I would think that there should at least be a law requiring cyclists to slow way down when passing buses...seeing as how many pedestrians have been hit by speeding cyclists on MUPs and in crosswalks. Maybe one day I'll get around to checking my own state law on this topic, I do know the laws, in general, but never remember seeing anything about stopping for school buses. I always stop, so whatever the law says I know I'm not outside the law.