Utah Code § 76-11-214
Parent or guardian knowing a minor is in possession of a dangerous weapon.
(1) Terms defined in Sections 76-1-101.5, 76-11-101, and 76-11-201 apply to this section. (2) An actor is guilty of parent or guardian knowing a minor is in possession of a dangerous weapon if: (a) the actor knows a minor is in possession of a dangerous weapon in violation of Section 76-11-211, Possession of a dangerous weapon by a minor; (b) the minor is the actor's biological or adopted child or the actor is the legal guardian of the minor; and (c) the actor fails to make reasonable efforts to remove the dangerous weapon from the minor's possession. (3) A violation of Subsection (2) is a class B misdemeanor.