If you approach a school bus from either direction and the bus is displaying alternately flashing red lights, you must stop and not pass until (1) the school bus has resumed motion, or (2) you are signaled by the driver to proceed, or (3) the red lights are no longer flashing.

You need not stop when meeting or passing a school bus which is (1) on a different roadway, or (2) upon a controlled-access highway where the school bus is stopped in a loading zone and pedestrians are not permitted to cross the roadway.