Wash. Admin. Code § 137-04-020
Statutory Authority: RCW 72.01.090. 07-12-073, § 137-04-020, filed 6/5/07, effective 7/6/07. Statutory Authority: RCW 42.17.250. 01-03-079, § 137-04-020, filed 1/16/01, effective 2/16/01; 82-04-023 (Order 82-3), § 137-04-020, filed 1/26/82.