King County and Washington state limit unnecessary diesel idling, particularly near schools, hospitals, and Metro bus bases, to protect air quality in the central Puget Sound airshed.
Washington Administrative Code 173-422A and county fleet policies cap diesel truck and bus idling at five minutes in most situations, with longer allowances only for safety, defrosting, or active loading. King County Metro and Public Health Seattle & King County run anti-idling programs at school zones and transit centers. The Puget Sound Clean Air Agency enforces regional idling rules and investigates complaints about idling commercial vehicles.
Violations of WAC 173-422A diesel idling rules can result in Puget Sound Clean Air Agency civil penalties, with notices first and escalating fines for repeat or commercial offenders.
Other ordinances people look up for this city. Green dot = verified primary-source excerpt.
Auburn, WA
Federal law preempts local aircraft noise. Auburn Municipal Airport follows FAA Part 150 and Sea-Tac overflights are under FAA and Port of Seattle. ACC 8.28 ...
Auburn, WA
Industrial sources into residential zones are capped at 60 dBA day and 50 dBA night under WAC 173-60 via ACC 8.28. The Boeing Auburn plant and Valley warehou...
Auburn, WA
Outdoor concerts and festivals must meet ACC 8.28 limits and often need a special event permit. Downtown Auburn and Les Gove Park events follow a written noi...
Auburn, WA
Auburn applies WAC 173-60 EDNA limits through ACC 8.28. Residential: 55 dBA day, 45 dBA night. Industrial receiving: 60 dBA day, 50 dBA night. Measured at th...
Auburn, WA
Auburn restricts RV, trailer, and boat parking on public streets to 72 hours and sets additional limits on driveway and front-yard storage of recreational ve...
Auburn, WA
Auburn does not impose a citywide overnight parking ban, but enforces the 72-hour rule, signed time-limited zones, and no-parking signs at parks, trailheads,...
Side-by-side rule comparisons with other cities in King County.
See how Auburn's vehicle idling restrictions rules stack up against other locations.
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