Exhaust Noise in Washington
Vehicle type: Truck
Conditional
Washington limits exhaust noise to 95 dB for most vehicles with specific testing procedures. Modified exhaust systems cannot exceed original equipment sound levels.
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Frequently Asked Questions
Are exhaust noise legal in Washington?
Washington limits exhaust noise to 95 dB for most vehicles with specific testing procedures. Modified exhaust systems cannot exceed original equipment sound levels.
What are the exhaust noise limits in Washington?
Washington limits exhaust noise to 95 dB for most vehicles with specific testing procedures. Modified exhaust systems cannot exceed original equipment sound levels. For specific numeric limits and thresholds, see our full compliance report.
Are there exceptions for exhaust noise in Washington?
Yes, there may be exceptions and exemptions. Get the full details including medical exemptions and edge cases in our compliance report.