Underglow in California
Vehicle type: Sedan
Underglow is legal in California, including while driving, if diffused and dim (≤0.05 cd/sq in, ≤720 sq in total), not red toward the front, and not flashing.
Verified against primary sources · August 2026
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Frequently Asked Questions
Are underglow legal in California?
What are the underglow limits in California?
Are there exceptions for underglow in California?
Street-legal underglow picks
Gear that helps you mod without a ticket in California.
The glow that's legal in every state — inside the cabin instead of under it.
Underglow LED kit →Check your state's color and flashing rules before running these on public roads.
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