O. Reg. 345/15: CONSTRUCTION PROJECTS

filed November 26, 2015 under Occupational Health and Safety Act, R.S.O. 1990, c. O.1

ontario regulation 345/15

made under the

Occupational Health and Safety Act

Made: November 25, 2015
Filed: November 26, 2015
Published on e-Laws: November 27, 2015
Printed in The Ontario Gazette: December 12, 2015

Amending O. Reg. 213/91

(CONSTRUCTION PROJECTS)

1. (1) The definition of “adequate” in subsection 1 (1) of Ontario Regulation 213/91 is amended by adding “plan” after “procedure”.

(2) The definition of “Building Code” in subsection 1 (1) of the Regulation is revoked.

(3) Subsection 1 (1) of the Regulation is amended by adding the following definition:

“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,

(d) is a digger derrick,

(e) is used for digging holes for posts, sonotubes, 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;

(4) The Table to subsection 1 (2) of the Regulation is revoked and the following substituted:

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

2. Subsection 6 (1) of the Regulation is amended by striking out “or” at the end of clause (g) and adding the following clause:

(g.1) the work is the construction, over frozen water, slush or wetlands, of an ice road for vehicles, machinery or equipment; or

3. Clause 23 (2) (b) of the Regulation is amended by striking out “DIN” and substituting “Deutsche Industrie Norm”.

4. Section 26 of the Regulation is amended by striking out “where a worker is exposed” in the portion before paragraph 1 and substituting “where a worker may be exposed”.

5. (1) Subsection 26.1 (2) of the Regulation is amended by striking out the portion before paragraph 1 and substituting the following:

(2) Despite subsection (1), if it is not practicable to install a guardrail system as that subsection requires, a worker shall be adequately protected by the highest ranked method that is practicable from the following ranking of fall protection methods:

. . . . .

(2) Paragraph 2 of subsection 26.1 (3) of the Regulation is revoked and the following substituted:

2. CAN/CSA-Z259.2.5-12: Fall Arresters and Vertical Lifelines.

6. Subsection 26.3 (1) of the Regulation is amended by striking out “and is exposed to a fall” in the portion before paragraph 1 and substituting “and may be exposed to a fall”.

7. Subsection 26.8 (1) of the Regulation is amended by striking out “ANSI Standard 10.11-1989, Personnel and Debris Nets for Construction and Demolition Operations” and substituting “ANSI/ASSE Standard A10.11-2010, Safety Requirements for Personnel and Debris Nets”.

8. (1) The Table to subsection 29.1 (5) of the Regulation is revoked and the following substituted:

TABLE

Item	Column 1 Minimum number of toilets	Column 2 Number of workers regularly employed at the project
1.	1	1-15
2.	2	16-30
3.	3	31-45
4.	4	46-60
5.	4, plus 1 additional toilet for each additional group of 15 or fewer workers	61 or more

(2) The Table to subsection 29.1 (7) of the Regulation is revoked and the following substituted:

TABLE

Item	Column 1 Minimum number of toilets	Column 2 Number of workers regularly employed at the project
1.	1	1-10
2.	2	11-20
3.	3	21-30
4.	4	31-40
5.	4, plus 1 additional toilet for each additional group of 15 or fewer workers	41 or more

9. Section 47 of the Regulation is revoked and the following substituted:

47. (1) This section does not apply to an internal combustion engine operated in a tunnel.

(2) No internal combustion engine shall be operated in an excavation or in a building or other enclosed structure unless there is an adequate supply of air for combustion and,

(a) the exhaust gases and fumes from the engine are adequately discharged directly outside the excavation, building or other enclosed structure to a point sufficiently remote to prevent the return of the gases and fumes; or

(b) there is adequate natural or mechanical ventilation to ensure that exhaust gases and fumes from the engine will not accumulate in the excavation, building or other enclosed structure.

(3) An excavation or a building or other enclosed structure in which an internal combustion engine is being operated shall be tested for airborne concentrations of carbon monoxide to ensure that the concentrations do not exceed the applicable limits as determined in accordance with section 4 of Regulation 833 of the Revised Regulations of Ontario, 1990 (Control of Exposure to Biological or Chemical Agents), made under the Act.

