Any party may file a motion to disqualify a hearing examiner for lack of impartiality. A motion to disqualify a hearing examiner must be filed no later than 10 days after the initial scheduling conference and shall state with specificity the grounds for disqualification. A hearing examiner shall excuse himself in a proceeding in which the hearing examiner's impartiality might reasonably be questioned, including but not limited to instances of personal bias or prejudice concerning a party or a party's attorney or disputed evidentiary facts; or other bias or prejudice which would cause the hearing examiner to not render an impartial decision.
N.M. Admin. Code § 19.25.2.14