Amplified music rules in Mountain View, CA — also called sound permit, PA system, or live music ordinances — set decibel limits, time-of-day restrictions, and when permits are required.
Amplified music from speakers, DJs, and live bands requires compliance with decibel limits and quiet hours; Shoreline Amphitheatre operates under a separate use permit with its own noise conditions.
Mountain View regulates amplified music under Chapter 21 noise ordinance provisions. Residential properties must keep amplified sound below 55 dBA daytime and 45 dBA nighttime measured at the property line. Commercial venues such as Castro Street restaurants and bars need special permits for outdoor amplified music and must close amplification by 10pm Sunday through Thursday and 11pm Friday and Saturday. Shoreline Amphitheatre, the major concert venue operated in partnership with Live Nation, operates under a specific conditional use permit allowing concerts to continue past normal quiet hours but with capped sound levels monitored at fixed perimeter points. Unpermitted outdoor amplification can be abated immediately by responding officers.
Contact your local code enforcement office for specific penalty information.
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Side-by-side rule comparisons with other cities in Santa Clara County.
See how other cities in Santa Clara County handle amplified music & events.
See how Mountain View's amplified music & events rules stack up against other locations.
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