Louisiana allows Christmas lights on cars if they don’t obstruct views, hide plates, or mimic emergency lights.

Decorating cars with Christmas lights is not illegal in Louisiana, but must comply with safety laws. Flashing, strobing, or emergency-style lights—especially red, blue, or amber—are prohibited. Lights cannot obscure license plates, block the driver’s view, or interfere with required vehicle lighting. Neon underglow is allowed if it doesn’t violate these rules. While no law specifically bans holiday lights, officers can stop drivers if lights pose a safety hazard or are misleading. Drivers should avoid distracting or obscuring decorations to prevent citations.