Source: https://www.worksafebc.com/ohsregulation/print-section?parentId=99F923AB17E74176AA6E466B3EABE14C
Timestamp: 2018-04-20 18:07:17
Document Index: 751303956

Matched Legal Cases: ['art 3', 'art 3', 'art 3', 'art 13', 'art 11', 'art 4', 'art 4', 'art 11', 'art 13', 'art 4']

20.1A Qualified contractor
20.2 Notice of project
20.2.1 Notice of project - hazardous substances
20.3 Coordination of multiple employer workplaces
20.4 Safe access
20.5 Temporary floors
20.6 Design loads
20.7 Fall protection [Repealed]
20.8 Floor and roof openings [Repealed]
20.9 Protection from falling materials
20.10 Chutes
20.11 Safety headgear [Repealed]
20.12 Glass panels
20.13 Thrust-out crane landing platforms
20.14 Temporary support
20.14.1 Fills
20.14.2 Stockpiles
20.14.3 Unstable face of a stockpile
20.15 Drawings and special procedures
20.16 Walkways
20.17 Specifications and plans
20.18 Supervision
20.19 Erection drawing information
20.20 Responsibility for design
20.21 Continuity of engineering
20.22 Equipment requirements
20.23 Concrete placing hazards
20.24 Flyform drawings
20.25 Flyform handling
20.26 Inspections
20.26.1 Definition
20.26.2 Application of regulation
20.26.3 Standards
20.27 Equipment identification
20.28 Manufacturer's, supplier's or integrator's manual
20.29 Inspection and maintenance records
20.30 Pre-use inspection
20.30.1 Design and construction
20.31 Controls
20.32 Hydraulic cylinders
20.33 Marking weight
20.34 Lifting a pump
20.35 Securing a pump
20.36 Emergency shutoff
20.37 Agitator guarding
20.38 Engine exhaust
20.39 Housekeeping
20.40 Outriggers
20.41 Use of placing boom [Repealed]
20.42 Pipe diameter and thickness
20.43 Pipe clamps
20.44 Delivery pipe
20.45 Restraining devices
20.46 Concrete pump lines
20.47 Equipment inspection
20.48 Repair and modification
20.48.1 Installation of mast
20.49 Boom and mast weight
20.50 Restriction on use [Repealed]
20.51 Compressed air cleaning [Repealed]
20.52 Operator's duties [Repealed]
20.53 Work near powerlines [Repealed]
20.54 Hopper signal device
20.55 Specifications and plans
20.56 Design requirements
20.57 Panel handling
20.58 Inspections
20.59 Brace removal
20.60 General requirements
20.61 Signalling devices and restricted areas
20.62 Strand measuring
20.63 Guarding during pre-stressing operations
20.64 Deflecting devices
20.65 Detensioning and strand cutting procedures
20.66 Strand vises and hydraulic devices
20.67 Hydraulic equipment
20.68 Platform width
20.69 Blowouts
20.70 Tendon handling
20.71 Securing jacks
20.72 Erection instructions
20.73 Fall protection[Repealed]
20.74 Crawl boards and ladders
20.75 Steep roof requirements
20.76 Chutes and hoists
20.77 Mechanical equipment
20.78 Work standards
20.79 Underground utility services
20.80 Removing nearby hazards
20.81 Sloping and shoring requirements
20.82 Timber shoring and grades
20.83 Safe shoring procedures
20.84 Manufactured shoring [Repealed]
20.85 Trench support structures
20.86 Spoil piles
20.87 Entry and exit
20.88 Guarding
20.89 Excavation crossings
20.90 Excavated materials
20.91 Use of skips or buckets
20.92 Scaling and trimming
20.93 Height limitations
20.94 Positioning equipment
20.95 Water accumulation
20.96 Definitions
20.97 Work from top down
20.98 Rappelling and work positioning systems
20.99 Rappelling ropes
20.100 Anchors and other hardware
20.101 Harnesses
20.102 Suspended work platforms
20.103 Hoisting piles
20.104 Operator protection
20.105 Exhaust discharge
20.106 Chocking the hammer
20.107 Pile heads
20.108 Cracked hammer
20.109 Splicing
20.110 Walkway on discharge line
20.111 Structural integrity
20.112 Hazardous materials
20.113 Disconnecting utility services
20.114 Glass removal
20.115 Overloading floors [Repealed]
20.116 Protection from falling materials
20.117 Throwing material
20.118 Stabilizing walls
20.119 Dismantling buildings
20.120 Housekeeping
20.121 Stairways
20.122 Medical fitness
20.123 Compliance with standards
"stockpile"	means any soil or other loose material that is placed in an area for storage but that is not intended to function as fill;
If a person agrees with the owner to be the prime contractor as provided in section 118 of Part 3 of the Workers Compensation Act , then that person must be qualified.
