Amplified music rules in Downey, CA — also called sound permit, PA system, or live music ordinances — set decibel limits, time-of-day restrictions, and when permits are required.
Downey prohibits amplified music that exceeds ambient noise levels by more than 5 dBA at the property line. Quiet hours from 10 PM to 7 AM carry stricter limits.
DMC Section 4602 specifically prohibits radios, phonographs, and similar sound devices that are audible at 50 feet between 10 PM and 7 AM. Section 4603 addresses loudspeakers and amplifiers used for advertising purposes. Section 4604 regulates outdoor paging systems. The general noise prohibition in Section 4600 covers all noise that annoys, disturbs, injures, or endangers the comfort, repose, health, peace, or safety of others. The 100 dB prima facie threshold applies to all noise sources including amplified music.
Police respond to amplified music complaints. Citations may be issued as misdemeanors. The prima facie violation threshold is 100 dB at 25 feet.
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Side-by-side rule comparisons with other cities in Los Angeles County.
See how other cities in Los Angeles County handle amplified music & events.
See how Downey's amplified music & events rules stack up against other locations.
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