Utah Code Ann. § 13-11-20
(1) An action may be maintained as a class action under this act only if:
(e) either:
(i) the prosecution of separate actions by or against individual members of the class would create a risk of:
(2) The matters pertinent to the findings under Subsection (1)(e)(iii) include:
(4) In a class action maintained under Subsection (1)(e) the court may direct to the members of the class the best notice practicable under the circumstances, including individual notice to each member who can be identified through reasonable effort. The notice shall advise each member that:
(6) In the conduct of a class action the court may make appropriate orders: