Skagit County, WA Noise from Specific Sources: Delivery Truck Noise (2026)

040(2)(g) is the county's specific rule for delivery and commercial-truck refrigeration noise. It makes it a public disturbance noise violation for sound from a refrigeration unit on a commercial vehicle, or from the vehicle's engine when used to run that refrigeration unit, to be audible on residential property at a distance greater than 150 feet, once the vehicle has been stationary for longer than 30 minutes. The 30-minute stationary threshold and 150-foot distance test both must be met before the rule applies, so a short delivery stop that keeps the reefer unit running briefly is not, by itself, a violation.

040(2), the provision only reaches sound that unreasonably disturbs or interferes with the peace, comfort, and repose of a property owner. 040(1) bars any property's sound from exceeding the levels set in Chapter 173-60 WAC, the state's maximum environmental noise standard, so a refrigeration unit could violate the county code on WAC grounds even inside 150 feet or in under 30 minutes. 040(3) for essential utility work and emergency activity do not cover routine refrigerated freight idling.