Utah Code § 58-60a-106: Section 6 -- Active Duty Military personnel or their spouses.

Active Duty Military personnel, or their spouses, shall designate a Home State where the individual has a current license in good standing. The individual may retain the Home State designation during the period the service member is on active duty. Subsequent to designating a Home State, the individual shall only change their Home State through application for licensure in the new State, or through the process outlined in Section 58-60a-105.