(4) The testing under subsection (3) shall be carried out by a competent worker in accordance with a written testing strategy, which shall be developed by the employer in consultation with the joint health and safety committee or a health and safety representative, if any.

(5) An internal combustion engine under this section shall be maintained and used in accordance with section 93.

10. Clause 53 (2) (b) of the Regulation is revoked and the following substituted:

(b) shall have an Underwriters’ Laboratories of Canada rating of at least 4A40BC.

11. (1) Subsection 67 (7) of the Regulation is amended by striking out “Subject to subsection (8)” at the beginning.

(2) Subsections 67 (8) and 67 (9) of the Regulation are revoked.

(3) Subsection 67 (10) of the Regulation is amended by striking out “On and after January 1, 2003,” at the beginning.

(4) Subsection 67 (12) of the Regulation is revoked and the following substituted:

(12) If a project is on a freeway and involves a mobile operation, an adequate number of crash trucks shall be adequately positioned between vehicular traffic and workers in order to adequately protect workers at the project.

12. Subsection 69.1 (3) of the Regulation is amended by striking out “On and after January 1, 2001,” at the beginning.

13. Sections 78 to 83 of the Regulation are revoked and the following substituted:

Ladders

78. In sections 78 to 84,

“extension trestle ladder” means a self-supporting portable ladder that is adjustable in length, consisting of a trestle ladder base, a vertically adjustable extension section and an adequate means of locking the ladder base and extension section together;

“platform ladder” means a self-supporting portable ladder that is not adjustable in length, where the highest standing level is a platform;

“single ladder” means a non-self-supporting portable ladder that is not adjustable in length and having only one section;

“step-ladder” means a self-supporting portable ladder that is not adjustable in length, having flat steps and a hinged back, and whose back section is either a single ladder or other supporting device, but does not include a step stool or platform ladder;

“step stool” means a self-supporting, portable, fixed or foldable ladder, not adjustable in length, and having,

(a) a height of 800 millimetres or less, excluding side rails, if any, above the top cap,

(b) flat steps, but no pail shelf, and

“top step” means the first step below the top cap of a step-ladder or, if there is no top cap, the first step below the top of the rails;

“trestle ladder” means a self-supporting portable ladder, non-adjustable in length, having two sections and hinged at the top so as to be able to form equal angles with the base.

79. A ladder shall be designed, constructed and maintained so as not to endanger a worker and shall be capable of withstanding all loads to which it may be subjected.

80. (1) A portable ladder at a project shall be manufactured and shall meet the design, performance, test and marking requirements of a Grade 1, Grade 1A or Grade 1AA ladder in the CSA Standard Z11-12, Portable Ladders.

(2) Despite subsection (1), a portable single ladder that is custom-built for use at a project may be used at the project if the ladder has,

(a) rungs spaced at 300 millimetres on centres;

(b) side rails at least 300 millimetres apart; and

(3) If a portable single ladder under subsection (2) is made of wood, the ladder shall also,

(a) be made of wood that is straight-grained and free of loose knots, sharp edges, splinters and shakes; and

(b) not be painted or coated with an opaque material that obscures the wood grain or interferes with inspections of the ladder.

(4) If the rungs of a ladder under subsection (3) are of the cleat type, the ladder shall also,

(a) have side rails that are not less than 400 millimetres but not more than 610 millimetres apart;

(b) have side rails that measure not less than,

(i) 38 millimetres by 89 millimetres if the ladder is 5.8 metres long or less, or

(ii) 38 millimetres by 140 millimetres if the ladder is more than 5.8 metres long;

(i) 19 millimetres by 64 millimetres if the side rails are 400 millimetres apart, or

(ii) 19 millimetres by 89 millimetres if the side rails are more than 400 millimetres apart; and

(d) have rungs braced by filler blocks that are at least 19 millimetres thick and located between the rungs.

