I love my "bus driver mirrors" I don't know what they're really called, but that's the term i use. My bus is a significantly larger 72 passenger. I really like using those little mirrors on the front to check my blind spots, especially when changing lanes. I've angled them to provide more of a view twards the side of the bus rather than the front. They also make good "feelers" when turning and the front end is really close to some unimportant object ie: dumpster or telephone pole. The mirrors will hit the object before the bumper............so i've heard.
I don't know the law, but i can't immigine they are required for a non-commecial bus.
Quis custodiet ipsos custodes (who will watch the watchmen?)