Amplified Music & Events: Camarillo vs Simi Valley
How do amplified music & events rules compare between Camarillo, CA and Simi Valley, CA?
Camarillo and Simi Valley have similar restriction levels.
Camarillo, CA
Ventura County
Amplified music in Camarillo is regulated by Chapter 10.34 of the Camarillo Municipal Code (CMC). The ordinance does not set a separate dBA limit for amplifiers — instead, any amplified source must keep total noise at the receiving property line below the zone-based exterior standard (55 dBA Leq daytime / 45 dBA Leq nighttime in residential Noise Zone II) plus a tiered cumulative-time allowance.
View full Camarillo rules →Simi Valley, CA
Ventura County
Simi Valley prohibits amplified music and sound equipment that creates noise audible beyond property boundaries during nighttime quiet hours. Daytime amplified sound must stay within residential decibel limits measured at the property line.
View full Simi Valley rules →Key Facts Comparison
| Fact | Camarillo | Simi Valley |
|---|---|---|
| Code Section | CMC Ch. 10.34 (Noise Regulations) | - |
| Residential Daytime Limit | 55 dBA Leq (7 a.m.–9 p.m.) | - |
| Residential Nighttime Limit | 45 dBA Leq (9 p.m.–7 a.m.) | - |
| Commercial Limit | 65 dBA Leq day / 55 dBA Leq night | - |
| Cumulative Rule | +5 dBA / 20 min, +10 dBA / 10 min, +15 dBA / 1 min | - |
| Permit Lead Time | 7+ days (Special Event Permit) | - |
| Permit Office | Community Development, 805-388-5360 | - |
| Max Fine | $1,000 + up to 6 months (misdemeanor) | - |
| Daytime Limit | - | 55 dBA at property line |
| Nighttime Limit | - | 45 dBA at property line |
| Quiet Hours Begin | - | 10 PM |
| Special Events | - | Permit required for outdoor amplified sound |
Highlighted rows indicate differences between cities.
Camarillo FAQ
How loud can amplified music be at a Camarillo backyard party?
Sound measured at the neighboring property line cannot exceed 55 dBA Leq between 7 a.m. and 9 p.m., or 45 dBA Leq between 9 p.m. and 7 a.m. Short bursts above those levels are allowed under CMC 10.34's tiered rule (up to +15 dBA for under one minute per hour), but anything above ambient + 5 dBA for more than 20 cumulative minutes per hour is a violation.
Do I need a permit for outdoor amplified music in Camarillo?
Yes — concerts, weddings, fundraisers and any event that will use amplified sound outdoors typically require a Special Event Permit filed with the Department of Community Development at least seven days before the event. Contact Planning at 805-388-5360 or planning@cityofcamarillo.org.
What happens if police are called for loud music in Camarillo?
Officers measure sound at the complainant's property line using an A-weighted meter and compare it to the CMC 10.34 standards. A first violation usually triggers a warning and an order to lower the volume; repeat or refusal-to-comply incidents are charged as misdemeanors under CMC 10.34 with administrative citations starting around $100 and rising for each subsequent violation in the same 12-month period.
Are car stereos covered by Camarillo's noise ordinance?
No — vehicles operated on a public highway, street or right-of-way are exempted from CMC 10.34 and are instead regulated by the California Vehicle Code, which bars amplified sound audible from 50 feet or more (Veh. Code §27007).
Simi Valley FAQ
Can I play loud music in my backyard in Simi Valley?
Yes, during daytime hours as long as noise does not exceed 55 dBA at your property line. After 10 PM, the limit drops to 45 dBA and any audible amplified music may constitute a violation.
Do I need a permit for a party with live music?
Outdoor events with amplified music may require a special event permit from the city. Indoor private gatherings generally do not need a permit but must comply with noise limits.
Can police shut down my party for noise?
Yes, officers can order immediate cessation of amplified music that exceeds noise limits or disturbs the peace, particularly during quiet hours after 10 PM.
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