Mississippi Code Title 37. Education § 37-11-5

(1) It shall be the duty of the principals and teachers in all public school buildings to instruct the pupils in the methods of fire drills and to practice fire drills until all the pupils in the school are familiar with the methods of escape. Such fire drills shall be conducted often enough to keep such pupils well drilled. It shall be the further duty of such principals and teachers to instruct the pupils in all programs of emergency management as may be designated by the State Department of Education.

(2) It shall be the further duty of such principals and teachers to develop and conduct an active shooter drill within the first sixty (60) days of each new school semester for students, teachers and staff.