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Maryland noise rules

The Baltimore page below is taken from that city's own code. It lists its sources and the date we checked them.

What does Maryland law say about noise?

Home limits
Maryland regulation COMAR 26.02.03.02 limits noise at a residence to 65 dBA by day and 55 dBA at night. Daytime is 7 a.m. to 10 p.m. Nighttime is 10 p.m. to 7 a.m. Those hours are defined in COMAR 26.02.03.01.
Construction
Construction and demolition may reach 90 dBA during the day. At night they have to meet the same limits as other noise.

Source: COMAR 26.02.03.02, Environmental noise standards, COMAR 26.02.03.01, Definitions. City rules are usually more specific, so check your city's page too.

Cities in Maryland

Baltimore, MD9 p.m. to 7 a.m., when residential decibel limits drop by 5 dB(A). Power tools and home vehicle repair: weekdays 7 a.m. to 9 p.m., weekends and holidays 10 a.m. to 10 p.m.

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