Underglow in Iowa
Underglow is legal in Iowa, including while driving, subject to color and flashing limits: Front-visible light may be only white, amber, or yellow and rear only red; blue is never allowed and all flashing is banned.
Verified against primary sources · August 2026
What the law says
Iowa does not ban underglow — it restricts colors and behavior. Front-visible light may be only white, amber, or yellow and rear only red; blue is never allowed and all flashing is banned.
Specific Limits
- Restrictions
- Front-visible light may be only white, amber, or yellow and rear only red; blue is never allowed and all flashing is banned.
- While driving
- allowed
Exceptions & Exemptions
Underglow lights cannot be red or blue colors, cannot flash or strobe, and cannot be visible while driving on public roads. Must be turned off when vehicle is in motion on public streets.
Frequently Asked Questions
Are underglow legal in Iowa?
What are the exact underglow limits in Iowa?
Are there exceptions for underglow in Iowa?
Street-legal underglow picks
Gear that helps you mod without a ticket in Iowa.
The glow that's legal in every state — inside the cabin instead of under it.
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