You must carefully inspect blocks and falls before being used. You must ensure that blocks are of substantial construction and maintained in good condition while in use. You must ensure that blocks fit the sizes of ropes they carry and do not chafe or abrade the ropes running through them.
[Statutory Authority: RCW 49.17.010, 49.17.040, 49.17.050, and 49.17.060. WSR 15-24-100, § 296-24-29411, filed 12/1/15, effective 1/5/16; Order 73-5, § 296-24-29411, filed 5/9/73 and Order 73-4, § 296-24-29411, filed 5/7/73.]