Wash. Admin. Code § 174-116-250
(2) In any review, appeal or hearing alleging the violation of any parking regulation, proof of the following will create a presumption that the registered owner or permit holder was the person who parked or placed the vehicle in the location where the violation occurred:
[Statutory Authority: RCW 28B.10.560. WSR 21-19-049, § 174-116-250, filed 9/13/21, effective 10/14/21. Statutory Authority: RCW 28B.40.120. WSR 17-02-076, § 174-116-250, filed 1/3/17, effective 2/3/17.]