Wash. Admin. Code § 16-439-220
Statutory Authority: Chapter 15.17 RCW, RCW 15.17.030, and chapter 34.05 RCW. 09-01-095, § 16-439-220, filed 12/16/08, effective 1/16/09; Order 1033, Regulation 2, filed 10/10/66, effective 11/10/66; Order 930, Regulation 2, filed 8/6/63; Emergency Order 922, filed 6/7/63.