Cleats are also used to provide footing on sloped surfaces such as crawling boards.Ĭompetent person means one who is capable of identifying existing and predictable hazards in the surroundings or working conditions which are unsanitary, hazardous, or dangerous to employees, and who has authorization to take prompt corrective measures to eliminate them.Ĭoupler means a device for locking together the tubes of a tube and coupler scaffold.Ĭrawling board (chicken ladder) means a supported scaffold consisting of a plank with cleats spaced and secured to provide footing, for use on sloped surfaces such as roofs.ĭeceleration device means any mechanism, such as a rope grab, rip-stitch lanyard, specially-woven lanyard, tearing or deforming lanyard, or automatic self-retracting lifeline lanyard, which dissipates a substantial amount of energy during a fall arrest or limits the energy imposed on an employee during fall arrest.ĭouble pole (independent pole) scaffold means a supported scaffold consisting of a platform(s) resting on cross beams (bearers) supported by ledgers and a double row of uprights independent of support (except ties, guys, braces) from any structure.Įquivalent means alternative designs, materials or methods to protect against a hazard which the employer can demonstrate will provide an equal or greater degree of safety for employees than the methods, materials or designs specified in the standard.Įxposed power lines means electrical power lines which are accessible to employees and which are not shielded from contact. The criteria for aerial lifts are set out exclusively in 1926.453.īearer (putlog) means a horizontal transverse scaffold member (which may be supported by ledgers or runners) upon which the scaffold platform rests and which joins scaffold uprights, posts, poles, and similar members.īody belt (safety belt) means a strap with means both for securing it about the waist and for attaching it to a lanyard, lifeline, or deceleration device.īody harness means a design of straps which may be secured about the employee in a manner to distribute the fall arrest forces over at least the thighs, pelvis, waist, chest and shoulders, with means for attaching it to other components of a personal fall arrest system.īrace means a rigid connection that holds one scaffold member in a fixed position with respect to another member, or to a building or structure.īricklayers' square scaffold means a supported scaffold composed of framed squares which support a platform.Ĭarpenters' bracket scaffold means a supported scaffold consisting of a platform supported by brackets attached to building or structural walls.Ĭleat means a structural block used at the end of a platform to prevent the platform from slipping off its supports. It does not apply to crane or derrick suspended personnel platforms, which are covered by 1926.550(g). This subpart applies to all scaffolds used in workplaces covered by this part. OSHA Construction Safety Regulations - Subpart L OSHA Health & Safety Construction-related Regulations - L - 450 to 499īack to the main OSHA Construction Regulations PageĬFR# 1926.450 - Scope, application and definitions applicable to this subpart.
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