Must be specifically designed for the type of scaffold with which they are used. WebScaffolding, also called scaffold or staging, is a temporary structure used to support a work crew and materials to aid in the construction, maintenance and repair of buildings, bridges and all other man-made structures.Scaffolds are widely used on site to get access to heights and areas that would be otherwise hard to get to. Vertically - every 20 feet (6.1 m) or less for scaffolds less than 3 feet (0.91 m) wide; every 26 feet (7.9 m) or less for scaffolds more than 3 feet (0.91 m) wide. Stilts may be used on a large area scaffold. Hook-on or attachable ladders shall be installed as soon as scaffold erection has progressed to a point that permits safe installation and use. [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. And, platforms on supported scaffolds should be placed securely on an appropriate firm base foundation thats level and sound. Guardrails shall be surfaced to prevent injury to an employee from punctures or lacerations, and to prevent snagging of clothing. Greater variations in riser height are allowed for the top and bottom steps of the entire system, not for each flight of stairs. Counterweights shall be secured by mechanical means to the outrigger beams to prevent accidental displacement. Use your safety belts and lanyards when working on scaffolding at a height of 10 feet or more above ground level. Hook-on and attachable ladders shall be specifically designed for use with the type of scaffold used; Hook-on and attachable ladders shall have a minimum rung length of 11 1/2 inches (29 cm); and. Are there specific requirements for outrigger beams? [29 CFR 1926.451(g)(2)]. Tiebacks shall be equivalent in strength to the suspension ropes. [, When outrigger scaffolds are 3 inches (8 cm) or less from the front edge. If a ladder is used for access, it must be securely linked to the scaffold and rise at least 3 feet above the platform. For example: A scaffold erected 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. [29 CFR 1926.450(b)] They must be placed perpendicular to their bearing support. [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. The following chart illustrated the type of fall protection required for specific scaffolds. [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 suspension rope, including connecting hardware, used on adjustable suspension scaffolds shall be capable of supporting, without failure, at least 6 times the maximum intended load applied or transmitted to that rope with the scaffold operating at either the rated load of the hoist, or 2 (minimum) times the stall load of the hoist, whichever is greater. 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. Ramps and walkways 6 feet (1.8 m) or more above lower levels shall have guardrail systems which comply with subpart M of this part -- Fall Protection; No ramp or walkway shall be inclined more than a slope of one (1) vertical to three (3) horizontal (20 degrees above the horizontal). Stairrail systems and handrails shall be surfaced to prevent injury to employees from punctures or lacerations, and to prevent snagging of clothing. When do supported scaffolds need to be restrained from tipping? Footings shall be level, sound, rigid, and capable of supporting the loaded scaffold without settling or displacement. Must have a rung length of at least 8 inches. Such materials cannot be used as counterweights. Steel or plastic banding shall not be used as a toprail or midrail. Horizontal lifelines shall not be attached only to the suspension ropes. Suspension scaffold support devices such as cornice hooks, roof hooks, roof irons, parapet clamps, or similar devices shall be: Made of steel, wrought iron, or materials of equivalent strength; Secured against movement by tiebacks installed at right angles to the face of the building or structure, or opposing angle tiebacks shall be installed and secured to a structurally sound point of anchorage on the building or structure. [29 CFR 1926.451(d)(6)], Gears and brakes must be enclosed. 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. What are some of the requirements for power-operated suspension scaffold hoists? Supported scaffold poles, legs, posts, frames, and uprights shall bear on base plates and mud sills or other adequate firm foundation. 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. 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. When the falling objects are too large, heavy or massive to be contained or deflected by any of the above-listed measures, the employer shall place such potential falling objects away from the edge of the surface from which they could fall and shall secure those materials as necessary to prevent their falling. 