worker is required to perform his duties for at least 4 hours of his working day over a usual work surface of 30 m2 or less;

“washroom” means any room containing one or several toilets, urinals, sinks or showers to meet the sanitary needs of the workers of an establishment;

“work station” means any place, including a vehicle occupied by a worker to perform his work;

“ULC” means the Underwriters’ Laboratories of Canada or the Laboratoires des assureurs du Canada.

O.C. 885-2001, s. 1; O.C. 510-2008, s. 1; O.C. 1411-2018, s. 1; O.C. 49-2022, s. 1; O.C. 1223-2021, s. 1; O.C. 644-2022, s. 1; O.C. 821-2023, s. 1; O.C. 781-2021, s. 1; O.C. 43-2023, s. 1; I.N. 2023-08-01.

2023-06-16

1. Definitions: In this Regulation,

“ACNOR” means the Canadian Standards Association or the Association canadienne de normalisation;

“aerial basket lifting device” means any elevator equipped with an extendable/retractable or jointed arm designed to be fitted with a carrier and used to lift workers or supplies by means of a basket on work sites;

“air recirculation” means local exhaust ventilation by extraction, filtering of the air and redistribution of the filtered air in a work area;

“all-terrain vehicle” means any passenger vehicle designed for sports driving off public highways and whose net weight does not exceed 450 kg;

“ANSI” means the American National Standards Institute;

“asbestos” means the fibrous form of mineral silicates belonging to rock-forming minerals of the serpentine group, namely chrysotile, and the amphibole group, namely actinolite, amosite, anthophyllite, crocidolite, tremolite or any mixture containing one or more of these minerals;

“asbestos dust” means airborne asbestos particles or deposited asbestos particles liable to become airborne in the work area;

“ASME” means the American Society of Mechanical Engineers;

“ASTM” means the American Society for Testing and Materials;

“calculator” means a calculation tool that can be used to evaluate the daily noise exposure level (LEX,8h or Lex,8h) for the purpose of reducing the duration of workers’ daily exposure to noise;

“CGA” means the Canadian Gas Association or the Association canadienne du gaz;

“CSA” means the Canadian Standards Association or the Association canadienne de normalisation;

“daily noise exposure level” means the equivalent continuous sound pressure level (dBA) for an 8-hour working day. It results from measurements that include all the types of noise present, including impulse noises;

“dBA” means an A-weighted decibel measurement - the weighting reduces the significance of extreme frequencies, in particular low frequencies below 200 Hz, and increases the significance of frequencies around 2,500 Hz. A-weighting must be used for all measurements to evaluate LEX,8h or Lex,8h;

“dBC” means a C-weighted decibel measurement - the weighting reduces the significance of frequencies at or below 31 Hz and increases the significance of frequencies at or above 8,000 Hz. C-weighting must be used for all measurements to evaluate peak sound pressure level;

“EN” a European standard issued by the European Committee for Standardisation;

“enclosed area” means any area that is completely or partially enclosed, especially a reservoir, a silo, a vat, a hopper, a chamber, a vault, a tank, a sewer including a ditch and a temporary manure storage ditch, a pipe, a chimney, an access shaft, a truck or freight car tank, which has the following inherent conditions:

(1)  is not designed for human occupation, nor intended to be, but may occasionally be occupied for the performance of work;

(2)  access to which can only be had by a restricted entrance/exit;

(3)  can represent a risk for the health and safety of anyone who enters, owing to any one of the following factors:

(a)  its design, construction or location, except for the entrance/exit provided for in paragraph 2;

(b)  its atmosphere or insufficiency of natural or mechanical ventilation;

(c)  the materials or substances that it contains;

(d)  or other related hazards;

“equivalent continuous sound pressure level (dBA)” means the A-weighted continuous sound pressure level measured over a given period of time. It is identical to the sound pressure level of a constant noise having the same total A-weighted sound energy over the same period of time. It results from measurements that include all the types of noise present, including impulse noises. In the formulas used to calculate daily noise exposure level, it corresponds to Lp,A,eqTe or Leq,t, which is the A-weighted equivalent continuous sound pressure level for the duration of the working day in hours (Te or Tw);

“free fall distance” means the vertical distance measured from the beginning of a fall, from the harness D-ring to which the fall arrest connecting device is attached, to the point where the fall arrest system begins to apply force to stop the fall;

“friable material” means material that can be crumbled, pulverized or powdered by hand pressure when dry or that is crumbled, pulverized or powdered;

“heat stress” means heat unbalance in a worker caused by working in a hot environment;

“high-efficiency filter” means any filter capable of filtering particles 0.3 µm in size at an efficiency rate of at least 99.97%;

“hoisting apparatus” includes cranes, travelling cranes, gantries, winches, blocks, lift trucks, aerial basket lifting devices, work platform lifts, screw-type jacks, rack-type jacks and other similar apparatus but does not include elevators and dumb-waiters;

“impulse noise” means a noise of short duration (generally less than one second), peaking at a high level and characterized by a sharp increase and rapid decrease in sound level. The parameter used to measure an impulse noise is the C-weighted peak sound pressure level;

“instructor” means a person in charge of the practical training and communication of theoretical knowledge required for the acquisition of occupational skills;

“ISO” means the International Organization for Standardization;

“lanyard” means a rope or strap fastened at one end to a safety harness and at the other end to an anchorage system or other component of a fall arrest connecting device;

