Wash. Admin. Code § 415-04-020
[Statutory Authority: RCW 41.50.050(5), 41.50.050, 41.50.060. WSR 01-18-018, § 415-04-020, filed 8/24/01, effective 9/24/01. Statutory Authority: RCW 41.50.050 and 41.50.780(11). WSR 96-16-020, § 415-04-020, filed 7/29/96, effective 7/29/96. Statutory Authority: RCW 41.50.050(5) and 34.05.250. WSR 93-11-079, § 415-04-020, filed 5/18/93, effective 6/18/93. Statutory Authority: RCW 41.50.050. WSR 91-19-064, § 415-04-020, filed 9/16/91, effective 10/17/91; Order 4, § 415-04-020, filed 7/27/77.]