IS MY MOD LEGAL?

Underglow in Pennsylvania

Vehicle type: Suv

Conditional

Underglow may not be used on public roads in Pennsylvania. All aftermarket underglow is prohibited on public roads regardless of color — Pennsylvania permits only the lamps enumerated in its vehicle code, and underglow is not among them.

Verified against primary sources · August 2026

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Frequently Asked Questions

Are underglow legal in Pennsylvania?
Underglow may not be used on public roads in Pennsylvania. All aftermarket underglow is prohibited on public roads regardless of color — Pennsylvania permits only the lamps enumerated in its vehicle code, and underglow is not among them.
What are the underglow limits in Pennsylvania?
Underglow may not be used on public roads in Pennsylvania. All aftermarket underglow is prohibited on public roads regardless of color — Pennsylvania permits only the lamps enumerated in its vehicle code, and underglow is not among them. For specific numeric limits and thresholds, see our full compliance report.
Are there exceptions for underglow in Pennsylvania?
Yes, there may be exceptions and exemptions. Get the full details including medical exemptions and edge cases in our compliance report.

Street-legal underglow picks

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