1. (1) In this Regulation, “adequate”, in relation to a procedure, plan, material, device, object or thing, means, (a) sufficient for both its intended and its actual use, and (b) sufficient to protect a worker from occupational illness or occupational injury, and “adequately” has a corresponding meaning; (“adéquat”, “adéquatement”) “allowable unit stress”, in relation to a material, means, (a) the allowable unit stress assigned to a material by the standards required under the Building Code, or (b) if no allowable unit stress is assigned under clause (a), the allowable unit stress for the material as determined by an engineer in accordance with good engineering practice; (“taux de contrainte admissible”) “approved”, in relation to a form, means approved by the Minister; (“approuvé”) “blocker truck” means a truck that weighs at least 6,800 kilograms and has four-way flashers and a mounted flashing arrowboard sign; (“camion-barrière”) “boom” means the projecting part of a backhoe, shovel, crane or similar lifting device from which a load is likely to be supported; (“flèche”) “caisson” means, (a) a casing below ground or water level whether or not it is designed to contain air at a pressure greater than atmospheric pressure, (b) an excavation, including a waterwell but not a well within the meaning of the Oil, Gas and Salt Resources Act, drilled by an auger and into which a person may enter; (“caisson”) “cofferdam” means a structure constructed entirely or partially below water level or below the level of the groundwater table and intended to provide a work place that is free of water; (“batardeau”) “competent worker”, in relation to specific work, means a worker who, (a) is qualified because of knowledge, training and experience to perform the work, (b) is familiar with the Occupational Health and Safety Act and with the provisions of the regulations that apply to the work, and (c) has knowledge of all potential or actual danger to health or safety in the work; (“travailleur compétent”) “conduit” means a sewer, a water main, a duct or cable for a telegraphic, telephonic, television or electrical service, a pipe or duct for the transportation of any solid, liquid or gas or any combination of these items and includes a service connection made or intended to be made thereto; (“canalisation”) “crash truck” means a blocker truck that is equipped with a crash-attenuating device; (“camion d’intervention”) “critical weld” means, in relation to a suspended work platform, a weld the failure of which could result in the complete or partial collapse of the suspended work platform; (“soudure essentielle”) “excavation” means the hole that is left in the ground, as a result of removing material; (“excavation”) “excavation depth” means the vertical dimension from the highest point of the excavation wall to a point level with the lowest point of the excavation; (“profondeur d’excavation”) “excavation width” means the least horizontal dimension between the two opposite walls of the excavation; (“largeur d’excavation”) “fall arrest system” means an assembly of components joined together so that when the assembly is connected to a fixed support, it is capable of arresting a worker’s fall; (“dispositif antichute”) “fall restricting system” means a type of fall arrest system that has been designed to limit a worker’s fall to a specified distance; (“limiteur de chute”) “falsework”, in relation to a form or structure, means the structural supports and bracing used to support all or part of the form or structure; (“ouvrage provisoire”) “fixed support” means a permanent or temporary structure or a component of such a structure that can withstand all loads and forces the structure or component is intended to support or resist and is sufficient to protect a worker’s health and safety, and includes equipment or devices that are securely fastened to the structure or component; (“support fixe”) “flammable liquid” means a liquid with a flash point below 37.8 degrees celsius and a vapour pressure not exceeding 275 kilopascals absolute at 37.8 degrees celsius; (“liquide inflammable”) “form” means the mould into which concrete or another material is to be placed; (“élément de coffrage”) “formwork” means a system of forms connected together; (“coffrage”) “freeway” means a controlled-access highway that has a continuous dividing median and a normal posted speed limit of 90 kilometres per hour or more; (“autoroute”) “full body harness” means a device that can arrest an accidental vertical or near vertical fall of a worker and