Wash. Admin. Code § 220-49-020
Statutory Authority: RCW 77.12.047. 04-17-098 (Order 04-218), § 220-49-020, filed 8/17/04, effective 9/17/04; 01-02-058 (Order 00-263), § 220-49-020, filed 12/29/00, effective 1/29/01. Statutory Authority: RCW 75.08.080. 99-17-067 (Order 99-127), § 220-49-020, filed 8/13/99, effective 9/13/99; 98-05-043, § 220-49-020, filed 2/11/98, effective 3/14/98; 95-23-020 (Order 95-166), § 220-49-020, filed 11/8/95, effective 12/9/95; 94-12-009 (Order 94-23), § 220-49-020, filed 5/19/94, effective 6/19/94; 84-08-014 (Order 84-24), § 220-49-020, filed 3/27/84; 83-24-024 (Order 83-200), § 220-49-020, filed 11/30/83, effective 1/1/84; 83-04-025 (Order 83-04), § 220-49-020, filed 1/27/83; 79-03-014 (Order 79-11), § 220-49-020, filed 2/15/79; Order 76-148, § 220-49-020, filed 12/2/76; Order 1105, § 220-49-020, filed 12/28/73.