(1) Subject to subsection (4), either the owner or the person engaged by the owner to be the prime contractor on a construction project must ensure that the Board receives, in writing, a notice of project that contains the information required by subsection (2) at least 24 hours before work on the construction project begins at the worksite if any of the following apply:
(a) the estimated total cost of labour and materials for the work exceeds $100 000;
(b) all or part of the construction project, project, whether a temporary or a permanent aspect of the project, is designed by a professional engineer except for pre-engineered or pre-manufactured building and structural components;
(b) a copy of the new information is posted at the worksite as soon as possible and is kept posted for the duration of the construction project.If a shaft, tunnel, underground working, caisson or cofferdam is to be constructed, the notice of project must confirm that drawings for all temporary and permanent ground support will be available on site for the duration of the project.
(1) Subject to subsections (3) and (6), if a construction project involves a work activity set out in subsection (2), all employers responsible for the work activity and either the owner or the person engaged by the owner to be the prime contractor on the construction project must ensure that the Board receives, in writing, a notice of project that contains the information required by subsection (4) at least 48 hours before the work activity begins at the worksite.
(f) if section 20.112 applies, a written report made under section 20.112(3)(e) and, if applicable, section 20.112(6)(e).
(1) If a construction project involves the work of 2 or more employers or their workers, each employer must notify the owner, or the person engaged by the owner to be the prime contractor, in advance of any undertaking likely to create a hazard for a worker of another employer.
(a) the owner, or if the owner engages another person to be the prime contractor, then that person must
(b) each employer must give the coordinator appointed under paragraph (a)(i) the name of a qualified person designated to be responsible for that employer's site health and safety activities.
(3) The duties of the qualified coordinator appointed under paragraph (2)(a)(i) include
Note: The information required by subsection (4) is a part of the overall health and safety program required by Part 3 of this Regulation (Rights and Responsibilities). See sections 118 and 119 of Part 3 of the Workers Compensation Act for the statutory requirements for coordination at multiple employer workplaces and the general duties of owners.
(1) Where practicable, suitable ladders, work platforms and scaffolds meeting the requirements of Part 13 (Ladders, Scaffold and Temporary Work Platforms) must be provided for and used by a worker for activities requiring positioning at elevations above a floor or grade.
(1) During the erection of a building or structure of skeleton construction, a temporary floor, decking or formwork must be installed at the main working level where work is being done.
(1) A temporary floor, decking, floor opening cover or formwork must be
20.7 Fall protection
Repealed. [B.C. Reg. 420/2004, effective January 1, 2005.]
20.8 Floor and roof openings
* See section 4.59 and Part 11 (Fall Protection) of the OHS Regulation.
(1) If falling material could endanger workers
(1) Chutes must be provided if the free fall of materials or debris being removed exceeds 6 m (20 ft).
20.11 Safety headgear
Glass panels installed during construction or alterations must be marked to clearly indicate their presence or effectively guarded at the time of installation.
(1) A professional engineer must certify each thrust-out crane landing platform and certify that the building structure can adequately support loads to be imposed by use of the platform.
(5) Repealed. [B.C. Reg. 420/2004, effective January 1, 2005.]
During the erection or dismantling of a structure or equipment the employer must ensure that all partially assembled structures or components are supported as necessary to safely withstand any loads likely to be imposed on them.
