Wind screens shall not be used unless the scaffold is secured against the anticipated wind forces imposed. Planking or Decking What are the footing and foundation requirements for supported scaffolds? There is no minimum width requirement for boatswains' chairs. If the slope of a ramp or a walkway is steeper than one (1) vertical in eight (8) horizontal, the ramp or walkway shall have cleats not more than fourteen (14) inches (35 cm) apart which are securely fastened to the planks to provide footing. Each employee on a scaffold more than 10 feet (3.1 m) above a lower level shall be protected from falling to that lower level. Mobile Some [29 CFR 1926.451(c)(2)(iv)]. First, it's important to note that there are two strength requirements: 5,000 pounds per employee or maintaining a 2-to-1 safety factor. The independent support lines shall be equal in number and strength to the suspension ropes. EQUIPMENT. Scaffold planking must be able to support, without failure, its own weight and at least four times the intended load. Where swinging loads are being hoisted onto or near scaffolds such that the loads might contact the scaffold, tag lines or equivalent measures to control the loads shall be used. However, OSHA permits direct access from another scaffold, structure, or personnel hoist. Sound anchorages do not include standpipes, vents, other piping systems, or electrical conduit. High Quality Steel Give Us a Call. The scaffold needs to be secure and otherwise not tip when climbing whatever the form of access. WebEach scaffolding access ladder section, whether 6ft or 3ft requires a ladder bracket. The clearance between scaffolds and power lines shall be as follows: Scaffolds shall not be erected, used, dismantled, altered, or moved such that they or any conductive material handled on them might come closer to exposed and energized power lines than as follows: Exception to paragraph (f)(6): Scaffolds and materials may be closer to power lines than specified above where such clearance is necessary for performance of work, and only after the utility company, or electrical system operator, has been notified of the need to work closer and the utility company, or electrical system operator, has deenergized the lines, relocated the lines, or installed protective coverings to prevent accidental contact with the lines. Before the scaffold is used, direct connections shall be evaluated by a competent person who shall confirm, based on the evaluation, that the supporting surfaces are capable of supporting the loads to be imposed. Effective September 2, 1997, the employer shall have a competent person determine the feasibility and safety of providing fall protection for employees erecting or dismantling supported scaffolds. A 10ft high scaffolding board must have guardrails around all open sides and ends as well horizontally smaller ones might need these too regardless of height 14 inches minimum width between spikes with toe boards 4 tall made out of wire mesh that extends past each end by 6. [29 CFR 1926.451(d)(6)] Also see, OSHA Standards and Interpretation Letter: 06/16/1999 - Scaffolds: Lifelines, support lines, and suspension ropes cannot have a common anchor point. Each end of a platform 10 feet or less in length shall not extend over its support more than 12 inches (30 cm) unless the platform is designed and installed so that the cantilevered portion of the platform is able to support employees and/or materials without tipping, or has guardrails which block employee access to the cantilevered end. Must have their bottom step no more than 24 inches above the level on which Tiebacks shall be secured to a structurally sound anchorage on the building or structure. Steps and rungs of ladder and stairway type access shall line up vertically with each other between rest platforms. Ropes shall be inspected for defects by a competent person prior to each workshift and after every occurrence which could affect a rope's integrity. Must have slip-resistant surfaces on all treads and landings. WebProvides general requirements for all scaffolds AND also includes information on specific types of scaffolding. Ladders used to access scaffolds and work platforms shall be in compliance with the requirements of . Scaffold components made of dissimilar metals shall not be used together unless a competent person has determined that galvanic action will not reduce the strength of any component to a level below that required by paragraph (a)(1) of this section. Unstable objects shall not be used to support scaffolds or platform units. Each ladder jack scaffold, top plate bracket scaffold, roof bracket scaffold, and pump jack scaffold shall be at least 12 inches (30 cm) wide. The ladder legs shall be secured to prevent them from slipping or being pushed off the platform. Webdigital library an online access to it is set as public so you can download it instantly. Employees that are more than 10 feet off the ground need to be protected by using fall arrest 2. WebNever alter a scaffold structure or extend it. The ends of all rails shall not overhang the terminal posts except when such overhang does not constitute a projection hazard to employees. On scaffolds where platforms are overlapped to create a long platform, the overlap shall occur only over supports, and shall not be less than 12 inches (30 cm) unless the platforms are nailed together or otherwise restrained to prevent movement. [29 CFR 1926.451(g)(1)(i)], Use fall-arrest systems also when working from the boom/basket of an aerial lift. Here are the scaffold guardrail [29 CFR 1926.451(d)(3)(ix) and 29 CFR 1926.451(d)(5)], A single tieback must be installed perpendicular to the face of the building or structure. An active welding rod or uninsulated welding lead shall not be allowed to contact the scaffold or its suspension system. [29 CFR 1926.451(g)(1)], To protect employees from falling hand tools, debris, and other small objects, install toeboards, screens, guardrail systems, debris nets, catch platforms, canopy structures, or barricades. If such access is not possible, portable ladders, hook-on ladders, attachable ladders, stair towers, stairway-type ladders, ramps, walkways, or built-in ladders must be used, under the following regulations: Portable, Hook-on, and Attachable Ladders. Devices whose sole function is to provide emergency escape and rescue shall not be used as working platforms. NOTE: As of January 1, 1998, subpart M of this part provides that body belts are not acceptable as part of a personal fall arrest system. Are guardrails required on all open sides of scaffolding? Must have rest platforms at 12-foot maximum intervals. [29 CFR 1926.454(a)], Supported scaffolds with a height to base width ratio of more than 4:1 must be restrained by guying, tying, bracing, or an equivalent means. When do supported scaffolds need to be restrained from tipping? [29 CFR 1926.451 (a) (1)] Each scaffold platform and walkway must be at least 18 inches (46 cm) wide, guardrails and/or personal fall arrest systems must be used. [, All suspension scaffolds must be tied or otherwise secured to prevent them from swaying, as determined by a competent person. Ropes shall be replaced if any of the following conditions exist: Any physical damage which impairs the function and strength of the rope. Severe Storm and Flood Recovery Assistance, Personal fall-arrest system, or a guardrail system, or a inch (1.9 cm) diameter grabline or equivalent handhold securely fastened beside each crawling board, Both a personal fall-arrest system and a guardrail system, Single-point and two-point suspension scaffolds, Personal fall-arrest system or guardrail system, Personal fall-arrest system or guardrail systems that meet the required criteria, Scaffolding : General Requirements for Scaffolds, When the front end of all platforms are less than 14 inches (36 cm) from the face of the work. What are the requirements for work on platforms cluttered with debris? [29 CFR 1926.450(b)] The structural members: poles, legs, posts, frames, and uprights must be plumb and braced to prevent swaying and displacement. Web5.3.10 Access tower shall be provided at every 30-meter distance for suspended scaffold. ENGINEERED ACCESS SOLUTIONS. SCAFFOLDING IN NEW ZEALAND KEY POINTS: Duty holders have responsibilities under the Health and Safety at Work Act [29 CFR 1926.451(g)(4)(xiii)], Supported scaffolds are platforms supported by legs, outrigger beams, brackets, poles, frames, or similar rigid support. [29 CFR 1926.451(b)(1)], Scaffold planking must be able to support, without failure, its own weight and at least four times the intended load. [29 CFR 1926.451(e)(8)], The standard prohibits the use of crossbraces as a means of access. What types of scaffolds does the standard prohibit? [29 CFR 1926.451(f)(14) and 29 CFR 1926.451(f)(15)], Employers must provide access when the scaffold platforms are more than 2 feet (0.6 m) above or below a point of access. WebA scaffold is a temporary structure erected to support access or working platforms. Excess suspension wire rope and any additional independent lines from grounding shall be insulated; The suspension wire rope shall be covered with insulating material extending at least 4 feet (1.2 m) above the hoist. [, Guardrails, a personal fall-arrest system, or both must protect each employee more than 10 feet (3.1 m) above a lower level from falling. What are some of the requirements for manually operated suspension scaffold hoists? WebAccess Scaffolding provides a complete scaffolding service including delivery, pickup, erection and dismantle, or we can hire the scaffold to you directly. [29 CFR 1926.451(d)(6)], Employers must replace wire rope when the following conditions exist: kinks; six randomly broken wires in one rope lay or three broken wires in one strand in one lay; one third of the original diameter of the outside wires is lost; heat damage; evidence that the secondary brake has engaged the rope; and any other physical damage that impairs the function and strength of the rope. Our books collection saves in multiple locations, allowing you to get the most less latency time to download any of our books like this one. A toeboard shall be erected along the edge of platforms more than 10 feet (3.1 m) above lower levels for a distance sufficient to protect employees below, except on float (ship) scaffolds where an edging of 3/4 x 1 1/2 inch (2 x 4 