which can guide and distribute the impact forces of the fall by means of leg and shoulder strap supports and an upper dorsal suspension assembly which, after the arrest, will not by itself permit the release or further lowering of the worker; (“harnais de sécurité”) “generic installation drawing” means a drawing and related documentation, if any, that, (a) identifies components, configurations and load limitations of a suspended work platform system or powered boatswain’s chair, (b) is intended to be used at any location where all of the requirements in the drawing and documentation are satisfied, and (c) bears the seal and signature of an engineer confirming that a suspended work platform system or boatswain’s chair installed in accordance with the drawing would be in compliance with the requirements of this Regulation; (“dessin d’installation générique”) “guardrail system” means an assembly of components joined together to provide a barrier to prevent a worker from falling from the edge of a surface; (“garde-corps”) “highway” means a common and public highway, street, avenue, parkway, driveway, square, place, bridge, viaduct or trestle, any part of which is intended for or used by the general public for the passage of vehicles; (“voie publique”) “longitudinal buffer area” means the area of a project between the end of a lane closure taper and the start of a work area; (“zone tampon longitudinale”) “magazine” means a place in which explosives are stored or kept, whether above or below ground; (“dépôt d’explosifs”) “multi-point suspended work platform” means a suspended work platform more than 750 millimetres in width or a system of suspended work platforms in which any one platform is more than 750 millimetres in width that is supported from an overhead fixed support system by at least three primary load-carrying means of suspension to maintain the stability of the work platform or system of work platforms; (“plateforme de travail suspendue multipoint”) “non-destructive test” means one of the following methods of testing or examining a material, component or part to evaluate its condition without subjecting it to physical distortion, damage or destruction: 1. Eddy current testing. 2. Magnetic particle testing. 3. Liquid penetrant testing. 4. Radiographic testing. 5. Ultrasonic testing; (“essai non destructif”) “public way” means a highway or other street, avenue, parkway, driveway, square, place, bridge, viaduct, or other open space to which the public has access, as of right or by expressed or implied invitation; (“passage public”) “rated platform capacity” means the combined weight of occupants, tools, equipment and other material that the manufacturer has indicated can be safely carried by a suspended work platform, work platform module or boatswain’s chair; (“capacité nominale de la plateforme”) “roadway” means the travelled portion of a highway; (“chaussée”) “rotary foundation drill rig” means a drill rig used for boring holes in soil for the placement of foundations or earth retention structures but does not include a drill rig that, (a) is used for geotechnical sampling, (b) is used for drilling water, oil or gas wells, (c) is a rock drill or a diamond drill, (d) is a digger derrick, (e) is used for digging holes for posts, concrete forming tubes, poles or light standards, (f) is a pile driver without an auger, (g) is a horizontal boring machine, or (h) is a tunnel boring machine; (“foreuse rotative pour fondations”) “safety belt” means a belt worn around the waist of a worker and all the fittings for the belt appropriate for the use being made of it; (“ceinture de sécurité”) “safety factor” means the ratio of the failure load to the specified load or rated load; (“coefficient de sécurité”) “safety net” means a safety net that complies with section 26.8, and is located and supported in such a way that it arrests the fall of a worker who may fall into it without endangering the worker; (“filet de sécurité”) Note: On January 1, 2024, subsection 1 (1) of the Regulation is amended by adding the following definition: (See: O. Reg. 241/23, s. 1 (1)) “self-erecting tower crane” means a tower crane that is capable of being erected without the use of ancillary equipment; (“grue à tour à montage autonome”) “service shaft” means a shaft by which people or materials are passed into or out of a tunnel under construction; (“puits de service”) “shaft” means an excavation with a longitudinal axis at an angle greater than 45 degrees from the horizontal that is used to pass people or materials into or