Colorado Revised Statutes Title 42. Vehicles and Traffic § 42-3-117. Nonresidents

(1) A nonresident owner, except as otherwise provided in this section, owning a foreign motor vehicle may operate or permit such vehicle to operate within this state without registering such vehicle or paying fees so long as the vehicle is currently registered in the state, country, or other place of which the owner is a resident, and the motor vehicle displays the number plate or plates issued for such vehicle in the place of residence of such owner.

(2) An owner or operator of a foreign vehicle operated within this state for the transportation of persons or property for compensation or for the transportation of merchandise shall register such vehicle and pay the same fees as required for similar vehicles owned by residents of this state; except that a motor vehicle, truck, semitractor, truck tractor, bus, trailer, or semitrailer registered in a foreign state or country that has a registration reciprocity agreement with Colorado shall be registered in accordance with such agreement.