10 county-level rules, plus city-specific rules for 1 city in Cumberland County, Maine.
Verified from official government sources
Cumberland County does not publish a county code and has no county-level quiet-hours rule. Quiet hours in Cumberland County are set by each of its 28 municipalities (Portland, South Portland, Westbrook, Scarborough, etc.) under home-rule authority, on top of the statewide disorderly-conduct floor at 17-A MRS § 501-A.
Cumberland County does not regulate construction hours. Each of the 28 municipalities sets its own permitted construction window by ordinance under 30-A MRS § 3001 home-rule authority, and the statewide disorderly-conduct law (17-A MRS § 501-A) applies to construction noise that is 'loud and unreasonable.'
Cumberland County has no barking-dog ordinance. Maine law at 7 MRS § 3950 lets each of the county's 28 municipalities adopt or retain more stringent barking-dog rules, but explicitly exempts dogs engaged in herding livestock or agricultural guard dogs from any such municipal ordinance.
Cumberland County has no leaf-blower ordinance and no county code of ordinances at all. Any restriction on leaf-blower hours, decibel limits, or gas-versus-electric use is set by individual municipalities under 30-A MRS § 3001 home-rule authority. Statewide, the 17-A MRS § 501-A disorderly-conduct floor still applies.
Cumberland County does not regulate amplified music. Amplified-sound permits, decibel caps, and outdoor-music windows are set by each of the 28 municipalities. Statewide, 17-A MRS § 501-A makes 'loud and unreasonable noise' — including amplified sound — a Class E crime in a public place, or in a private place after police order cessation.
Cumberland County has no aircraft-noise ordinance. Aircraft operation noise is exclusively federally preempted by the FAA under 49 U.S.C. § 40103, with Portland International Jetport (PWM) noise abatement procedures handled by the FAA and the City of Portland (jetport operator).
Cumberland County has no industrial-noise ordinance. Industrial and stationary-source noise is regulated by municipal performance standards in each of the 28 cities and towns under Maine home-rule authority (Me. Rev. Stat. tit. 30-A § 3001), with Maine DEP enforcing site-license noise conditions under 38 MRS § 484.
Cumberland County does not set decibel limits. Numeric dB(A) caps exist only in municipal codes within the County (Portland, South Portland, Westbrook, etc.). Statewide there is no general decibel standard — Me. Rev. Stat. tit. 17-A § 501-A uses the qualitative "loud and unreasonable noise" test.
Cumberland County has no amplified-sound or outdoor-music ordinance. Outdoor concerts, bar patios, and amplified events are regulated by each municipality's noise/special-event code. Events of 2,000+ persons lasting 12+ hours require a state mass-gathering permit from Maine DHHS under Me. Rev. Stat. tit. 22 § 1601.
Cumberland County has no vehicle-noise ordinance. Vehicle exhaust and muffler noise is regulated statewide by the Maine Motor Vehicle Inspection Manual under Me. Rev. Stat. tit. 29-A § 1751 (mandatory annual inspection) and tit. 29-A § 1912 (mufflers required, no excessive noise). Cumberland County Sheriff and municipal police enforce on traffic stops.
1 cities in Cumberland County have their own noise ordinances rules. Each link goes to that city's dedicated page with code citations.
See every category we cover for Cumberland County — parking, noise, fences, fires, animals, pools, and more.
Cumberland County Ordinance Hub →