Utah Code § 4-1-111

Except as otherwise provided by statute or rule, the following individuals may engage in the practice of an occupation or profession regulated by this title, subject to the stated circumstances and limitations, without being licensed under this title: (1) an individual licensed under the laws of this state, other than under this title, to practice or engage in an occupation or profession, while engaged in the lawful, professional, and competent practice of that occupation or profession; (2) an individual serving in the armed forces of the United States, the United States Public Health Service, the United States Department of Veterans Affairs, or any other federal agency while engaged in activities regulated under this title as a part of employment with that federal agency if the individual holds a valid license to practice the regulated occupation or profession issued by any other state or jurisdiction recognized by the department; and (3) the spouse of an individual serving in the armed forces of the United States or the spouse of a DOD civilian while the individual or DOD civilian is stationed within this state, if: (a) the spouse holds a valid license to practice the regulated occupation or profession issued by any other state or jurisdiction recognized by the department; and (b) the license is current and the spouse is in good standing in the state or jurisdiction of licensure.