“lifeline” means a synthetic fibre rope, a steel wire rope or a strap attached to an anchorage system and used to guide a rope grab;

“NF EN” means the European standard, the French version of which (NF) is published in France by the Association française de normalisation;

“NFPA” means the National Fire Protection Association;

“NIOSH” means the National Institute for Occupational Safety and Health;

“peak sound pressure level” means the instantaneous peak sound pressure level measured in C-weighted decibels;

“protective device” means a set of devices which when used alone or with a protector on machinery, eliminates dangers or reduces risks for the health, safety and physical well-being of workers;

“rated load” means the maximum load set by the manufacturer or an engineer;

“respirable asbestos fibre” means asbestos fibre having a ratio of length to diameter of more than 3:1; only fibres longer than 5 μm must be taken into account for measurement purposes;

“respiratory zone” means the zone within a hemisphere having a 300 mm radius extending in front of the face and measured from the midpoint of an imaginary line joining the ears;

“SAE” means the Society of Automotive Engineers;

“safety factor” means the ratio between the rupture load and the working load;

“self-propelled vehicle” means a motor vehicle mounted on wheels, on tracks or on rails, used for the transportation of objects or materials, or for towing or pushing trailers or materials, with the exception of an all-terrain vehicle or an elevating or lifting device;

“stationary work station” means any work station in which a worker is required to perform his duties for at least 4 hours of his working day over a usual work surface of 30 m2 or less;

“washroom” means any room containing one or several toilets, urinals, sinks or showers to meet the sanitary needs of the workers of an establishment;

“work station” means any place, including a vehicle occupied by a worker to perform his work;

“ULC” means the Underwriters’ Laboratories of Canada or the Laboratoires des assureurs du Canada.

O.C. 885-2001, s. 1; O.C. 510-2008, s. 1; O.C. 1411-2018, s. 1; O.C. 49-2022, s. 1; O.C. 1223-2021, s. 1; O.C. 644-2022, s. 1; O.C. 821-2023, s. 1; O.C. 781-2021, s. 1.

2023-06-08

1. Definitions: In this Regulation,

“ACNOR” means the Canadian Standards Association or the Association canadienne de normalisation;

“aerial basket lifting device” means any elevator equipped with an extendable/retractable or jointed arm designed to be fitted with a carrier and used to lift workers or supplies by means of a basket on work sites;

“air recirculation” means local exhaust ventilation by extraction, filtering of the air and redistribution of the filtered air in a work area;

“all-terrain vehicle” means any passenger vehicle designed for sports driving off public highways and whose net weight does not exceed 450 kg;

“ANSI” means the American National Standards Institute;

“asbestos” means the fibrous form of mineral silicates belonging to rock-forming minerals of the serpentine group, namely chrysotile, and the amphibole group, namely actinolite, amosite, anthophyllite, crocidolite, tremolite or any mixture containing one or more of these minerals;

“asbestos dust” means airborne asbestos particles or deposited asbestos particles liable to become airborne in the work area;

“ASME” means the American Society of Mechanical Engineers;

“ASTM” means the American Society for Testing and Materials;

“CGA” means the Canadian Gas Association or the Association canadienne du gaz;

“continuous noise” means a steady noise including a noise caused by mechanical shocks of solid bodies or by impulses repeated at a frequency greater than one per second;

“corrected dBA” means the sound level expressed in dBA after an increase in the measured level of the predominant frequency band;

“CSA” means the Canadian Standards Association or the Association canadienne de normalisation;

“dB” means a dimensionless unit used to express in logarithmic form the relation existing between a measured quantity and a reference value which, when applied to sound pressure, is established in accordance with section 3 of publication No. 179 (second edition, 1973) of the Central Office of the International Electrotechnical Commission;

“dBA” means the value of the overall sound level measured on the A scale established in accordance with the standards and methods prescribed in publication No. 179 (second edition, 1973) of the Central Office of the International Electrotechnical Commission;

“EN” a European standard issued by the European Committee for Standardisation;

“enclosed area” means any area that is completely or partially enclosed, especially a reservoir, a silo, a vat, a hopper, a chamber, a vault, a tank, a sewer including a ditch and a temporary manure storage ditch, a pipe, a chimney, an access shaft, a truck or freight car tank, which has the following inherent conditions:

(1)  is not designed for human occupation, nor intended to be, but may occasionally be occupied for the performance of work;

(2)  access to which can only be had by a restricted entrance/exit;

(3)  can represent a risk for the health and safety of anyone who enters, owing to any one of the following factors:

(a)  its design, construction or location, except for the entrance/exit provided for in paragraph 2;

(b)  its atmosphere or insufficiency of natural or mechanical ventilation;

(c)  the materials or substances that it contains;

(d)  or other related hazards;

“free fall distance” means the vertical distance measured from the beginning of a fall, from the harness D-ring to which the fall arrest connecting device is attached, to the point where the fall arrest system begins to apply force to stop the fall;

“friable material” means material that can be crumbled, pulverized or powdered by hand pressure when dry or that is crumbled, pulverized or powdered;

“heat stress” means heat unbalance in a worker caused by working in a hot environment;

“high-efficiency filter” means any filter capable of filtering particles 0.3 µm in size at an efficiency rate of at least 99.97%;

