How far must a vehicle's horn be audible to comply with regulations?

To comply with regulations, a vehicle's horn must be audible at a distance of at least 200 feet. This requirement ensures that drivers can alert other road users, whether they are pedestrians, cyclists, or other vehicles, of their presence in a timely manner. The effective use of a horn contributes to traffic safety by helping to prevent accidents, especially in situations where visibility is limited or when approaching intersections. Audibility at this distance is deemed sufficient for communication on the road, allowing for safe maneuvering and alerting other parties of potential hazards.