Underglow in New Hampshire
Underglow is legal in New Hampshire, including while driving, subject to color and flashing limits: All forward-facing light must be white or amber and rear light red; there is no underglow-specific ban.
Verified against primary sources · August 2026
What the law says
New Hampshire does not ban underglow — it restricts colors and behavior. All forward-facing light must be white or amber and rear light red; there is no underglow-specific ban.
Specific Limits
- Restrictions
- All forward-facing light must be white or amber and rear light red; there is no underglow-specific ban.
- While driving
- allowed
Exceptions & Exemptions
Underglow lights must not be red, blue, or flashing, and should not be visible while driving on public roads. Only white and amber lights are generally permitted in front, red in rear.
Frequently Asked Questions
Are underglow legal in New Hampshire?
What are the exact underglow limits in New Hampshire?
Are there exceptions for underglow in New Hampshire?
Street-legal underglow picks
Gear that helps you mod without a ticket in New Hampshire.
The glow that's legal in every state — inside the cabin instead of under it.
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