West Virginia doesn't ban train horns, but its horn statute has a phrase most states don't: no horn may make an "unreasonably loud or harsh sound." Add a warning-only rule for horn use on highways, a State Police inspection, and a disorderly conduct law, and here's what that means for owning and using a train horn in the Mountain State.
The short answer
Owning a train horn in West Virginia is legal, and carrying one in your truck is legal. Using one on a public road is where you can get in trouble. The rules that matter:
- Your vehicle needs a working horn audible from 200 feet. That's the minimum in W. Va. Code § 17C-15-33(a).
- No horn may sound "unreasonably loud or harsh" or like a whistle. The same sentence sets that limit. It doesn't name a decibel number.
- On a highway, the horn is for warnings only. You sound it "when reasonably necessary to insure safe operation" and "shall not otherwise use such horn."
- No sirens, whistles, or bells on a vehicle unless the statute allows it (mainly emergency vehicles).
- Inspection is now every two years, not every year. The horn is on the checklist.
- Loud noise meant to annoy in certain public places can be charged as disorderly conduct.
For how West Virginia fits into the national picture, start with our overview of train horn legality in the US.
What W. Va. Code § 17C-15-33 actually says
The horn statute dates to 1951 and has never mentioned train horns. Here it is, broken down piece by piece:
| Part of the law | What it says | What it means for a train horn |
|---|---|---|
| § 17C-15-33(a), first sentence | Every motor vehicle on a highway must have a horn in good working order, audible from at least 200 feet, "but no horn or other warning device shall emit an unreasonably loud or harsh sound or a whistle." | A train horn easily clears the 200-foot minimum. The question is whether an officer or judge sees it as "unreasonably loud or harsh." There's no dB cap to point to either way. |
| § 17C-15-33(a), second sentence | The driver shall give an audible warning with the horn when reasonably necessary for safe operation, "but shall not otherwise use such horn when upon a highway." | Blasting to say hi, celebrate, or prank someone on a public road is a violation, whatever horn you use. |
| § 17C-15-33(b) | No vehicle may be equipped with, and no one may use on a vehicle, "any siren, whistle, or bell," except as the section allows. | A train horn plays a steady chord, not a siren. A wailing siren setup is a violation even if you never use it. |
| § 17C-18-1 | Breaking a Chapter 17C rule with no other set penalty is a misdemeanor: up to $100 or 10 days for a first conviction, up to $200 or 20 days for a second within a year, and up to $500 and/or six months after that. | A horn ticket is a misdemeanor, and the penalty gets steeper if you rack up repeats within a year. |
The "unreasonably loud or harsh" wording is what sets West Virginia apart. Many states only regulate how you use a horn. West Virginia also regulates the sound a horn makes on a vehicle driven on a highway. A loud horn isn't illegal on its face, but the law gives an officer room to decide that a 150 dB chord in downtown Charleston crosses the line. To see how that compares with other states, check our ranking of the strictest train horn states.
West Virginia inspection: every two years, and the horn is checked
If you've read that West Virginia requires an annual inspection, that's out of date. According to the WV DMV, inspections moved from every year to every 24 months on 01/01/2024 under HB 2310. The maximum sticker fee is $19, and it covers the full two years. § 17C-16-4 now says every registered vehicle is inspected "once every two years." Commercial vehicles covered by federal motor carrier rules still go every year. A 2026 bill to end inspections entirely (SB 249) was sent to committee, but as of 10/01/2026 the code still requires them.
Inspections are run by stations licensed by the West Virginia State Police, using the State Police's Official Motor Vehicle Inspection Manual (the current edition is dated 9/24). The horn rules depend on the vehicle:
| Vehicle | Reject if |
|---|---|
| Passenger car or light truck (Section 9.7) | The horn doesn't work or "is not present as originally equipped," or the horn isn't securely mounted, or anything else in the section is violated. |
| Truck (Section 13.7) | An air horn the truck is equipped with doesn't work, the original standard (city) horn doesn't work, or "any horn is not securely mounted." |
| Motorcycle (Section 10.5) | The horn doesn't meet or exceed the original maker's specs, isn't securely mounted, doesn't work, or "emits unreasonably loud or harsh sound or whistle." |
Two points stand out. First, the factory horn has to be there and working. A train horn that replaces the stock horn can fail a car or light truck under Section 9.7. Second, the motorcycle section turns the "unreasonably loud or harsh" wording into a reject item, so a loud horn bolted to a bike is a real inspection risk.
