You also requested clarification on when employees must tie off when a guardrail system is removed to facilitate hoisting operations.
Cable guardrail system osha.
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.
When guardrail systems are used at hoisting areas a chain gate or removable guardrail section shall be placed across the access opening between guardrail sections when hoisting operations are not taking place.
Osha 1910 29 b contains system requirements that employers must follow to ensure guardrail systems will protect workers from falling to lower levels.
1926 502 b 11 when guardrail systems are used at holes they shall be erected on all unprotected sides or edges of the hole.
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.
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.
Ladderway floor openings are specifically mentioned.
Construction sites with vertical drops of 6 feet or more may use a guardrail system instead of other osha approved safety measures.