(a) Every motor vehicle when operated upon a highway shall be equipped with a horn in good working order capable of emitting a sound audible under normal conditions for a distance of not less than 200 feet.
It shall be unlawful for any vehicle to be equipped with or for any person to use upon a vehicle any siren or for any person at any time to use a horn otherwise than as a reasonable warning or to make any unnecessary or unreasonably loud or harsh sound by means of a horn or other warning device.
(b) Every police and fire department and fire patrol vehicle and every ambulance used for emergency calls shall be equipped with a siren, bell, ululating multi-toned horns or other electronic siren type device approved by the Director of Public Safety.
(c) Any person violating any of the provisions of this section shall be guilty of a misdemeanor.
Structure Code of Alabama
Title 32 - Motor Vehicles and Traffic.
Chapter 5 - Regulation of Operation of Motor Vehicles, etc., Generally.
Division 1 - General Provisions.
Section 32-5-210 - Restrictions as to Tire Equipment.
Section 32-5-211 - Flag or Light at End of Load.
Section 32-5-213 - Horns and Warning Devices.
Section 32-5-215 - Windshields Must Be Unobstructed; Windshield Wipers; Tinting.
Section 32-5-216 - Mufflers; Prevention of Noise, Smoke, Etc.
Section 32-5-217 - Safety Belts.
Section 32-5-218 - Safety Glazing Material in Motor Vehicles.
Section 32-5-219 - Location of Television Viewers.
Section 32-5-221 - Flares or Other Warning Devices - Display.
Section 32-5-222 - Requirements for Child Passenger Restraints.