Missouri Laws 304.019 – Hand and mechanical signals, violations, penalty
1. No person shall stop or suddenly decrease the speed of or turn a vehicle from a direct course or move right or left upon a roadway unless and until such movement can be made with reasonable safety and then only after the giving of an appropriate signal in the manner provided herein.
(1) An operator or driver when stopping, or when checking the speed of the operator’s vehicle, if the movement of other vehicles may reasonably be affected by such checking of speed, shall extend such operator’s arm at an angle below horizontal so that the same may be seen in the rear of the vehicle;
Attorney's Note
Under the Missouri Laws, punishments for crimes depend on the classification. In the case of this section:| Class | Prison | Fine |
|---|---|---|
| Class C misdemeanor | up to 15 days | up to $750 |
Terms Used In Missouri Laws 304.019
- Person: any natural person, corporation, or other legal entity. See Missouri Laws 304.001
- Roadway: that portion of a state highway ordinarily used for vehicular travel, exclusive of the berm or shoulder. See Missouri Laws 304.001
- State: when applied to any of the United States, includes the District of Columbia and the territories, and the words "United States" includes such district and territories. See Missouri Laws 1.020
- State highway: a highway constructed or maintained by the state highways and transportation commission with the aid of state funds or United States government funds, or any highway included by authority of law in the state highway system, including all right-of-way. See Missouri Laws 304.001
(2) An operator or driver intending to turn the operator’s vehicle to the right shall extend such operator’s arm at an angle above horizontal so that the same may be seen in front of and in the rear of the vehicle, and shall slow down and approach the intersecting highway as near as practicable to the right side of the highway along which such operator is proceeding before turning;
(3) An operator or driver intending to turn the operator’s vehicle to the left shall extend such operator’s arm in a horizontal position so that the same may be seen in the rear of the vehicle, and shall slow down and approach the intersecting highway so that the left side of the vehicle shall be as near as practicable to the center line of the highway along which the operator is proceeding before turning;
(4) The signals herein required shall be given either by means of the hand and arm or by a signal light or signal device in good mechanical condition of a type approved by the state highway patrol; however, when a vehicle is so constructed or loaded that a hand and arm signal would not be visible both to the front and rear of such vehicle then such signals shall be given by such light or device. A vehicle shall be considered as so constructed or loaded that a hand and arm signal would not be visible both to the front and rear when the distance from the center of the top of the steering post to the left outside limit of the body, cab or load exceeds twenty-four inches, or when the distance from the center of the top of the steering post to the rear limit of the body or load thereon exceeds fourteen feet, which limit of fourteen feet shall apply to single vehicles or combinations of vehicles. The provisions of this subdivision shall not apply to any trailer which does not interfere with a clear view of the hand signals of the operator or of the signaling device upon the vehicle pulling such trailer; provided further that the provisions of this section as far as mechanical devices on vehicles so constructed that a hand and arm signal would not be visible both to the front and rear of such vehicle as above provided shall only be applicable to new vehicles registered within this state after the first day of January, 1954.
2. Violation of this section shall be deemed a class C misdemeanor.