Wash. Admin. Code § 220-48-052
Statutory Authority: RCW 77.04.012, 77.04.013, 77.04.055, 77.12.045, and 77.12.047. 12-23-016 (Order 12-267), § 220-48-052, filed 11/9/12, effective 12/10/12. Statutory Authority: RCW 75.08.080. 98-05-043, § 220-48-052, filed 2/11/98, effective 3/14/98; 92-11-011 (Order 92-28), § 220-48-052, filed 5/12/92, effective 6/12/92; 83-24-024 (Order 83-200), § 220-48-052, filed 11/30/83, effective 1/1/84; 82-24-080 (Order 82-215), § 220-48-052, filed 12/1/82, effective 1/1/83; 82-14-056 (Order 82-72), § 220-48-052, filed 7/1/82.