[Statutory Authority: RCW 41.05.021 and 41.05.160. WSR 17-14-067, § 182-544-0550, filed 6/29/17, effective 7/30/17. WSR 11-14-075, recodified as § 182-544-0550, filed 6/30/11, effective 7/1/11. Statutory Authority: RCW 74.08.090. WSR 11-11-016, § 388-544-0550, filed 5/9/11, effective 6/9/11. Statutory Authority: RCW 74.08.090, 74.09.510, 74.09.520. WSR 08-14-052, § 388-544-0550, filed 6/24/08, effective 7/25/08. Statutory Authority: RCW 74.08.090, 74.09.510, 74.09.520 and 42 C.F.R. 440.120 and 440.225. WSR 05-13-038, § 388-544-0550, filed 6/6/05, effective 7/7/05. Statutory Authority: RCW 74.08.090, 74.09.510 and 74.09.520. WSR 01-01-010, § 388-544-0550, filed 12/6/00, effective 1/6/01.]