Wash. Admin. Code § 220-24-020
Statutory Authority: RCW 77.12.047. 01-13-006 (Order 01-105), § 220-24-020, filed 6/7/01, effective 7/8/01. Statutory Authority: RCW 75.08.080. 79-07-046 (Order 79-43), § 220-24-020, filed 6/22/79; 78-05-067 (Order 78-20), § 220-24-020, filed 4/27/78; Order 76-24, § 220-24-020, filed 4/20/76; Order 1221, § 220-24-020, filed 7/1/75; Order 1116, § 220-24-020, filed 4/30/74; Order 726, § 4 (part), filed 4/24/67; Order 677, subsection 1, filed 3/31/66; Orders 398 and 256, filed 3/1/60; Order 677, subsection 2, filed 3/31/66; Orders 357 and 256, filed 3/1/60; Orders 401 and 256, subsection 3, filed 3/1/60.