(5) If a ladder under subsection (3) is a double-width wooden ladder, the ladder shall also,

(a) have three evenly-spaced rails that measure at least 38 millimetres by 140 millimetres;

(b) have rungs that,

(i) measure at least 38 millimetres by 89 millimetres,

(ii) extend the full width of the ladder, and

(iii) are braced by filler blocks that are at least 19 millimetres thick; and

81. (1) A portable ladder,

(a) shall be free from defective or loose rungs;

(b) shall be placed on a firm and level footing or support surface; and

(2) A non-self-supporting portable ladder shall be situated so that its base is not less than one-quarter, and not more than one-third, of the length of the ladder from a point directly below the top of the ladder and at the same level as the base of the ladder, if the ladder is not securely fastened to prevent its movement.

(3) A portable ladder or ladder section shall not be tied or fastened to another ladder or ladder section to increase its length unless the manufacturer’s instructions allow for this.

(4) A manufactured portable ladder shall be used in accordance with the manufacturer’s instructions.

82. (1) This section applies if a portable ladder is used as a means of access and egress between,

(a) levels of a building or structure;

(b) the ground or grade level to a building or structure; or

(2) The ladder,

(a) shall extend at the upper level at least 900 millimetres above the landing surface;

(b) shall, subject to subsection (3), have a clear space of at least 150 millimetres behind every rung;

(c) shall be located so that an adequate landing surface that is clear of obstructions is available at the top and bottom of the ladder for access and egress; and

(d) shall be secured at the top and bottom to prevent movement of the ladder.

(3) Clause (2) (b) does not apply to a ladder lying on an excavation wall that is sloped, as required by section 234.

83. (1) When a step-ladder is being used, its legs shall be fully spread open and its spreaders shall be locked.

(2) No worker shall stand or step on,

(a) the top cap, top step or pail shelf of a step-ladder;

(b) the top cap or top step of a combination ladder when it is used as a step-ladder;

(d) the top step of a trestle ladder.

14. (1) Clause 84 (1) (d) of the Regulation is amended by striking out “three metres” and substituting “five metres”.

(2) Subsection 84 (1) of the Regulation is amended by striking out “and” at the end of clause (e) and adding the following clauses:

(g) shall have an adequate landing surface that is clear of obstructions at the top and bottom of the ladder for access and egress;

(h) shall be free from defective or loose rungs; and

(i) shall not be used in an elevator shaft or a similar hoisting area when the shaft or area is being used for hoisting.

(3) Subsection 84 (2) of the Regulation is revoked and the following substituted:

(2) Clauses (1) (b), (c) and (d) do not apply to any access ladder on a tower, water tank, chimney or similar structure that has a safety device that will provide protection should a worker using the ladder fall.

15. (1) Subsection 96 (1) of the Regulation is amended by adding “or powered machine, tool or equipment” after “vehicle”.

(2) Subsection 96 (2) of the Regulation is amended by adding “or powered machine, tool or equipment” after “vehicle”.

16. Subsection 106 (1.3) of the Regulation is amended by striking out “On and after January 1, 2001,” at the beginning.

17. The Table to subsection 144 (6) of the Regulation is revoked and the following substituted:

TABLE

Item	Column 1 Type of elevating work platform	Column 2 National Standards of Canada standard
1.	Elevating Rolling Work Platform	CAN3-B354.1-M82
2.	Self-Propelled Elevating Work Platform	CAN3-B354.2-M82 and CAN3-B354.3-M82
3.	Boom-Type Elevating Work Platform	CAN3-B354.4-M82
4.	Vehicle-Mounted Aerial Device	CAN/CSA-C225-10

18. Section 148 of the Regulation is revoked and the following substituted:

148. (1) An elevating work platform,

(a) shall not be loaded in excess of its rated working load;

(b) shall be used and moved only in accordance with the manufacturer’s written instructions;

(d) shall not be moved unless all workers on it are protected from ejection by being attached to an adequate fixed support on the elevating work platform by a method of fall protection.

(2) Clause (1) (d) does not apply to a mast climbing work platform or a mast climbing transport platform if the platform has guardrails protecting all open sides of the platform where a worker is exposed to a hazard of falling 2.4 metres or more.

(3) An elevating work platform that is a boom type or a vehicle-mounted aerial device shall not be used unless all workers on it are protected from falling by being attached to an adequate fixed support on the elevating work platform by a method of fall protection.

