Utah Admin. Code 994-508-115
A party may request that an ALJ be removed from a case on the basis of partiality, interest, or prejudice. The request for removal must be made to the ALJ assigned to hear the case. The request must be made prior to the hearing unless the reason for the request was not, or could not have been known prior to the hearing. The request must state specific facts which are alleged to establish cause for removal. If the ALJ agrees to the removal, the case will be assigned to a different ALJ. If the ALJ finds no legitimate grounds for the removal, the request will be denied and the ALJ will explain the reasons for the denial during the hearing. Appeals pertaining to the partiality, interest, or prejudice of the ALJ may be filed consistent with the time limitations for appealing any other decision.
Utah Admin. Code R994-508-115