Baltimore County has no leaf-blower-specific ban or hour restriction in its code. Gas leaf blowers must comply with Maryland's COMAR noise limits, which cap noise at 65 dBA daytime and 55 dBA nighttime at a residential property line, effectively restricting use to daytime hours.
The county code contains no dedicated leaf-blower ordinance, so the general noise rules apply. Because a leaf blower is powered equipment (not 'domestic noise' from human activity), it is governed by Maryland COMAR 26.02.03: at a residential receiving property, noise may not exceed 65 dBA daytime (7 a.m.–10 p.m.) or 55 dBA at night (10 p.m.–7 a.m.). Gas blowers commonly exceed the nighttime limit, so use is practically confined to daytime. Individual municipalities in the county may impose their own leaf-blower hour or equipment restrictions.
Exceeding the COMAR dB limit can prompt Maryland Department of the Environment enforcement and abatement orders.
Other ordinances people look up for this city. Green dot = verified primary-source excerpt.
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See how Baltimore County's leaf blower rules rules stack up against other locations.
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