A fill must be planned, constructed, used and maintained so that no person working at the workplace is endangered by any failure or instability of the fill.
A stockpile must be planned, constructed, used and maintained so that no person working at the workplace is endangered by any instability of the stockpiled material.
The height of an unstable face of a stockpile must not exceed the maximum safe reach of the equipment being used to remove material from the stockpile.
During the construction of a bridge or a structure involving erection of skeleton structural members, documentation of all construction details that require engineering, including erection procedures, temporary bracing and falsework must be
A worker must not walk upon the surfaces of structural members that have shear connectors, dowels or other protrusions unless suitable walkways and runways are provided to eliminate the tripping hazard.
(1) The employer must ensure that a set of plans and specifications meeting the requirements of CSA Standard S269.1-1975, Falsework for Construction Purposes and CSA Standard CAN/CSA-S269.3-M92, Concrete Formwork is prepared for the formwork for each job and for all items of concrete work, the failure of which could cause injury.
(1) A qualified supervisor experienced in the construction of temporary support structures must supervise the erection and use of formwork and falsework.
* See also section 117 of the Workers Compensation Act .
(1) Erection drawings and supplementary instructions must clearly show all information necessary to accurately and safely assemble the concrete formwork, falsework and reshoring to the design requirements.
(1) A professional engineer must be responsible for all field designs, details and changes including the effect they may have on the original design.
The employer, or if the formwork affects workers of more than one employer, the owner or principal contractor, must ensure continuity of design, construction and inspection in the event of a change of professional engineers, or if the separate work of 2 or more professional engineers is involved.
(1) Equipment, materials and hardware which cannot be identified as meeting the standards specified in the professional engineer's drawings and specifications must not be used.
(1) Protruding ends of reinforcing steel which are hazardous to workers must be removed or effectively guarded.
(4) Placement of concrete or other loads must stop if any weakness, undue settlement or excess distortion of formwork of a type listed in section 20.17(3) occurs, and may only restart after the formwork has been repaired or strengthened as specified by a professional engineer.
Note: For the purposes of compliance with subsection (1) reinforcing steel may be bent back so as not to be a hazard to workers unless it presents a tripping hazard on a surface where workers would walk.
(1) Erection drawings must be detailed to show
(4) When all flyform panels have been assembled to form a continuous piece of concrete formwork, the concrete formwork and falsework must meet the requirements of section 20.17(1).
(1) The erection drawings and supplementary instructions for flyforms must show a step by step procedure for all phases of each cycle of assembly, flying, use, dismantling, and reuse of each flyform panel, including special procedures for non-typical floors.
(b) documents the inspection and the confirmation under paragraph (a), including the specific location at which the gang form is being reused and the date of inspection.
(5) The documents required by subsection (4)(b) must be available at the site for inspection by an officer.
In sections 20.26.2 to 20.54, "mast" means a mounting or support structure, other than a truck or trailer, for a concrete placing boom.
Sections 20.31, 20.32, 20.37, 20.38, 20.40 (3), 20.43 (4) and 20.45 do not apply in relation to concrete pumps or placing booms manufactured on or after August 1, 2012.
(1) The operation, inspection, testing and maintenance of a concrete pump or placing boom manufactured before August 1, 2012 must meet the requirements of CSA Standard Z151-09, Concrete pumps and placing booms , as set out in clauses 1.1 to 3 [definitions], 4.1.9.2.3, 4.1.18.2, 4.1.19.1, 4.2.1.1, 4.2.2, 5.1.1 to 5.3.4, 5.3.7 to 6.3.4 and 6.5.1 to 6.7.3, including any table, figure or annex referred to in those clauses.
(2) The design, manufacture, installation, operation, inspection, testing and maintenance of a concrete pump or placing boom manufactured on or after August 1, 2012 must meet the requirements of CSA Standard Z151-09, Concrete pumps and placing booms , as set out in clauses 1.1 to 3 [definitions], 4.1.1.2 to 5.3.4, 5.3.7 to 6.3.4 and 6.5.1 to 6.7.3, including any table, figure or annex referred to in those clauses.