19. The Regulation is amended by adding the following sections:

Rotary Foundation Drill Rigs

156.1 (1) Before the start of any drilling operation on a project with a rotary foundation drill rig,

(a) an inspection of the work area shall be conducted to identify,

(i) potential hazards, including utilities, services, obstructions, structures and soil conditions that may endanger a worker engaged in, or in the vicinity of, the drilling operation, and

(ii) buildings and structures adjacent to, or in the vicinity of, the drilling operation that may be affected by it;

(b) any hazards identified under subclause (a) (i) shall be removed if practicable;

(i) if practicable, they shall be disconnected or inactivated so as not to endanger workers engaged in, or in the vicinity of, the drilling operation, and

(ii) they shall be located and marked by signs; and

(d) a written report shall be prepared that indicates,

(i) all of the hazards identified under subclause (a) (i),

(ii) which hazards have not been removed, and

(iii) which hazards have been disconnected or inactivated.

(2) The constructor shall keep a copy of the report mentioned under clause (1) (d) at the project until the drilling operation is completed, and make the report available, upon request, to an inspector and an employer responsible for the drilling operation.

156.2 (1) Before a drilling operation begins, the employer responsible for it shall,

(a) develop written measures and procedures in accordance with subsection (2) to protect the health and safety of workers engaged in, or in the vicinity of, the drilling operation; and

(b) have a copy of these written measures and procedures provided to, and reviewed with, the workers engaged in the drilling operation.

(2) The written measures and procedures required under subsection (1) shall include, at a minimum, details of,

(a) the measures and procedures to be implemented to protect workers from all unremoved hazards;

(b) the procedures to be implemented for the assembly, erection, disassembly, alteration and operation of the drilling equipment;

(i) the drilling operation,

(ii) the staging, disassembly and alteration of the drilling equipment, and

(iii) the storage of any excavated soil and material;

(d) the procedures to be implemented for removing excavated soil and material;

(e) the restricted access zone that has been designated around the drilling operation to restrict or prevent access by persons or equipment;

(f) the fall protection measures, in addition to those required under sections 26.1 to 26.9, to be implemented to prevent workers from falling into a drill hole or being engulfed by collapsing soil around a drill hole, while or after the hole is drilled; and

(g) the communications system to be used among the drill rig operator, the drill rig front-end worker and other workers in the restricted access zone, or a system of prearranged visual signals to be used among them if those signals are clearly visible and understood by them.

(3) Workers shall follow the written measures and procedures.

156.3 Sections 156.4 and 156.5 apply when a drilling operation at a project uses a rotary foundation drill rig that can exert a ground pressure of 200 kiloPascals or more under its tires, crawlers or outrigger pads in any configuration, including during its operational activities.

156.4 (1) Before a drilling operation described in section 156.3 begins, a professional engineer shall,

(a) design a supporting surface for the drill rig in accordance with good engineering practice to adequately support the drill rig during all drilling and drill rig set-up activities;

(b) designate and design a path of travel for the drill rig to use on the project to ensure the path of travel safely supports the drill rig; and

(2) The written report required under clause (1) (c) shall include, at a minimum, details of,

(a) the project and its location;

(b) the designs and specifications for the supporting surface and path of travel;

(c) any operating restrictions imposed by the drill rig manufacturer’s instructions, including the maximum safe ground slope for the drilling operation;

(d) the existing soil conditions, all associated hazards to workers’ health and safety and the precautions to be taken to protect workers from the hazards associated with the soil conditions;

(e) the minimum load-bearing capacity of the supporting surface required for each activity to be undertaken by the drill rig;

(f) the surface preparation required for the supporting surface and path of travel to safely support the drill rig during its operation and travel;

(g) the parts of the drill rig and the attachments of the drill rig that are permitted on the supporting surface;

(h) the precautions to be taken to ensure that the drilling operation and movement of the drill rig on the path of travel,

(i) do not damage or affect the stability of any building, structure, property or public way adjacent to, or in the vicinity of, the drilling operation, and

(ii) do not endanger a person using any building, structure, property or public way adjacent to, or in the vicinity of, the drilling operation;

(i) the frequency of inspections of the supporting surface and the path of travel of the drill rig, and the type of inspection required, to ensure they remain stable, do not deteriorate and continue to function as designed by the professional engineer, and any specific weather or other conditions that could affect the supporting surface or path of travel that would require additional inspections to be conducted; and

(j) the qualifications of the person who conducts the inspections of the supporting surface and path of travel and whether the person needs to be a professional engineer, a person under the direction of a professional engineer, a competent worker or another person with specified qualifications.