“hoisting apparatus” includes cranes, travelling cranes, gantries, winches, blocks, lift trucks, aerial basket lifting devices, work platform lifts, screw-type jacks, rack-type jacks and other similar apparatus but does not include elevators and dumb-waiters;

“impact noise” means any noise caused by mechanical shocks of solid bodies or by impulses repeated or not repeated at a frequency less than or equal to one per second;

“instructor” means a person in charge of the practical training and communication of theoretical knowledge required for the acquisition of occupational skills;

“ISO” means the International Organization for Standardization;

“lanyard” means a rope or strap fastened at one end to a safety harness and at the other end to an anchorage system or other component of a fall arrest connecting device;

“lifeline” means a synthetic fibre rope, a steel wire rope or a strap attached to an anchorage system and used to guide a rope grab;

“linear dB” means the overall sound level measured in such a way that the various frequencies of the sound spectrum are in no way attenuated;

“NFPA” means the National Fire Protection Association;

“NIOSH” means the National Institute for Occupational Safety and Health;

“peak value” means the maximum level reached by a sound wave;

“predominant frequency band” means a frequency band whose level passes through a maximum that exceeds the arithmetic average of the levels of the preceding and following octave bands by 4 dB or more, and for the bands at the upper and lower limits of the sound spectrum, whose level exceeds that of the contiguous octave band by 5 dB;

“protective device” means a set of devices which when used alone or with a protector on machinery, eliminates dangers or reduces risks for the health, safety and physical well-being of workers;

“rated load” means the maximum load set by the manufacturer or an engineer;

“respirable asbestos fibre” means asbestos fibre having a ratio of length to diameter of more than 3:1; only fibres longer than 5 μm must be taken into account for measurement purposes;

“respiratory zone” means the zone within a hemisphere having a 300 mm radius extending in front of the face and measured from the midpoint of an imaginary line joining the ears;

“SAE” means the Society of Automotive Engineers;

“safety factor” means the ratio between the rupture load and the working load;

“self-propelled vehicle” means a motor vehicle mounted on wheels, on tracks or on rails, used for the transportation of objects or materials, or for towing or pushing trailers or materials, with the exception of an all-terrain vehicle or an elevating or lifting device;

“stationary work station” means any work station in which a worker is required to perform his duties for at least 4 hours of his working day over a usual work surface of 30 m2 or less;

“washroom” means any room containing one or several toilets, urinals, sinks or showers to meet the sanitary needs of the workers of an establishment;

“work station” means any place, including a vehicle occupied by a worker to perform his work;

“ULC” means the Underwriters’ Laboratories of Canada or the Laboratoires des assureurs du Canada.

O.C. 885-2001, s. 1; O.C. 510-2008, s. 1; O.C. 1411-2018, s. 1; O.C. 49-2022, s. 1; O.C. 1223-2021, s. 1; O.C. 644-2022, s. 1; O.C. 821-2023, s. 1.

2022-10-28

1. Definitions: In this Regulation,

“ACNOR” means the Canadian Standards Association or the Association canadienne de normalisation;

“aerial basket lifting device” means any elevator equipped with an extendable/retractable or jointed arm designed to be fitted with a carrier and used to lift workers or supplies by means of a basket on work sites;

“air recirculation” means local exhaust ventilation by extraction, filtering of the air and redistribution of the filtered air in a work area;

“all-terrain vehicle” means any passenger vehicle designed for sports driving off public highways and whose net weight does not exceed 450 kg;

“ANSI” means the American National Standards Institute;

“asbestos” means the fibrous form of mineral silicates belonging to rock-forming minerals of the serpentine group, namely chrysotile, and the amphibole group, namely actinolite, amosite, anthophyllite, crocidolite, tremolite or any mixture containing one or more of these minerals;

“asbestos dust” means airborne asbestos particles or deposited asbestos particles liable to become airborne in the work area;

“ASME” means the American Society of Mechanical Engineers;

“CGA” means the Canadian Gas Association or the Association canadienne du gaz;

“continuous noise” means a steady noise including a noise caused by mechanical shocks of solid bodies or by impulses repeated at a frequency greater than one per second;

“corrected dBA” means the sound level expressed in dBA after an increase in the measured level of the predominant frequency band;

“CSA” means the Canadian Standards Association or the Association canadienne de normalisation;

“dB” means a dimensionless unit used to express in logarithmic form the relation existing between a measured quantity and a reference value which, when applied to sound pressure, is established in accordance with section 3 of publication No. 179 (second edition, 1973) of the Central Office of the International Electrotechnical Commission;

“dBA” means the value of the overall sound level measured on the A scale established in accordance with the standards and methods prescribed in publication No. 179 (second edition, 1973) of the Central Office of the International Electrotechnical Commission;

“EN” a European standard issued by the European Committee for Standardisation;

“enclosed area” means any area that is completely or partially enclosed, especially a reservoir, a silo, a vat, a hopper, a chamber, a vault, a tank, a sewer including a ditch and a temporary manure storage ditch, a pipe, a chimney, an access shaft, a truck or freight car tank, which has the following inherent conditions:

(1)  is not designed for human occupation, nor intended to be, but may occasionally be occupied for the performance of work;

(2)  access to which can only be had by a restricted entrance/exit;

(3)  can represent a risk for the health and safety of anyone who enters, owing to any one of the following factors:

(a)  its design, construction or location, except for the entrance/exit provided for in paragraph 2;