(1) A mast must bear a legible identification plate specifying
(d) Repealed. [B.C. Reg. 188/2011, effective February 1, 2012.]
(2) Repealed. [B.C. Reg. 188/2011, effective February 1, 2012.]
(1) The manufacturer's, supplier's or integrator's manual for a concrete pump or placing boom, comprised of the documentation listed in clause 4.1.18.1 of CSA Standard Z151-09, Concrete pumps and placing booms , must be readily accessible to the operator and to maintenance personnel.
Records of inspection and maintenance as required by Part 4 (General Conditions) of this regulation must be made by the equipment operator and other persons inspecting and maintaining a concrete pump, placing boom or mast.
(1) The operator must inspect a concrete pump, placing boom and mast and test its safety and control devices before use on each shift and record the results of the inspection and tests in accordance with section 20.29.
A concrete placing boom, mast and other structural supports must be designed and constructed so that, when this equipment is operated in accordance with the manufacturer's intended use, stresses to the load bearing components do not exceed the components' structural limits and the equipment is capable of carrying out its design function with an adequate margin of safety.
Controls for a concrete pump, placing boom or mast must have their function clearly identified, and be located and maintained to allow safe operation of the concrete pump, placing boom and mast.
(1) Hydraulic cylinders on a concrete pump, placing boom and mast must have pressure relief valves to prevent cylinder and boom damage due to excess pressure.
A trailer or skid mounted concrete pump must have a permanent, legible notice stating the total weight of the unit.
A concrete pump may only be lifted using the lift points specified by the manufacturer or a professional engineer.
The trailer or skid on which a concrete pump is mounted must be secured to prevent movement during pumping.
Repealed. [B.C. Reg. 188/2011, effective February 1, 2012.]
(1) Concrete pump agitator guarding must be maintained to the pump manufacturer's specifications, with reasonable allowance for wear.
A concrete pump's engine exhaust system must be arranged to prevent exhaust exposure to the operator and hopper area.
The deck area of a concrete pump must be kept clean and free of unnecessary objects.
(1) Outriggers must be used in accordance with the concrete placing boom manufacturer's specifications.
20.41 Use of placing boom
(3) Repealed. [B.C. Reg. 188/2011, effective February 1, 2012.]
(1) Concrete must not be pumped through pipe with grooved ends, such as those for Victaulic-type couplers.
Delivery pipe between the concrete pump and the placing system must be supported and anchored to prevent movement and excessive loading on pipe clamps.
Restraining devices providing a safety factor of at least 5 must be used on attachments suspended from the placing boom or mast tip.
(1) Concrete pump discharge line couplings, if located where inadvertent disconnection could cause injury to workers, must be guarded.
(1) A mast must be inspected in accordance with good engineering practice at intervals not exceeding 12 months, repaired as necessary, and certified safe for use by a professional engineer, the manufacturer or the manufacturer's authorized agent.
(a) a reference to a "qualified person" in clauses 5.2.2.2.1 to 5.2.2.2.3 of CSA Standard Z151-09, Concrete pumps and placing booms , must be read as a reference to a person who is a professional engineer, and
(b) a reference to a "person qualified to the requirements of CSA W178.2 "or to a "representative authorized by the manufacturer" in clause 5.2.2.2.2 of CSA Standard Z151-09, Concrete pumps and placing booms , must be read as a reference to a person who is a professional engineer.
(1) Replacement parts used for repair of a concrete pump, placing boom or mast must meet or exceed the original manufacturer's specifications or be certified by a professional engineer.
The design and installation of a mast must be
The weight of each removable section of a concrete placing boom or mast must be permanently and legibly marked on the section.
20.50 Restriction on use
20.51 Compressed air cleaning
20.52 Operator's duties
20.53 Work near powerlines
If a concrete placing boom operator cannot see and monitor the hopper on the concrete pump from every location the operator must be at during the pumping activity, there must be a device at the hopper for the concrete delivery truck driver and other workers to signal the pump operator if there is a problem at the pump or hopper.
