Outdoor music events in Cambridge require a one-day entertainment license from the License Commission, with end times typically capped at 10 PM on weeknights and 11 PM on weekends.
Outdoor music events in Cambridge, whether at a restaurant patio, private lot, or public space, require a one-day (or seasonal) entertainment license issued by the Cambridge License Commission. Applications must be filed at least 30 days in advance and include a site plan, sound management plan, and proof of neighborhood notification. The Commission typically imposes end times of 10 PM Sunday through Thursday and 11 PM Friday and Saturday. Volume caps are set based on proximity to residential uses; Harvard Square and Central Square venues often face stricter conditions. Amplified music audible more than 100 feet from the venue boundary can result in immediate shutdown. Larger festivals (Cambridge Carnival, Honk!, etc.) coordinate with the city through special event permitting that includes police and public works staffing requirements.
Contact your local code enforcement office for specific penalty information.
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