(b)  its atmosphere or insufficiency of natural or mechanical ventilation;

(c)  the materials or substances that it contains;

(d)  or other related hazards;

“free fall distance” means the vertical distance measured from the beginning of a fall, from the harness D-ring to which the fall arrest connecting device is attached, to the point where the fall arrest system begins to apply force to stop the fall;

“friable material” means material that can be crumbled, pulverized or powdered by hand pressure when dry or that is crumbled, pulverized or powdered;

“heat stress” means heat unbalance in a worker caused by working in a hot environment;

“high-efficiency filter” means any filter capable of filtering particles 0.3 µm in size at an efficiency rate of at least 99.97%;

“hoisting apparatus” includes cranes, travelling cranes, gantries, winches, blocks, lift trucks, aerial basket lifting devices, work platform lifts, screw-type jacks, rack-type jacks and other similar apparatus but does not include elevators and dumb-waiters;

“impact noise” means any noise caused by mechanical shocks of solid bodies or by impulses repeated or not repeated at a frequency less than or equal to one per second;

“instructor” means a person in charge of the practical training and communication of theoretical knowledge required for the acquisition of occupational skills;

“ISO” means the International Organization for Standardization;

“lanyard” means a rope or strap fastened at one end to a safety harness and at the other end to an anchorage system or other component of a fall arrest connecting device;

“lifeline” means a synthetic fibre rope, a steel wire rope or a strap attached to an anchorage system and used to guide a rope grab;

“linear dB” means the overall sound level measured in such a way that the various frequencies of the sound spectrum are in no way attenuated;

“NFPA” means the National Fire Protection Association;

“NIOSH” means the National Institute for Occupational Safety and Health;

“peak value” means the maximum level reached by a sound wave;

“predominant frequency band” means a frequency band whose level passes through a maximum that exceeds the arithmetic average of the levels of the preceding and following octave bands by 4 dB or more, and for the bands at the upper and lower limits of the sound spectrum, whose level exceeds that of the contiguous octave band by 5 dB;

“protective device” means a set of devices which when used alone or with a protector on machinery, eliminates dangers or reduces risks for the health, safety and physical well-being of workers;

“rated load” means the maximum load set by the manufacturer or an engineer;

“respirable asbestos fibre” means asbestos fibre having a ratio of length to diameter of more than 3:1; only fibres longer than 5 μm must be taken into account for measurement purposes;

“respiratory zone” means the zone within a hemisphere having a 300 mm radius extending in front of the face and measured from the midpoint of an imaginary line joining the ears;

“SAE” means the Society of Automotive Engineers;

“safety factor” means the ratio between the rupture load and the working load;

“self-propelled vehicle” means a motor vehicle mounted on wheels, on tracks or on rails, used for the transportation of objects or materials, or for towing or pushing trailers or materials, with the exception of an all-terrain vehicle or an elevating or lifting device;

“stationary work station” means any work station in which a worker is required to perform his duties for at least 4 hours of his working day over a usual work surface of 30 m2 or less;

“washroom” means any room containing one or several toilets, urinals, sinks or showers to meet the sanitary needs of the workers of an establishment;

“work station” means any place, including a vehicle occupied by a worker to perform his work;

“ULC” means the Underwriters’ Laboratories of Canada or the Laboratoires des assureurs du Canada.

O.C. 885-2001, s. 1; O.C. 510-2008, s. 1; O.C. 1411-2018, s. 1; O.C. 49-2022, s. 1; O.C. 1223-2021, s. 1; O.C. 644-2022, s. 1.

2022-03-22

1. Definitions: In this Regulation,

“ACNOR” means the Canadian Standards Association or the Association canadienne de normalisation;

“aerial basket lifting device” means any elevator equipped with an extendable/retractable or jointed arm designed to be fitted with a carrier and used to lift workers or supplies by means of a basket on work sites;

“air recirculation” means local exhaust ventilation by extraction, filtering of the air and redistribution of the filtered air in a work area;

“all-terrain vehicle” means any passenger vehicle designed for sports driving off public highways and whose net weight does not exceed 450 kg;

“ANSI” means the American National Standards Institute;

“asbestos” means the fibrous form of mineral silicates belonging to rock-forming minerals of the serpentine group, namely chrysotile, and the amphibole group, namely actinolite, amosite, anthophyllite, crocidolite, tremolite or any mixture containing one or more of these minerals;

“asbestos dust” means airborne asbestos particles or deposited asbestos particles liable to become airborne in the work area;

“ASME” means the American Society of Mechanical Engineers;

“CGA” means the Canadian Gas Association or the Association canadienne du gaz;

“continuous noise” means a steady noise including a noise caused by mechanical shocks of solid bodies or by impulses repeated at a frequency greater than one per second;

“corrected dBA” means the sound level expressed in dBA after an increase in the measured level of the predominant frequency band;

“CSA” means the Canadian Standards Association or the Association canadienne de normalisation;

“dB” means a dimensionless unit used to express in logarithmic form the relation existing between a measured quantity and a reference value which, when applied to sound pressure, is established in accordance with section 3 of publication No. 179 (second edition, 1973) of the Central Office of the International Electrotechnical Commission;

“dBA” means the value of the overall sound level measured on the A scale established in accordance with the standards and methods prescribed in publication No. 179 (second edition, 1973) of the Central Office of the International Electrotechnical Commission;

