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.
means a structural block used at the end of a platform to prevent the platform from slipping off its supports. Cleats are also used to provide footing on sloped surfaces such as crawling boards.
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.
means a device for locking together the tubes of a tube and coupler scaffold.
Fabricated (decking or planking)
means manufactured platforms made of wood (including laminated wood, and solid sawn wood planks), metal or other materials.
means load refusal, breakage, or separation of component parts. Load refusal is the point where the ultimate strength is exceeded.
means a vertical barrier, consisting of, but not limited to, top rails, mid-rails, and posts, erected to prevent employees from falling off a scaffold platform or walkway to lower levels.
Maximum intended working load
means the total load of all persons, equipment, tools, materials, transmitted loads, and other loads reasonably anticipated to be applied to a scaffold or scaffold component at any one time.
means one who, by possession of a recognized degree, certificate, or professional standing, or who by extensive knowledge, training, and experience, has successfully demonstrated his/her ability to solve or resolve problems related to the subject matter, the work, or the project.
means the lengthwise horizontal spacing or bracing member which may support the bearers.
means any temporary elevated platform (supported or suspended) and its supporting structure (including points of anchorage), used for supporting employees or materials or both.
means a pair of poles or similar supports with raised footrests, used to permit walking above the ground or working surface.