New York City is the one place in the US where the law names air horns on vehicles and bans them outright. Here is what Admin Code §24-237(b) says, what a horn ticket costs in the five boroughs, and how the city's noise cameras fit in.
This is plain-language information for horn owners, not legal advice. If you are fighting a summons, talk to a New York attorney.
The short answer
You can own a battery-powered train horn in New York City and drive it through the city in your truck bed. What you can't legally do is sound it there. The NYC Noise Code (Chapter 2 of Title 24 of the Administrative Code) bans air horns on non-emergency vehicles, allows a normal car horn only as a danger warning, and has a catch-all "unreasonable noise" rule for everything else. A train horn runs into all three.
The city rules apply on top of the state rules. New York's Vehicle and Traffic Law still applies once you leave the five boroughs, and we cover that statewide picture, including VTL §375, in our New York train horn guide. This article covers only what changes inside city limits.
The section that bans air horns: §24-237, not §24-233
Online you will often see "§24-233" given as the air-horn ban. It isn't. Section 24-233 covers personal audio devices, which in practice means car stereos and speakers that can be heard 25 feet away. The horn rules are in §24-237, "Sound signal devices." These are the sections a train horn owner should know:
| Section | What it says | How it hits a train horn |
|---|---|---|
| §24-237(a) | A claxon (car horn) on a motor vehicle may be used only "as a sound signal of imminent danger" or as a car alarm. | Even your factory horn is limited to warnings. This is also the section DEP's noise cameras use for honking. |
| §24-237(b) | No one may use "an air horn or gong installed on any motor vehicle" except as allowed for emergency vehicles under §24-241. | This is the direct ban. A train horn is an air horn, so there is no "warning only" exception for you. |
| §24-233(b)(2) | Bans a personal audio device in a vehicle that can be heard 25 feet or more outside the vehicle. | Not a horn rule. This is probably where the "24-233" mix-up comes from, because the cameras enforce it too. |
| §24-218 | General ban on "unreasonable noise," including impulsive sound 15 dB(A) or more above ambient, measured 15 feet or more from the source. | The backstop. It applies even when the horn isn't mounted on a vehicle. |
Note the wording of §24-237(b): it bans the air horn outright. A regular car horn gets a danger exception, but an air horn on a private vehicle doesn't. Under the plain text, a single blast in Queens traffic breaks the rule even if a cab really was drifting into your lane.
What a train horn ticket costs in NYC
Most Noise Code penalties are civil, and summonses are heard at the NYC Office of Administrative Trials and Hearings (OATH). The Admin Code penalty table sets a minimum and a maximum for each offense level. The repeat-offense levels count only repeat violations of the same provision within two years.
| Violation | 1st offense | 2nd offense | 3rd and later |
|---|---|---|---|
| §24-237(b) air horn or gong on a vehicle | $220 – $875 | $440 – $1,750 | $660 – $2,625 |
| §24-237(a) unauthorized car-horn use | $150 – $1,000 | $300 – $2,000 | $450 – $3,000 |
| §24-218 unreasonable noise | $350 – $1,000 | $700 – $2,000 | $1,050 – $3,000 |
In practice, DEP's penalty schedule lists a standard $350 first-offense penalty for an air-horn summons and $875 if you default by not responding or showing up. Defaulting is the expensive mistake here. A bill introduced in 2022 (Int. 312) would have raised these vehicle-noise penalties, but it was filed at the end of the session without passing, so the amounts above are still the ones that apply. For how horn citations generally get written and contested in other places, see can you get a ticket for a train horn.
Noise cameras: tickets by mail
NYC is one of the few US cities that ticket vehicle noise by camera. According to DEP, each unit combines a microphone array, a panoramic "fisheye" camera and a license plate reader. When a vehicle goes over a preset noise limit, the system marks the source on the video and records the plate. DEP staff then review the event and send a summons to the vehicle owner, so it doesn't matter who was holding the remote.
