Wash. Admin. Code § 192-900-005
An "aggrieved party" is any interested party who receives an adverse decision from:
[Statutory Authority: RCW 50B.04.020, 50B.04.080, 50B.04.090 and 50B.04.120. WSR 21-17-140, § 192-900-005, filed 8/18/21, effective 9/18/21.]