Utah Code Ann. § 76-6-102
(1) A person is guilty of arson if, under circumstances not amounting to aggravated arson, the person by means of fire or explosives unlawfully and intentionally damages:
(3) A violation of Subsection (1)(b) is a second degree felony if:
(c)
(4) A violation of Subsection (1)(b) is a third degree felony if:
(d)
(5) A violation of Subsection (1)(b) is a class A misdemeanor if the damage caused:
(b)