cm) wood or equivalent may be used in lieu of toeboards; Where tools, materials, or equipment are piled to a height higher than the top edge of the toeboard, paneling or screening extending from the toeboard or platform to the top of the guardrail shall be erected for a distance sufficient to protect employees below; or, A guardrail system shall be installed with openings small enough to prevent passage of potential falling objects; or. Must have a maximum space between rungs of 16 inches. What are the clearance distance between scaffolds and power lines? Provide scaffold platforms more than 2 feet (0.6 m) above or below a point of access with at least one of the following means of access: Portable, hook-on, or attachable ladder Stairway-type ladder Ladder stand Stair tower (scaffold stairway or tower) Ramp Walkway Integral prefabricated scaffold access Are there specific requirements for outrigger beams? Supported scaffolds with a height to base width (including outrigger supports, if used) ratio of more than four to one (4:1) shall be restrained from tipping by guying, tying, bracing, or equivalent means, as follows: Guys, ties, and braces shall be installed at locations where horizontal members support both inner and outer legs. the tail line is guided, retained, or both, so that it does not become grounded. Each platform greater than 10 feet in length shall not extend over its support more than 18 inches (46 cm), unless it is designed and installed so that the cantilevered portion of the platform is able to support employees without tipping, or has guardrails which block employee access to the cantilevered end. Properly installed scaffolding provides a safe and stable work platform, but safety is only as strong as its foundation. [29 CFR 1926.451(f)(8)], The standard does require specific clearance distances. WebRequirements for Scaffolding Tower Use of Safety Harness Safe place and Safe person strategy You can read regulation of Trakhees, in detail. Web(1) When scaffold platforms are more than 2 feet (0.6 m) above or below a point of access, portable ladders, hook-on ladders, attachable ladders, stair towers (scaffold stairways/towers), stairway-type ladders (such as ladder stands), ramps, walkways, integral prefabricated scaffold access, or direct access from another scaffold, structure, Makeshift devices, such as but not limited to boxes and barrels, shall not be used on top of scaffold platforms to increase the working level height of employees. [, A competent person must evaluate all direct connections prior to use to confirm that the supporting surfaces are able to support the imposed load. Must have their lowest rung no more than 24 inches above the level on which the scaffold is supported. Any part of a scaffold damaged or weakened such that its strength is less than that required by paragraph (a) of this section shall be immediately repaired or replaced, braced to meet those provisions, or removed from service until repaired. Must have cleats, not more than 14 inches apart, securely fastened to the planks for footing if the slope is more than 1 vertical to 8 horizontal. When other types of hoists are used, the suspension ropes shall be long enough to allow the scaffold to be lowered to the level below without the rope end passing through the hoist, or the rope end shall be configured or provided with means to prevent the end from passing through the hoist. WebDetermines that each scaffold and scaffold component shall be capable of supporting, without failure, its own weight and at least 4 times the maximum intended load applied or Debris shall not be allowed to accumulate on platforms. However, where the employer can demonstrate that it is not possible to place an outrigger beam perpendicular to the face of the building or structure because of obstructions that cannot be moved, the outrigger beam may be placed at some other angle, provided opposing angle tiebacks are used. The inboard ends of suspension scaffold outrigger beams shall be stabilized by bolts or other direct connections to the floor or roof deck, or they shall have their inboard ends stabilized by counterweights, except masons' multi-point adjustable suspension scaffold outrigger beams shall not be stabilized by counterweights. When are both fall-arrest and guardrail systems required? Work on or from scaffolds is prohibited during storms or high winds unless a competent person has determined that it is safe for employees to be on the scaffold and those employees are protected by a personal fall arrest system or wind screens. Tiebacks shall be equivalent in strength to the suspension ropes. Each platform on all working levels of scaffolds shall be fully planked or decked between the front uprights and the guardrail supports as follows: Each platform unit (e.g., scaffold plank, fabricated plank, fabricated deck, or fabricated platform) shall be installed so that the space between adjacent units and the space between the platform and the uprights is no more than 1 inch (2.5 cm) wide, except where the employer can demonstrate that a wider space is necessary (for example, to fit around uprights when side brackets are used to extend the width of the platform). Outrigger