Wash. Admin. Code § 220-16-790
Statutory Authority: RCW 77.12.047. 07-05-051 (Order 07-22), § 220-16-790, filed 2/16/07, effective 3/19/07; 02-17-017 (Order 02-187), § 220-16-790, filed 8/9/02, effective 9/9/02; 02-08-048 (Order 02-53), § 220-16-790, filed 3/29/02, effective 5/1/02.