Wash. Admin. Code § 220-20-100
Statutory Authority: RCW 77.12.047. 09-06-042 (Order 09-27), § 220-20-100, filed 2/25/09, effective 5/1/09. Statutory Authority: RCW 77.12.047 and 77.04.020. 07-16-056, § 220-20-100, filed 7/26/07, effective 8/26/07. Statutory Authority: RCW 77.12.047. 07-05-051 (Order 07-22), § 220-20-100, filed 2/16/07, effective 3/19/07; 05-09-009 (Order 05-52), § 220-20-100, filed 4/7/05, effective 5/8/05; 02-08-048 (Order 02-53), § 220-20-100, filed 3/29/02, effective 5/1/02.