All persons appearing in proceedings before a hearing officer or board in a representative capacity must conform to the standards of ethical conduct required of attorneys before the courts of Washington. If any such person does not conform to such standards, the hearing officer or board may decline to permit such person to appear in a representative capacity in any proceeding before the hearing officer or board.
Wash. Admin. Code § 446-08-040
Order II, § 446-08-040, filed 11/22/74; Rule .08.040, filed 3/23/60.