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Oregon Exhaust & Muffler Laws (2026)

Info: Your vehicle needs a proper exhaust. On the Department of Environmental Quality's stationary test, passenger cars built in 1976 or later are capped at 88 decibels, and cars built before 1976 at 92 decibels, measured at 25 feet (Or. Rev. Stat. § 815.250).

InfoVerified Jun 19, 2026

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Your vehicle needs a proper exhaust. On the Department of Environmental Quality's stationary test, passenger cars built in 1976 or later are capped at 88 decibels, and cars built before 1976 at 92 decibels, measured at 25 feet (Or. Rev. Stat. § 815.250).

Official source: oregonlegislature.gov →

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