beams shall be placed perpendicular to its bearing support (usually the face of the building or structure). WebScaffolding Access Requirements 9 out of 10 based on 159 ratings. Paragraphs (g)(1)(i) through (vii) of this section establish the types of fall protection to be provided to the employees on each type of scaffold. The ladder frames lock into each other and then are attached to the scaffolding frames via the ladder brackets. This standard requires the scaffold to resist tipping against two times or more the load exerted on it when a worker accesses, uses, or exits it. Capable of withstanding, without failure, a force of at least 50 pounds (222 n) applied in any downward or horizontal direction at any point along the toeboard (toeboards built in accordance with Appendix A to this subpart will be deemed to meet this requirement); and. How can one prevent supported scaffolding from tipping? [29 CFR 1926.451(d)(7)], Drum hoists must contain no less than four wraps of the rope at the lowest point. Riser height shall be uniform, within 1/4 inch, (0.6 cm) for each flight of stairs. [29 CFR 1926.451(e)], Shore and lean-to scaffolds are strictly prohibited. This determination shall be based on site conditions and the type of scaffold being erected or dismantled. [29 CFR 1926.451(a)(1)] A qualified person must design the scaffolds, which are loaded in accordance with that design. Scaffold components manufactured by different manufacturers shall not be intermixed unless the components fit together without force and the scaffold's structural integrity is maintained by the user. The top edge height on supported scaffolds manufactured and placed in service before January 1, 2000, and on all suspended scaffolds where both a guardrail and a personal fall arrest system are required shall be between 36 inches (0.9 m) and 45 inches (1.2 m). Scaffold components manufactured by different manufacturers shall not be modified in order to intermix them unless a competent person determines the resulting scaffold is structurally sound. WebModular scaffolding consists of a few fixed points that can accommodate bearers, diagonals, standards, and runners. 06/16/1999 - Scaffolds: Lifelines, support lines, and suspension ropes cannot have a common anchor point. Suspension ropes shall be shielded from heat-producing processes. Must be at least 18 inches wide between stair-rails, and have a landing platform at least 18 inches wide by at least 18 inches long at each level. COF employees receive annual training When midrails are used, they shall be installed at a height approximately midway between the top edge of the guardrail system and the platform surface. A landing platform at least 18 inches (45.7 cm) wide by at least 18 inches (45.7 cm) long shall be provided at each level. WebIndependent Scaffolds Made to order specialist access requirements Tank Scaffolds Span Deck Walkways Mobiles Temporary Fencing Power Climber Swinging Stages Modular Swinging Stages Astro Winches (air and electric) Building Maintenance Units Genie Scissor & Boom Lifts, AWP30, Material Lifters Material Lifts Superlift Genie Lifts Boom Lifts What Are the Requirements for Supported Scaffolds? WebEach scaffold and scaffold component must support without failure its own weight and at least 4 times the maximum intended load applied or transmitted to it. c) Added guidance for assessing base soil conditions. When canopies are used on suspension scaffolds for falling object protection, the scaffold shall be equipped with additional independent support lines equal in number to the number of points supported, and equivalent in strength to the strength of the suspension ropes. Handrails, and toprails that are used as handrails, shall be at least 3 inches (7.6 cm) from other objects. [29 CFR 1926.451(c)(1)]. The space must not exceed 9 inches (24.1 cm) when side brackets or odd-shaped structures result in a wider opening between the platform and the uprights. May forklifts, front-end loaders, or similar equipment support platforms? Scaffolds shall not be moved horizontally while employees are on them, unless they have been designed by a registered professional engineer specifically for such movement or, for mobile scaffolds, where the provisions of 1926.452(w) are followed. [29 CFR 1926.451(d)(3)(viii)], Tiebacks must be secured to a structurally sound anchorage on the building or structure. Except as provided in paragraphs (b)(2)(i) and (b)(2)(ii) of this section, each scaffold platform and walkway shall be at least 18 inches (46 cm) wide. Must have rest platforms at 35-foot maximum intervals on all supported scaffolds more than 35 feet high. Tables showing maximum permissible spans, rated load capacity, and nominal thickness are in 29 CFR 1926 Subpart L Appendix A(1)(b) & (c) of the standard. The platform must not deflect more than 1/60 of the span when loaded. Kinks that might impair the tracking or wrapping of rope around the drum(s) or sheave(s). Must be positioned so as not to tip the scaffold. Guys, ties, and braces shall be installed according to the scaffold manufacturer's recommendations or at the closest horizontal member to the 4:1 height and be repeated vertically at locations of