3314.9.4 Supported Scaffolds at the Edge

Supported scaffolds located on a floor, working deck, or roof and located within a distance from the edge of the roof or an unenclosed perimeter that is equal to or less than 1.5 times the height of the scaffold shall:

1. Be positively anchored or tied-back, and with all wheels or rollers secured by rope, cable, or chocking at the wheels in order to prevent movement; and
2. Have all sides of the scaffold facing an unenclosed perimeter or the edge of a roof within a distance that is equal to or less than 1.5 times the height of the scaffold provided with guardrails and debris netting in accordance with Section 3314.8; or
3. Have all material and equipment susceptible to dislodgement, and not being actively held by a person, secured in a manner to prevent dislodgement by wind or accidental impact.

Exception: The above requirements shall not apply where vertical safety netting that meets the requirements of Section 3308.5, or an approved alternate system, extends to cover the full height and width of all unenclosed perimeters within a distance from the scaffold equal to or less than 1.5 times the height of the scaffold.