Wash. Admin. Code § 296-800-23075
You must make sure when providing work clothes to employees that the clothing provided is dry if the clothing:
[Statutory Authority: RCW 49.17.010, 49.17.040, 49.17.050, and 49.17.060. WSR 18-22-116, § 296-800-23075, filed 11/6/18, effective 12/7/18; WSR 03-18-090, § 296-800-23075, filed 9/2/03, effective 11/1/03.]