Noise from Specific Sources in Cambridge, MA

If you live in Cambridge or are thinking about moving there, noise from specific sources are one of those things you probably won't think about until they affect you directly. Cambridge has 3 specific rules on the books covering different aspects of noise from specific sources, and some of them might surprise you.

Car Alarm Limits

A car alarm in Cambridge must shut off within 10 minutes and not sound again within the hour, or the owner faces a $100 fine per violation under Municipal Code § 8.16.080.J.3, and police can have a persistently sounding alarm shut off or the vehicle towed.

Key details: Auto-shutoff requirement: Within 10 minutes. Cannot re-sound within: One hour. Fine: $100 per 10-minute violation. Governing section: Municipal Code § 8.16.080.J.3. Remedy: Police-arranged shutoff or towing.

Each 10-minute interval a car alarm sounds beyond the initial 10 minutes is a separate $100 violation under Section 8.16.080.J.3.b, on top of the general noise citation and misdemeanor exposure in Section 8.16.040(C). A vehicle sounding more than 10 minutes in an hour can be towed at the registered owner's expense after police attempt to contact the owner, per Section 8.16.080.J.3.d.

Bar & Nightclub Noise

A Cambridge bar or club violates the Noise Control Ordinance if its music or sound system is plainly audible 50 feet from the venue, or at all inside a marked noise sensitive zone, under Municipal Code § 8.16.080.H, regardless of a decibel meter reading.

Key details: Audibility threshold: Plainly audible at 50 feet. Governing section: Municipal Code § 8.16.080.H. License risk: Suspension/revocation possible. Fine per violation: $300 per day.

Each violation supports a $300-per-day citation under G.L. c. 40 § 21D, or a misdemeanor prosecution carrying a $300 fine under Section 8.16.040(C). Because the source is a licensed venue, enforcement officials can additionally suspend the entertainment or liquor license summarily, and revoke it after a hearing, under Section 8.16.040(E), on top of any fine or court injunction.

Delivery Truck Noise

Cambridge's Noise Control Ordinance bans loading and unloading of boxes, crates, containers, and garbage cans between 9 p.m. and 7 a.m. on weekdays, and between 9 p.m. and 9 a.m. before Saturdays, Sundays, or holidays, if the noise carries fifty feet from the lot line. The rule targets delivery-truck and hauler activity overnight.

Key details: Restricted hours (weekdays): 9:00 p.m. to 7:00 a.m.. Restricted hours (Sat/Sun/holiday): 9:00 p.m. to 9:00 a.m.. Audibility threshold: Plainly audible 50 feet from lot line. Fine per violation: $300 per day. Enforcing officials: Police Commissioner, ISD Commissioner, License Commission chair.

A first violation under § 8.16.040(C) draws a $300 citation issued under G.L. c. 40, § 21D, and each day the loading noise continues is a separate offense, so a business that keeps unloading at 5 a.m. every day racks up new $300 fines daily. Enforcement officials can also seek a court injunction against the offending operation, and may suspend or revoke a business, entertainment, or dumpster license tied to the property.

The Bottom Line

Cambridge's noise from specific sources rules are a mixed bag. Some areas are strict, others are relaxed, and the details matter. The best approach is to check the specific rule that applies to your situation rather than assuming Cambridge is broadly strict or permissive.

This guide is based on Cambridge's current municipal code. Local rules can and do change, so check the individual ordinance pages for the latest details, penalties, and FAQs.