Wash. Admin. Code § 458-20-146
Statutory Authority: RCW 82.32.300, 82.01.060(2), chapters 82.04, 82.08, 82.12 and 82.32 RCW. 10-06-069, § 458-20-146, filed 2/25/10, effective 3/28/10. Statutory Authority: RCW 82.32.300. 83-07-032 (Order ET 83-15), § 458-20-146, filed 3/15/83; Order ET 70-3, § 458-20-146 (Rule 146), filed 5/29/70, effective 7/1/70.