Pursuant to RCW 34.05.437, pleadings, briefs, and motions must be made in writing, and must be served on all other parties. This rule does not apply to matters that properly arise during a hearing.
Wash. Admin. Code § 308-08-505
Statutory Authority: RCW 34.05.220(1)(a). 90-21-086, § 308-08-505, filed 10/17/90, effective 11/17/90.