Yes, Underglow lighting is legal in Tennessee for vehicles, provided it complies with state and local regulations. Tennessee law permits non-flashing, non-distracting underglow lights that do not exceed 300 candlepower, but municipal ordinances may impose additional restrictions. The Tennessee Department of Safety and Homeland Security has not issued statewide bans, though Nashville and Memphis have enacted local prohibitions on certain colors or placements. Compliance with federal standards (FMVSS 108) remains mandatory.
Key Regulations for Underglow Lighting in Tennessee
- Color Restrictions: Red, blue, or amber underglow lights are prohibited as they mimic emergency vehicle signals. White or amber lights are permissible but must not exceed 300 candlepower.
- Placement Limits: Underglow lights must not be visible from the front of the vehicle or interfere with headlight or taillight visibility. Mounting below the bumper is typically permitted, but side-mounted lights may violate local ordinances.
- Local Ordinances: Municipalities like Nashville and Memphis enforce stricter rules, including outright bans on underglow lighting. Always verify county or city-specific regulations before installation.
Failure to adhere to these restrictions may result in citations under Tennessee Code Annotated § 55-9-402, which governs vehicle lighting systems. Federal compliance (49 CFR § 571.108) applies to all aftermarket modifications. Consult the Tennessee Department of Revenue’s Vehicle Services Division for updates, as enforcement policies may shift in 2026.