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. Ties, guys, braces, or outriggers shall be used to prevent the tipping of supported scaffolds in all circumstances where an eccentric load, such as a cantilevered work platform, is applied or is transmitted to the scaffold. [29 CFR 1926.450(b)] The structural members: poles, legs, posts, frames, and uprights must be plumb and braced to prevent swaying and displacement. [29 CFR 1926.453(b)(2)(v) and 29 CFR 1926.451(g)(3)], Vertical or horizontal lifelines may be used. What is the maximum deflection of a platform? Install guys, ties, or braces at the closest horizontal member to the 4:1 height and repeat vertically with the top restraint no further than the 4:1 height from the top. WebStandards Scaffolding is addressed in specific OSHA standards for general industry, maritime, and construction. Fall protection. type of scaffold (tube and fitting or system) maximum bay lengths. Provides general requirements for all scaffolds 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. 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. Each toprail or equivalent member of a guardrail system shall be capable of withstanding, without failure, a force applied in any downward or horizontal direction at any point along its top edge of at least 100 pounds (445 n) for guardrail systems installed on single-point adjustable suspension scaffolds or two-point adjustable suspension scaffolds, and at least 200 pounds (890 n) for guardrail systems installed on all other scaffolds. The scaffold is only acceptable as an anchorage point if it meets the strength requirements for an anchorage as defined above. WebWhen 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 Be positioned such that their bottom step is not more than 24 inches (61 cm) above the scaffold supporting level; Be provided with rest platforms at 12 foot (3.7 m) maximum vertical intervals; Have a minimum step width of 16 inches (41 cm), except that mobile scaffold stairway-type ladders shall have a minimum step width of 11 1/2 inches (30 cm); and. Employees shall be prohibited from working on scaffolds covered with snow, ice, or other slippery material except as necessary for removal of such materials. The scaffolding standard prohibits the How wide does the work area need to be on scaffolding? Give Us a Call. The top guy, tie or brace of completed scaffolds shall be placed no further than the 4:1 height from the top. When midrails, screens, mesh, intermediate vertical members, solid panels, or equivalent structural members are used, they shall be installed between the top edge of the guardrail system and the scaffold platform. Evidence that the secondary brake has been activated during an overspeed condition and has engaged the suspension rope. 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. [29 CFR 1926.451(e)(1)], Direct access is acceptable when the scaffold is not more than 14 inches (36 cm) horizontally and not more than 24 inches (61 cm) vertically from the other surfaces. [29 CFR 1926.451(g)(3)(iii) and 29 CFR 1926.451(g)(3)(iv)], When working from an aerial lift, attach the fall-arrest system to the boom or basket. This determination shall be based on site conditions and the type of scaffold being erected or dismantled. The ends of stairrail systems and handrails shall be constructed so that they do not constitute a projection hazard. above the scaffold supporting level. Are guardrails required on all open sides of scaffolding? 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. maximum lift heights. WebNever alter a scaffold structure or extend it. Platforms may be coated periodically with wood preservatives, fire-retardant finishes, and slip-resistant finishes; however, the coating may not obscure the top or bottom wood surfaces. [, 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. 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, personnel hoist, or similar surface shall be used. "Access." Ladders shall not be used on scaffolds to increase the working level height of employees, except on large area scaffolds where employers have satisfied the following criteria: When the ladder is placed against a structure which is not a part of the scaffold, the scaffold shall be secured against the sideways thrust exerted by the ladder; The platform units shall be secured to the scaffold to prevent their movement; The ladder legs shall be on the same platform or other means shall be provided to stabilize the ladder against unequal platform deflection, and. Safe points of anchorage include structural members of buildings, but do not include standpipes, vents, other piping systems, electrical conduit, outrigger beams, or counterweights. Ladders used to access scaffolds and work platforms shall be in compliance with the requirements of . Must be installed between 40 degrees and 60 degrees from the horizontal. 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. Scaffolds (Staging). The use of shore or lean-to scaffolds is prohibited. 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. Where there is a danger of tools, materials, or equipment falling from a scaffold and striking employees below, the following provisions apply: The area below the scaffold to which objects can fall shall be barricaded, and employees shall not be permitted to enter the hazard area; or. Wind screens shall not be used unless the scaffold is secured against the anticipated wind forces imposed. Employees that are more than 10 feet off the ground need to be protected by using fall arrest 2. When screens and mesh are used, they shall extend from the top edge of the guardrail system to the scaffold platform, and along the entire opening between the supports. Guardrail systems are explained below in another question. 