Massachusetts Neon Underglow Laws

Neon underglow lights have long been a popular aftermarket addition to vehicles, adding flair and personality to the way they look. However, before you decide to install neon underglow lights on your vehicle in Massachusetts, it’s essential to be aware of the state’s regulations regarding these lighting accessories. This blog post will provide you with a comprehensive overview of Massachusetts neon underglow laws to ensure you stay within legal boundaries while customizing your vehicle.

Massachusetts Neon Underglow Laws

  1. Neon Colors Matter: Massachusetts law specifically prohibits the use of certain colors for vehicle lighting. According to Massachusetts General Laws, Chapter 90, Section 7, the only colors allowed for front-facing lights are white or amber, while the only permissible colors for rear-facing lights are red or amber. Neon underglow lights typically emit various colors, which may not comply with these restrictions.
  2. Restrictions on Flashing Lights: In Massachusetts, flashing lights on vehicles are generally reserved for emergency and public safety vehicles. Using neon underglow lights that flash or strobe in a manner that imitates emergency vehicles is illegal and can result in penalties.
  3. Prohibition on Lights Visible from the Front: Massachusetts law prohibits the use of any lighting accessory that is visible from the front of a vehicle while it is in motion. This means that even if you have neon underglow lights that emit a compliant color like white or amber, they should not be visible from the front of your vehicle when you’re driving.
  4. Exceptions for Special Events: Massachusetts does provide some flexibility for using neon underglow lights for special events, parades, or exhibitions. However, you must obtain a special permit from the local authorities before using non-compliant vehicle lighting for such purposes.

Penalties for Violating Massachusetts Neon Underglow Laws

If you’re caught using illegal neon underglow lights in Massachusetts, you may face penalties, including fines and the possibility of having the lights confiscated. Penalties can vary depending on the specific violation and jurisdiction within the state. It’s essential to consult the Massachusetts vehicle code or your local law enforcement agency for precise information on penalties associated with non-compliant vehicle lighting.


While neon underglow lights can add a unique and eye-catching touch to your vehicle, it’s crucial to understand and abide by Massachusetts’ neon underglow laws to avoid legal issues and penalties. Before installing neon underglow lights, ensure they comply with the state’s regulations, and if you plan to use them for special events, obtain the necessary permits. Staying informed about these laws will help you enjoy the customizations you desire while keeping your vehicle within the boundaries of the law.

FAQ About Massachusetts Neon Underglow Laws

Are neon underglow lights legal on vehicles in Massachusetts?

No, neon underglow lights are generally not legal on vehicles in Massachusetts. The state’s vehicle lighting laws prohibit the use of aftermarket lighting devices that emit colors other than white or amber on the front of the vehicle and red or amber on the rear. Neon underglow lights typically emit various colors, which makes them non-compliant with Massachusetts regulations.

Can I use neon underglow lights for decorative purposes when my vehicle is parked in Massachusetts?

While it’s not recommended, you may use neon underglow lights for decorative purposes when your vehicle is parked and not in operation. However, it’s essential to ensure that the lights do not distract or obstruct the vision of other drivers or pedestrians. Additionally, be aware of local ordinances that may further restrict the use of such lighting in specific areas.

Are there any exceptions to Massachusetts’ neon underglow laws for special events or parades?

Massachusetts does not typically provide exceptions for neon underglow lights during special events or parades. The state’s laws on vehicle lighting remain consistent regardless of the occasion. If you intend to use neon underglow lights for a specific event, it’s advisable to check with local authorities for any temporary permits or regulations that may apply.

What are the consequences of using illegal neon underglow lights in Massachusetts?

Using illegal neon underglow lights in Massachusetts can result in penalties, including fines and potential citations. The specific penalties may vary depending on the jurisdiction and the nature of the violation. To avoid legal trouble, it’s best to adhere to Massachusetts’ vehicle lighting laws and avoid using non-compliant lighting on your vehicle.

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