out of a tunnel or that leads to a tunnel or that is used as an access to a boring or augering operation; (“puits”) “sheathing” means the members of shoring that are placed up against the walls of an excavation to directly resist the pressure exerted from the walls of the excavation; (“blindage”) “sign truck” means a vehicle that has, (a) four-way flashers and a mounted flashing arrowboard sign, or (b) a portable trailer with a mounted flashing arrowboard sign; (“camion de signalisation”) “site-specific installation drawing” means a drawing and related documentation, if any, that identifies components, configurations and load limitations of a suspended work platform system or powered boatswain’s chair for use at a specific site; (“dessin d’installation propre au site”) “strut” means a transverse member of shoring that directly resists pressure from a wale; (“étai”) “suitable”, in relation to a procedure, material, device, object or thing, means sufficient to protect a worker from damage to the worker’s body or health; (“convenable”) “suspended work platform system” means an access system comprising one or more overhead fixed supports, one or more suspension lines, hoisting devices, if any, and one or more work platforms that can be moved vertically, but it does not include a boatswain’s chair or a multi-point suspended work platform; (“système de plateformes de travail suspendues”) “tower crane” means a travelling, fixed or climbing mechanical device or structure that has, (a) a boom, a jib or both, (b) a power-driven drum and wire rope to raise, lower or move material, and (c) a vertical mast; (“grue à tour”) “travel restraint system” means an assembly of components capable of restricting a worker’s movement on a work surface and preventing the worker from reaching a location from which he or she could fall; (“limiteur de déplacement”) “traverse”, when used in relation to a multi-point suspended work platform, means to move the platform horizontally, in a controlled manner, along the building or structure to which it is attached; (“déplacement horizontal”) “trench” means an excavation where the excavation depth exceeds the excavation width; (“tranchée”) “tunnel” means a subterranean passage into which a person may enter that is made by excavating beneath the overburden; (“tunnel”) “underground”, in relation to work, means inside a shaft, tunnel or caisson; (“souterrain”) “vehicle” means a vehicle propelled by mechanical power and includes a trailer, a traction engine and a road-building machine; (“véhicule”) “wale” means a longitudinal member of the shoring that is placed against the sheathing to directly resist the pressure from the sheathing; (“raidisseur”) “work belt” means a belt that has a back support pad and a connecting hook at the front and that is capable of supporting a worker. (“ceinture de travail”) O. Reg. 213/91, s. 1 (1); O. Reg. 631/94, s. 1; O. Reg. 145/00, s. 1 (1-13); O. Reg. 85/04, s. 1; O. Reg. 628/05, s. 1; O. Reg. 345/15, s. 1 (1-3); O. Reg. 242/16, s. 1 (1), 2 (1-4); O. Reg. 142/17, s. 1; O. Reg. 375/22, s. 1, 5. (1.1) Every non-destructive test required by this Regulation shall be carried out and interpreted by a person who has been certified by Natural Resources Canada to the appropriate level in accordance with CAN/CGSB Standard 48.9712-2014, Non-destructive Testing – Qualification and Certification of Personnel. O. Reg. 242/16, s. 2 (5). Note: On January 1, 2024, subsection 1 (1.1) of the Regulation is revoked and the following substituted: (See: O. Reg. 241/23, s. 1 (2)) (1.1) Every non-destructive test required by this Regulation shall be carried out and interpreted by a person, (a) who has been certified by Natural Resources Canada to the appropriate level in accordance with the version of the CAN/CGSB Standard 48.9712-2014, Non-destructive Testing — Qualification and Certification of Personnel, as it may be amended from time to time, that was in effect at the time of certification; and (b) whose certification described in clause (a) is valid at the time the test is carried out and interpreted. O. Reg. 241/23, s. 1 (2). (2) In this Regulation, a short form listed in Column 1 of the Table to this subsection has the same meaning as the term set out opposite to it in Column 2. TABLE Item   Column 1   Short forms   Column 2   Corresponding terms 

  1.   ANSI   American National Standards Institute 

  2.   CSA   Canadian Standards Association 

  3.   CAN   National Standards of Canada O. Reg. 213/91, s. 1 (2); O. Reg. 145/00, s. 1 (4); O. Reg. 345/15, s. 1 (4).