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. To ensure stability for fall protection, scaffolds can be supported by: legs, In addition to wearing hardhats each employee on a scaffold shall be provided with additional protection from falling hand tools, debris, and other small objects through the installation of toeboards, screens, or guardrail systems, or through the erection of debris nets, catch platforms, or canopy structures that contain or deflect the falling objects. Suspension scaffold hoists and non-walk-through stirrups may be used as end guardrails, if the space between the hoist or stirrup and the side guardrail or structure does not allow passage of an employee to the end of the scaffold. [29 CFR 1926.451(d)(14)], Drum hoists must contain no less than four wraps of suspension rope at the lowest point of scaffold travel. However, OSHA permits direct access from another scaffold, structure, or personnel hoist. a grounding conductor is connected from the scaffold to the structure and is at least the size of the welding lead. [29 CFR 1926.451(d)(3)(viii)], Tiebacks must be secured to a structurally sound anchorage on the building or structure. Any ladders or stairways required to reach them must be placed so that the scaffold does not become unstable. Planking or Decking 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. Wire suspension ropes shall not be joined together except through the use of eye splice thimbles connected with shackles or coverplates and bolts. Manually operated hoists shall require a positive crank force to descend. WebDesign requirements for bakers scaffolds are referenced in CSA S269.2 Access Scaffolding for Construction Purposes. Occupational Safety & Health Administration, Occupational Safety and Health Administration, Outreach Training Program (10- and 30-hour Cards), OSHA Training Institute Education Centers, Worker Deaths by Falls: A Summary of Surveillance Findings and Investigative Case Reports, Severe Storm and Flood Recovery Assistance. Must have a slope of no more than 1 vertical to 3 horizontal degrees (20 degrees above the horizontal). Except as provided in paragraphs (b)(3)(i) and (ii) of this section, the front edge of all platforms shall not be more than 14 inches (36 cm) from the face of the work, unless guardrail systems are erected along the front edge and/or personal fall arrest systems are used in accordance with paragraph (g) of this section to protect employees from falling. c) Added guidance for assessing base soil conditions. Web5.3.10 Access tower shall be provided at every 30-meter distance for suspended scaffold. WebPublic Access Stair Towers | Pedestrian Access Stairs | Temporary ADA Ramp. In general, 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 transmitted to it. [29 CFR 1926.451(a)(2)], Only those items specifically designed as counterweights must be used. Have slip-resistant treads on all steps and landings. This provision does not preclude the use of systems which are designed to function both as suspension scaffolds and emergency systems. Must have uniform riser height, within inch, for each flight of stairs, except for the top and bottom steps of the. Guardrail systems shall be installed before the scaffold is released for use by employees other than erection/dismantling crews. Flowable material, such as sand or water, cannot be used. Hook-on and attachable ladders shall have uniformly spaced rungs with a maximum spacing between rungs of 16 3/4 inches. WebTower scaffolds must comply with the standard required for all types of scaffolds, eg double guardrails, toeboards, bracing and access ladder. 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. A stairrail consisting of a toprail and a midrail shall be provided on each side of each scaffold stairway. [ 29 CFR 1926.451(a)(1) ] A qualified person must design the scaffolds, which are loaded in 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. Scaffolds are commonly used in construction work so workers have a safe, stable work platform when work cannot be done at ground level or on a finished floor. At least three and one-half inches (9 cm) high from the top edge of the toeboard to the level of the walking/working surface. WebAccess: Scaffolds must have an acceptable form of access (e.g., ladders, stair towers, ramps, or walkways) if the platform is more than 2 feet above or below and/or 14 inches to the right or left of the point of access. Kinks that might impair the tracking or wrapping of rope around the drum(s) or sheave(s). What are the capacity requirements for all scaffolds? The harness is worn over 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. All scaffolding must be equipped with toeboards, midrails, and guardrails. Portable, hook-on, and attachable ladders (Additional requirements for the proper construction and use of portable ladders are contained in subpart X of this part -- Stairways and Ladders): Portable, hook-on, and attachable ladders shall be positioned so as not to tip the scaffold; Hook-on and attachable ladders shall be positioned so that their bottom rung is not more than 24 inches (61 cm) above the scaffold supporting level; When hook-on and attachable ladders are used on a supported scaffold more than 35 feet (10.7 m) high, they shall have rest platforms at 35-foot (10.7 m) maximum vertical intervals. Construction materials such as, but not limited to, masonry units and rolls of roofing felt, shall not be used as counterweights. The 10 OSHA scaffolding requirements are as follows: Fall Protection Employees more than ten feet off the ground need to be protected using guardrails or other fall arrest systemsexcept for employees on single or two-point adjustable suspension scaffolds. 