Wash. Admin. Code § 220-140-050
Statutory Authority: RCW 77.32.440. 99-17-096 (Order 99-128), § 220-140-050, filed 8/17/99, effective 9/17/99. Statutory Authority: RCW 75.54.140 and 75.32.370. 99-02-040 (Order 98-263), § 220-140-050, filed 12/31/98, effective 1/1/99.