1 county-level rule, plus city-specific rules for 1 city in Hampden County, Massachusetts.
Verified from official government sources
Hampden County has no operational county government - it was abolished July 1, 1998 under M.G.L. c. 34B §1 - so there is no countywide noise ordinance. Massachusetts has no statewide decibel limit either; quiet hours are set by each city/town. The state baseline is 310 CMR 7.10 (MassDEP air pollution control regulation), which prohibits unnecessary noise emissions and treats sound exceeding ambient by 10+ dB at the property line as a violation. In Hampden County's largest cities, Springfield Code Ch. 270 sets quiet hours from 11:00 p.m. to 7:00 a.m., Holyoke Code Ch. 7.5 prohibits unreasonable noise 10:00 p.m. to 7:00 a.m., and Chicopee Code Ch. 195 sets the period 11:00 p.m. to 7:00 a.m.
Mass. Gen. Laws ch. 40, § 21 - By-laws of towns; purpose (including noise control authority)
For controlling and abating noise from whatever source, including, without limiting the generality of the foregoing, the right to restrict or limit the use of automobile horns and the operation of motor vehicles in such a manner as to cause excessive noise.
1 cities in Hampden County have their own noise ordinances rules. Each link goes to that city's dedicated page with code citations.
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Hampden County Ordinance Hub →