Utah Code Ann. § 34-45-107
(1)
(5) A person who is subject to federal law that specifically forbids the presence of a firearm on property designated for motor vehicle parking, or a person who is subject to Section 550 of the United States Department of Homeland Security Appropriations Act of 2007, Pub. L. No. 109-295 or regulations enacted in accordance with that section, is exempt from Section 34-45-103 if:
(6) A person who is subject to Section 550 of the United States Department of Homeland Security Appropriations Act of 2007, Pub. L. No. 109-295 or regulations enacted in accordance with that section is exempt from this chapter if: