Wash. Admin. Code § 296-800-16055
(1) You must make sure employees wear appropriate protective helmets.
(a) Where employees are exposed to hazards that could cause a head injury. Examples of this type of hazard include:
(2) Head protection must comply with any of the following consensus standards:
(3) You must make sure employees working near exposed electrical conductors that could contact their head wear a protective helmet designed (that meet the above ANSI standards) to reduce electrical shock hazard.
Caps with metal buttons or metal visors must not be worn around electrical hazards.
(4) You must make sure employees working around machinery or in locations that present a hair-catching or fire hazard wear caps or head coverings that completely cover their hair.
(a) Employees must wear a hair net that controls all loose ends when:
(b) Employees must wear a hair covering of solid material when:
The employee is exposed to an ignition source and may run into an area containing category 1 or 2 flammable liquids, such as ether, benzene, or category 3 flammable liquids with a flashpoint below 100°F (37.8°C), or combustible atmospheres if their hair is on fire.
[Statutory Authority: RCW 49.17.010, 49.17.040, 49.17.050, and 49.17.060. WSR 20-03-154, § 296-800-16055, filed 1/21/20, effective 2/21/20; WSR 18-22-116, § 296-800-16055, filed 11/6/18, effective 12/7/18. Statutory Authority: RCW 49.17.010, 49.17.040, 49.17.050, 49.17.060 and 29 C.F.R. 1910 Subpart Z. WSR 14-07-086, § 296-800-16055, filed 3/18/14, effective 5/1/14. Statutory Authority: RCW 49.17.010, 49.17.040, 49.17.050, 49.17.060, and chapter 49.17 RCW. WSR 14-03-013, § 296-800-16055, filed 1/7/14, effective 2/10/14; WSR 10-09-088, § 296-800-16055, filed 4/20/10, effective 6/1/10. Statutory Authority: RCW 49.17.010, [49.17].040, and [49.17].050. WSR 01-11-038, § 296-800-16055, filed 5/9/01, effective 9/1/01.]