Rockville, MD
Noise Code
The official quiet hours, decibel limits, and enforcement protocols for Rockville, MD.
Ordinance Summary
Rockville, MD, noise ordinances are primarily governed by Montgomery County's Chapter 31B and supplemented by Chapter 7 of the City Code. They establish specific decibel limits for residential and commercial areas during the day and night, alongside restrictions on construction, amplified sound, and other noise disturbances, enforced by the Department of Environmental Management and police.
Quiet Hours
Weekdays: 9 PM - 7 AM; Weekends and Holidays: 9 PM - 9 AM (general Montgomery County). Amplified sound from bars/restaurants: 10 PM - 7 AM (Rockville City).
Decibel Limits
"Limits apply at the receiving property line. If ambient noise exceeds the maximum allowable level, the standard is adjusted to ambient + 3 dBA."
Measure Noise Levels Instantly
Use our free browser-based decibel meter to check if your neighbors are violating the Rockville, MD code.
Specific Noise Restrictions
Permitted 7 AM - 7 PM weekdays and 9 AM - 5 PM weekends. Noise levels must not exceed 75 dBA, or 85 dBA if a noise-suppression plan is approved.
From bars or restaurants, must not exceed 60 dBA between 10 PM - 7 AM. Operating radios, televisions, or other electronic sound-producing devices exceeding 55 dBA at the residential receiving property line is illegal during quiet hours.
It is unlawful to allow an animal to create a noise disturbance, such as a barking dog.
Noises from motorized vehicles on public roadways are regulated under the State Motor Vehicle Code by the Police, not the Montgomery County Noise Control Law. Maryland and federal regulations establish a maximum sound limit of 80 decibels for vehicles.
Must not exceed an average sound level of 70 dBA at 50 feet. After July 1, 2024, gas-powered leaf blowers and vacuums may not be sold in Montgomery County, and after July 1, 2025, they may not be used.
Unlawful during 'quiet hours' if sound exceeds 55 decibels (Montgomery County).
Frequently Asked Questions
Quiet Hours?
Weekdays: 9 PM - 7 AM; Weekends and Holidays: 9 PM - 9 AM (general Montgomery County). Amplified sound from bars/restaurants: 10 PM - 7 AM (Rockville City)..
Construction?
Usually limited to daytime hours (e.g. 7am-6pm). Check 'Specific Restrictions' above.
Who to call?
Use Non-Emergency Police: 240-314-8900 (Rockville City); 301-279-8000 (Montgomery County for after-hours noise complaints).
Fines?
Commonly range from $50 to $500 for initial offenses.
Noise Solutions for Rockville, MD
SolvedBest Gear for Rockville, MD Residents
Ultrasonic Bark Control
Humane deterrent that emits a high-frequency sound when it detects barking.
Loop Quiet Ear Plugs
The "gold standard" for sleeping. Reduces noise by 24dB without the pain of foam plugs.
1/2" Thick Rug Pad
Essential for the "80% Rule." Adds density to rugs to absorb footfall impact noise for downstairs neighbors.
Hemp Calming Chews
Natural relief for dog anxiety. Perfect for separation anxiety barking or fear of fireworks.
ThunderShirt for Dogs
The best solution for anxiety-induced barking (fireworks, thunder, separation).
Marpac Dohm Classic
The original fan-based machine. Unlike digital loops, this creates real rushing air sound.
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