Wash. Admin. Code § 220-56-360
Statutory Authority: RCW 77.04.012, 77.04.013, 77.04.055, 77.12.045, and 77.12.047. 13-02-043 (Order 12-290), § 220-56-360, filed 12/21/12, effective 1/21/13. Statutory Authority: RCW 75.08.080. 92-11-012 (Order 92-19), § 220-56-360, filed 5/12/92, effective 6/12/92; 87-09-066 (Order 87-16), § 220-56-360, filed 4/21/87; 85-19-067 (Order 85-134), § 220-56-360, filed 9/17/85; 85-12-007 (Order 85-51), § 220-56-360, filed 5/23/85; 83-07-043 (Order 83-16), § 220-56-360, filed 3/17/83; 83-04-026 (Order 83-05), § 220-56-360, filed 1/27/83; 83-01-025 (Order 82-220), § 220-56-360, filed 12/8/82; 82-07-047 (Order 82-19), § 220-56-360, filed 3/18/82; 80-03-064 (Order 80-12), § 220-56-360, filed 2/27/80, effective 4/1/80.