Missouri Code of State Regulations
Title 11 - DEPARTMENT OF PUBLIC SAFETY
Division 50 - Missouri State Highway Patrol
Chapter 2 - Motor Vehicle Inspection
Section 11 CSR 50-2.190 - Signalling Devices

Universal Citation: 11 MO Code of State Regs 50-2.190

Current through Register Vol. 49, No. 18, September 16, 2024

PURPOSE: This rule describes the procedures and standards for the inspection of signalling devices. The inspection of signalling devices is a requirement of section 307.365, RSMo.

(1) Turn Signals. Turn signals installed by the manufacturer or their equivalent in number, size, and intensity shall be in operating condition. The front signal lights may be white or amber and may be in combination with the parking lights. The rear signal lights may be red or amber, except when in combination with a taillight the lens must be red.

(2) Stoplights. Stoplights installed by the manufacturer or their equivalent in number, size, and intensity shall be in operating condition. Stoplights may be red or amber, except when in combination with the taillight the stoplight must be red. Stoplights must operate when the service brake is applied.

(3) Every vehicle manufactured after January 1, 1954, must be equipped with mechanical or electrical turn signals and a stoplight if the distance from the center of the top of the steering post to the-

(A) Left outside limit of the body, cab or load exceeds twenty-four inches (24"); and

(B) Rear limit of the body or load exceeds fourteen feet (14'). The limit of fourteen feet (14') shall apply to both single and vehicle combinations.

(4) Inspect Vehicle for Proper Signalling Devices. The headlights must be on with the engine running, when inspecting the operation of the signalling devices and stoplights. Move turn signal lever up and down and observe function of turn signal lights.

(5) Reject vehicle if:

(A) Not equipped with the required signalling devices;

(B) A signalling device is obstructed;

(C) A required signalling device fails to function properly. Do not reject if turn signal fails to self-cancel or will function properly by manually holding the lever in the engaged position;

(D) A signalling device or electrical switch is not securely mounted;

(E) A light shows color contrary to law;

(F) Wiring or electrical connectors are defective; or

(G) A lens is missing, incorrectly installed, repaired with tape or broken to the extent that moisture or contamination could enter the reflective area or light socket.

*Original authority: 307.360, RSMo 1967, amended 1971, 1973, 1979.

Disclaimer: These regulations may not be the most recent version. Missouri may have more current or accurate information. We make no warranties or guarantees about the accuracy, completeness, or adequacy of the information contained on this site or the information linked to on the state site. Please check official sources.
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