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The Guide to Legal Car Modifications in Vermont

The Guide to Legal Car Modifications in Vermont ARENA Creative /

If you have a modified vehicle in Vermont, or you will be moving to the area with one, you will want to know the regulations that you have to follow. The following are some of the most important requirements to make sure that your car or truck is considered street legal in Vermont.

Sounds and noise

Vermont sound ordinances include: Sound systems

  • It is unlawful to make unreasonable noise between sunset and sunrise. What constitutes unreasonable noise is that which annoys or disturbs others.


  • All vehicles must have mufflers that prevent unusual or excessive noise.

Tip: Always check with local county laws in Vermont to make sure you are following any municipal noise ordinances that may be more stringent than state-level laws.

Frame and suspension

Vermont does not have regulations on frame, suspension lift or bumper height limits.

  • Vehicles can be no taller than 13 feet 6 inches.


Vermont does not require emissions testing and does not list any engine modification or swap regulations.

Lighting and windows


  • After-market lamps must have “DOT” stamped on the lens if used on the roadways.
  • No undercarriage or glow lights are permitted.
  • Blue and green lamps are not permitted.
  • License plate glow frames or lights are not permitted.

Window tinting

  • Non-reflective tint is permitted on the windshield above the AS-1 line from the manufacturer.

  • Window tint is not permitted on the front side windows.

  • Rear window and back side window tint can be any darkness.

  • Side mirrors are required with rear window tint.

  • Mirrored or metallic tint is not permitted.

Antique/classic car modifications

Vermont has no requirements for classic or antique cars. However, a Vermont Motor Vehicle Registration, Tax, and Title Application must be filled out and submitted for any vehicles that have not been previously registered in the state.

If you want to make sure your vehicle complies with the laws concerning modifications in Vermont, YourMechanic can provide the mobile mechanics to help you install the new parts. You can also ask our mechanics what modifications may be best suited to your car using our free online Q&A system, Ask a Mechanic.

The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

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