“EN” a European standard issued by the European Committee for Standardisation;

“enclosed area” means any area that is completely or partially enclosed, especially a reservoir, a silo, a vat, a hopper, a chamber, a vault, a tank, a sewer including a ditch and a temporary manure storage ditch, a pipe, a chimney, an access shaft, a truck or freight car tank, which has the following inherent conditions:

(1)  is not designed for human occupation, nor intended to be, but may occasionally be occupied for the performance of work;

(2)  access to which can only be had by a restricted entrance/exit;

(3)  can represent a risk for the health and safety of anyone who enters, owing to any one of the following factors:

(a)  its design, construction or location, except for the entrance/exit provided for in paragraph 2;

(b)  its atmosphere or insufficiency of natural or mechanical ventilation;

(c)  the materials or substances that it contains;

(d)  or other related hazards;

“free fall distance” means the vertical distance measured from the beginning of a fall, from the harness D-ring to which the fall arrest connecting device is attached, to the point where the fall arrest system begins to apply force to stop the fall;

“friable material” means material that can be crumbled, pulverized or powdered by hand pressure when dry or that is crumbled, pulverized or powdered;

“heat stress” means heat unbalance in a worker caused by working in a hot environment;

“high-efficiency filter” means any filter capable of filtering particles 0.3 µm in size at an efficiency rate of at least 99.97%;

“hoisting apparatus” includes cranes, travelling cranes, gantries, winches, blocks, lift trucks, aerial basket lifting devices, work platform lifts, screw-type jacks, rack-type jacks and other similar apparatus but does not include elevators and dumb-waiters;

“impact noise” means any noise caused by mechanical shocks of solid bodies or by impulses repeated or not repeated at a frequency less than or equal to one per second;

“instructor” means a person in charge of the practical training and communication of theoretical knowledge required for the acquisition of occupational skills;

“ISO” means the International Organization for Standardization;

“lanyard” means a rope or strap fastened at one end to a safety harness and at the other end to an anchorage system or other component of a fall arrest connecting device;

“lifeline” means a synthetic fibre rope, a steel wire rope or a strap attached to an anchorage system and used to guide a rope grab;

“linear dB” means the overall sound level measured in such a way that the various frequencies of the sound spectrum are in no way attenuated;

“NFPA” means the National Fire Protection Association;

“NIOSH” means the National Institute for Occupational Safety and Health;

“peak value” means the maximum level reached by a sound wave;

“predominant frequency band” means a frequency band whose level passes through a maximum that exceeds the arithmetic average of the levels of the preceding and following octave bands by 4 dB or more, and for the bands at the upper and lower limits of the sound spectrum, whose level exceeds that of the contiguous octave band by 5 dB;

“protective device” means a set of devices which when used alone or with a protector on machinery, eliminates dangers or reduces risks for the health, safety and physical well-being of workers;

“rated load” means the maximum load set by the manufacturer or an engineer;

“respirable asbestos fibre” means asbestos fibre having a diameter of less than 3 µm and a ratio of length to diameter of more than 3:1. Only fibres longer than 5 µm are taken into account for measurement purposes;

“respiratory zone” means the zone within a hemisphere having a 300 mm radius extending in front of the face and measured from the midpoint of an imaginary line joining the ears;

“SAE” means the Society of Automotive Engineers;

“safety factor” means the ratio between the rupture load and the working load;

“self-propelled vehicle” means a motor vehicle mounted on wheels, on tracks or on rails, used for the transportation of objects or materials, or for towing or pushing trailers or materials, with the exception of an all-terrain vehicle or an elevating or lifting device;

“stationary work station” means any work station in which a worker is required to perform his duties for at least 4 hours of his working day over a usual work surface of 30 m2 or less;

“washroom” means any room containing one or several toilets, urinals, sinks or showers to meet the sanitary needs of the workers of an establishment;

“work station” means any place, including a vehicle occupied by a worker to perform his work;

“ULC” means the Underwriters’ Laboratories of Canada or the Laboratoires des assureurs du Canada.

O.C. 885-2001, s. 1; O.C. 510-2008, s. 1; O.C. 1411-2018, s. 1; O.C. 49-2022, s. 1; O.C. 1223-2021, s. 1.

2022-02-10

1. Definitions: In this Regulation,

“ACNOR” means the Canadian Standards Association or the Association canadienne de normalisation;

“aerial basket lifting device” means any elevator equipped with an extendable/retractable or jointed arm designed to be fitted with a carrier and used to lift workers or supplies by means of a basket on work sites;

“air recirculation” means local exhaust ventilation by extraction, filtering of the air and redistribution of the filtered air in a work area;

“all-terrain vehicle” means any passenger vehicle designed for sports driving off public highways and whose net weight does not exceed 450 kg;

“ANSI” means the American National Standards Institute;

“asbestos” means the fibrous form of mineral silicates belonging to rock-forming minerals of the serpentine group, namely chrysotile, and the amphibole group, namely actinolite, amosite, anthophyllite, crocidolite, tremolite or any mixture containing one or more of these minerals;

“asbestos dust” means airborne asbestos particles or deposited asbestos particles liable to become airborne in the work area;

“ASME” means the American Society of Mechanical Engineers;

“CGA” means the Canadian Gas Association or the Association canadienne du gaz;

