Noise from Specific Sources in Somerville, MA

If you live in Somerville 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. Somerville has 4 specific rules on the books covering different aspects of noise from specific sources, and some of them might surprise you.

HVAC & Mechanical Noise

Running refrigeration or air conditioning machinery loud enough to create a noise disturbance is unlawful in Somerville. Section 9-116(1) singles out air compressors and rotating or reciprocating equipment, enforced by police and Inspectional Services.

Key details: Governing section: Sec. 9-116(1), Code of Ordinances. Standard: Air compressors/AC creating a noise disturbance. Enforcement basis: Noncriminal disposition, M.G.L. c. 40 § 21D. Enforcing officials: Police chief, Inspectional Services superintendent. Related decibel table: Sec. 9-117, by district and time of day.

The chief of police, the superintendent of Inspectional Services, and their designated agents enforce Chapter 9's noise provisions through noncriminal disposition under Massachusetts General Laws Chapter 40, Section 21D. Each violation is treated as a separate offense, and fines follow the Section 1-11 general penalty schedule. Property owners can also seek equitable relief in court, which the ordinance says does not preclude other lawful enforcement.

Car Alarm Limits

A vehicle alarm that sounds more than ten minutes in an hour is a public nuisance in Somerville, and police may tow the car to shut it off. Section 9-116(5) also makes owners liable for towing and deactivation costs.

Key details: Governing section: Sec. 9-116(5), Code of Ordinances. Threshold: Alarm sounding over 10 minutes/hour = nuisance. Remedy: Police may deactivate alarm or tow vehicle. Cost liability: Owner pays deactivation, towing, storage costs. Violation unit: Each 10-minute interval is a separate offense.

Enforcement runs through the chief of police, the superintendent of Inspectional Services, and their agents under noncriminal disposition per Massachusetts General Laws Chapter 40, Section 21D, with fines set by the Section 1-11 general penalty schedule. Each ten-minute interval of continued sounding is a distinct offense, so a single incident can generate multiple citations, plus the vehicle owner owes towing and deactivation costs if police have to intervene.

This is one of the stricter rules in Somerville's municipal code. If you are unsure whether your situation complies, it is worth checking with the city before proceeding.

Delivery Truck Noise

Somerville bans loud loading and unloading, the crash of dumpster lids, crates, and delivery boxes, between 7:00 p.m. and 7:00 a.m. citywide. Sec. 9-116(11) targets exactly the noise a delivery truck or trash pickup makes outside a store or apartment building overnight, enforced the same as any other noise disturbance.

Key details: Restricted hours: 7:00 p.m. to 7:00 a.m.. Covers: Boxes, crates, dumpsters, building materials. Standard: No fixed decibel number, disturbance-based. Fine: $300 per offense (Sec. 1-11). Enforcement: Police & Inspectional Services (Sec. 9-118).

A loading or unloading noise disturbance between 7:00 p.m. and 7:00 a.m. is enforced as a noncriminal citation by police or inspectional services, carrying the $300 Sec. 1-11 fine per offense. A store or hauler that keeps making overnight deliveries after a citation faces a new $300 fine for each additional night the disturbance recurs.

Generator Noise

Running a stationary generator, compressor, or other combustion engine outdoors in Somerville without an effective muffler violates Sec. 9-116(7) the moment the exhaust noise disturbs a neighbor. The rule treats portable and standby generators the same way it treats vehicle engines, and fines flow through the city's noncriminal citation process.

Key details: Covers: Stationary & portable generators, compressors. Requirement: Muffler preventing loud/explosive noise. Standard: No fixed decibel number, disturbance-based. Fine: $300/offense, each day separate. Enforcement: Police & Inspectional Services (Sec. 9-118).

Operating a generator or other stationary engine without an effective muffler is cited as a noncriminal offense by police or inspectional services, carrying the Sec. 1-11 penalty of $300 per offense. Because the code treats each day of continued excessive discharge as a new offense, running an unmuffled generator through a multi-day power outage can generate a fine for every day it runs past the point a neighbor complains.

The Bottom Line

Somerville'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 Somerville is broadly strict or permissive.

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