The penalties for skipping inspection are small but real. Under § 17C-16-9, driving without a valid sticker is a misdemeanor with a fine of up to $100. You can avoid it by getting inspected within five days of the citation, unless the sticker has been expired more than three months. Separately, under § 17C-16-2, an officer who has reasonable cause to think your vehicle isn't equipped as the law requires can stop it and inspect it at any time. If it fails, you get five days to fix it and get a new certificate.
For a hard-wired setup, our guide on whether a train horn will pass vehicle inspection walks through mounting and wiring trouble spots. If you want the horn to stay silent while the mechanic tests the steering-wheel button, read how to wire a kill switch so the horn stays quiet at inspection.
Disturbing the peace: disorderly conduct and city ordinances
West Virginia's disorderly conduct law, § 61-6-1b, can reach a train horn too, but only under specific conditions. All of these have to be true:
- The place: a public place, state property, a mobile home park, a public parking area, a common area of an apartment building or dorm, or a common area of a shopping center or mall.
- The act: "unreasonably loud noise that is intended to cause annoyance or alarm to another person."
- The warning: you keep doing it after a law-enforcement officer tells you to stop.
The penalty is up to 24 hours in jail or a fine of up to $100. The practical lesson: if an officer tells you to stop sounding the horn in a parking lot, stop. Continuing is what turns it into a criminal charge.
Cities add their own rules on top. Morgantown's noise ordinance bans sounding any vehicle horn or signaling device on a street or public place "except as a danger warning." It also bans unreasonably loud or harsh sounds and "unnecessary" prolonged sounding. Violators first get an order to stop. If they don't, the fine is up to $500. Other towns write their own wording and fines, so check the ordinance where you live, hunt, or tailgate. Our guide to when it's legal to honk covers how warning-only rules work in practice.
Why a portable battery horn fits West Virginia
A battery-powered horn avoids most of the West Virginia problems above. It isn't wired into the vehicle, so the factory horn stays exactly "as originally equipped" for Section 9.7. Nothing is bolted to the frame or the bike, so there's no "not securely mounted" reject item. And because it isn't mounted on the vehicle, it's a horn you use on the farm, at deer camp, on the river, or on private land with the owner's okay. Our list of places to test a train horn legally has more ideas.
The Extreme Series Train Horn for Milwaukee® 18v Battery is a good example. It's a self-contained 150 dB horn that runs on any Milwaukee® M18™ battery you already own and comes with a wireless remote. Pointing it across your own hayfield is very different, legally, from leaning on it from the cab on a state route.
If your tools run on a different battery platform, the same idea applies to the rest of our portable battery train horns, from 130 dB dual-trumpet models up to the 150 dB Extreme Series.
FAQ
Is there a decibel limit for car horns in West Virginia?
No number is written into the law. § 17C-15-33 sets a minimum (audible at 200 feet) and a vague maximum: no "unreasonably loud or harsh sound." What counts as unreasonable comes down to the officer and the court, so where and when you sound the horn matters a lot.
Can a train horn fail a West Virginia inspection?
The manual has no reject item that just says "extra horn." But a car or light truck fails if the original horn is missing or doesn't work, or if a horn isn't securely mounted. Motorcycles also fail for a horn that "emits unreasonably loud or harsh sound." A portable horn that comes out of the vehicle avoids all of this.
Does West Virginia still require yearly inspections?
Not for most vehicles. Since 01/01/2024, passenger cars and light trucks are inspected every two years. Commercial vehicles under federal motor carrier rules still need an inspection every year.
Can I get arrested for blasting a train horn?
Two laws apply. A horn violation under Chapter 17C is a misdemeanor, with up to 10 days in jail possible on a first conviction. Disorderly conduct under § 61-6-1b requires noise meant to annoy, in a covered place, after an officer tells you to stop. Neither applies to a warning blast that prevents a crash.