“continuous noise” means a steady noise including a noise caused by mechanical shocks of solid bodies or by impulses repeated at a frequency greater than one per second;

“corrected dBA” means the sound level expressed in dBA after an increase in the measured level of the predominant frequency band;

“CSA” means the Canadian Standards Association or the Association canadienne de normalisation;

“dB” means a dimensionless unit used to express in logarithmic form the relation existing between a measured quantity and a reference value which, when applied to sound pressure, is established in accordance with section 3 of publication No. 179 (second edition, 1973) of the Central Office of the International Electrotechnical Commission;

“dBA” means the value of the overall sound level measured on the A scale established in accordance with the standards and methods prescribed in publication No. 179 (second edition, 1973) of the Central Office of the International Electrotechnical Commission;

“EN” a European standard issued by the European Committee for Standardisation;

“enclosed area” means any area that is completely or partially enclosed, especially a reservoir, a silo, a vat, a hopper, a chamber, a vault, a tank, a sewer including a ditch and a temporary manure storage ditch, a pipe, a chimney, an access shaft, a truck or freight car tank, which has the following inherent conditions:

(1)  is not designed for human occupation, nor intended to be, but may occasionally be occupied for the performance of work;

(2)  access to which can only be had by a restricted entrance/exit;

(3)  can represent a risk for the health and safety of anyone who enters, owing to any one of the following factors:

(a)  its design, construction or location, except for the entrance/exit provided for in paragraph 2;

(b)  its atmosphere or insufficiency of natural or mechanical ventilation;

(c)  the materials or substances that it contains;

(d)  or other related hazards;

“free fall distance” means the vertical distance measured from the beginning of a fall, from the harness D-ring to which the fall arrest connecting device is attached, to the point where the fall arrest system begins to apply force to stop the fall;

“friable material” means material that can be crumbled, pulverized or powdered by hand pressure when dry or that is crumbled, pulverized or powdered;

“heat stress” means heat unbalance in a worker caused by working in a hot environment;

“high-efficiency filter” means any filter capable of filtering particles 0.3 µm in size at an efficiency rate of at least 99.97%;

“hoisting apparatus” includes cranes, travelling cranes, gantries, winches, blocks, lift trucks, aerial basket lifting devices, work platform lifts, screw-type jacks, rack-type jacks and other similar apparatus but does not include elevators and dumb-waiters;

“impact noise” means any noise caused by mechanical shocks of solid bodies or by impulses repeated or not repeated at a frequency less than or equal to one per second;

“instructor” means a person in charge of the practical training and communication of theoretical knowledge required for the acquisition of occupational skills;

“lanyard” means a rope or strap fastened at one end to a safety harness and at the other end to an anchorage system or other component of a fall arrest connecting device;

“lifeline” means a synthetic fibre rope, a steel wire rope or a strap attached to an anchorage system and used to guide a rope grab;

“linear dB” means the overall sound level measured in such a way that the various frequencies of the sound spectrum are in no way attenuated;

“NFPA” means the National Fire Protection Association;

“NIOSH” means the National Institute for Occupational Safety and Health;

“peak value” means the maximum level reached by a sound wave;

“predominant frequency band” means a frequency band whose level passes through a maximum that exceeds the arithmetic average of the levels of the preceding and following octave bands by 4 dB or more, and for the bands at the upper and lower limits of the sound spectrum, whose level exceeds that of the contiguous octave band by 5 dB;

“protective device” means a set of devices which when used alone or with a protector on machinery, eliminates dangers or reduces risks for the health, safety and physical well-being of workers;

“rated load” means the maximum load set by the manufacturer or an engineer;

“respirable asbestos fibre” means asbestos fibre having a diameter of less than 3 µm and a ratio of length to diameter of more than 3:1. Only fibres longer than 5 µm are taken into account for measurement purposes;

“respiratory zone” means the zone within a hemisphere having a 300 mm radius extending in front of the face and measured from the midpoint of an imaginary line joining the ears;

“SAE” means the Society of Automotive Engineers;

“safety factor” means the ratio between the rupture load and the working load;

“self-propelled vehicle” means a motor vehicle mounted on wheels, on tracks or on rails, used for the transportation of objects or materials, or for towing or pushing trailers or materials, with the exception of an all-terrain vehicle or an elevating or lifting device;

“stationary work station” means any work station in which a worker is required to perform his duties for at least 4 hours of his working day over a usual work surface of 30 m2 or less;

“washroom” means any room containing one or several toilets, urinals, sinks or showers to meet the sanitary needs of the workers of an establishment;

“work station” means any place, including a vehicle occupied by a worker to perform his work;

“ULC” means the Underwriters’ Laboratories of Canada or the Laboratoires des assureurs du Canada.

O.C. 885-2001, s. 1; O.C. 510-2008, s. 1; O.C. 1411-2018, s. 1; O.C. 49-2022, s. 1.

