When approached by an emergency vehicle using sirens and or flashing lights who moves?

When approached by an emergency vehicle using sirens and flashing lights, all vehicles are generally required to yield the right of way. This typically means pulling over to the side of the road and stopping to allow the emergency vehicle to pass safely. In many jurisdictions, pedestrians should also be cautious and clear the way for the emergency vehicle. Always follow local laws and regulations regarding yielding to emergency vehicles.