You also requested clarification on when employees must tie off when a guardrail system is removed to facilitate hoisting operations.
Cable guardrail system osha.
For any area with a floor or wall opening such as a stairway or access hole a standard railing is required on the exposed side of the structure.
Guardrail systems safety net systems personal fall arrest systems positioning device systems and their components shall conform to the criteria in 1926 502 see appendix g to this subpart.
1926 502 b 11 when guardrail systems are used at holes they shall be erected on all unprotected sides or edges of the hole.
1910 29 b 1 the top edge height of top rails or equivalent guardrail system members are 42 inches 107 cm plus or minus 3 inches 8 cm above the walking working surface.
This responds to your june 1 1999 letter to the occupational safety and health administration osha requesting information on wire rope and crosby clips used around the perimeter of buildings as a guardrail.
The use of wire ropes as top rails and intermediate rails of guardrail systems used for perimeter protection or for guardrails used on scaffolding meeting the equivalent requirements of 29 cfr 1926 500 d 1 and 29 cfr 1926 451 a 5 is acceptable provided it meets the following guidelines.
1926 760 d 2 fall arrest system components shall be used in fall restraint systems and shall conform to the criteria in 1926 502 see appendix g.
Osha 1910 29 b contains system requirements that employers must follow to ensure guardrail systems will protect workers from falling to lower levels.