Wash. Admin. Code § 296-127-01398
For the purpose of the Washington state public works law, chapter 39.12 RCW, truck drivers drive various types of trucks, other than transit mixer and volumetric type trucks hauling concrete, used for the hauling of materials and equipment related to work covered under chapter 39.12 RCW.
The work of truck drivers includes, but is not limited to, truck driving to do the following:
[Statutory Authority: Chapter 39.12 RCW. WSR 16-19-074, § 296-127-01398, filed 9/20/16, effective 11/1/16.]