IS MY MOD LEGAL?

Light Bars & LED Lighting in Iowa

Vehicle type: Suv

Conditional

Iowa allows up to three auxiliary driving lamps mounted 12 to 42 inches on the front, with no cover requirement. No more than four front lamps over 300 candlepower may be lit at once on a highway.

Verified against primary sources · August 2026

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Frequently Asked Questions

Are light bars & led lighting legal in Iowa?
Iowa allows up to three auxiliary driving lamps mounted 12 to 42 inches on the front, with no cover requirement. No more than four front lamps over 300 candlepower may be lit at once on a highway.
What are the light bars & led lighting limits in Iowa?
Iowa allows up to three auxiliary driving lamps mounted 12 to 42 inches on the front, with no cover requirement. No more than four front lamps over 300 candlepower may be lit at once on a highway. For specific numeric limits and thresholds, see our full compliance report.
Are there exceptions for light bars & led lighting in Iowa?
Yes, there may be exceptions and exemptions. Get the full details including medical exemptions and edge cases in our compliance report.

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