Sec. 547.501. AUDIBLE WARNING DEVICES. (a) A motor vehicle shall be equipped with a horn in good working condition that emits a sound audible under normal conditions at a distance of at least 200 feet.
(b) A vehicle may not be equipped with and a person may not use on a vehicle a siren, whistle, or bell unless the vehicle is:
(1) a commercial vehicle that is equipped with a theft alarm signal device arranged so that the device cannot be used as an ordinary warning signal; or
(2) an authorized emergency vehicle that is equipped with a siren, whistle, or bell that complies with Section 547.702.
(c) A motor vehicle operator shall use a horn to provide audible warning only when necessary to insure safe operation.
(d) A warning device, including a horn, may not emit an unreasonably loud or harsh sound or a whistle.
Acts 1995, 74th Leg., ch. 165, Sec. 1, eff. Sept. 1, 1995.
Structure Texas Statutes
Title 7 - Vehicles and Traffic
Subtitle C - Rules of the Road
Chapter 547 - Vehicle Equipment
Subchapter J. Provisions Relating to Warning Device Requirements on Vehicles
Section 547.501. Audible Warning Devices
Section 547.502. Visible Warning Devices Required
Section 547.503. Display of Hazard Lamps
Section 547.504. Display of Devices When Lighted Lamps Required
Section 547.505. Display of Devices When Lighted Lamps Are Not Required
Section 547.506. Display of Devices: Vehicles Off Roadway
Section 547.507. Display of Devices When View of Vehicle Obstructed