66-3-18. Display of registration plates and temporary registration permits; displays prohibited and allowed.
A. The registration plate shall be attached to the rear of the vehicle for which it is issued; however, the registration plate shall be attached to the front of a road tractor or truck tractor. The plate shall be securely fastened at all times in a fixed horizontal position at a height of not less than twelve inches from the ground, measuring from the bottom of the plate. It shall be in a place and position so as to be clearly visible, and it shall be maintained free from foreign material and in a condition to be clearly legible.
B. A demonstration or temporary registration permit shall be firmly affixed to the inside left rear window of the vehicle to which it is issued, unless such display presents a safety hazard or the demonstration or temporary registration permit is not visible or readable from that position, in which case, the demonstration or temporary registration permit shall be displayed in such a manner that it is clearly visible from the rear or left side of the vehicle.
C. No vehicle while being operated on the highways of this state shall have displayed either on the front or the rear of the vehicle any registration plate, including validating sticker, other than one issued or validated for the current registration period by the department or any other licensing authority having jurisdiction over the vehicle. No expired registration plate or validating sticker shall be displayed on the vehicle other than an expired special registration plate, which may be exhibited on the front of the vehicle.
D. Nothing contained in this section shall be construed as prohibiting the use of a promotional or advertising plate on the front of the vehicle.