State law mandates up-to-date immunization records for school attendance:

State law requires that all children in public and private schools, preschools, Head Start and certified child care facilities have up-to-date documentation on their immunizations, or have a religious or medical exemption.

“Immunization is an effective way to keep schools and the entire community healthy. We want to make sure children are fully protected against vaccine-preventable diseases,” said Stacy de Assis Matthews, school law coordinator in the Oregon Health Authority’s Public Health Division. “If school and child care vaccination records are not up-to-date, the child will be sent home.”