Montgomery County regulates industrial and commercial noise under Chapter 31B with decibel limits at property boundaries. Industrial zones adjacent to residential areas face stricter standards. The Department of Environmental Protection conducts noise monitoring for persistent complaints.
MoCo Code Chapter 31B establishes noise standards for industrial and commercial operations, particularly where they adjoin residential zones. The county uses property-line decibel measurements to determine compliance, with lower limits applied when industrial or commercial sound crosses into residential areas. Continuous noise from HVAC systems, generators, compressors, loading docks, and manufacturing equipment must comply with both daytime and stricter nighttime standards. The Department of Environmental Protection conducts noise monitoring using calibrated equipment when chronic complaints are received. Montgomery County zoning regulations under Chapter 59 also address noise as part of conditional use approvals for industrial and commercial operations near residential zones. The I-270 technology corridor and areas around White Flint, Germantown, and Shady Grove have seen noise complaints from data centers and mixed-use developments. Maryland Environment Article Title 3 provides state-level authority that supplements county enforcement.
Industrial noise violations under Chapter 31B: civil citations with fines up to $1,000 per day. Persistent violations may result in injunctive relief or conditional use revocation.
Montgomery County, MD
Montgomery County Code §31-14 prohibits parking heavy commercial vehicles (over 10,000 lbs, 21+ ft, 8+ ft high) on public residential roadways. One light com...
Montgomery County, MD
Abandoned vehicles in Montgomery County are subject to state and county law. MD Transportation Code §25-201+ defines abandonment; county can tag and tow vehi...
Montgomery County, MD
Maryland has no shared fence cost statute. Each owner responsible for their own fence. Spite fence provision under MD RP Art. §14-120.
Montgomery County, MD
Montgomery County prohibits barbed wire, razor wire, and electric fences in residential zones under Ch 59. HOAs commonly restrict chain-link fencing. Approve...
Montgomery County, MD
Maryland’s Tracey’s Law (2014) treats all dog breeds equally under negligence standard. No breed-specific strict liability. Dangerous dogs behavior-based.
Montgomery County, MD
Montgomery County requires dogs on leash in public. Off-leash in designated parks only. Rabies vaccination required statewide. MD Criminal Law §10-619 covers...
See how Montgomery County's industrial noise rules stack up against other locations.
Help us keep this page accurate. If you notice an error or outdated information, let us know.