Trenton, NJ Noise Ordinances: Vehicle Noise (2026)
Key Facts
- Governing section
- § 167-2, Subsections D-F
- Exhaust rule
- Must discharge through an effective muffler
- Horn rule
- No unreasonably loud, harsh or prolonged sounding
- Enforcing agency
- Trenton Police Department
- Max fine
- Up to $2,000 per § 1-17
Summary
Trenton bans exhausts, horns and mufflers that emit loud or unnecessary noise from any vehicle on city streets. The Noise chapter treats unmuffled exhausts and unreasonably loud or prolonged horn use as separate violations, each punishable under the city's general penalty schedule.
D. Horns, signaling devices. The sounding of any horn or warning device on any automobile, motorcycle, bus or other vehicle, except when required by law or when necessary to give timely warning of impending danger to persons driving other vehicles or to persons upon the street; as well as the sounding of any horn or warning device on any automobile, motorcycle, bus or other vehicle which shall emit an unreasonably loud or harsh sound, or for any unnecessary or unreasonable period of time. E. Exhausts. The discharge into the open air of the exhaust of any steam engine, stationary jet or internal combustion engine, or motor vehicle except through a muffler or other device which will effectively prevent loud or explosive noises therefrom.
Official source re-checked September 7, 2026: no newer edition of the code had been published (publisher’s edition: rev 4853025; v21 updated 2025-12-16; through 12-16-2025).
Full Breakdown
" Subsection E bars discharging engine or motor vehicle exhaust into the open air except through a muffler or other device that effectively prevents loud or explosive noises. Subsection D separately prohibits sounding a horn or warning device except when legally required or needed to warn of danger, and independently bans any horn or warning device that emits an unreasonably loud or harsh sound or that sounds for an unnecessary or unreasonable period of time. Subsection F extends the rule to any vehicle so out of repair, so loaded, or operated so as to create loud and unnecessary grating, grinding, rattling or other noise, calling out hill grades specifically.
These provisions sit alongside § 167-1's general nuisance-noise declaration, which independently makes it unlawful to cause noises that are so harsh, prolonged or unusual as to occasion physical discomfort or injure the health, peace and comfort of city inhabitants. Enforcement runs through the city's Police Department, and the chapter does not carve out a separate schedule of dollar amounts for noise offenses, instead relying on Chapter 1's general penalty provision.
Violations & Fines
A conviction under Chapter 167 is punished under Chapter 1, Article III, General Penalty: a fine up to $2,000, up to 90 days in the county jail, up to 90 days of community service, or a combination, at the Municipal Judge's discretion. Each day a violation continues can be charged as a separate offense under § 1-18.
Frequently Asked Questions
Is a loud aftermarket exhaust illegal in Trenton?
Can I get cited for honking too long?
What happens if my car is just old and noisy?
Sources & Official References
Other rules in Trenton
Compare Trenton to another location·View the New Jersey noise ordinances overview
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