Exhaust Noise in Missouri
Vehicle type: Truck
Conditional
Missouri limits vehicle exhaust noise to 95 decibels measured at 20 inches from the exhaust outlet. All vehicles must have functioning mufflers.
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Frequently Asked Questions
Are exhaust noise legal in Missouri?
Missouri limits vehicle exhaust noise to 95 decibels measured at 20 inches from the exhaust outlet. All vehicles must have functioning mufflers.
What are the exhaust noise limits in Missouri?
Missouri limits vehicle exhaust noise to 95 decibels measured at 20 inches from the exhaust outlet. All vehicles must have functioning mufflers. For specific numeric limits and thresholds, see our full compliance report.
Are there exceptions for exhaust noise in Missouri?
Yes, there may be exceptions and exemptions. Get the full details including medical exemptions and edge cases in our compliance report.