Immunization

For the 2025/2026 school year, Halton Region Public Health will be enforcing Ontario’s Immunization of School Pupils Act (external link) (ISPA) for students born 2008 to 2013, and 2016 to 2018 who are missing immunization records with Public Health.

MORE INFORMATION ON IMMUNIZATIONS REQUIRED FOR SCHOOL ATTENDANCE

Have you received a vaccine letter from Public Health?

Halton Region Public Health is now sending letters to students in elementary students born in 2012, 2013, 2016, 2017 and 2018 who are missing immunizations records required as per the Immunization of School Pupils Act (external link) (ISPA).

Letters to students in secondary students born in 2008 to 2011 missing immunization records with Public Health will begin mailout later in November.

You may have received a letter because:

• Your child’s immunizations have not been reported to Public Health.
• Your child is missing a required vaccine.
• Your child received vaccines that do not meet the requirements of Ontario's routine immunization schedule.

Please note: Some vaccines, such as Influenza, Hepatitis B, and Human Papillomavirus (HPV), are recommended by the Ontario Publicly Funded Immunization Schedule but are not required under the ISPA for school attendance.

View records or report immunizations

If you have recently reported your child’s immunization record, you may still receive a letter due to processing times.

If two to three weeks have passed since your submission, we encourage you to login to ICON to review your child’s record and make sure it includes your updates, and that there are no additional vaccines required.