A. Except for the purpose of conducting drills under school rules and in the emergency evacuation or dispersal of pupils and school personnel, a person shall not operate a school bus on a public highway:
1. While carrying more passengers than can be properly seated.
2. While a person is standing in the school bus.
B. In receiving or discharging children at the school, a person who drives a vehicle carrying children to and from school shall stop the vehicle on the side of the highway on which the school is located.