Wash. Admin. Code § 434-840-020
Statutory Authority: RCW 40.24.090. 05-13-059, § 434-840-020, filed 6/9/05, effective 7/10/05; 98-19-063, § 434-840-020, filed 9/16/98, effective 10/17/98. Statutory Authority: 1991 c 23. 91-20-074, § 434-840-020, filed 9/26/91, effective 10/27/91.