2019-01-03

1. Definitions: In this Regulation,

“ACNOR” means the Canadian Standards Association or the Association canadienne de normalisation;

“aerial basket lifting device” means any elevator equipped with an extendable/retractable or jointed arm designed to be fitted with a carrier and used to lift workers or supplies by means of a basket on work sites;

“air recirculation” means local exhaust ventilation by extraction, filtering of the air and redistribution of the filtered air in a work area;

“all-terrain vehicle” means any passenger vehicle designed for sports driving off public highways and whose net weight does not exceed 450 kg;

“ANSI” means the American National Standards Institute;

“asbestos” means the fibrous form of mineral silicates belonging to rock-forming minerals of the serpentine group, namely chrysotile, and the amphibole group, namely actinolite, amosite, anthophyllite, crocidolite, tremolite or any mixture containing one or more of these minerals;

“asbestos dust” means airborne asbestos particles or deposited asbestos particles liable to become airborne in the work area;

“ASME” means the American Society of Mechanical Engineers;

“CGA” means the Canadian Gas Association or the Association canadienne du gaz;

“continuous noise” means a steady noise including a noise caused by mechanical shocks of solid bodies or by impulses repeated at a frequency greater than one per second;

“corrected dBA” means the sound level expressed in dBA after an increase in the measured level of the predominant frequency band;

“CSA” means the Canadian Standards Association or the Association canadienne de normalisation;

“dB” means a dimensionless unit used to express in logarithmic form the relation existing between a measured quantity and a reference value which, when applied to sound pressure, is established in accordance with section 3 of publication No. 179 (second edition, 1973) of the Central Office of the International Electrotechnical Commission;

“dBA” means the value of the overall sound level measured on the A scale established in accordance with the standards and methods prescribed in publication No. 179 (second edition, 1973) of the Central Office of the International Electrotechnical Commission;

“EN” a European standard issued by the European Committee for Standardisation;

“enclosed area” means any area that is completely or partially enclosed, especially a reservoir, a silo, a vat, a hopper, a chamber, a vault, a tank, a sewer including a ditch and a temporary manure storage ditch, a pipe, a chimney, an access shaft, a truck or freight car tank, which has the following inherent conditions:

(1)  is not designed for human occupation, nor intended to be, but may occasionally be occupied for the performance of work;

(2)  access to which can only be had by a restricted entrance/exit;

(3)  can represent a risk for the health and safety of anyone who enters, owing to any one of the following factors:

(a)  its design, construction or location, except for the entrance/exit provided for in paragraph 2;

(b)  its atmosphere or insufficiency of natural or mechanical ventilation;

(c)  the materials or substances that it contains;

(d)  or other related hazards;

“free fall distance” means the vertical distance measured from the beginning of a fall, from the harness D-ring to which the fall arrest connecting device is attached, to the point where the fall arrest system begins to apply force to stop the fall;

“friable material” means material that can be crumbled, pulverized or powdered by hand pressure when dry or that is crumbled, pulverized or powdered;

“heat stress” means heat unbalance in a worker caused by working in a hot environment;

“high-efficiency filter” means any filter capable of filtering particles 0.3 µm in size at an efficiency rate of at least 99.97%;

“hoisting apparatus” includes cranes, travelling cranes, gantries, winches, blocks, lift trucks, aerial basket lifting devices, work platform lifts, screw-type jacks, rack-type jacks and other similar apparatus but does not include elevators and dumb-waiters;

“impact noise” means any noise caused by mechanical shocks of solid bodies or by impulses repeated or not repeated at a frequency less than or equal to one per second;

“instructor” means a person in charge of the practical training and communication of theoretical knowledge required for the acquisition of occupational skills;

“lanyard” means a rope or strap fastened at one end to a safety harness and at the other end to an anchorage system or other component of a fall arrest connecting device;

“lifeline” means a synthetic fibre rope, a steel wire rope or a strap attached to an anchorage system and used to guide a rope grab;

“linear dB” means the overall sound level measured in such a way that the various frequencies of the sound spectrum are in no way attenuated;

“NFPA” means the National Fire Protection Association;

“peak value” means the maximum level reached by a sound wave;

“predominant frequency band” means a frequency band whose level passes through a maximum that exceeds the arithmetic average of the levels of the preceding and following octave bands by 4 dB or more, and for the bands at the upper and lower limits of the sound spectrum, whose level exceeds that of the contiguous octave band by 5 dB;

“protective device” means a set of devices which when used alone or with a protector on machinery, eliminates dangers or reduces risks for the health, safety and physical well-being of workers;

“rated load” means the maximum load set by the manufacturer or an engineer;

“respirable asbestos fibre” means asbestos fibre having a diameter of less than 3 µm and a ratio of length to diameter of more than 3:1. Only fibres longer than 5 µm are taken into account for measurement purposes;

“respiratory zone” means the zone within a hemisphere having a 300 mm radius extending in front of the face and measured from the midpoint of an imaginary line joining the ears;

“SAE” means the Society of Automotive Engineers;

“safety factor” means the ratio between the rupture load and the working load;

“self-propelled vehicle” means a motor vehicle mounted on wheels, on tracks or on rails, used for the transportation of objects or materials, or for towing or pushing trailers or materials, with the exception of an all-terrain vehicle or an elevating or lifting device;

“stationary work station” means any work station in which a worker is required to perform his duties for at least 4 hours of his working day over a usual work surface of 30 m2 or less;

“washroom” means any room containing one or several toilets, urinals, sinks or showers to meet the sanitary needs of the workers of an establishment;

“work station” means any place, including a vehicle occupied by a worker to perform his work;

“ULC” means the Underwriters’ Laboratories of Canada or the Laboratoires des assureurs du Canada.

O.C. 885-2001, s. 1; O.C. 510-2008, s. 1; O.C. 1411-2018, s. 1.

