If you are referring to a vehicle mounted air horn, then here's your answer:
(625 ILCS 5/12‑601) (from Ch. 95 1/2, par. 12‑601)
Sec. 12‑601. Horns and warning devices.
(a) Every motor vehicle when operated upon a highway shall be equipped with a horn in good working order and capable of emitting sound audible under normal conditions from a distance of not less than 200 feet, but no horn or other warning device shall emit an unreasonable loud or harsh sound or a whistle. The driver of a motor vehicle shall when reasonably necessary to insure safe operation give audible warning with his horn but shall not otherwise use such horn when upon a highway.
Are Lamborghinis illegal in illinois
Yes, blackmail is illegal in Illinois.
Yes, cyber bullying is illegal in Illinois.
No, in fact they are mandatory.
Yes pooka fish are illegal in Illinois actually they are illegal in the whole United States. Does that answer your question?
Air horns are legal in Queensland as long as they only play one note (musical air horns are illegal). The ADR rules state that they can't be on a fixed cycle, ie, you press your horn button and the horn makes continuous sound for a set time and then turns itself off. It must start with the press of the horn button and must stop when the horn button is released. Also your horn must play one single continuous note with the horn button depressed. Your horn can be powered by any means including air.
They've have finally passed the law making it illegal to be texting and driving in Illinois.
IHSA has banned cow bells and horns from spectors during a football game. They feel like it distracts the players. I know from first hand experience cowbells were once a tradtion at my alamater and now they are no more
it is illegal
No.
if ur black you are illegal
Air Illinois ended in 1984.