Quiet hours in Baltimore County, MD — also called the noise ordinance, nighttime noise rules, or residential quiet time — define the hours during which excessive noise is prohibited.
Baltimore County's noise law (County Code § 17-3-103) sets no fixed clock-hour quiet time. It bans domestic noise that 'unreasonably disturbs' neighbors at any hour. Numeric nighttime limits come from Maryland COMAR: 55 dBA in residential zones from 10 p.m. to 7 a.m.
Baltimore County Code, Article 17, Title 3 prohibits domestic noise that unreasonably disturbs neighboring inhabitants, using a reasonableness standard rather than a fixed curfew. Maryland's statewide environmental noise rule (COMAR 26.02.03) supplies the numbers: at a residential receiving property, noise may not exceed 65 dBA during daytime (7 a.m.–10 p.m.) or 55 dBA at nighttime (10 p.m.–7 a.m.). The stricter 55 dBA nighttime cap functions as the enforceable 'quiet hours' limit. Police enforce the county domestic-noise rule; the Maryland Department of the Environment enforces the COMAR dB standards.
Police may issue a civil citation for a domestic-noise violation under § 17-3-103, with a civil penalty not exceeding $500.
Other ordinances people look up for this city. Green dot = verified primary-source excerpt.
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See how Baltimore County's quiet hours rules stack up against other locations.
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