Mississippi Code Title 37. Education § 37-41-15

The school boards are hereby authorized to make necessary alterations in transportation routes, or to establish supplementary transportation routes in order to meet emergencies which may arise during the school year, such as the destruction of a school building by fire or other causes, an unanticipated increase in the number of school children in the school district during the school year, or any other emergency. Such emergency transportation shall be continued only so long as is necessary by reason of the emergency conditions.