Ever seen a car with bright green lights and wondered what’s going on? At first, it might seem like someone’s just getting into the holiday spirit, but these lights aren’t just for decoration—they actually serve a real purpose.Green lights on cars aren’t just a style choice—they indicate the vehicle is part of an emergency medical service. When you see one, it’s a sign that the driver needs the right of way. They might be transporting someone who requires immediate medical attention. Think of it like the car saying, “Clear the road. Someone needs help.”

Green lights are usually found on volunteer EMTs, private medical transport services, and non-emergency ambulances. These vehicles aren’t responding to life-threatening emergencies like fire trucks or ambulances with sirens. Instead, they help people get to scheduled treatments, dialysis, or elderly care safely and on time. The green light helps these vehicles navigate traffic more easily and avoid delays that could negatively affect a patient’s health.Can anyone put green lights on their car? Not at all. There are strict rules in most places. Drivers must register the vehicle with local or state authorities, prove they’re part of a legitimate medical service, and meet specific safety and care standards. Putting green lights on your car without permission is not only illegal, it’s dangerous. It could cause confusion on the road and delay real medical transport. If you see someone misusing green lights, report it to authorities. It could put lives at risk and create unnecessary traffic jams.

Now that you know what green lights mean, you can help by giving these vehicles the right of way. It could make a huge difference in getting someone to an important medical appointment on time. Green lights might not be flashy or loud like sirens, but they still signal urgency. Just like red and white emergency lights, they alert drivers to the need for immediate action—just in a quieter, less obvious way. So, when you see those green lights, step aside. It’s a small act that can have a big impact.