[Statutory Authority: Chapter
36.78 RCW. WSR 19-04-048, § 136-12-020, filed 1/29/19, effective 3/1/19; WSR 17-11-037, § 136-12-020, filed 5/11/17, effective 6/11/17; WSR 14-17-035, § 136-12-020, filed 8/13/14, effective 9/13/14. Statutory Authority: Chapter
36.79 RCW. WSR 02-18-018, § 136-12-020, filed 8/22/02, effective 9/22/02; WSR 99-01-021, § 136-12-020, filed 12/7/98, effective 1/7/99. Statutory Authority: RCW
36.78.080. WSR 90-07-074 (Order 74), § 136-12-020, filed 3/21/90, effective 4/21/90; Regulation 1, § 136-12-020, filed 12/13/67.]