A. Each student, upon initial entry to any preschool or school in this state, shall furnish evidence to the administrative head of the preschool or school (pursuant to the requirements of section 3.4 of these rules and regulations) that the student has been immunized, as required in sections 3.2, 3.3, and 3.4 herein, unless the student is in an exempt category.

This site lays out immunization requirements for students