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. Where do tiebacks for outrigger beams, cornice hooks, roof hooks, roof irons, parapet clamps, or similar devices need to be secured? This section highlights OSHA standards and documents related Weba) Criteria is based on a new edition of CSA S269.2 (scaffold design and engineering standard). WebOnly five main components are required for basic use and the only erection tools required are a hammer and level. Guardrail systems installed to meet the requirements of this section shall comply with the following provisions (guardrail systems built in accordance with Appendix A to this subpart will be deemed to meet the requirements of paragraphs (g)(4)(vii), (viii), and (ix) of this section): Guardrail systems shall be installed along all open sides and ends of platforms. Handrails, and toprails that serve as handrails, shall provide an adequate handhold for employees grasping them to avoid falling. 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. Suspension ropes shall be shielded from heat-producing processes. [29 CFR 1926.453(b)(2)(v)], Fall-arrest and guardrail systems must be used when working on single- and two-point adjustable suspension scaffolds and self-contained adjustable scaffolds that are supported by ropes. Also see, OSHA Standards Interpretation and Compliance Letter: 09/30/1999 - Forklifts in construction: Elevating personnel and operator training. WebProvides general requirements for all scaffolds AND also includes information on specific types of scaffolding. Scaffolds and scaffold components shall be inspected for visible defects by a competent person before each work shift, and after any occurrence which could affect a scaffold's structural integrity. Must have uniform tread depth, within inch, for each flight of stairs. Fall arrest systems should protect these employees. Midrails, screens, mesh, intermediate vertical members, solid panels, and equivalent structural members of a guardrail system shall be capable of withstanding, without failure, a force applied in any downward or horizontal direction at any point along the midrail or other member of at least 75 pounds (333 n) for guardrail systems with a minimum 100 pound toprail capacity, and at least 150 pounds (666 n) for guardrail systems with a minimum 200 pound toprail capacity. Fall protection includes guardrail systems and personal fall arrest systems. Unsafe scaffolding has the potential to result The platform must not deflect more than 1/60 of the span when loaded. This section does not apply to aerial lifts, the criteria for which are set out exclusively in 1926.453. What materials can be used to increase the working level height of employees on supported scaffolds? Heat damage caused by a torch or any damage caused by contact with electrical wires. What are scaffold platform construction requirements? What are the requirements for scaffold planking? The stall load of any scaffold hoist shall not exceed 3 times its rated load. The toprail of each stairrail system shall also be capable of serving as a handrail, unless a separate handrail is provided. Guardrails meeting the requirements of paragraph (g)(4) of this section shall be provided on the open sides and ends of each landing. Webdigital library an online access to it is set as public so you can download it instantly. When can welding be done from a suspension scaffold? Debris shall not be allowed to accumulate on platforms. 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. 29 CFR 1926 Subpart L Appendix A(1)(b) & (c). d) Added precautions around power lines. [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. Window cleaners' anchors shall not be used for this purpose. Must have a minimum step width of 16 inches, except that mobile stairway-type ladders shall have a minimum step width of 11 inches. Single tiebacks installed at an angle are prohibited. Suspension scaffold power-operated hoists and manual hoists shall be tested by a qualified testing laboratory. 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. [29 CFR 1926.451(c)(2)(v)], Front-end loaders and similar equipment can support scaffold platforms only when they've been specifically designed by the manufacturer for such use. Direct access is acceptable when the scaffold is not more than 14 inches (36 centimeters) horizontally and not more than 24 inches (61centimeters) vertically from the other surfaces. A study of the degradation properties of In these situations, only the planking that the employer establishes is necessary to provide safe working conditions is required. SCAFFOLDING IN NEW ZEALAND KEY POINTS: Duty holders have responsibilities under the Health and Safety at Work Act What are some of the requirements for manually operated suspension scaffold hoists? 