IS MY MOD LEGAL?

Light Bars & LED Lighting in Alaska

Conditional

Alaska allows auxiliary lamps on the road with no cover requirement. No more than four front lights over 300 candlepower may be lit when there is approaching traffic, spotlights are capped at two, and nothing red, flashing, or rotating may show to the front.

Verified against primary sources · August 2026

What the law says

Contrary to widely repeated advice, no cover is required in this state. 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 — a roof-mounted bar often falls outside the permitted category entirely.

Specific Limits

Max lit
4 front lights over 300 candlepower when there is approaching traffic
Prohibited
red visible from the front; flashing or rotating lights
Spotlights
2 maximum
Cover required
No

Statute

13 AAC 04.145

Read the statute →

Frequently Asked Questions

Are light bars & led lighting legal in Alaska?
Alaska allows auxiliary lamps on the road with no cover requirement. No more than four front lights over 300 candlepower may be lit when there is approaching traffic, spotlights are capped at two, and nothing red, flashing, or rotating may show to the front.
What are the exact light bars & led lighting limits in Alaska?
Max lit: 4 front lights over 300 candlepower when there is approaching traffic. Prohibited: red visible from the front; flashing or rotating lights. Spotlights: 2 maximum. Cover required: No. Source: 13 AAC 04.145.

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