(3) The supporting surface and path of travel for the drill rig shall be prepared or constructed in accordance with the professional engineer’s written report.

(4) No deviation from the written report is permitted unless the deviation is approved, in advance and in a written report, by a professional engineer.

(5) The supporting surface and path of travel for the drill rig shall be inspected by a professional engineer after they are prepared or constructed and before the drill rig is assembled and erected on the supporting surface or uses the path of travel to confirm that they were prepared or constructed in accordance with the professional engineer’s report.

(6) The professional engineer shall prepare a written report of the results of the inspection under subsection (5).

(7) While a rotary foundation drill rig is in service at a drilling operation described in section 156.3, the employer responsible for the drilling operation shall ensure that,

(a) the supporting surface and path of travel are regularly inspected in accordance with, and by the person identified by, the report described in subsection (2); and

(b) a written report of the inspections and results are kept at the project and made available to an inspector upon request.

(8) The constructor and employer responsible for the drilling operation shall keep at the project a copy of all reports described in this section and make them available to an inspector upon request until the drilling operation is completed.

156.5 (1) Before a drilling operation described in section 156.3 begins, the employer responsible for it shall,

(a) develop a drilling procedure for the drill rig in accordance with subsection (2) and have it approved by a professional engineer; and

(b) have a copy of the drilling procedure provided to, and reviewed with, the workers engaged in the drilling operation.

(2) The drilling procedure shall be in writing and shall include, at a minimum, details of,

(a) the sequence of activities of the drilling operation to be followed including, if applicable, the delivery of concrete, rebar, steel piles and other materials related to the drilling operation;

(b) the procedures to be implemented for removing excavated soil and material from an auger or drilling tool and away from the supporting surface of the drill rig;

(d) the working area and designated path of travel to be used for any machinery or equipment used in the vicinity of the drilling operation so that the machinery or equipment does not affect the stability and integrity of the supporting surface of the drill rig;

(e) the measures and procedures to be implemented during the drilling operation to ensure that unremoved hazards do not endanger workers; and

(f) the areas that have been designated at, or in the vicinity of, the drilling operation where,

(i) only persons authorized by the employer are allowed to enter, and

(ii) no persons or equipment are allowed to enter.

(3) While a rotary foundation drill rig is in service at a drilling operation described in section 156.3, the employer responsible for the drilling operation shall ensure that,

(a) the drilling procedure described in subsection (2) is implemented; and

(b) the drilling procedure is followed by the workers engaged in, and in the vicinity of, the drilling operation.

156.6 (1) An employer shall ensure that a worker who operates a rotary foundation drill rig,

(a) is qualified in accordance with section 156.7;

(b) has completed a training program that meets the requirements of section 156.9, or is participating in a training program that meets such requirements and is being instructed on the operation of the drill rig;

(c) has demonstrated to the employer that the worker has adequate knowledge and proficiency in operating the drill rig to be used at the project; and

(d) is authorized by the employer to operate the drill rig at the project.

(2) The employer shall maintain a record of the training program described in section 156.9 provided to the worker that includes,

(a) the worker’s name and the training dates; and

(b) the name and signature of the training provider.

(3) The employer shall make the training record available to an inspector upon request.

156.7 (1) No worker shall operate a rotary foundation drill rig except in accordance with this section.

(2) The worker shall,

(a) have completed a training program that meets the requirements of section 156.9 and have written proof of training available at the project to an inspector upon request; or

(b) be participating in a training program that meets the requirements of section 156.9 and is being instructed on the operation of the drill rig.

(3) If a worker is operating a drill rig with an effective torque equal to or greater than 50 kilonewton metres, the worker shall have a certificate of qualification or written proof of training as required by section 156.8 available at the project to an inspector upon request.

