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...vehicle in or on which it is located shall be prima facie evidence of a violation of this section.(e)Exhausts. The discharge...of any...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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