Montana Title 45. Crimes § 45-6-103. Arson

(a) damages or destroys a structure, vehicle, personal property (other than a vehicle) that exceeds $1,500 in value, crop, pasture, forest, or other real property that is property of another without consent;

(b) damages or destroys a structure, vehicle, crop, pasture, forest, or other property that the person owns or has a possessory interest in, with the purpose of obtaining a pecuniary or other gain through fraud or deception; or

(c) places another person in danger of death or bodily injury, including a firefighter responding to or at the scene of a fire or explosion.