156.8 (1) No worker shall operate a rotary foundation drill rig with an effective torque greater than 270 kilonewton metres unless the worker,

(a) holds a certificate of qualification issued under the Ontario College of Trades and Apprenticeship Act, 2009, that is not suspended, in the trade of hoisting engineer – mobile crane operator 1; or

(b) is an apprentice who is working pursuant to a training agreement registered under the Ontario College of Trades and Apprenticeship Act, 2009, that is not suspended, in the trade of hoisting engineer – mobile crane operator 1.

(2) No worker shall operate a rotary foundation drill rig with an effective torque greater than 190 kilonewton metres but less than or equal to 270 kilonewton metres unless the worker,

(3) No worker shall operate a rotary foundation drill rig with an effective torque equal to or greater than 50 kilonewton metres but less than or equal to 190 kilonewton metres unless the worker,

(c) has written proof that the worker has completed a training program on the operation of a 0-8 ton mobile crane that included instruction on,

(i) the relevant requirements of this Regulation,

(ii) how to use the manufacturer’s operating manuals,

(iii) minimum distances when approaching an overhead electrical conductor,

(iv) communications and signals,

(v) types of mobile cranes and their components, including wire and synthetic rope, hydraulics, rigging and rigging hardware,

(vi) pre-operational inspections and checks, and

(vii) safe work practices related to mobile cranes, including crane set-up, load charts, assembly and disassembly of manual boom extensions, basic crane operation and maintenance.

156.9 A training program for the operation of a rotary foundation drill rig shall include instruction on,

(a) the relevant requirements of this Regulation and the drill rig manufacturer’s operating manual;

(b) safe work practices;

(d) pre-operational inspections and checks;

(e) site assessment;

(f) drill rig set-up, securing and operation; and

(g) equipment maintenance.

20. Section 176 of the Regulation is amended by adding the following subsections:

(2) No alloy steel chain shall be annealed or welded.

(3) A chain used for hoisting shall,

(a) be labelled to indicate its load rating capacity;

(b) be repaired and reconditioned in accordance with the specifications of its manufacturer;

(c) after being repaired or reconditioned, be proof tested in accordance with the specifications of its manufacturer; and

(d) be visually inspected by a competent worker as frequently as recommended by its manufacturer and, in any case, at least once a week when the chain is in service.

21. Section 177 of the Regulation is revoked.

22. Subsection 181 (1) of the Regulation is amended by striking out “the Electrical and Utilities Safety Association of Ontario Incorporated and revised January, 2009” at the end and substituting “the Infrastructure Health and Safety Association and revised 2014”.

23. The Table to subsection 188 (2) of the Regulation is revoked and the following substituted:

TABLE

Item	Column 1 Nominal phase-to-phase voltage rating	Column 2 Minimum distance
1.	750 or more volts, but no more than 150,000 volts	3 m
2.	more than 150,000 volts, but no more than 250,000 volts	4.5 m
3.	more than 250,000 volts	6 m

24. Subsection 226 (4) of the Regulation is revoked and the following substituted:

(4) Type 3 soil is,

(a) previously excavated soil; or

(b) soil that is stiff to firm or compact to loose in consistency and has one or more of the following characteristics:

(i) It exhibits signs of surface cracking.

(ii) It exhibits signs of water seepage.

(iii) If it is dry, it may run easily into a well-defined conical pile.

(iv) It has a low degree of internal strength.

25. (1) Subsection 238 (2) of the Regulation is revoked and the following substituted:

(2) Timbering and shoring referred to in clause 235 (1) (a) for the walls of an excavation with a depth described in Column 1 of the Table to this section and located in a soil type described in Column 2 of the Table shall meet the corresponding specifications set out in Columns 3 to 8 of the Table.

(2) The Table to subsection 238 (5) of the Regulation is revoked and the following substituted:

