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Ann Arbor, MI Noise Ordinances: Amplified Music & Outdoor Sound (2026)

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

Amplified music rules in Ann Arbor, MI, also called sound permit, PA system, or live music ordinances, set decibel limits, time-of-day restrictions, and when permits are required.

Key Facts

Vehicle sound system limit
Not clearly audible more than 50 feet away
Loudspeaker hours
7:00 a.m. to 10:00 p.m., noncommercial spoken words
Vehicle loudspeaker permit
Specific permit from the City Council
Night curfew
10:00 p.m. to 7:00 a.m. if clearly audible off property
Article I fine
$50.00 to $500.00 plus costs
Temporary exemption
City Administrator, up to 30 days

Summary

Ann Arbor, Michigan (Washtenaw County) limits amplified sound in two ways. Under City Code § 9:390, no one may run an electronically amplified sound system in a parked or moving motor vehicle so it is clearly audible more than 50 feet away. Section 9:365(3) confines noncommercial loudspeaker use to 7:00 a.m. to 10:00 p.m.

(3)Operation or use, for any noncommercial purpose, of any loud-speaker, sound amplifier, public address system, or similar device to amplify spoken words between 7:00 a.m. and 10:00 p.m. This exemption applies to the use or operation of mechanical loud-speakers on or from motor vehicles only if a specific permit for the activity has been granted by the City Council. ... (d)Parades, concerts, festivals, fairs or similar activities subject to any sound limits in the approval by the city. ... No person operating or in control of a parked or moving motor vehicle (including motorcycles and mopeds) shall operate, or permit the operation of, an electronically amplified sound system in or on the vehicle so as to produce sound that is clearly audible more than 50 feet from the vehicle, except as permitted under sections 9:365(3), 9:366, and 9:367.

View official code

Official source re-checked September 7, 2026: no newer edition of the code had been published (publisher’s edition: Code of Ordinances: Supplement 26 Update 4).

Full Breakdown

Vehicle sound systems. Section 9:390, in Article III (General Provisions) of Chapter 119, Noise Control, says no person operating or in control of a parked or moving motor vehicle, including motorcycles and mopeds, shall operate or permit the operation of an electronically amplified sound system in or on the vehicle so as to produce sound clearly audible more than 50 feet from the vehicle. The text reaches a parked vehicle as well as a moving one. Its only exceptions are the ones in sections 9:365(3), 9:366 and 9:367.

Loudspeakers. Section 9:365(3) exempts, from the sound level limits of § 9:364, the operation or use for any noncommercial purpose of a loud-speaker, sound amplifier, public address system or similar device to amplify spoken words between 7:00 a.m. and 10:00 p.m. For mechanical loud-speakers on or from motor vehicles the exemption applies only if the City Council has granted a specific permit. Council shall issue it when it finds that the applicant has a noncommercial message that cannot be effectively communicated by other available means, that the applicant will limit use to times, locations and sound levels that will not unreasonably disturb the public peace, and that the applicant will not use the equipment in residential areas between 10:00 p.m. and 7:00 a.m.

Events and concerts. Section 9:366(1)(d) exempts parades, concerts, festivals, fairs and similar activities from the § 9:364 limits, subject to any sound limits in the approval by the city. Paragraph (e) exempts athletic, musical or cultural events, including practices and rehearsals, conducted by or under the auspices of public or private schools and public or private colleges or universities. Section 9:367 lets the City Administrator grant a written temporary exemption, for no more than 30 days, stating the dB(A) levels authorized.

Night curfew. Under § 9:363, operating or playing a radio, television, phonograph, drum or musical instrument, or using a loudspeaker, sound amplifier or public address system, between 10:00 p.m. and 7:00 a.m. is unlawful when clearly audible beyond the property line, even if the level is at or below the § 9:364 figure.

Violations & Fines

The § 9:390 text prints no penalty of its own. Violations of Article I, such as using a sound amplifier between 10:00 p.m. and 7:00 a.m. under § 9:363 or exceeding Table I under § 9:364, are punishable under § 9:370 by a fine of $50.00 to $500.00 plus costs. A second offense within 2 years carries $100.00 to $500.00 plus costs. Third and subsequent offenses carry $200.00 to $500.00 plus costs and, at the court's discretion, up to 240 hours of community service.

Frequently Asked Questions

How loud can my car stereo be in Ann Arbor?
Under § 9:390, the sound from an electronically amplified system in or on a parked or moving motor vehicle, including a motorcycle or moped, must not be clearly audible more than 50 feet from the vehicle. The only exceptions are the loudspeaker permit in § 9:365(3), the general exemptions in § 9:366 and temporary exemptions under § 9:367.
Do I need a permit to use a loudspeaker on a vehicle for a protest or campaign?
Yes. Section 9:365(3) applies to mechanical loud-speakers on or from motor vehicles only if the City Council has granted a specific permit. Council shall issue it on findings that the message is noncommercial and cannot be effectively communicated by other means, that use will be limited to times, locations and levels that do not unreasonably disturb the public peace, and that residential use stops between 10:00 p.m. and 7:00 a.m.
Does a festival or concert in Ann Arbor have a decibel cap?
Section 9:366(1)(d) exempts parades, concerts, festivals, fairs and similar activities from the § 9:364 limits, subject to any sound limits in the approval by the city. So the number that binds is the one written into the city's approval. School and university events are exempt under § 9:366(1)(e).
When must amplified music stop at night?
Between 10:00 p.m. and 7:00 a.m., § 9:363 prohibits operating or playing a radio, television, phonograph, drum or musical instrument, and using any loudspeaker, sound amplifier, public address system or similar device, if the sound is clearly audible beyond the property line of the property where it is conducted. That rule applies even when the level is at or below the Table I figure.

Sources & Official References

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