The end points of the cross bracing must be no more than 48 inches (1.3 meters) apart vertically. Cross bracing is not acceptable as an entire guardrail system but is acceptable for a toprail when the crossing point of the two braces is between 38 inches (0.9 meters) and 48 inches (1.3 meters) above the work platform and for midrails when between 20 inches (0.5 meters) and 30 inches (0.8 meters) above the work platform.Standard guardrails (e.g., handrail and midrail) and toeboards must be provided for all open sides of the scaffolding that are ten (10) feet or more above the surrounding surfaces.Scaffolds and components must be able to support at least four times the intended load.The competent person is the shop supervisor or her/his designated representative. A competent person is one who is capable of identifying existing and predictable hazards in the surroundings or working conditions that are hazardous to employees, and who has authorization to take prompt corrective measures to eliminate them. Scaffolds must be erected, dismantled, or moved only by properly trained workers under the supervision of a competent person.Scaffolding must not be placed on unstable objects, such as bricks or blocks. The footing of scaffolding must be sound and rigid, capable of supporting the weight.Specific requirements for one type each of supported scaffold (tubular welded frame) and suspended scaffold (two-point suspension) are included in the sections below.

Included here are general requirements for all scaffolds. There are many types of scaffolds, both supported and suspended.

In its simplest form, a scaffold is any temporary elevated or suspended work surface used to support workers and/or materials. Scaffolding is widely used during construction and renovation activities.

The scaffold