(1) You must use a personal fall arrest system to protect employees on the following scaffolds:
(a) Boatswain's chair;
(b) Catenary scaffold;
(c) Float scaffold;
(d) Ladder jack scaffold;
(e) Needle beam scaffold.
(2) You must use a personal fall arrest system and a guardrail system to protect employees on:
(a) Single-point adjustable suspension scaffolds;
(b) Two-point adjustable suspension scaffolds.
(3) You must protect employees working on a self-contained adjustable scaffold that has the platform:
(a) Supported by the frame structure, using a guardrail system with a minimum two hundred pound toprail capacity.
(b) Suspended by ropes, using:
(i) A guardrail system with a minimum two hundred pound toprail capacity; and
(ii) A personal fall arrest system.
(4) You must protect employees on walkways located within a scaffold by using a guardrail system that meets all of the following:
(a) Has a minimum two hundred pound toprail capacity;
(b) Is installed within nine and one-half inches (24.1 cm) of the walkway;
(c) Is installed along at least one side of the walkway.
[Statutory Authority: RCW
49.17.010,
49.17.040,
49.17.050. WSR 15-23-086, § 296-874-20056, filed 11/17/15, effective 12/18/15. Statutory Authority: RCW
49.17.010,
49.17.040,
49.17.050,
49.17.060. WSR 07-17-026, § 296-874-20056, filed 8/7/07, effective 10/6/07; WSR 05-01-054, § 296-874-20056, filed 12/7/04, effective 3/1/05.]