TABLE
EXCAVATION SHORING AND TIMBERING

Item	Column 1 Excavation Depth	Column 2 Soil Type	Column 3 Sheathing	Column 4 Strut width where width of excavation at strut location is 1.8 to 3.6 metres	Column 5 Strut width where width of excavation at strut location is up to 1.8 metres	Column 6 Vertical strut spacing	Column 7 Horizontal strut spacing	Column 8 Wales
1.	3.0 m or less	1	50 mm × 200 mm at 1.2 m o/c	200 mm × 200 mm	150 mm × 150 mm	1.2 m	* 2.4 m	*200 mm × 200 mm
2.	3.0 m or less	2	50 mm × 200 mm at 1.2 m o/c	200 mm × 200 mm	150 mm × 150 mm	1.2 m	* 2.4 m	*200 mm × 200 mm
3.	3.0 m or less	3	50 mm × 200 mm at 10 mm gap	200 mm × 200 mm	200 mm × 200 mm	1.2 m	2.4 m	250 mm × 250 mm
4.	3.0 m or less	4	75 mm × 200 mm at 10 mm gap	250 mm × 250 mm	200 mm × 200 mm	1.2 m	2.4 m	300 mm × 300 mm
5.	Over 3.0 m to 4.5 m	1	50 mm × 200 mm with 10 mm gap	200 mm × 200 mm	150 mm × 150 mm	1.2 m	2.4 m	200 mm × 200 mm
6.	Over 3.0 m to 4.5 m	2	50 mm × 200 mm with 10 mm gap	200 mm × 200 mm	200 mm × 200 mm	1.2 m	2.4 m	250 mm × 250 mm
7.	Over 3.0 m to 4.5 m	3	50 mm × 200 mm with 10 mm gap	250 mm × 250 mm	250 mm × 250 mm	1.2 m	2.4 m	250 mm × 250 mm
8.	Over 3.0 m to 4.0 m	4	75 mm × 200 mm with 10 mm gap	300 mm × 300 mm	300 mm × 300 mm	1.2 m	2.4 m	300 mm × 300 mm
9.	Over 4.5 m to 6.0 m	1	50 mm × 200 mm with 10 mm gap	200 mm × 200 mm	200 mm × 200 mm	1.2 m	2.4 m	200 mm × 200 mm
10.	Over 4.5 m to 6.0 m	2	50 mm × 200 mm with 10 mm gap	250 mm × 250 mm	250 mm × 250 mm	1.2 m	2.4 m	250 mm × 250 mm
11.	Over 4.5 m to 6.0 m	3	50 mm × 200 mm with 10 mm gap	300 mm × 300 mm	300 mm × 300 mm	1.2 m	2.4 m	300 mm × 300 mm

*Note: For excavations to 3 m deep in soil types 1 and 2, the wales can be omitted if the struts are used at 1.2 m horizontal spacings.

26. Subsection 250 (2) of the Regulation is revoked and the following substituted:

(2) A fire suppression system shall include a dry chemical fire extinguisher with an Underwriters’ Laboratories of Canada rating of at least 4A40BC.

27. Subsection 273 (4) of the Regulation is revoked and the following substituted:

(4) A signal set out in Column 1 of the Table shall be used to communicate the meaning set out opposite to it in Column 2 between a hoist operator, the top or bottom of a shaft and all landings in the shaft:

TABLE

Item	Column 1 Code of signals	Column 2 Meaning
1.	Where the conveyance is in motion – 1 signal	STOP
2.	Where the conveyance is stationary – 1 signal	HOIST
3.	Where the conveyance is stationary – 2 signals together	LOWER
4.	Where the conveyance is stationary – 3 signals together (to be given before any person enters the conveyance)	Person will be on conveyance. OPERATE CAREFULLY.

28. Subsection 286 (3) of the Regulation is amended by striking out “at least 750 cm by 750 cm” at the end and substituting “at least 750 mm by 750 mm”.

29. Subsection 341 (3) of the Regulation is revoked and the following substituted:

(3) A signal set out in Column 1 of the Table shall be used to communicate the meaning set out opposite to it in Column 2 between a work chamber, an air lock and the lock tender’s work position.

TABLE

Item	Column 1 Code of signals	Column 2 Meaning
1.	1 signal	When no people are in the air lock, MATERIAL IS COMING OUT.
2.	2 signals	When people are in the air lock, STOP COMPRESSING.
3.	3 signals	PEOPLE ARE COMING OUT OF THE AIR LOCK.

30. (1) Subject to subsection (2), this Regulation comes into force on January 1, 2016.

(2) Subsection 5 (2) and sections 9, 13, 17, 19 and 20 of this Regulation come into force on July 1, 2016.

O. Reg. 345/15: CONSTRUCTION PROJECTS

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