Del. Code tit. 14 § 4115
The school board of each school district shall offer, to each parent or guardian of a student within that district who is licensed to drive a motor vehicle, a choice between driving a private vehicle to the school and transportation to the school by the school bus; provided, however, that those who choose to drive a private vehicle shall not be transported by a school bus, and those who choose to be transported by a school bus shall not be permitted to park on school grounds. The principal of each school may issue passes for school bus transportation to certain pupils who have chosen to drive a private vehicle, for use on a temporary and emergency basis; and may also set aside a specific number of parking spaces for use on a temporary and emergency basis by pupils who originally chose transportation by school bus.
14 Del. C. § 4115