It shall be unlawful for any person to operate on the highways, streets or alleys
of the city any motor vehicle which does not have current registration plate(s) issued
by the director of revenue, State of Missouri, except that whenever a motor vehicle
or trailer owner purchases a replacement motor vehicle or trailer from an individual
or dealership, the owner of a motor vehicle or trailer may operate the newly acquired
motor vehicle or trailer with such transferred license plates for no more than thirty
(30) days from the date of purchase until making proper application for title and
transfer of license plates with an office of the department of revenue. The license
plates may only be transferred if the vehicle acquired is of the same vehicle category
as the vehicle being replaced. The registration plate(s) shall be displayed unobscured
and unobstructed with all parts thereof plainly visible and reasonably clean and fastened
securely thereto. On all motor vehicles, one (1) plate shall be displayed on the front
and the other on the rear of such motor vehicle, not less than eight (8) nor more
than forty-eight (48) inches above the ground; except that on trailers, motorcycles,
motor tricycles and motor scooters, one (1) plate shall be so displayed on the rear
thereof. In the event that only one (1) license plate is issued, such plate shall
be displayed on the rear of the motor vehicle.