Aiken County, SC Noise Ordinances: Vehicle Noise (2026)
Key Facts
- Horn/signal noise
- § 15-22(10)(c)
- Muffler requirement
- § 15-22(10)(d)
- Out-of-repair vehicle noise
- § 15-22(10)(e)
- Emergency vehicle exception
- Horns for danger warning allowed
- First-offense fine
- $200-$300 or 30 days jail
- Complaint contact
- Aiken County Sheriff's Office
Summary
Aiken County Code § 15-22(10)(c)-(e) bans unnecessary horn honking, unmuffled engine or exhaust noise, and vehicles so out of repair or loaded that they rattle or grind loudly on any street or public or private place. Each is a declared noise nuisance enforceable under Chapter 15's misdemeanor penalties.
c.The sounding of any horn or signaling device on any automobile, motorcycle, or other vehicle on any street or public or private place of the county for an unnecessary or unreasonable period of time, or with such volume as to create any unreasonably loud or harsh sound; provided that the prohibitions of this subsection shall not apply to the sounding of any horn or signaling device when used as a danger warning; and further provided that authorized emergency vehicles may use warning sounds at any time.d.The discharge into the open air within the county of the exhaust of any steam engine, gasoline engine, stationary internal combustion engine, or other kind or type of engine, motor boat, or motor vehicle, except through a muffler or other device that will effectively prevent loud or explosive noises therefrom.e.The use within the county of any wagon, cart, automobile, truck, motorcycle, or other vehicle, so out of repair or loaded in such manner or with material of such nature as to create loud or irritating, grating, grinding, rattling, or other noises.
Official source re-checked September 7, 2026: no newer edition of the code had been published (publisher’s edition: Code of Ordinances: Supplement 119).
Full Breakdown
Three separate clauses of § 15-22(10) target vehicle noise. for an unnecessary or unreasonable period of time, or with such volume as to create any unreasonably loud or harsh sound,' while still allowing horns used as a danger warning and letting authorized emergency vehicles sound warnings at any time. Subsection (d) requires every steam engine, gasoline engine, motorboat or motor vehicle discharged into the open air to run 'through a muffler or other device that will effectively prevent loud or explosive noises,' covering straight-piped exhausts and removed mufflers alike.
Subsection (e) separately reaches vehicles that are simply 'so out of repair or loaded in such manner or with material of such nature as to create loud or irritating, grating, grinding, rattling, or other noises,' regardless of whether the exhaust system itself is modified. Any of these violations is prosecuted the same way as other subsection (10) noises: a resident can complain directly to the Aiken County Sheriff's Office under § 15-25 without needing five neighbors to join, the sheriff or code enforcement issues one written thirty-day warning under § 15-26, and a repeat violation by the same driver or owner goes straight to a summons in magistrate's court under § 15-27.
Violations & Fines
A first conviction for illegal horn use, an unmuffled exhaust, or a vehicle rattling from disrepair is a misdemeanor carrying a $200 to $300 fine or up to thirty days in jail under § 15-30(1). A second or later offense raises the fine to $400 to $500 and/or up to thirty days under § 15-30(2).
Frequently Asked Questions
Is it illegal to remove a muffler in Aiken County?
Can I be cited for honking my horn too long in Aiken County?
Does a rattling, poorly maintained truck violate Aiken County's noise rules?
Sources & Official References
Other rules in Aiken County
Compare Aiken County to another location·View the South Carolina noise ordinances overview
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