OPERATION OF SCHOOL BUS. (a) A person may not operate a school bus if:
(1) the door of the school bus is open; or
(2) the number of passengers on the bus is greater than the manufacturer’s design capacity for the bus.
(b) An operator of a school bus, while operating the bus, shall prohibit a passenger from:
(1) standing in the bus; or
(A) on the floor of the bus; or
(B) in any location on the bus that is not designed as a seat.
(c) The department may adopt rules necessary to administer and enforce this section.