IS MY MOD LEGAL?

Light Bars & LED Lighting in New Hampshire

Conditional

New Hampshire names the product directly: since September 2024, aftermarket LED light bars, flood-style pod lights, and roof or roll-bar mounted lights may not be illuminated while operating on a way. They must be off, not covered.

Verified against primary sources · August 2026

What the law says

Three auxiliary driving lamps mounted 12 to 42 inches remain permitted. Contrary to widely repeated advice, no cover is required in this state — the rule is simply that the lamps are off on the highway. Mounting a light bar is legal everywhere; what states regulate is using it on public roads, and the usual constraint is a mounting-height ceiling plus a per-type lamp count.

Specific Limits

Max lamps
3 auxiliary driving lamps (12-42 in)
Light bars
aftermarket LED light bars, flood-style pod lights, and roof or roll-bar mounted lights may not be illuminated while operating on a way
Cover required
No

Statute

RSA 266:37 (subsection IV added 2024, effective September 17, 2024)

Read the statute →

Frequently Asked Questions

Are light bars & led lighting legal in New Hampshire?
New Hampshire names the product directly: since September 2024, aftermarket LED light bars, flood-style pod lights, and roof or roll-bar mounted lights may not be illuminated while operating on a way. They must be off, not covered.
What are the exact light bars & led lighting limits in New Hampshire?
Max lamps: 3 auxiliary driving lamps (12-42 in). Light bars: aftermarket LED light bars, flood-style pod lights, and roof or roll-bar mounted lights may not be illuminated while operating on a way. Cover required: No. Source: RSA 266:37 (subsection IV added 2024, effective September 17, 2024).

Street-legal light bars & led lighting picks

Gear that helps you mod without a ticket in New Hampshire.

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