Utah Code Ann. § 32B-1-404
(1) To obtain one or more of the following, an individual shall present proof of age at the request of a person listed in Subsection (2):
(2) To determine whether the individual described in Subsection (1) is 21 years of age, the following may request a person described in Subsection (1) to present proof of age:
Enacted by Chapter 276, 2010 General Session