Davis County, UT Noise Ordinances: Vehicle Noise (2026)
Key Facts
- Light vehicles (<=10,000 lbs)
- 80 dB(A) max
- Heavy vehicles (>10,000 lbs)
- 88 dB(A) max
- Measurement distance
- 25 feet from vehicle
- Muffler
- Required, good working order
- Layton stereo limit
- Plainly audible 50 feet
Summary
Bountiful City Code 13-1-117 caps motor-vehicle noise: 80 dB(A) for vehicles rated 10,000 lbs or less and 88 dB(A) for those over 10,000 lbs, measured 25 feet away. Every vehicle must keep a working muffler. Layton also targets booming car stereos plainly audible 50 feet away.
Any motor vehicle with a manufacture GVWR rating of 10,000 lbs or less, shall not emit a sound pressure level to exceed 80dB(A), when the emitted sound is measured by a sound level meter at a distance of 25 feet (7.5m) from the near side of the nearest land being monitored.
Full Breakdown
Davis County vehicle-noise limits are set by city codes, with Bountiful's being the most specific. Bountiful City Code 13-1-117 makes it unlawful to operate a motor vehicle emitting a sound level over 80 dB(A) for vehicles with a GVWR of 10,000 lbs or less, or over 88 dB(A) for vehicles over 10,000 lbs, measured by a sound level meter 25 feet from the vehicle at a height of at least four feet. It also requires a muffler or sound-dissipating device in good working order and constant operation; emergency vehicles are exempt. Layton (Ord. 08-20) targets car sound systems that are plainly audible 50 feet or more from the device on public rights-of-way.
Violations & Fines
City code violation; loud stereos in Layton are a class B misdemeanor. Missing/defective muffler prohibited.
Frequently Asked Questions
How loud can my car be in Bountiful?
Are loud car stereos illegal in Layton?
Sources & Official References
Other rules in Davis County
Compare Davis County to another location·View the Utah noise ordinances overview
See something wrong?
Help us keep this page accurate. If you notice an error or outdated information, let us know.