Wash. Admin. Code § 458-20-115
Statutory Authority: RCW 82.32.300, 82.01.060(2), chapters 82.04, 82.08, 82.12 and 82.32 RCW. 10-06-069, § 458-20-115, filed 2/25/10, effective 3/28/10. Statutory Authority: RCW 82.32.300. 93-19-017, § 458-20-115, filed 9/2/93, effective 10/3/93; 88-20-014 (Order 88-6), § 458-20-115, filed 9/27/88; Order 74-2, § 458-20-115, filed 6/24/74; Order ET 70-3, § 458-20-115 (Rule 115), filed 5/29/70, effective 7/1/70.