(1) Before a tilt-up project begins the employer must ensure that a comprehensive set of plans and specifications is prepared, detailing
(1) The plans and specifications for tilt-up panel erection and bracing must ensure that the load to be imposed on each lifting and bracing insert and anchor during panel lifting, moving and bracing will not exceed
(2) The minimum safety factor for cast-in lifting inserts is 2.5 except as provided in subsection 20.57(5); and for lift-points secured by drilled-in anchors, the minimum safety factor is 4.0.
(1) Tilt-up panel lifting and bracing operations must be done under the direct supervision of a qualified person.
(1) The professional engineer who certified the erection procedure or the engineer's designated representative must inspect the site prior to the start of tilt-up panel lifting to ensure that lift procedures and temporary bracing requirements are understood, and a follow-up inspection must occur on the last day of tilt-up panel lifting to ensure that temporary bracing requirements have been met.
The temporary bracing installed to support tilt-up panels must not be removed until the structural design engineer for the building provides a written statement that the tilt-up panels have been adequately connected into the overall structure and the temporary bracing is no longer needed.
(1) Concrete pre-stressing and post-tensioning operations must be done according to the specifications and instructions of a professional engineer, and a copy of such information must be available on site while the work is being done.
(1) Visual or audible signalling devices, or both must be provided and used in the area of tensioning operations to warn workers approaching the area.
Strand elongation and strand deflection must be measured by a means which does not expose the worker to a risk of injury.
(1) During pre-stressing operations workers must be protected by guards or other suitable devices at the tensioning ends and anchoring points to contain the flying strands and the strand vises in the event of strand failure.
Deflecting devices must be designed to prevent slipout and to allow backing off of strands from the deflected position.
(1) Written detensioning procedures must be prepared by a professional engineer and followed so that workers are not exposed to danger from equipment or strand failure or structural failure.
(1) Only hydraulic pressure hoses with self-seating couplings may be used, and care must be taken to ensure that end connections are not subjected to bending stresses at any time.
Where adequate clearance exists, the platform width at jacking locations must be at least 80 cm (32 in).
(1) Each blowout must be reported to the structural design engineer, investigated and logged.
If there is risk of injury from handling coiled post-tensioning tendons a suitable coil handling device must be used.
All jacks must be secured to suitable anchors before they are installed on a cable for tensioning, and must not be unsecured before they are removed from the cable, if a falling jack could endanger workers.
20.73 Fall protection
(1) Crawl boards or ladders used for roof work must be securely fastened over the ridge of the roof, or must be otherwise effectively anchored.
If a worker is employed on a roof having a slope ratio of 8 vertical to 12 horizontal or greater, the worker must use a personal fall protection system or personnel safety nets must be used, and 38 mm x 140 mm (2 in x 6 in nominal) toe-holds must be used if the roofing material allows for it.
Note: Exposed horizontal roof strapping may be used as toe-holds as long as it provides safe footing.
The roof edge about a chute, bitumen spout and material hoist must have guardrails meeting the requirements of Part 4 (General Conditions) or barriers of at least equivalent strength to at least 2 m (6.5 ft) on each side of such a work area.
Mechanical or powered equipment which has the potential to push or pull a worker over an unguarded edge must not be used unless operated according to procedures acceptable to the Board.
(a) the excavation is more than 6 m (20 ft) deep,
Trees, utility poles, rocks and similar objects adjacent to an area to be excavated must be removed or secured if they could endanger workers.
(1) Subject to section 20.78, before a worker enters any excavation over 1.2 m (4 ft) in depth or, while in the excavation, approaches closer to the side or bank than a distance equal to the depth of the excavation, the employer must ensure that the sides of the excavation are
(2) If the end of a trench over 1.2 m (4 ft) in depth is not adequately sloped, end shoring must be installed unless
(4) End shoring must be designed by a professional engineer if the end shoring waler length exceeds 1.8 m (6 ft).
(5) Shoring must extend from at least 30 cm (1 ft) above ground level to as close to the bottom of the trench as the material being installed will allow, but in no case more than 60 cm (2 ft) from the bottom.
