Utah Code § 78B-14-210
A tribunal of this state exercising personal jurisdiction over a nonresident in a proceeding under this chapter, under other law of this state relating to a support order, or recognizing a foreign support order may receive evidence from outside this state pursuant to Section 78B-14-316, communicate with a tribunal outside this state pursuant to Section 78B-14-317, and obtain discovery through a tribunal outside this state pursuant to Section 78B-14-318. In all other respects, Part 3, Civil Provisions of General Application, Part 4, Establishment of Support Order or Determination of Parentage, Part 5, Enforcement of Support Order Without Registration, and Part 6, Registration, Enforcement, and Modification of Support Order, do not apply and the tribunal shall apply the procedural and substantive law of this state.
Utah Code § 78B-14-210