Make sure horizontal lifelines used with personal fall arrest systems meet these requirements.

(1) You must equip single-point or two-point adjustable suspension scaffolds that use horizontal lifelines or structural members of the scaffold for fall protection with both of the following:
(a) Additional independent support lines that are equal in number and equivalent in strength to the suspension ropes;
(b) Automatic locking devices capable of stopping the scaffold from falling if one or both of the suspension ropes fail.
(2) You must make sure horizontal lifelines are secured to either:
(a) Two or more structural members of the scaffold; or
(b) Looped around both the suspension ropes and independent support lines above the hoist and brake attached to the end of the scaffold.
(3) You must make sure independent support lines and suspension ropes are not:
(a) Attached to each other or the same point on the scaffold;
(b) Attached to or use the same point of anchorage.
(4) You must make sure independent support lines and suspension ropes are not attached to either:
(a) A personal fall arrest system; or
(b) The same point on the scaffold as a personal fall arrest system.
(5) You must make sure, if a horizontal lifeline is used where it may become a vertical lifeline, that the device used to connect a lanyard to the horizontal lifeline is capable of locking in both directions on the lifeline.
[Statutory Authority: RCW 49.17.010, 49.17.040, 49.17.050. WSR 15-23-086, § 296-874-20062, filed 11/17/15, effective 12/18/15. Statutory Authority: RCW 49.17.010, 49.17.040, 49.17.050, 49.17.060. WSR 05-01-054, § 296-874-20062, filed 12/7/04, effective 3/1/05.]
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