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 50-2.210 - Horn

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

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

(1) Every motor vehicle shall be equipped with a horn directed forward, or whistle in good working order, capable of emitting a sound adequate in quantity and volume to give warning of the approach of the vehicle to other users of the highway and to pedestrians.

(2) Reject vehicle if:

(A) Vehicle is not equipped with a horn;

(B) Horn is not audible under normal conditions;

(C) Horn button or switch is not firmly mounted providing a good ground. If horn is actuated by grounding two (2) naked wires or a similar method; or

(D) Horn button or switch is not readily accessible from driver's position.

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

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