Florissant, MO Noise Ordinances: Amplified Music & Outdoor Sound (2026)
Amplified music rules in Florissant, MO, also called sound permit, PA system, or live music ordinances, set decibel limits, time-of-day restrictions, and when permits are required.
Key Facts
- Governing section
- § 210.750(B)(3) and (B)(17)
- Enacted by
- Ord. No. 6274, 7-12-1999
- Announcer rule
- In-person only, no mechanical amplification
- Sound trucks
- Commercial advertising trucks barred outright
- Penalty
- Up to $1,000 fine / 3 months jail (§ 100.080)
Summary
Florissant bars using loudspeakers, sound amplifiers or similar devices to cast advertising sound onto public streets unless legally authorized, and lets an announcer speak in person over a loudspeaker only without any mechanical amplification device.
Loudspeakers, amplifiers, etc., for advertising. The using, operating or permitting to be played, used or operated any radio receiving set, musical instrument, phonograph, loudspeaker, sound amplifier or other machine or device for the producing or reproducing of sound which is cast upon the public streets for the purpose of commercial advertising or attracting the attention of the public to any building or structure unless otherwise legally authorized. Announcements over loudspeakers can only be made by the announcer in person and without the aid of any mechanical device. ... Sound trucks. The use of mechanical loudspeakers or amplifiers on trucks or other moving or standing vehicles for advertising or other commercial purposes; the use of sound trucks for non-commercial purposes during such hours or in such places or with such volume as would constitute such use a public nuisance.
Official source re-checked September 7, 2026: no newer edition of the code had been published (publisher’s edition: rev 4989395; v43 updated 2026-05-26; through 05-26-2026).
Full Breakdown
750(B)(3) of the Florissant Code of Ordinances targets loudspeakers and amplifiers used for advertising. It is unlawful to use, operate or permit the operation of a radio receiving set, musical instrument, phonograph, loudspeaker, sound amplifier or other sound-producing device to cast sound upon the public streets for the purpose of commercial advertising or to attract public attention to a building or structure, unless otherwise legally authorized. The section also restricts live announcements: announcements made over loudspeakers can only be delivered by the announcer speaking in person, without the aid of any mechanical device, closing off the workaround of pre-recording an amplified pitch.
A related clause at (B)(17) covers sound trucks specifically, barring mechanical loudspeakers or amplifiers mounted on trucks or other moving or standing vehicles used for advertising or commercial purposes, and treating non-commercial sound truck use as a public nuisance if the hours, location or volume are excessive. 750 noise ordinance (Ord. No. 6274, adopted July 12, 1999), so the general list of nuisance factors, such as volume, intensity, duration and proximity to residences, also applies when the City evaluates a complaint. 080: up to a $1,000 fine, up to three months in the City or County Jail, or both, with continuing violations charged day by day.
Violations & Fines
Casting amplified advertising sound onto public streets, or running an advertising sound truck, without authorization violates Section 210.750(B)(3) and (B)(17). With no dedicated penalty in the noise chapter, the Section 100.080 general penalty applies: up to $1,000 in fines and up to three months in jail, per offense.
Frequently Asked Questions
Can a business use a loudspeaker to advertise on a Florissant street?
Are advertising sound trucks legal in Florissant?
What is the penalty for illegal amplified advertising sound in Florissant?
Sources & Official References
Other rules in Florissant
Compare Florissant to another location·View the Missouri noise ordinances overview
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