No motor vehicle or trailer shall be operated on any highway of this city unless it shall have displayed thereon the license plate or set of license plates issued by the Director of Revenue and authorized by RSMo. § 301.140. Each such plate shall be securely fastened to the motor vehicle in a manner so that all parts thereof shall be plainly visible and reasonably clean so that the reflective qualities thereof are not impaired. License plates shall be fastened to all motor vehicles except trucks, tractors, truck tractors, or truck-tractors licensed in excess of 12,000 pounds on the front and rear of such vehicles not less than eight nor more than 48 inches above the ground, with the letters and numbers thereon right side up. The license plates on trailers, motorcycles, motor tricycles, and motor scooters shall be displayed on the rear of such vehicles, with the letters and numbers thereon right side up. The license plate on buses, other than school buses, and on trucks, tractors, truck tractors, or truck-tractors licensed in excess of 12,000 pounds shall be displayed on the front of such vehicles not less than eight nor more than 48 inches above the ground, with the letters and numbers thereon right side up, or if two plates are issued for the vehicle pursuant to RSMo. § 301.130(5), displayed in the same manner on the front and rear of such vehicles. The license plate or plates authorized by RSMo. § 301.140, when properly attached, shall be prima facie evidence that the required fees have been paid.
(Prior Code, § 390.060) Penalty, see § 71.999