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Boston, MA
Noise Ordinance Overview

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Official Decibel Limits

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Residential Day
70dB
Residential Night
50dB

"Unreasonable or excessive noise is defined as exceeding 50 dBA between 11 PM and 7 AM or 70 dBA at all other hours, measured at the lot line of a residential lot or nearest affected dwelling unit. The Air Pollution Control Commission also regulates noise in business and industrial districts, but specific general day/night decibel limits for commercial establishments are not explicitly provided in the same manner as for residential areas."

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AI Executive Summary

Gemini AI

Boston, MA noise ordinances, under City of Boston Municipal Code Section 16-26 and Air Pollution Control Commission Regulations, prohibit unreasonable or excessive noise. Decibel limits are 50 dBA between 11 PM and 7 AM, and 70 dBA at all other times, measured at residential lot lines. Construction is restricted to weekdays from 7 AM to 6 PM.

Specific Noise Restrictions

construction

Construction

General construction, demolition, alteration, repair, and excavation are permitted only between 7 AM and 6 PM on weekdays. Construction devices emitting noise over 50 dBA at a residential lot line are unlawful between 6 PM and 7 AM. Construction devices producing over 86 dBA at 15 meters (50 feet) are generally unlawful, with exceptions for emergency work.

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Amplified Sound

It is unlawful to operate loud amplification devices in motor vehicles (whether moving or standing in a public way), in public ways or places, or in or on residential premises if they create unreasonable or excessive noise (exceeding 50 dBA between 11 PM and 7 AM, or 70 dBA at other hours).

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Animals

No person owning or harboring a dog shall allow it to be so unreasonably noisy as to disturb the peace. Massachusetts also has nuisance dog laws that can be invoked by citizen petition.

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Vehicles

Operation of loud amplification devices in motor vehicles is prohibited. Automobile safety devices (car alarms) that are plainly audible at 200 feet and do not automatically terminate within five minutes are unlawful. Selling or installing modified exhaust systems that amplify noise is prohibited. Motorcycles manufactured after December 31, 1982, must bear a Federal EPA exhaust system label.

Noise Protection Score

BGood

How well does Boston protect residents from noise?

Decibel Limits13/25

70 dB day / 50 dB night

Quiet Hours15/25

Standard coverage

Penalties18/25

Standard fines

Coverage25/25

4 noise categories regulated

compare_arrowsCompare Another CityScore: 71/100 — Based on dB limits, quiet hours, penalties, and ordinance breadth

Frequently Asked Questions

What are the quiet hours in Boston, MA?

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Boston's quiet hours: 11 PM - 7 AM. During these hours, noise must stay below residential nighttime decibel limits at the property line. Violations can result in fines on the first offense.

What are the noise decibel limits in Boston?

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Boston's residential noise limits: 70 dBA (7 AM - 11 PM) dB(A) during the day and 50 dBA (11 PM - 7 AM) dB(A) at night. Commercial zones allow Not specified. Limits are measured at the receiving property line.

How do I file a noise complaint in Boston?

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Call the Boston police non-emergency line at 311. For ongoing violations, contact code enforcement at 311 (Inspectional Services Department). Have the address, noise type, and duration ready. You can request to remain anonymous.

What is the fine for a noise violation in Boston?

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Boston's noise violation penalties: Violations of prohibitions against loud amplification devices (subsections 16-26.7, 16-26.8, or 16-26.9) incur fines of $50 for the first offense, $100 for the second, and $200 for the third and subsequent offenses within a 12-month period. Refusal to provide information or providing false information results in an additional $100 fine. Other violations of Section 16-26 carry fines of $100 for the first offense, $200 for the second, and $300 for the third and subsequent offenses within a 12-month period. Landlords permitting repeated violations after notice face fines of $150 for the third violation and $300 for each subsequent violation. Modified vehicle exhaust systems have fines ranging from $100 to $1,000 for repeat offenses, and motorcycle exhaust label violations are $300. Unreasonable noise from automobile safety devices carries a $50 fine. The first violation of the general noise bylaw can be up to $100.. Fines typically escalate with repeat offenses and may result in misdemeanor charges for chronic violations.

What are the dog barking rules in Boston?

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Boston's rules: No person owning or harboring a dog shall allow it to be so unreasonably noisy as to disturb the peace. Massachusetts also has nuisance dog laws that can be invoked by citizen petition.. To report a barking dog, contact animal control at 617-635-5348 or the police non-emergency line.

When can construction work start in Boston?

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Boston's construction noise rules: General construction, demolition, alteration, repair, and excavation are permitted only between 7 AM and 6 PM on weekdays. Construction devices emitting noise over 50 dBA at a residential lot line are unlawful between 6 PM and 7 AM. Construction devices producing over 86 dBA at 15 meters (50 feet) are generally unlawful, with exceptions for emergency work.. Violations can be reported to code enforcement, which can issue stop-work orders for unpermitted or off-hours construction.

Are there rules about loud music in Boston?

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Yes. Boston's ordinance: It is unlawful to operate loud amplification devices in motor vehicles (whether moving or standing in a public way), in public ways or places, or in or on residential premises if they create unreasonable or excessive noise (exceeding 50 dBA between 11 PM and 7 AM, or 70 dBA at other hours).. Music exceeding residential decibel limits or plainly audible across property lines during quiet hours is a citable violation.

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