Noise Ordinances in Gaithersburg, MD (2026)
9 verified noise ordinances for Gaithersburg, Maryland, sourced directly from the municipal code and official government pages.
Verified from official government sources
Quiet Hours
Gaithersburg enforces noise regulations under City Code Chapter 15 and Montgomery County Code Chapter 31B. Noise that is plainly audible beyond property boundaries during nighttime hours may result in violations. The city follows county-level enforcement standards with additional municipal protections for residential zones.
Gaithersburg Quiet Hours & Noise Ordinance
Some RestrictionsConstruction Hours
Gaithersburg limits construction noise to daytime hours consistent with Montgomery County regulations. Residential construction is generally permitted Monday through Saturday with restrictions on early morning, evening, and Sunday work. Special permits may extend hours for large projects along the I-270 corridor.
Gaithersburg Construction Noise Hours
Some RestrictionsBarking Dogs
Gaithersburg addresses barking dog complaints through City Code Chapter 15 noise provisions and Montgomery County animal control regulations. Dogs that bark continuously for extended periods and disturb neighbors may trigger enforcement action through Montgomery County Animal Services.
Gaithersburg Barking Dog Noise Rules
Some RestrictionsLeaf Blower Rules
Montgomery County Bill 35-20 bans gas-powered leaf blowers countywide effective January 1, 2025, which applies within Gaithersburg. Only battery-electric and corded-electric leaf blowers are permitted. This is one of the most aggressive leaf blower regulations in the Mid-Atlantic region.
Gaithersburg Leaf Blower Rules & Gas Blower Ban
Heavy RestrictionsAmplified Music & Events
Gaithersburg regulates amplified music under City Code Chapter 15 and Montgomery County Code Chapter 31B. Amplified sound that is plainly audible beyond property lines during nighttime hours is prohibited. Special event permits are available for festivals at Bohrer Park, the Kentlands, and other public venues.
Gaithersburg Amplified Music & Sound Regulations
Some RestrictionsAircraft Noise
Gaithersburg does not regulate aircraft noise at the municipal level as aviation is governed by the FAA. However, proximity to Montgomery County Airpark and the Dulles/BWI flight paths creates community noise exposure. Maryland Aviation Administration and FAA handle aircraft noise complaints.
Gaithersburg Aircraft Noise Information
Few RestrictionsIndustrial Noise
Gaithersburg limits industrial noise under Montgomery County Code Chapter 31B with specific decibel standards for industrial and commercial zones. The I-270 biotech corridor and research facilities must comply with noise limits at the boundary of adjacent residential zones.
Gaithersburg Industrial Noise Regulations
Some RestrictionsDecibel Limits
Montgomery County Code Chapter 31B sets specific decibel limits for Gaithersburg based on zoning and time of day. Residential zones are limited to 65 dBA daytime and 55 dBA nighttime. Commercial and industrial zones have higher thresholds. Enforcement uses calibrated sound-level meters at the receiving property line.
Gaithersburg Decibel Limits by Zone
Some RestrictionsOutdoor Music
Outdoor music in Gaithersburg must comply with noise ordinance decibel limits at property boundaries. Live and recorded music outdoors during nighttime hours faces stricter limits. The city hosts regulated outdoor music at venues like Bohrer Park and the Kentlands Arts Barn with permitted sound levels.
Gaithersburg Outdoor Music Regulations
Some RestrictionsLooking for Montgomery County county-wide rules?
County ordinances apply to unincorporated areas and may supplement Gaithersburg city rules.
Noise Ordinances in Montgomery County →