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Ontario Substitute Teacher Requirements | CertifiedSub | CertifiedSub
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Ontario Substitute Teacher Requirements

Last reviewed: February 8, 2026
At a Glance

6

Required Items

2

Optional/Recommended

Required Requirements
You must meet all of these requirements to become a substitute teacher in Ontario.

Education Requirements

A high school diploma or equivalent is the minimum requirement to work as a classroom supervisor (substitute teacher) in Ontario. A Bachelor of Education (B.Ed.) is preferred and may qualify candidates for higher pay rates, but it is not required. Due to ongoing teacher shortages, school boards across Ontario are actively hiring classroom supervisors who do not hold a B.Ed. degree. Classroom supervisors perform the same day-to-day duties as substitute teachers, including following lesson plans, managing classrooms, and supervising students. Candidates with post-secondary education in any field, relevant work experience with children, or educational assistant credentials may be given preference during the hiring process.

Background Check

A Criminal Record Check with Vulnerable Sector Screening is required by all school boards before a supply teacher can begin assignments. The check must be current, and boards typically require it to be renewed annually or supplemented with an annual offence declaration.

Age Requirements

Applicants must be at least 18 years of age, the age of majority in Ontario. Members of the Ontario College of Teachers must be of legal age to hold a professional licence and assume duty-of-care obligations.

Application Process

Candidates apply directly to individual school boards in Ontario to be placed on the classroom supervisor or substitute teacher roster. Most boards accept applications through their online portals or human resources departments. The typical application requires a resume, proof of education (high school diploma or higher), a current Criminal Record Check with Vulnerable Sector Screening, government-issued photo identification, and two to three professional references. Some boards may also require a brief interview or orientation session before adding candidates to their active roster. Processing times vary by board but generally range from two to six weeks.

Recommended / Optional
These may help your application or are recommended but not strictly required.

Teaching Certification

A provincial teaching certificate is not required to work as a classroom supervisor in Ontario. Candidates who hold a valid Certificate of Qualification and Registration issued by Ontario College of Teachers (OCT) may be offered preferential placement, higher daily pay rates, or priority access to long-term assignments. However, the classroom supervisor role was created specifically to address teacher shortages by allowing individuals without formal teaching credentials to fill substitute positions. School boards set their own criteria for classroom supervisors, and requirements may vary between school boards.

First Aid/CPR

While not mandated by the Ontario College of Teachers, many school boards recommend or require occasional teachers to hold a valid Standard First Aid and CPR-C certificate. This is especially important for assignments in primary grades, physical education, and outdoor education settings.

Additional Information

For more information, visit the Ontario College of Teachers (OCT) page. Note: Classroom supervisor positions may have different requirements than certified teaching positions. Contact individual school boards directly for the most current classroom supervisor hiring criteria.

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Language Requirements

English-language school boards require proficiency in English. French-language school boards require fluency in French. Ontario has both English and French public and Catholic school systems. French immersion programs within English boards also require occasional teachers with strong French proficiency.

Training/Orientation

Most school boards require occasional teachers to attend an orientation session that covers board policies, the automated dispatch system (such as SmartFind Express or Aesop/Frontline), emergency procedures, safe schools protocols, and expectations for classroom management.

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