The cameras aren't only for loud exhausts. DEP says it also uses them for horn honking under §24-237(a), with penalties from $350 up to $3,000 including the default penalty. A modified muffler under §24-236(e) runs $800 to $2,625. The 2025 annual report for the camera program gives a sense of how big it is:
- 12 cameras in service during 2025, at locations in Manhattan, the Bronx, Brooklyn and Queens.
- 15,994 events captured and 1,691 summonses issued, about 4.6 per day.
- Just one location, East 36th Street in Manhattan, produced 701 summonses.
- $1,472,265 in penalties imposed, with $308,229 actually paid. Of the summonses filed at OATH, 965 ended in default.
Local Law 7 of 2024 requires at least five cameras in each borough, but only "subject to appropriations," and DEP's report says it hadn't received that money as of 2025. Cameras are also moved. Several were removed or out for maintenance during 2025, so you can't plan around a fixed list of locations. Assume any block in Manhattan could have one.
What about a portable or handheld horn?
Our horns run on cordless tool packs, so owners often ask whether a horn that isn't bolted to the truck gets around §24-237(b), which bans an air horn "installed on" a motor vehicle. The honest answer is that the wording is narrow, but it doesn't help much in practice:
- §24-218 still applies. An impulsive sound 15 dB(A) above the background level, measured at 15 feet, counts as "unreasonable noise." A horn rated at 130 dB clears that in any part of the city.
- It's enforced by people. The Noise Code allows the NYPD as well as DEP to issue summonses. An officer who hears a train horn on a sidewalk or a stoop will write something.
- If it's in or on the truck, a camera will treat it as vehicle noise. A horn strapped in the bed or held out the window makes noise that a camera ties to your plate.
Treat a portable horn as something you carry through the city, not something you use there.
How to own a train horn and still drive in NYC
Plenty of owners live in the boroughs or commute through them and use their horns elsewhere: on the boat, at the farm, at a truck meet upstate. These habits keep you clear of a city summons:
- Keep the factory horn connected. Inside the city, that is the only horn you're allowed to use, and only for real danger.
- Pull the battery before you cross a bridge or tunnel into the city. With a battery-powered horn, taking the pack out is a two-second job, and nobody can bump the remote by accident.
- Keep the remote somewhere safe. A long-range remote in a cup holder, where a kid in the back seat can grab it, is how you end up with a ticket in the mail.
- Find a place built for it. Private land with permission, or an event that allows horns, is the right spot. Our guide on where to test a train horn legally lists options.
If you want a horn you'll be using outside the city, battery choice matters more than raw volume. The Extreme Series Train Horn for Milwaukee® 18v Battery runs on the same M18™ packs many tradespeople already carry, and it is rated at 150 dB. That is exactly why it stays silent inside the five boroughs.
If you mainly want a horn to take places, the portable line covers the dual-trumpet (130 dB) and quad-trumpet (140 dB) tiers across most major tool-battery platforms.
FAQ
Is it illegal to have a train horn on my truck in NYC?
The Noise Code bans using it, not owning it. Section 24-237(b) prohibits operating an air horn installed on a motor vehicle, so the hardware can stay on the truck as long as you never sound it inside the city.
Can I use a train horn in NYC in an emergency?
Not under the plain text. The danger exception in §24-237(a) applies to a claxon, meaning a normal car horn. The air-horn ban in §24-237(b) has an exception only for authorized emergency vehicles under §24-241. Use your factory horn to warn people.
Can a noise camera ticket me for a train horn?
Yes, that's possible. DEP says its noise cameras enforce horn honking under §24-237(a) as well as muffler noise and loud vehicle music. The summons goes to the registered owner and is heard at OATH, with penalties from $350 up to $3,000 including default.
Does Admin Code 24-233 ban air horns?
No. Section 24-233 covers personal audio devices, such as stereos that can be heard 25 feet away. The air-horn ban is §24-237(b).
Do the NYC rules apply on Long Island or in Westchester?
No. The Noise Code covers only the five boroughs. Outside them, state law and local ordinances apply; see our train horn legality overview for how states handle horns.