Wash. Admin. Code § 458-20-116
Statutory Authority: RCW 82.32.300, 82.01.060(2), chapters 82.04, 82.08, 82.12 and 82.32 RCW. 10-06-069, § 458-20-116, filed 2/25/10, effective 3/28/10. Statutory Authority: RCW 82.32.300. 93-19-018, § 458-20-116, filed 9/2/93, effective 10/3/93; 83-07-034 (Order ET 83-17), § 458-20-116, filed 3/15/83; Order ET 70-3, § 458-20-116 (Rule 116), filed 5/29/70, effective 7/1/70.