Thinking about underglow for your car in Maine? Here is what the law says, and how to run it legally. Ready to install? See our RGBIC underglow kit and the install guide.

Is Underglow Legal in Maine? (2026 Guide)

Two rules are nearly universal across the US: no red light shown to the front and no blue underglow (both reserved for emergency vehicles), and no flashing, rotating, or strobing while driving. Beyond that, states differ. Here is how Maine handles it.

Underglow rules in Maine

• Not road-legal: Maine law specifically defines under-vehicle lighting and provides that it may not be used or illuminate the vehicle on a public way. It is allowed only for shows, events, or exhibitions.
• Colors (for permitted auxiliary lights): White or amber to the front, amber to the side, amber or red to the rear, steady only.
• Driving vs parked: You may install it, but it may not be lit while on public roads.

Underglow while parked or on private property

Because Maine does not permit lit underglow on public roads, genuinely private property, a private lot, driveway, car show, or off-road, is the practical place to enjoy it, and those road rules generally do not reach private property. Be aware that a car parked on a public street is usually still treated as being on the highway, and red or blue lighting can trigger separate police-impersonation laws regardless of motion. Keep to compliant colors and check local ordinances.

How to stay legal with underglow in Maine

• Keep the lights steady-burning, never flashing, strobing, or rotating.
• Show no red light to the front, and avoid blue entirely.
• Do not mimic emergency-vehicle lighting or obscure your license plate.
• Confirm the current rule below and check locally before driving with it on.

The law

Maine Revised Statutes Title 29-A, section 1909-B (optional auxiliary lighting), verified against the official Maine Legislature text. You can read the referenced law here: Maine statute.

Ready to install?

Our RGBIC underglow kit lets you dial in any color and keep it steady, and the install guide covers wiring it to a switched power source. Free shipping on all US orders.

Maine Underglow FAQ

Is underglow legal in Maine?
Underglow is not permitted on public roads; under-vehicle lighting may be installed but not illuminated on a public way (show and exhibition use only). Keep the lights steady, show no red to the front, and avoid blue.

What underglow colors are illegal in Maine?
Any color is barred for on-road use since illuminated under-vehicle lighting is not allowed on a public way. Flashing or strobing of any color is not allowed.

Can I have underglow on while parked in a lot?
On genuinely private property, such as a private lot, driveway, or car show, underglow use is generally far less restricted. On a public street a parked car is usually still treated as being on the highway, so the color rules still apply, avoid red and blue, and check your local ordinances.

Updated July 2026.