Costa Mesa, CA Noise Ordinances: Amplified Music & Outdoor Sound (2026)
Amplified music rules in Costa Mesa, CA, also called sound permit, PA system, or live music ordinances, set decibel limits, time-of-day restrictions, and when permits are required.
Key Facts
- Minimum truck speed while amplifying
- 10 mph, § 9-140(a)
- Buffer from hospitals/schools/churches
- 100 yards, § 9-140(b)
- Permitted sound
- Music or speech only, § 9-140(c)
- Blackout hours
- 1:00-3:00 p.m. daily, § 9-140(d)
- Max permit length
- 30 days, § 9-140(e)
- Penalty
- Infraction up to $500 or misdemeanor $1,000
Summary
Costa Mesa limits amplified sound equipment mounted on advertising sound trucks under Section 9-140: the truck must be moving at least 10 mph while the amplifier runs, sound is banned within 100 yards of hospitals, schools, churches and city hall, and no permit can authorize operation between 1:00 p.m. and 3:00 p.m. or run longer than 30 days.
Sound amplifying equipment shall not be operated unless the sound truck upon which equipment is mounted is operated at a speed of or at least 10 miles per hour, except when said truck is stopped or impeded by traffic. Where stopped by traffic, the said sound amplifying equipment shall not be operated for longer than one minute at each stop. Sound shall not be issued within 100 yards of hospitals, schools, churches, courtrooms, county buildings or the city hall. The only sounds permitted are music or human speech. The sound trucks shall be operated only on those streets or boulevards designated by the city council in the permit and shall not be operated between the hours of 1:00 p.m. and 3:00 p.m.; except on Sundays and legal holidays, no operation shall be authorized unless the city council has determined upon competent evidence that in the individual case, different hours of operation would be justified, then such permit shall set forth said different hours of operation. No permit for the operation of a sound truck shall exceed 30 days.
Full Breakdown
Article 4 of Title 9 regulates sound trucks, meaning vehicles operating with sound-amplifying equipment for advertising, separately from the exterior decibel limits set elsewhere in the noise chapter. Section 9-140(a) requires the truck to be moving at a speed of at least 10 miles per hour whenever the amplifying equipment is on, except when stopped or impeded by traffic, and even then the equipment can run for no more than one minute at each stop. Section 9-140(b) bans sound from the truck within 100 yards of hospitals, schools, churches, courtrooms, county buildings or city hall.
Section 9-140(c) limits the content to music or human speech only, no other sounds. , except that the council can set different hours for Sundays and holidays if presented with competent evidence justifying the change. Section 9-140(e) caps every sound truck permit at 30 days unless the council receives evidence justifying a longer initial term or a later extension after a hearing. Because a sound truck permit falls under the businesses the police chief may approve without a council hearing when there's no objection, listed in Section 9-130, an applicant whose route draws no protest can get approval administratively rather than waiting for a council vote.
Violations & Fines
Article 4 does not set its own fine, so violating the sound truck rules is enforced through Costa Mesa's citywide penalty scheme in Section 1-33: an infraction with fines up to $100 for a first offense, $200 for a second within a year, and $500 for later offenses, or prosecution as a misdemeanor carrying a fine up to $1,000 and up to six months in jail. Operating amplifying equipment outside the designated streets or the 1:00-3:00 p.m. blackout, or beyond the permit's 30-day term, are each separately chargeable.
Frequently Asked Questions
How fast must a Costa Mesa sound truck be moving to use its amplifier?
When can't a sound truck run in Costa Mesa?
How long does a Costa Mesa sound truck permit last?
Sources & Official References
Other rules in Costa Mesa
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