1. (1) You must make sure that when you use a block and tackle, it is the correct size, including:

   1. (a) Correctly sized ball bearings or bushed blocks;
   2. (b) Safety hooks;
   3. (c) Eye-spliced rope;
   4. (d) A minimum breaking strength of five thousand pounds.

2. (2) You must make sure all rope used with a boatswain's chair has a minimum breaking strength of five thousand pounds, including rope used for:

   1. (a) Suspension;
   2. (b) Block and tackle;
   3. (c) Seat slings.

3. (3) You must make sure the ropes on boatswain's chair seat slings:

   1. (a) Are reeved through the four corner holes in the seat;
   2. (b) Cross each other on the underside of the seat;
   3. (c) Are rigged so the chair cannot slip out of a level position.

[Statutory Authority: RCW 49.17.010, 49.17.040, 49.17.050, 49.17.060, and chapter 49.17 RCW. WSR 14-09-095, § 296-878-19005, filed 4/22/14, effective 7/1/14. Statutory Authority: RCW 49.17.010, 49.17.040, 49.17.050, and 49.17.060. WSR 02-22-027, § 296-878-19005, filed 10/28/02, effective 1/1/03.]