Wash. Admin. Code § 182-543-2100
(2) The request must include credible evidence, including but not limited to:
[Statutory Authority: RCW 41.05.021, 41.05.160 and 42 C.F.R. Part 440.70; 42 U.S.C. section 1396 (b)(i)(27). WSR 18-24-021, § 182-543-2100, filed 11/27/18, effective 1/1/19. Statutory Authority: RCW 41.05.021 and 2013 c 178. WSR 14-08-035, § 182-543-2100, filed 3/25/14, effective 4/25/14. WSR 11-14-075, recodified as § 182-543-2100, filed 6/30/11, effective 7/1/11. Statutory Authority: RCW 74.08.090 and 74.04.050. WSR 11-14-052, § 388-543-2100, filed 6/29/11, effective 8/1/11. Statutory Authority: RCW 74.04.050, 74.04.057, 74.08.090, and Public Law 104-191. WSR 03-19-083, § 388-543-2100, filed 9/12/03, effective 10/13/03. Statutory Authority: RCW 74.08.090, 74.09.530. WSR 01-01-078, § 388-543-2100, filed 12/13/00, effective 1/13/01.]