Des Moines, IA Noise from Specific Sources: Low-Frequency Bass Limits (2026)
Key Facts
- Daytime limit
- Detectable at 50 feet is illegal
- Nighttime limit
- Detectable at 25 feet is illegal
- Daytime hours
- 7 a.m. to 7 p.m.
- Nighttime hours
- 7 p.m. to 7 a.m.
- Covers
- Cars, RVs, watercraft, vessels
Summary
Des Moines bans car stereo bass or vibration clearly detectable 50 feet away during the day, tightening to 25 feet after 7 p.m., under Municipal Code Section 42-259(d), enforced by community development and police.
No person operating or in control of a motor vehicle, recreational vehicle, watercraft, or vessel shall operate or permit the operation of a sound system in the vehicle so as to produce a vibration or sound that is clearly detectable at a distance of 50 feet from the vehicle between the hours of 7:00 a.m. and 7:00 p.m. or clearly detectable at a distance of 25 feet from the vehicle between the hours of 7:00 p.m. to 7:00 a.m.(e)No person operating or in control of a garbage truck or other motor vehicle engaged in the business of solid waste collection, shall use such vehicle to pick up or empty a dumpster or other container used for the collection or storage of solid at any location in, or within 150 feet of, a zoning district or portion of a PUD district that includes a residential use, between the hours of 7:00 p.m. and 6:00 a.m. the following morning, subject to the following:(1)Trash pickup at elementary and secondary schools and hospitals is exempt from this requirement.(2)The city manager or the city manager's designee may grant an exception to this limitation on the timing of trash pickup where such exception is necessary to avoid an unreasonable risk of harm created by the unusual circumstances of the site. Any such exception may be subject to reasonable conditions imposed to minimize the detrimental impact of granting such exception, and shall be subject to reconsideration in the event of changed circumstances. (O.14,746, 14,752, 14,976, 15,969)
Official source re-checked September 7, 2026: no newer edition of the code had been published (publisher’s edition: Code of Ordinances: Supplement 38 Update 1).
Full Breakdown
Section 42-259(d) of the Des Moines Municipal Code bars anyone operating a motor vehicle, recreational vehicle, watercraft, or vessel from running a sound system that produces a vibration or sound clearly detectable 50 feet away between 7 a.m. and 7 p.m., or 25 feet away between 7 p.m. and 7 a.m. This rule targets thumping bass from car audio systems and applies on public streets and private property citywide. It is separate from the vehicle noise-limit table in the same section, which sets dBA caps by vehicle weight and speed. Violations are enforced by the community development and police departments under Section 42-263.
Violations & Fines
A first offense is a simple misdemeanor or municipal infraction, punishable by criminal or civil penalty under Des Moines Municipal Code Section 1-15; police and community development can also impound the sound source.
Frequently Asked Questions
Does this cover bass from a parked car?
What's the penalty for a booming car stereo in Des Moines?
Sources & Official References
Other rules in Des Moines
Compare Des Moines to another location·View the Iowa noise from specific sources overview
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