Washington · WA · Vehicles

Washington: Is it legal to put a train horn on a car?

Allowed with limits

Washington says no horn may make an unreasonably loud or harsh sound or a whistle, and bans sirens, whistles and bells on ordinary vehicles.

A car must have a working horn that can be heard from 200 feet. No horn or other warning device may emit an unreasonably loud or harsh sound or a whistle, and sirens, whistles and bells are limited to emergency vehicles, organ transport vehicles and theft alarms. Train horns aren't named, but a typical train horn very likely fails the loud-or-harsh rule.

Conditions

  • Horn must be audible from at least 200 feet
  • No unreasonably loud or harsh sound or whistle
  • No siren, whistle or bell except permitted uses
  • Horn may be used only when reasonably necessary for safe operation
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What the law says

(1) 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 may emit an unreasonably 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 or her horn but shall not otherwise use such horn when upon a highway. (2) No vehicle may be equipped with nor may any person use upon a vehicle any siren, whistle, or bell, except as otherwise permitted in this section.

Sources

Confirm with the state

Agency
Washington State Patrol, Equipment and Standards Section
Phone
(360) 596-4017
Website
wsp.wa.gov

How bordering states compare

Last verified · Confidence: Medium · How we research · Report an error

Medium confidence: an official source covers this by category or definition, so the answer is an inference. The details above say what was inferred.