A friend of mine saw something interesting the other morning. I figured you guys would be the ones to ask. This happened in Fairfax County, VA if it matters. Anyhow here is what happend. Friend was comuting to work in the morning. School bus stopped to let on childern. He was behind the bus and stopped for the lights/stop sign. While he was waiting an ambulance on a call came from the other direction. It stopped for the school bus, and waited until the school bus driver shut off the red lights and brought in the stop sign before proceeding. I've seen plenty of ambulances and fire trucks go through red lights at intersections. Normally the come to a full stop or pretty near a full stop before proceeding through the light. We just thought it was strange that the ambulance driver waited until the school bus retracted the stop sign before they proceeded. Our thought was that the bus driver would be the one to know where the kids were and when/if it would be safe for the ambulance to proceed. But we were wondering what the regulations and proceedures were for such an encounter. Are the ambulances required to wait until the bus retracts the sign? or was the ambulance driver simply being cautious?