No, Vermont prohibits exhaust systems producing excessive noise under 23 V.S.A. § 1221, with enforcement by the Vermont Agency of Transportation and local law enforcement. Violations may result in fines up to $200, and municipalities like Burlington and Montpelier have heightened enforcement during summer months.
Key Regulations for Loud Exhausts in Vermont
- Noise Limits: Exhaust systems exceeding 92 decibels (measured at 50 feet) violate state noise ordinances, per Vermont’s Environmental Protection Rules (Appendix A-1).
- Modified Systems: Aftermarket or altered exhausts must comply with federal EPA noise standards (40 CFR Part 205), even if originally certified. Vermont’s 2026 compliance review tightens penalties for non-compliant modifications.
- Local Ordinances: Cities such as Burlington enforce additional noise restrictions via municipal codes, including nighttime quiet hours (10 PM–7 AM) with stricter enforcement.
Enforcement targets both stationary and moving vehicles, with decibel levels verified using calibrated sound meters. Dealers and repair shops risk liability for installing non-compliant systems under Vermont’s consumer protection laws. Recent legislative proposals aim to standardize penalties across all 14 counties by 2027.