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location_onGaithersburg, MD
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Gaithersburg, MD
Noise Ordinance Overview

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Official Decibel Limits

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Residential Day
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Residential Night
55dB

"Montgomery County's noise control law establishes a 55 dBA limit at the residential receiving property line during quiet hours. For amplified sound, 55 dBA is the limit at the receiving property line in a residential zone. A 'noise disturbance' is unlawful at any time."

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AI Executive Summary

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Gaithersburg, MD, adheres to the Montgomery County Noise Control Law (Chapter 31B). This ordinance prohibits noise disturbances, with quiet hours generally from 9 PM to 7 AM on weekdays and 9 PM to 9 AM on weekends/holidays, during which noise cannot exceed 55 dBA at residential property lines. Construction noise is capped at 75 dBA.

Specific Noise Restrictions

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Construction

Construction noise must not exceed 75 dBA. Higher decibel levels may be permitted under an approved Noise Suppression Plan.

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Amplified Sound

Operating a radio, television, or other electronic sound-producing device is unlawful if the sound exceeds 55 dBA at the receiving property line in a residential noise zone.

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Animals

Allowing an animal to create a noise disturbance is illegal. For nuisance complaints such as barking dogs, call 301-279-8000 and press 2.

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Vehicles

Noises associated with motorized vehicles on public roadways are regulated under the State Motor Vehicle Code by the Police, and are not subject to enforcement under the Montgomery County Noise Control Law.

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