guardrails are always preferable to personal fall protection
A guardrail prevents falls from occurring,
thereby reducing the potential for a worker to be injured
if he or she is only protected by a personal fall arrest
system by itself.
practical, use standard guardrails with rigid
top and middle rails for all open sides of the
staging when the fall distance to a lower level
exceeds 5 feet [29 CFR Part 1915.71(j)(1)]. Where the use of guardrails is not possible, due to the structure of the vessel, fall protection must be used to protect workers [29 CFR Part 1915.71(j)(3)].
Standard guardrails are preferred.
Photo courtesy of OSHA.