Bearer

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.

Cleat

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.

Competent 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.

Coupler

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.

Failure

means load refusal, breakage, or separation of component parts. Load refusal is the point where the ultimate strength is exceeded.

Guardrail system

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.

Qualified

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.

Runner

means the lengthwise horizontal spacing or bracing member which may support the bearers.

Scaffold

means any temporary elevated platform (supported or suspended) and its supporting structure (including points of anchorage), used for supporting employees or materials or both.

Stilts

means a pair of poles or similar supports with raised footrests, used to permit walking above the ground or working surface.