Wash. Admin. Code § 308-18-220
It is the responsibility of each and every licensee to obtain a copy of and be knowledgeable of and keep current with the rules implementing chapter 18.170 RCW.
[Statutory Authority: RCW 18.170.180. WSR 91-22-112, § 308-18-220, filed 11/6/91, effective 12/7/91.]