Utah Code § 75-1-301: Territorial application.

Except as otherwise provided in this title, this title applies to:

(1) the affairs and estates of decedents, missing persons, and persons to be protected, domiciled in this state;

(2) the property of nonresidents located in this state or property coming into the control of a fiduciary who is subject to the laws of this state;

(3) incapacitated persons and minors in this state;

(4) survivorship and related accounts in this state; and

(5) trusts subject to administration in this state.