Recently, I've witnessed emergency vehicles (mostly private ambulances and Police cars), passing other vehicles on the right side. From day one I was always taught to pass on the left, because according to the law, vehicles yielding right of way must pull to the right and stop. I witnessed these emergency vehicles come close to being struck multiple times as motorists reacted to the lights and sirens by pulling to the right, into the path of the emergency vehicle! Some of these incidents happened on straight stretches of roadway, while others happened at an intersection.
What's your policy on this? Ours is to pass on the left whenever possible.