What is the residential decibel limit in Great Falls, MT?

Daytime limit: 55 dB(A) (7:00 a.m. to 8:00 p.m.) at property line. Nighttime limit: 50 dB(A) (8:00 p.m. to 7:00 a.m.) at property line. Noise is measured at 25 feet from the source or property line, whichever is greater. Motorized vehicles have specific limits: Trucks/Buses over 10,000 lbs: 82 dB(A) at 50ft; under 10,000 lbs, Passenger Cars, Motorcycles, Snowmobiles, Minibikes: 74 dB(A) at 50ft.

Who do I call for a noise complaint in Great Falls, MT?

For non-emergencies, contact the police at 406-771-1180. For code violations, contact Code Enforcement at 406-455-8574 (Private Property Complaints), 406-771-1401 (Public Right-of-Way).

Great Falls, MT Noise Ordinance

Quiet Hours: Construction/repair work is unlawful between 8:00 p.m. and 7:00 a.m.. General property noise limits apply from 8:00 p.m. to 7:00 a.m..

Residential Decibel Limit: 55 dB(A) (7:00 a.m. to 8:00 p.m.) at property line (Day) / 50 dB(A) (8:00 p.m. to 7:00 a.m.) at property line (Night)

Summary: Great Falls, MT noise ordinances, primarily Chapter 53 of Title 8, prohibit excessive and unusually loud noises that disturb public comfort or safety. Specific decibel limits apply to construction (e.g., 55dB(A) day, 50dB(A) night), vehicles, and general property noise, varying by time and location. Violations can result in misdemeanor charges, fines up to $500, or jail time.

Local Noise Laws

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