Wash. Admin. Code § 137-80-020
Statutory Authority: RCW 72.01.090. 07-12-073, § 137-80-020, filed 6/5/07, effective 7/6/07; 03-21-088, § 137-80-020, filed 10/17/03, effective 11/17/03. Statutory Authority: RCW 72.09.050 and chapter 34.04 RCW. 82-18-042 (Order 82-11), § 137-80-020, filed 8/27/82.