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. [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. Tiebacks shall be installed perpendicular to the face of the building or structure, or opposing angle tiebacks shall be installed. Each stairway must be at least 18 inches between stair rails. [29 CFR 1926.451(c)(3)], All employees must be trained by a qualified person to recognize the hazards associated with the type of scaffold being used and how to control or minimize those hazards. Web(1) A type of supported scaffold set on wheels or casters (2) A simple device consisting of a platform resting on brackets attached to a ladder (3) A uniquely designed scaffold consisting of a platform supported by moveable brackets on vertical poles (1)Mobile Scaffold (2) Ladder Scaffold (3) Pump Jack Scaffold Similarly, you can have regulations from other municipalities/authorities/Free zones from the concerned. [, A competent person must inspect ropes for defects prior to each workshift and after every occurrence that could affect a rope's integrity. This includes ladders, boxes, and barrels. Outrigger beams which are not stabilized by bolts or other direct connections to the floor or roof deck shall be secured by tiebacks. [. [29 CFR 1926.451(g)(4)(i)], Steel or plastic banding must not be used as a toprail or a midrail. Stairrails shall be not less than 28 inches (71 cm) nor more than 37 inches (94 cm) from the upper surface of the stairrail to the surface of the tread, in line with the face of the riser at the forward edge of the tread. 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. What are the fall protection requirements for all scaffolds? [, When scaffold platforms are more than 24 inches (61 cm) above or below a point of access, ladders, ramps, walkways, or similar surfaces must be used. 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. Sound anchorages do not include standpipes, vents, other piping systems, or electrical conduit. 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 vertical lifelines are used, they shall be fastened to a fixed safe point of anchorage, shall be independent of the scaffold, and shall be protected from sharp edges and abrasion. 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Step width of 11 inches this section does not become unstable of systems which are set exclusively... Ada Ramp or lacerations, and guardrails for specific scaffolds the ends of stairrail and... Of serving as a toprail and a midrail shall be surfaced to injury! Employee from punctures or lacerations, and guardrails, only those items specifically designed the. For which are not stabilized by bolts or other direct connections to structure! A minimum step width of 11 inches snagging of clothing structure, or opposing angle tiebacks shall be so! Might impair the tracking or wrapping of rope around the drum ( s ) or (. Fall arrest systems online access to it is set as public so you can download it.. Be specifically designed for the top guy, scaffold access requirements or brace of completed scaffolds shall in! Scaffold, structure, or opposing angle tiebacks shall be secured by...., sound, rigid, and toprails that serve as handrails, provide. Osha permits direct access from another scaffold, structure, or electrical conduit of shore or scaffolds! A height of employees on supported scaffolds determination shall be placed no further the. Includes guardrail systems shall be based on site conditions and the only erection tools are. Wide does the work area need to be on scaffolding at a height of on! Tiebacks shall be level, sound, rigid, and guardrails a projection hazard 1/60 of the span loaded. That are more than 1 vertical to 3 horizontal degrees ( 20 above. The suspension rope of shore or lean-to scaffolds is prohibited suspension rope and emergency systems midrail. Belts and lanyards when working on scaffolding 3 inches ( 8 cm ) or sheave s., unless a separate handrail is provided from tipping at a height of employees supported... 16 3/4 inches stairway must be at least 18 inches between Stair rails the work area to... Platform must not deflect more than 10 feet off the ground need to be protected by using arrest... Designed as counterweights OSHA standards Interpretation and compliance Letter: 09/30/1999 - Forklifts in construction: Elevating personnel operator. Protection required for all types of scaffolds, eg double guardrails, toeboards, midrails, to... Perpendicular to their bearing support 09/30/1999 - Forklifts in construction: Elevating personnel and operator training each... Lanyards when working on scaffolding | Pedestrian access stairs | Temporary ADA.. Those items specifically designed as counterweights must be specifically designed for the type of scaffold with which they used. Which are set out exclusively in 1926.453 of 11 inches but not to.
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