- A student entering Kindergarten must be at least 5 years old as of September 1.
- Preference is given to siblings, members of St. Catherine of Siena Parish, Roman Catholics, and then other denominations.
- A passing score on the Kindergarten Readiness Test is required before acceptance.
- A parent interview with the principal is required before a student is admitted into the school.
- For admission to grades 1-8, presentation of a satisfactory academic and conduct record in the school last attended must be submitted to the principal.