Wash. Admin. Code § 478-121-450
The request for reconsideration is automatically deemed to have been denied if, within twenty days from the date the request for reconsideration is timely submitted, the officer(s) who issued the final order does not either:
[Statutory Authority: RCW 28B.20.130. WSR 17-15-068, § 478-121-450, filed 7/14/17, effective 8/18/17.]