While the law requires the sending school district to furnish transportation, it does not relieve the parents of students from the responsibility of supervision. Once a student boards the bus, and only at that time, does he/she become the responsibility of the school district. Such responsibility shall end when the student is delivered to the regular bus stop at the close of the school day. In view of the fact that a bus is an extension of the classroom, the Board of Education shall require students to conduct themselves in a manner consistent with established standards for classroom behavior. In cases when a student does not conduct him/herself properly on a bus, the Director will invoke the discipline code. It is necessary for a report to be filled out by the bus driver. Students who become serious discipline problems on the school bus may have their riding privileges suspended by the Director. In such cases, the parent/guardian of the student involved and the sending district will be notified to determine an alternate transportation method.