(1) Timber shoring materials must be lumber graded Number 2 or better from the following species groups: Douglas fir-larch, hemlock-fir, spruce-pine-fir or coast-Sitka-spruce.
(2) All lumber must be graded to the National Lumber Grades Authority Standard Grading Rules for Canadian Lumber .
(1) Shoring materials must be installed from the top down and removed in reverse order.
20.84 Manufactured shoring
(1) Trench support structures, other than those designed by a professional engineer, must comply with Table 20-1 for the following relevant soil conditions:
A hard and solid
B likely to crack or crumble
C soft, sandy, filled or loose
up to 2.4 m (8 ft) 2
2.4 m to 3.7 m (8 ft to 12 ft) 3
3.7 m to 4.6 m (12 ft to 15 ft) 4
4.6 m to 6 m (15 ft to 20 ft) 5
If the average depth of a spoil pile which is adjacent to a supported excavation exceeds 60 cm (2 ft), the selection of the shoring or shielding must take into account the resulting increase in lateral soil pressure.
Note: Table 20-1 includes an allowance for 60 cm (2 ft) of spoil pile adjacent to the excavation. In such cases shoring or shielding will be deemed acceptable if rated adequate for a tabulated depth equal to the depth of the excavation plus the average depth of the spoil pile minus 60 cm (2 ft). For other systems consult the manufacturer's instructions.
(1) Safe means of entry and exit must be provided for an excavation a worker enters.
If an excavation is a hazard to workers, it must be effectively covered or guarded.
(1) Excavated material must be kept back a minimum distance of 60 cm (2 ft) from the edge of a trench excavation and 1.2 m (4 ft) from any other excavation.
If a skip or bucket is used to remove material from an excavation, horizontal shoring members must be shielded from dislodgment with vertical planking.
In pits, quarries and similar excavations the height of unstable faces must not exceed the maximum safe reach of the excavating equipment being used.
(1) Water must not be allowed to accumulate in an excavation if it might affect the stability of the excavation or might endanger workers.
Trench depth (m) Minimum dimen-
sions (mm)2 Max-
imum spacing (m) Minimum dimen-
imum vertical spacing (m) width of trench (m)
(mm)2 Maximum
ical Hori-
1.2-3 3 38 x 235 1.8 89 x 140 1.2 89 x 89 140 x 140 1.2 1.8
1.2-3 3 38 x 235 1.2 89 x 140 1.2 89 x 140 140 x 140 1.2 1.8
1.2-3 3 38 x 235 Close tight 140 x 191 1.2 140 x 140 140 x 191 1.2 1.8
4.6-6 64 x 235 Close tight 191 x 241 1.2 140 x 191 191 x 241 1.2 1.8
UPRIGHT WALERS CROSS BRACES
Trench depth (feet) Minimum dimensions (inches)2 Max-
imum spacing (feet) Minimum dimensions (inches)2 Max-
imum vertical spacing (feet) width of trench
Vertical Hori-
4-10 3 2 x 10 6 4 x 6 4 4 4 x 4 6 x 6 4 6
4-10 3 2 x 10 4 4 x 6 4 4 x 6 6 x 6 4 6
4-10 3 2 x 10 Close tight 6 x 8 4 6 x 6 6 x 8 4 6
15-20 3 x 10 Close tight 8 x 10 4 6 x 8 8 x 10 4 6
1 The dimensions shown are minimum and must be increased if necessary to meet job conditions.
2 The dimensions of members in millimetres are actual dimensions for surfaced dry materials. The dimensions in inches are the nominal values for surfaced dry materials.
3 Trenches less than 1.2 m (4 ft) deep must be shored when hazardous ground movement may be expected, as in ground subject to hydrostatic pressure or vibration.
4 Walers may be omitted in trenches not exceeding 2.4 m (8 ft) in depth provided that it has been confirmed that the soil is sufficiently hard and solid to safely permit waler deletion, and provided that the trench is not in proximity to previously excavated ground.
Case 1 (trench or bulk excavation) - maximum slope of excavated face, shown as line AB, in hard and solid soil is 3 horizontal to 4 vertical.
