Amplified music rules in Whatcom County, WA — also called sound permit, PA system, or live music ordinances — set decibel limits, time-of-day restrictions, and when permits are required.
Bellingham treats audio audible beyond 50 feet as a public disturbance, a common issue near Western Washington University. County events must meet WAC 173-60 limits; large gatherings may carry permit conditions.
In Bellingham, portable audio, such as speakers or radios, that carries more than 50 feet off your property is a public disturbance noise, no decibel meter required. It's a frequent flashpoint in the student neighborhoods around Western Washington University. Amplified music at unincorporated county events must stay within WAC 173-60 property-line limits (55 dBA day, 45 dBA night residential). Outdoor festivals and commercial venues typically carry permit conditions on sound. A private backyard party needs no permit but still must not disturb neighbors, especially after 10 p.m.
Bellingham: first offense a civil infraction up to $250; repeat offenses a misdemeanor up to $1,000 or 90 days. County noise beyond WAC limits is enforced on complaint.
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