Macomb County, MI Noise Ordinances: Vehicle Noise (2026)
Key Facts
- Governing law
- MCL 257.707 (state)
- County ordinance
- None; state statute
- Muffler cutouts
- Prohibited
- Enforced by
- Sheriff and local police
Summary
Vehicle noise in Macomb County is governed by Michigan state law, not a county ordinance. MCL 257.707 requires every motor vehicle, including motorcycles and mopeds, to have a working muffler and bans muffler cutouts.
A motor vehicle, including a motorcycle or moped, shall at all times be equipped with a muffler in good working order and in constant operation to prevent excessive or unusual noise and annoying smoke.
Full Breakdown
Macomb County does not set its own vehicle-noise standard; loud vehicles are enforced under the Michigan Vehicle Code by county sheriff's deputies and local police. MCL 257.707(1) requires a muffler in good working order and constant operation to prevent excessive or unusual noise, and prohibits removing muffler baffles or using a muffler cutout or bypass on a motorcycle or moped. Related sections (MCL 257.707c) set maximum decibel readings that vary by posted speed limit. Modified exhausts, loud aftermarket pipes, and 'straight pipes' are the typical targets. Local townships may add their own vehicle-noise provisions, but the statewide muffler rule applies uniformly across Macomb County.
Violations & Fines
A muffler or exhaust-noise violation under MCL 257.707 is a civil infraction; officers may also cite excessive-decibel readings under MCL 257.707c, with fines set by state law.
Frequently Asked Questions
Are loud exhausts illegal in Macomb County?
Does Macomb County have its own vehicle-noise law?
Sources & Official References
Other rules in Macomb County
Compare Macomb County to another location·View the Michigan noise ordinances overview
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