(a) At his own request. A Judgment Officer may withdraw from a voluntary decisional proceeding when he considers himself to be disqualified on the grounds of personal bias, conflict of interest, or similar bases. In such event he shall immediately notify the Commission and each of the parties of his withdrawal and of his basis for such action.

(b) Upon the request of a party. Any party may request a Judgment Officer to disqualify himself on the grounds of personal bias, conflict of interest, or similar bases. Interlocutory review of an adverse ruling by the Judgment Officer may be sought without certification of the matter by the Judgment Officer only in accordance with the procedures set forth in §12.309 of the Reparation Rules.