Case 2 (trench or bulk excavation), maximum height of vertical portion, shown as line AB is 1.2 metres (4 feet).
For Case 2 (trench or bulk excavation), the maximum permissible slope of the excavated face BC for the corresponding height of the lower vertical cut AB is as follows:
Height of line AB
Maximum slope of line BC
In sections 20.97 to 20.101
Rock scaling and like work must be undertaken from the top down, and any area into which material will fall must be kept clear of workers and equipment.
(1) A worker on a rock face or other steep slope must be protected from falling by a work positioning or rappelling system, or by a fall arrest system as required by Part 11 (Fall Protection).
A rappelling rope must
(a) be synthetic fibre rope with a breaking strength specified by the manufacturer of at least 27 kN (6,000 lbs) or be at least 16 mm (5/8 in) diameter wire-cored fibre rope,
(1) The ultimate load capacity of an anchor for a rappelling or fall protection line must be at least 22 kN (5,000 lbs).
(2) Each rappel line and fall arrest lifeline that is tied to a natural anchor such a suitable tree, stump or rock outcrop must also be tied to a second anchor of at least equal load capacity.
A sit harness with rope attachment below waist level may be used for work positioning or rappelling.
(1) Suspended work platforms such as gilley boards, small boats and buckets used to support workers must meet the requirements for suspended work platforms in Part 13 (Ladders, Scaffolds and Temporary Work Platforms).
(2) Despite section 13.27(5), a secondary hoisting line on a crane may be used to suspend workers on a work platform in a marine construction or pile driving operation if
When a pile is being hoisted in the leads only workers engaged in that operation may remain on the superstructure or in any area into which the pile could fall.
Each hoisting winch must have a suitable roof or shelter to protect the operator from falling objects, rigging failures and from the weather.
Any exhaust gases and any air or steam discharge must be controlled so as not to harm workers or interfere with the ability of the operator or other workers to see the operation as necessary to work safely.
(1) The pile driver operator must ensure that a suspended hammer is securely chocked when not in use.
(1) A head of a wooden pile must be
A drop hammer that is cracked must not be used.
Ropes used to support the hammer of a pile driver must not be spliced.
(1) A worker must not be on a floating discharge line unless a walkway has been provided.
(2) The walkway on a floating discharge line must be at least 50 cm (20 in) wide, have guardrails meeting the requirements of Part 4 (General Conditions), and be adequately illuminated during night use.
(1) If a structure is to be demolished in whole or in part, the structure and any adjoining structures, the integrity of which could be compromised by the demolition, must be supported to the extent and in a manner prescribed by a professional engineer.
(a) a report made under subsection (3)(e);
(b) a report made under subsection (6)(e);
Demolition must not proceed until all utility services which may endanger a worker have been disconnected in the manner required by the owner of the applicable utility service.
(1) If glass in a building or other structure could endanger workers it must be removed before other demolition commences.
20.115 Overloading floors
(1) If falling material could endanger a worker, the danger area must be guarded to prevent entry by workers or protected by adequate canopies.
If material is to be dropped or thrown from upper floors, the area into which the material will fall must be barricaded to prevent workers from entering the area and conspicuous warning signs must be displayed to advise of the danger.
If a dangerous or unstable wall is to be left standing, it must be adequately braced.
During the dismantling or renovation of a building or structure, materials of a size or weight which may endanger workers must not be loosened or allowed to fall, unless procedures are used that will adequately protect workers.
Material and debris must not be allowed to accumulate on floors or on the ground outside the building or structure if workers will be endangered.
Stairways, complete with handrails, must be left intact until access to the level they serve is no longer required.
Whenever work is carried out at an air pressure greater than 7 kPa (1 psi) above atmospheric pressure, the employer must ensure that the workers are medically examined by a physician knowledgeable in hyperbaric medicine, as required by the Board.
The employer must ensure that equipment and work processes carried out at an air pressure greater than 7 kPa (1 psi) above atmospheric pressure meet the requirements of CSA Standard CAN/CSA Z275.3-M86, Occupational Safety Code for Construction Work in Compressed Air .