All persons appearing in proceedings before the board, whether on their own behalf or in a representative capacity, shall conform to the rules of professional conduct (RPC) required of attorneys before the courts of Washington.
[Statutory Authority: RCW
82.03.170. WSR 05-13-141, § 456-09-220, filed 6/21/05, effective 8/1/05; WSR 89-10-056 (Order 89-02), § 456-09-220, filed 5/2/89.]