The following requirements apply to work in water and steam spaces associated with boilers:
Wash. Admin. Code § 296-45-48530
Statutory Authority: RCW 49.17.010, [49.17].040, [49.17].050 and [49.17].060. 98-07-009, § 296-45-48530, filed 3/6/98, effective 5/6/98.