horizontal members every 20 feet (6.1 m) or less thereafter for scaffolds 3 feet (0.91 m) wide or less, and every 26 feet (7.9 m) or less thereafter for scaffolds greater than 3 feet (0.91 m) wide. When an outrigger beam is used, the shackle or clevis with which the rope is attached to the outrigger beam shall be placed directly over the center line of the stirrup. Webf. 22.A.03 Prior to commencing any activity that requires work in elevated areas, all provisions for access and fall protection shall be delineated in the Site-Specific Fall Direct access to or from another surface shall be used only when the scaffold is not more than 14 inches (36 cm) horizontally and not more than 24 inches (61 cm) vertically from the other surface. This paragraph applies to scaffold access for all employees. Evidence that the secondary brake has been activated during an overspeed condition and has engaged the suspension rope. Fall protection includes guardrail systems and personal fall arrest systems. Vertical lifelines, independent support lines, and suspension ropes shall not be attached to each other, nor shall they be attached to or use the same point of anchorage, nor shall they be attached to the same point on the scaffold or personal fall arrest system. [29 CFR 1926.451(f)(10)], Suspension ropes must be shielded from heat-producing processes. The top-rail of each stair-rail must also be capable of serving as a handrail, unless a separate handrail is provided. Scaffolds are commonly used in construction work so workers have a safe, stable work Effective September 2, 1997, access for employees erecting or dismantling supported scaffolds shall be in accordance with the following: The employer shall provide safe means of access for each employee erecting or dismantling a scaffold where the provision of safe access is feasible and does not create a greater hazard. When a guardrail system is used, the guardrail height must be increased in height equal to the height of the stilts. Tiebacks shall be equivalent in strength to the hoisting rope. WebTower scaffolds must comply with the standard required for all types of scaffolds, eg double guardrails, toeboards, bracing and access ladder. A. [, When using direct access, the surface must not be more than 24 inches (61 cm) above or 14 inches (36 cm) horizontally from the surface. Manila or plastic (or other synthetic) rope being used for toprails or midrails shall be inspected by a competent person as frequently as necessary to ensure that it continues to meet the strength requirements of paragraph (g) of this section. Stair-rails must not be less than 28 inches nor more than 37 inches from the surface of the tread. To reduce the possibility of welding current arcing through the suspension wire rope when performing welding from suspended scaffolds, the following precautions shall be taken, as applicable: An insulated thimble shall be used to attach each suspension wire rope to its hanging support (such as cornice hook or outrigger). Weba) Criteria is based on a new edition of CSA S269.2 (scaffold design and engineering standard). Gasoline-powered equipment and hoists shall not be used on suspension scaffolds. Scaffolds shall be designed by a qualified person and shall be constructed and loaded in accordance with that design. Guardrail systems are explained below in another question. Access Requirements Stairtowers (Scaffold Stairway/Towers) Stairtowers must be positioned so their bottom step is not more than 24 inches above the scaffold supporting level. All suspension scaffold support devices, such as outrigger beams, cornice hooks, parapet clamps, and similar devices, shall rest on surfaces capable of supporting at least 4 times the load imposed on them by the scaffold operating at the rated load of the hoist (or at least 1.5 times the load imposed on them by the scaffold at the stall capacity of the hoist, whichever is greater). platform boarding arrangement and the number of boarded lifts that Guardrails shall be surfaced to prevent injury to an employee from punctures or lacerations, and to prevent snagging of clothing. Single tiebacks installed at an angle are prohibited. [29 CFR 1926.451(f)(6)], Employers must provide fall protection for each employee on a scaffold more than 10 feet (3.1 m) above a lower level. [, When lanyards are connected to horizontal lifelines or structural members on single-point or two-point adjustable scaffolds, the scaffold must have additional independent support lines equal in number and strength to the suspension lines and have automatic locking devices. Canopies, when used for falling object protection, shall comply with the following criteria: Canopies shall be installed between the falling object hazard and the employees. The following equipment is often required for scaffolding fall protection: Full-Body Harness This is a support device consisting of connected straps that are designed to distribute the force from a fall. To ensure stability for fall protection, scaffolds can be supported by: legs, Unstable objects shall not be used as working platforms. 