IS MY MOD LEGAL?

Underglow in Missouri

Vehicle type: Van

Conditional

Underglow is legal in Missouri, including while driving, subject to color and flashing limits: Red, blue, flashing, and rotating lights are reserved for permitted emergency and work vehicles (a Class A misdemeanor otherwise); steady amber, white, and other non-red/blue colors are fine.

Verified against primary sources · August 2026

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Frequently Asked Questions

Are underglow legal in Missouri?
Underglow is legal in Missouri, including while driving, subject to color and flashing limits: Red, blue, flashing, and rotating lights are reserved for permitted emergency and work vehicles (a Class A misdemeanor otherwise); steady amber, white, and other non-red/blue colors are fine.
What are the underglow limits in Missouri?
Underglow is legal in Missouri, including while driving, subject to color and flashing limits: Red, blue, flashing, and rotating lights are reserved for permitted emergency and work vehicles (a Class A misdemeanor otherwise); steady amber, white, and other non-red/blue colors are fine. For specific numeric limits and thresholds, see our full compliance report.
Are there exceptions for underglow in Missouri?
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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