Please note that we are now offering the Food Safety Challenge Exam at the Guelph Campus. If you have taken the home study method, or you feel you have the knowledge or you need to re-certify (certificate is valid for 5 years), take the Challenge Exam to earn your Food Safety Wallet Card either through the Region of Waterloo Public Health or Wellington-Dufferin-Guelph Public Health. Only those receiving 70% or higher on their test will receive a certificate. (includes the exam only). NOTE: You must pre-register for the exam. Check our website for the most up-to-date schedule.