In NYS, a green light displayed on a vehicle indicates EMS personnel responding to a 911 call in their personal vehicle. Because our volunteers sometimes leave the station during their shift, if they get a call they will activate their green light and proceed safely to meet the ambulance. If you see a passenger car with a flashing green light, please treat it like any other emergency vehicle; we are requesting the right of way – this is a courtesy light. When it is safe to do so, please pull over to the right and come to a complete stop.