The license plates, required on every motor vehicle by laws of the state, or by laws of any other state while such vehicle is operated within the corporate limits, shall be kept clear and free from grease, dust or other blurring matter so they will be plainly visible at all times, and shall be attached in such manner as to be clearly readable at a distance of 100 feet and, under no circumstances, shall they be obstructed by any portion of the vehicle.
(2005 Code, § 5-503)