2012-09-01

1. Definitions: In this Regulation,

“ACNOR” means the Canadian Standards Association or the Association canadienne de normalisation;

“aerial basket lifting device” means any elevator equipped with an extendable/retractable or jointed arm designed to be fitted with a carrier and used to lift workers or supplies by means of a basket on work sites;

“air recirculation” means local exhaust ventilation by extraction, filtering of the air and redistribution of the filtered air in a work area;

“all-terrain vehicle” means any passenger vehicle designed for sports driving off public highways and whose net weight does not exceed 450 kg;

“ANSI” means the American National Standards Institute;

“asbestos” means the fibrous form of mineral silicates belonging to rock-forming minerals of the serpentine group, namely chrysotile, and the amphibole group, namely actinolite, amosite, anthophyllite, crocidolite, tremolite or any mixture containing one or more of these minerals;

“asbestos dust” means airborne asbestos particles or deposited asbestos particles liable to become airborne in the work area;

“ASME” means the American Society of Mechanical Engineers;

“CGA” means the Canadian Gas Association or the Association canadienne du gaz;

“continuous noise” means a steady noise including a noise caused by mechanical shocks of solid bodies or by impulses repeated at a frequency greater than one per second;

“corrected dBA” means the sound level expressed in dBA after an increase in the measured level of the predominant frequency band;

“CSA” means the Canadian Standards Association or the Association canadienne de normalisation;

“dB” means a dimensionless unit used to express in logarithmic form the relation existing between a measured quantity and a reference value which, when applied to sound pressure, is established in accordance with section 3 of publication No. 179 (second edition, 1973) of the Central Office of the International Electrotechnical Commission;

“dBA” means the value of the overall sound level measured on the A scale established in accordance with the standards and methods prescribed in publication No. 179 (second edition, 1973) of the Central Office of the International Electrotechnical Commission;

“EN”: a European standard issued by the European Committee for Standardisation;

“enclosed area” means any area that is completely or partially enclosed, especially a reservoir, a silo, a vat, a hopper, a chamber, a vault, a tank, a sewer including a ditch and a temporary manure storage ditch, a pipe, a chimney, an access shaft, a truck or freight car tank, which has the following inherent conditions:

(1)  is not designed for human occupation, nor intended to be, but may occasionally be occupied for the performance of work;

(2)   access to which can only be had by a restricted entrance/exit;

(3)  can represent a risk for the health and safety of anyone who enters, owing to any one of the following factors:

(a)  its design, construction or location, except for the entrance/exit provided for in paragraph 2;

(b)  its atmosphere or insufficiency of natural or mechanical ventilation;

(c)  the materials or substances that it contains;

(d)  or other related hazards;

“friable material” means material that can be crumbled, pulverized or powdered by hand pressure when dry or that is crumbled, pulverized or powdered;

“heat stress” means heat unbalance in a worker caused by working in a hot environment;

“high-efficiency filter” means any filter capable of filtering particles 0.3 µm in size at an efficiency rate of at least 99.97%;

“hoisting apparatus” includes cranes, travelling cranes, gantries, winches, blocks, lift trucks, aerial basket lifting devices, work platform lifts, screw-type jacks, rack-type jacks and other similar apparatus but does not include elevators and dumb-waiters;

“impact noise” means any noise caused by mechanical shocks of solid bodies or by impulses repeated or not repeated at a frequency less than or equal to one per second;

“instructor” means a person in charge of the practical training and communication of theoretical knowledge required for the acquisition of occupational skills;

“linear dB” means the overall sound level measured in such a way that the various frequencies of the sound spectrum are in no way attenuated;

“NFPA” means the National Fire Protection Association;

“peak value” means the maximum level reached by a sound wave;

“predominant frequency band” means a frequency band whose level passes through a maximum that exceeds the arithmetic average of the levels of the preceding and following octave bands by 4 dB or more, and for the bands at the upper and lower limits of the sound spectrum, whose level exceeds that of the contiguous octave band by 5 dB;

“protective device” means a set of devices which when used alone or with a protector on machinery, eliminates dangers or reduces risks for the health, safety and physical well-being of workers;

“rated load” means the maximum load set by the manufacturer or an engineer;

“respirable asbestos fibre” means asbestos fibre having a diameter of less than 3 µm and a ratio of length to diameter of more than 3:1. Only fibres longer than 5 µm are taken into account for measurement purposes;

“respiratory zone” means the zone within a hemisphere having a 300 mm radius extending in front of the face and measured from the midpoint of an imaginary line joining the ears;

“SAE” means the Society of Automotive Engineers;

“safety factor” means the ratio between the rupture load and the working load;

“self-propelled vehicle” means a motor vehicle mounted on wheels, on tracks or on rails, used for the transportation of objects or materials, or for towing or pushing trailers or materials, with the exception of an all-terrain vehicle or an elevating or lifting device;

“stationary work station” means any work station in which a worker is required to perform his duties for at least 4 hours of his working day over a usual work surface of 30 m2 or less;

“washroom” means any room containing one or several toilets, urinals, sinks or showers to meet the sanitary needs of the workers of an establishment;

“work station” means any place, including a vehicle occupied by a worker to perform his work;

“ULC” means the Underwriters’ Laboratories of Canada or the Laboratoires des assureurs du Canada.

O.C. 885-2001, s. 1; O.C. 510-2008, s. 1.