Columbia Display of unauthorized signs, signals or markings ordinance (§ 14-476)
Chapter 14: Motor Vehicles and Traffic · Article VI. Traffic Control Signs, Signals, Devices and Markings
In short: You may not put up or keep in view of any highway a sign, signal or marking that imitates or resembles an official traffic control device or railroad sign, tries to direct traffic, or hides or interferes with an official traffic device or railroad signal.
Our plain-English summary, not the official text or legal advice. The ordinance below is what counts.
No person shall place, maintain or display upon or in view of any highway, an unauthorized sign, signal, marking or device which purports to be or is an imitation of or resembles an official traffic control device or railroad sign or signal, or which attempts to direct the movement of traffic, or which hides from view or interferes with the effectiveness of any official traffic control device or any railroad sign or signal.
Official source: City of Columbia official Code of Ordinances (online): look up Sec. 14-476
Text from Supplement 139 (September 3, 2026).
Last checked November 1, 2026. The city's official copy controls; this page is a reading copy, not legal advice.