Guilford County, NC Noise Ordinances: Vehicle Noise (2026)
Key Facts
- Car-stereo presumption
- Audible/felt 30 ft or more away
- Horns
- Only as danger signal or as required
- Exhaust
- Muffler must prevent loud noise
- Tires/engine
- No screeching, grinding, rattling
- Governing section
- Sec. 11-8(b)(1),(3),(5),(7)
Summary
Guilford County Code Sec. 11-8 bans loud car stereos, blaring horns, screeching tires and defective exhaust. A vehicle sound system is presumed illegal if audible or felt 30 feet or more away, and exhaust must pass through a muffler that prevents unnecessary noise.
A presumption is created that the sound thus created is unreasonably loud, annoying, disturbing and unnecessary if the sound generated or noise vibration therefrom is audible or can be felt at a distance of thirty (30) feet or more from the... device that is producing the sound.
Full Breakdown
Sec. 11-8(b) enumerates several vehicle noises: sounding a horn or signal device longer than reasonable except as a danger signal (b)(1); playing a vehicle sound system on a street, parking lot or residence in an unreasonably loud manner, presumed a violation if audible or its vibration felt 30 feet or more away (b)(3); operating a vehicle so as to create grating, grinding, rattling or tire screeching (b)(5); and discharging engine exhaust except through a muffler that prevents unnecessary noise (b)(7). These apply in unincorporated Guilford County; state motor-vehicle law also governs exhaust equipment.
Violations & Fines
Sheriff or designee may warn, then impose Sec. 11-8 civil penalties of $200/$400/$500 for repeat offenses within a year; Class 3 misdemeanor also possible.
Frequently Asked Questions
Is a loud car stereo illegal in Guilford County?
Are modified exhausts allowed?
Sources & Official References
Other rules in Guilford County
Compare Guilford County to another location·View the North Carolina noise ordinances overview
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