Utah Code § 34A-1-307
§ 34A-1-307. Action permitted in adjudicative proceedings.
For the purposes mentioned in this title, the commission may take any action permitted: (1) if a formal adjudicative proceeding, under Section 63G-4-205 or 63G-4-206; or (2) if an informal adjudicative proceeding, under Section 63G-4-203.