Miami-Dade County, FL Noise Ordinances: Vehicle Noise (2026)
Key Facts
- Governing section
- § 21-28(4)(b), (e)
- Stereo standard
- Audible 100 ft, 11 p.m.–7 a.m.
- Max penalty
- $500 fine or 60 days jail
- Scope
- Countywide unless city has own rule
Summary
Miami-Dade County bars playing a vehicle stereo loud enough to be heard 100 feet away between 11 p.m. and 7 a.m., and requires every vehicle exhaust to run through an effective muffler.
(b) Radios, televisions, phonographs, etc. The [...] operation of any such set, instrument, phonograph, machine or device between the hours of 11:00 p.m. and 7:00 a.m. in such manner as to be plainly audible at a distance of one hundred (100) feet from the building, structure, vessel, floating structure, or vehicle in or on which it is located shall be prima facie evidence of a violation of this section. [...] motor vehicle except through a muffler or other device which will effectively prevent unreasonably loud or explosive noises therefrom.
Official source re-checked September 7, 2026: no newer edition of the code had been published (publisher’s edition: Code of Ordinances: Supplement 135).
Full Breakdown
Section 21-28(4) of the county noise code makes it prima facie evidence of a violation to play a car radio, stereo or phonograph loudly enough to be plainly audible 100 feet from the vehicle between 11:00 p.m. and 7:00 a.m., and separately requires every motor vehicle exhaust to discharge through a muffler or device that effectively prevents unreasonably loud or explosive noise. The rule applies in both incorporated and unincorporated Miami-Dade County: the County enforces it in unincorporated UMSA and in any city that has not adopted its own noise ordinance, while cities with their own regulations enforce those instead.
Violations & Fines
Playing a car stereo audible 100 feet away between 11 p.m. and 7 a.m., or driving with an exhaust missing an effective muffler: fines up to $500, up to 60 days jail, or both.
Frequently Asked Questions
Does this apply inside cities like Miami or Hialeah?
Is a loud aftermarket exhaust illegal?
Sources & Official References
Other rules in Miami-Dade County
Florida rules heatmap·Compare Miami-Dade County to another location·View the Florida noise ordinances overview
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