Wash. Admin. Code § 296-56-60111
(2) Employers must ensure that all protective helmets comply with any of the following consensus standards:
[Statutory Authority: RCW 49.17.010, 49.17.040, 49.17.050, 49.17.060, 70.54.480, and chapter 49.17 RCW. WSR 26-07-053, s 296-56-60111, filed 3/17/26, effective 4/20/26. Statutory Authority: RCW 49.17.010, 49.17.040, 49.17.050, 49.17.060. WSR 15-24-102, § 296-56-60111, filed 12/1/15, effective 1/5/16. Statutory Authority: RCW 49.17.010, 49.17.040, 49.17.050, 49.17.060, and chapter 49.17 RCW. WSR 14-03-013, § 296-56-60111, filed 1/7/14, effective 2/10/14; WSR 10-09-088, § 296-56-60111, filed 4/20/10, effective 6/1/10. Statutory Authority: RCW 49.17.010, [49.17].040, and [49.17].050. WSR 00-21-103, § 296-56-60111, filed 10/18/00, effective 2/1/01. Statutory Authority: RCW 49.17.040 and 49.17.050. WSR 86-03-064 (Order 86-02), § 296-56-60111, filed 1/17/86; WSR 85-01-022 (Order 84-24), § 296-56-60111, filed 12/11/84.]