Noise Ordinance in Maryland (MD)
Maryland has moderate enforcement of noise regulations. Maryland has a statewide noise statute that sets baseline standards. Cities may adopt stricter local ordinances. The typical residential nighttime noise limit is 55 dB, with quiet hours from 10:00 PM to 7:00 AM. Fines for violations range from $100-$1,000.
Noise Regulations in Maryland
Overview
Maryland Environment Article 3-401 authorizes the Dept. of the Environment to set statewide noise standards; the actual numeric limits are codified at COMAR 26.02.03. Baltimore and Montgomery County have their own distinct local rules.
Residential Noise Limits
In Maryland, the typical residential noise limit is 65 dB during the day and 55 dB at night. These limits are measured at the property line of the receiving property using the A-weighted decibel scale (dBA). Some jurisdictions within Maryland use a "plainly audible" standard instead of or in addition to specific decibel measurements.
Quiet hours — the period when stricter nighttime limits apply — run from 10:00 PM to 7:00 AM in most Maryland jurisdictions. During these hours, activities that generate noise above the nighttime limit may result in a citation. Exemptions typically apply to emergency services, emergency repairs, and certain agricultural operations.
Construction Noise
Construction in Maryland is generally permitted from 7:00 AM to 10:00 PM on weekdays. Some cities allow Saturday construction with shorter hours (often 8:00 AM to 5:00 PM), while Sunday and holiday construction is typically prohibited in residential areas. Emergency construction and utility repairs are usually exempt from time restrictions.
Fines and Penalties
Noise ordinance violations in Maryland typically carry fines ranging from $100-$1,000. First-time offenders usually receive a warning or the minimum fine. Repeat offenders face escalating penalties. In some jurisdictions, chronic noise violations can be classified as misdemeanors, and equipment generating the noise may be subject to seizure. Commercial establishments that repeatedly violate noise codes may face license suspension or revocation.
State Law
Maryland has a statewide noise statute that establishes baseline noise standards. This law sets maximum permissible noise levels by zone classification and time of day. Cities and counties within Maryland may adopt stricter standards than the state baseline, but they cannot be more lenient. The state environmental or health department typically enforces industrial and commercial noise standards, while local law enforcement handles residential noise complaints.
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City Noise Ordinances in Maryland
The following table shows noise ordinance details for 4 cities in Maryland. City-level rules may be stricter than the state standard. Click the city name for specific details.
| City | Day Limit | Night Limit | Quiet Hours | Notes |
|---|---|---|---|---|
| Baltimore | 55 dB | 50 dB | 9:00 PM - 7:00 AM | Baltimore City Health Code, Title 9 (Noise Regulation), not 'Article 9': §9-206 sets the residential zone's own property-line limit at 55 dBA, reduced a further 5 dBA (to ~50 dBA) between 9 PM and 7 AM under §9-207. Dedicated noise enforcement unit. |
| Annapolis | 60 dB | 50 dB | 10:00 PM - 7:00 AM | Annapolis has noise provisions for the downtown entertainment area. |
| Frederick | 65 dB | 55 dB | 10:00 PM - 7:00 AM | Frederick follows state noise standards with local nuisance provisions. |
| Rockville | 65 dB | 55 dB | 10:00 PM - 7:00 AM | Rockville Ordinance 12-22 expressly adopts Montgomery County Code Chapter 31B as the city's own noise law (minus a refuse-collection carve-out), so Rockville's limits match the county/state standard — 65 dBA day / 55 dBA night — not stricter. |
How to Handle Noise Issues in Maryland
- Document everything: Keep a log of noise incidents including dates, times, duration, and type of noise. Record audio or video if possible.
- Talk to your neighbor first: Many noise issues can be resolved with a polite conversation. Your neighbor may not realize they are causing a disturbance.
- File a complaint: Contact your local non-emergency police line or 311 service. Have your noise log available when you call.
- Know your rights: The noise limits in your area are enforceable by law. Repeat violations can result in fines of $100-$1,000 in Maryland.
- Consider mediation: Many cities offer free mediation services for neighbor disputes, which can be faster and less adversarial than enforcement.
- State law applies: Maryland has statewide noise standards, giving you a baseline of protection regardless of your specific municipality's code.
States with Similar Noise Enforcement
These states have the same enforcement level as Maryland (Moderate Enforcement):
| State | Night Limit | Quiet Hours | Fines | State Law? |
|---|---|---|---|---|
| Maryland (MD) | 55 dB | 10:00 PM - 7:00 AM | $100-$1,000 | Yes |
| Georgia (GA) | No dB limit | 11:00 PM - 7:00 AM | $100-$1,000 | No |
| Michigan (MI) | No dB limit | 10:00 PM - 7:00 AM | $100-$500 | No |
| Missouri (MO) | No dB limit | 10:00 PM - 7:00 AM | $100-$500 | No |
| North Carolina (NC) | No dB limit | 11:00 PM - 7:00 AM | $100-$500 | No |
| Ohio (OH) | No dB limit | 10:00 PM - 7:00 AM | $100-$500 | No |
Need More Information?
Use our noise ordinance lookup tool to quickly check any state or city's rules, or browse all 50 states + DC to compare noise ordinances across the country. Remember: noise rules vary by specific jurisdiction. Contact your local code enforcement office for the most current regulations in your area.