Spokane enforces vehicle noise under SMC 16A.61 (traffic) and state RCW 46.37.390 muffler requirements. Modified exhausts, engine braking, and loud stereos in vehicles are common citations.
Washington RCW 46.37.390 requires all motor vehicles to be equipped with a muffler in constant operation and prohibits cutouts, bypasses, or similar devices. Spokane adopts these provisions through SMC 16A.61 and adds a local prohibition on vehicle sound systems audible 50 feet from the vehicle. Engine braking (Jake brakes) is prohibited on certain posted truck routes within city limits. Aftermarket exhausts that exceed 95 dBA measured at 20 inches may be cited even during daytime. Washington State Patrol and Spokane Police both enforce on major corridors including I-90, Division Street, and Sprague Avenue.
Muffler violation is a traffic infraction, typically 136 dollars. Sound amplification infraction is around 124 dollars. Repeat offenses may require vehicle inspection.
Other ordinances people look up for this city. Green dot = verified primary-source excerpt.
Spokane, WA
Spokane has no municipal ordinance limiting lawn ornaments, statues, or yard art on private property. HOA architectural guidelines under RCW 64.38 apply in m...
Spokane, WA
Spokane has no municipal ordinance limiting inflatable holiday decorations on private property. HOA architectural rules under RCW 64.38 apply in master-plann...
Spokane, WA
Spokane has no municipal ordinance limiting holiday lights on private residential property. Restrictions come from HOA architectural rules under Washington's...
Spokane, WA
Permanent outdoor kitchens in Spokane require building, plumbing, electrical, and/or gas permits under SMC Chapter 17F.040 (which adopts the International Re...
Spokane, WA
Spokane treats outdoor smokers as open-flame cooking devices under International Fire Code 308.1.4 as adopted in SMC Chapter 17F.080. Multifamily balcony 10-...
Spokane, WA
Spokane adopts the International Fire Code under SMC Chapter 17F.080. IFC 308.1.4 prohibits open-flame cooking on combustible balconies or within 10 feet of ...
See how Spokane's vehicle noise rules stack up against other locations.
Help us keep this page accurate. If you notice an error or outdated information, let us know.