You are following a school bus when its yellow lights start flashing. What does this mean?

A school bus turns on its flashing yellow lights to warn drivers that it will soon stop for passengers. Under Ohio law, if the school bus stops on a roadway with fewer than four lanes, all vehicles approaching the bus from either direction must stop at least 10 feet from the bus. If the school bus stops on a roadway with four or more lanes, only vehicles traveling in the same direction as the bus must stop. [Stopping for a School Bus, Stopping, 6 – Traffic Laws, Digest of Ohio Motor Vehicle Laws], [OH R. C. § 4511.75]