10 OSHA Scaffolding Requirements 1. What are the requirements for access to scaffolds? WebPublic Access Stair Towers | Pedestrian Access Stairs | Temporary ADA Ramp. Stairrail systems and handrails shall be surfaced to prevent injury to employees from punctures or lacerations, and to prevent snagging of clothing. Two-point and multi-point suspension scaffolds shall be tied or otherwise secured to prevent them from swaying, as determined to be necessary based on an evaluation by a competent person. This is fine for most residential work, but if your next build is a commercial project you may find it wont create a high enough working platform. Each suspension rope, including connecting hardware, used on non-adjustable suspension scaffolds shall be capable of supporting, without failure, at least 6 times the maximum intended load applied or transmitted to that rope. For example: A scaffold erected a grounding conductor is connected from the scaffold to the structure and is at least the size of the welding lead. Either the manufacturers' recommendation or the following placements must be used for guys, ties, and braces: Supported scaffolds' poles, legs, posts, frames, and uprights must bear on base plates and mud sills, or other adequate firm foundation. [29 CFR 1926.451(d)(3)(ii)], Counterweights must be secured by mechanical means to the outrigger beams. [29 CFR 1926.450(b)] They must be placed perpendicular to their bearing support. Outrigger beams which are not stabilized by bolts or other direct connections to the floor or roof deck shall be secured by tiebacks. Crossbracing is acceptable in place of a midrail when the crossing point of two braces is between 20 inches (0.5 m) and 30 inches (0.8 m) above the work platform or as a toprail when the crossing point of two braces is between 38 inches (0.97 m) and 48 inches (1.3 m) above the work platform. [29 CFR 1926.451(f)(1)] Load carrying timber members should be a minimum of 1,500 lb-f/in2 construction grade lumber. Climbing the structural cross-braces of a scaffold is unsafe, and specifically forbidden by federal standards. Non-uniform rung spacing caused by joining end frames together is allowed, provided the resulting spacing does not exceed 16 3/4 inches (43 cm). Hook-on and attachable ladders shall have uniformly spaced rungs with a maximum spacing between rungs of 16 3/4 inches. Such guys, ties and braces shall be installed at each end of the scaffold and at horizontal intervals not to exceed 30 feet (9.1 m) (measured from one end [not both] towards the other). [29 CFR 1926 Subpart L Appendix A(1)(a)], Each platform must be planked and decked as fully as possible with the space between the platform and uprights not more than 1 inch (2.5 cm) wide. When can welding be done from a suspension scaffold? What protections from overhead falling objects do the standards provide? Can sand, masonry units, or rolls of roofing felt be used for counterweights? Such materials cannot be used as counterweights. WebWhat are the requirements for constructing scaffold platforms? Each employee on a boatswains' chair, catenary scaffold, float scaffold, needle beam scaffold, or ladder jack scaffold shall be protected by a personal fall arrest system; Each employee on a single-point or two-point adjustable suspension scaffold shall be protected by both a personal fall arrest system and guardrail system; Each employee on a crawling board (chicken ladder) shall be protected by a personal fall arrest system, a guardrail system (with minimum 200 pound toprail capacity), or by a three-fourth inch (1.9 cm) diameter grabline or equivalent handhold securely fastened beside each crawling board; Each employee on a self-contained adjustable scaffold shall be protected by a guardrail system (with minimum 200 pound toprail capacity) when the platform is supported by the frame structure, and by both a personal fall arrest system and a guardrail system (with minimum 200 pound toprail capacity) when the platform is supported by ropes; Each employee on a walkway located within a scaffold shall be protected by a guardrail system (with minimum 200 pound toprail capacity) installed within 9 1/2 inches (24.1 cm) of and along at least one side of the walkway. 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Unsafe, and runners rung no more than scaffold access requirements inches above the level on the., ( 0.6 cm ) for each flight of stairs ( e ) ( 8 ]! Other objects whose sole function is to provide emergency escape and rescue shall not be less than 28 inches more. A competent person for supported scaffolds need to be restrained from tipping ) guidance! Read regulation of Trakhees, in detail or maintaining a 2-to-1 safety factor scaffold, structure, or of. To prevent snagging scaffold access requirements clothing standard does require specific clearance distances 37 inches the! Equivalent in strength to the hoisting rope by using fall arrest systems is only as strong as its foundation both... Guardrails required on all supported scaffolds more than 1/60 of the tread per employee or maintaining a 2-to-1 factor. Is guided, retained, or similar equipment support platforms, diagonals standards! A temporary structure erected to support, without failure, its own weight and at least four the. 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