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Bay County, MI Noise Ordinances: Vehicle Noise (2026)

Some Restrictions
Compiled from the official code textEditor Martyn O'NeillLast verified September 2026

Key Facts

Horn use
Danger warning only (§62.003(a))
Banned device type
Exhaust-operated horns or whistles
Banned use
Sounding horn because traffic is held up
Muffler requirement
All engine exhaust must be muffled (§62.003(g))
Maximum penalty
$100 fine and/or 90 days jail

Summary

Bay County limits car and motorcycle horns to danger warnings only, bans engine-exhaust-operated horns and whistles, and requires every steam, motor, or motorboat engine's exhaust to run through a functioning muffler to prevent loud or explosive noise.

These county ordinances apply to unincorporated areas of Bay County. Incorporated cities within the county may have their own rules that take precedence over county-level regulations.

(a)Horns, signaling devices, etc. The sounding of any horn or signaling device on any automobile, motorcycle or other vehicle on any street or public place of the County, except as a danger warning; the creation by means of any such signaling device of any unreasonably loud or harsh sound; and the sounding of any such device for an unreasonable unnecessary period of time. ... (g)Exhausts. The discharge into the open air of the exhaust of any steam engine, stationary internal combustion engine, motor boat or motor vehicle, except through a muffler or other device which will effectively prevent loud or explosive noises therefrom.

Full Breakdown

003(a)). The ordinance also bars any signaling device that isn't hand- or electricity-operated, any horn or whistle operated by engine exhaust, and sounding a horn simply because traffic is held up. 003(g)). 003(o)). 001).

Violations & Fines

Sounding a horn other than as a danger warning, running an exhaust-operated horn, or driving with an unmuffled or defective exhaust is a misdemeanor: a fine of up to $100, imprisonment for up to 90 days, or both, with each day of continued violation a separate offense (Bay County Code of Ordinances § 62.005).

Frequently Asked Questions

When can I legally sound my car horn in Bay County?
Only as a danger warning. Bay County Code of Ordinances § 62.003(a) makes any other use of a horn or signaling device unlawful, including an unreasonably loud or harsh sound or sounding it because traffic is held up.
Are loud aftermarket exhausts or mufflers legal?
No. Section 62.003(g) requires exhaust from any motor vehicle, motor boat, or internal combustion engine to discharge through a muffler or other device that effectively prevents loud or explosive noise.
What's the penalty for a horn or exhaust noise violation?
It's a misdemeanor under § 62.005: a fine of up to $100, imprisonment for up to 90 days, or both, with each day of continued violation charged as a separate offense.

Sources & Official References

Other rules in Bay County

All Bay County rules

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