Montgomery County, OH Noise Ordinances: Vehicle Noise (2026)
Key Facts
- State muffler law
- ORC 4513.221
- Dayton vehicle limit
- 80 dB(A) at 15 feet
- Amplified vehicle sound
- Barred if audible at 25 feet
- Modified exhaust
- Prohibited
- County-specific rule
- None; state + city apply
Summary
Ohio law requires every motor vehicle to have a working muffler and bans removing or disabling it. Dayton adds an 80 dB(A) motor-vehicle limit measured at 15 feet and bars amplified vehicle sound audible 25 feet away.
No person shall cause noise levels from the operation of motor vehicles in excess of 80 dB(A) in any area within the city at any time. Such noise level limit of 80 dB(A) shall be based on a distance of not less than 15 feet from the noise source.
Full Breakdown
Vehicle noise is governed by state law plus local codes; there is no separate county rule. Ohio Revised Code 4513.221 lets counties and townships require a factory or equivalent muffler in good working order and prohibit removing, disabling, or racing an engine to produce unusual exhaust noise. Dayton's code caps motor-vehicle noise at 80 dB(A) measured at least 15 feet from the source, bars defective or modified exhaust and rapid acceleration or tire squealing, and prohibits vehicle sound systems discernible 25 feet or more away. These rules apply throughout the county through state law and each city's ordinance.
Violations & Fines
Ohio muffler violations are minor misdemeanors. In Dayton, excessive vehicle sound-system noise (§ 94.12) starts as a minor misdemeanor, escalating to fourth- and third-degree misdemeanors on repeat offenses.
Frequently Asked Questions
Are loud exhausts illegal in Montgomery County?
Can I play my car stereo loudly?
Sources & Official References
Other rules in Montgomery County
Compare Montgomery County to another location·View the Ohio noise ordinances overview
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