School immunization laws are one of the most effective tools for preventing outbreaks of contagious diseases in schools and communities. All 50 states have school immunization requirements. Administrators of all New Jersey public and private schools, including childcare, preschool, Head Start, and K-12, are responsible for ensuring that all students are in compliance with N.J.A.C.8:57-4, Immunization of Pupils in School regulations.