Utah Code Title 76. Utah Criminal Code § 76-10-505.5. Possession of a dangerous weapon, firearm, or short barreled shotgun on or about school premises--Penalties

(3)(a) Possession of a dangerous weapon on or about school premises is a class B misdemeanor.

(b) Possession of a firearm or short barreled shotgun on or about school premises is a class A misdemeanor.

(a) the actor is authorized to possess a firearm as described in Section 53-5-704, 53-5-705, 76-10-511, or 76-10-523, or as otherwise authorized by law;

(b) the actor is authorized to possess a firearm as described in Section 53-5-704.5, unless the actor is in a location where the actor is prohibited from carrying a firearm under Subsection 53-5-710(2);

(c) the possession is approved by the responsible school administrator;

(d) the item is present or to be used in connection with a lawful, approved activity and is in the possession or under the control of the actor responsible for the item’s possession or use;

(e) the actor is an armed school security guard as described in Section 53G-8-704; or

(f) the possession is:

(a) prohibit prosecution of a more serious weapons offense that may occur on or about school premises;

(b) prevent an actor from securely storing a firearm on the grounds of a school if the actor:

(c) prohibit the prosecution of possession of a dangerous weapon by a minor, as described in Section 76-10-509.4, that occurs on or about school premises.