London Ontario Graduation Rules & Mandatory Subjects

Education Ontario 3 Minutes Read · published February 12, 2026 Flag of Ontario · By Daniel Roy

In London, Ontario students and families should understand provincial graduation rules that apply at local boards and schools. Graduation requirements are set by the Ontario Ministry of Education and administered locally by school boards such as the Thames Valley District School Board and the London District Catholic School Board. This guide explains mandatory subject and credit rules, how local schools implement them, enforcement and appeal pathways, and practical steps to check or challenge credit decisions.[1]

Overview of Mandatory Subjects & Credit Rules

The Ontario Secondary School Diploma (OSSD) requires a set number of credits and provincial requirements that all students in London must meet to graduate. Local school boards record and certify credits, and principals verify completion of compulsory courses and other diploma requirements. For details on the provincial list of compulsory credits and diploma requirements, consult the Ministry of Education guidance cited below.[1]

Check your school transcript early in Grade 11 to confirm you are on track for compulsory credits.

Penalties & Enforcement

Failure to meet mandatory subject or credit rules generally results in denial or delay of the Ontario Secondary School Diploma rather than monetary fines. Specific enforcement actions, timelines and remedies are administered by the studentservices and principal at the students school and by the local school board for records and appeals.[2]

  • Monetary fines: not applicable for diploma credit shortfalls; not specified on the cited page.
  • Administrative sanctions: withholding of diploma, requirement to complete missing credits or alternative course work.
  • Appeals and reviews: local board appeal procedures and superintendent review for credit disputes; timelines not specified on the cited page.
  • Enforcer: school principal and the school boards student services or principal supervisory officer; complaints start at the school office and may escalate to the board.
If a credit is recorded incorrectly, request a review with the guidance or student services office immediately.

Applications & Forms

Most credit, transcript and graduation requests are processed through the school or board student records office. Official forms and procedures (for example, transcript request, mature student assessment, or appeal forms) are published by each board; if a specific form number is required, it is listed on the boards website or the Ministry guidance. Where no single form is required, the cited board page explains the submission process.[2]

How Credits Are Verified Locally

Local principals verify course completion, and boards are responsible for recording credits in the Ontario Student Record (OSR). Schools use board procedures to grant equivalent credits, recognize prior learning, or approve substitutions such as alternative course pathways or recognized community programs. For board-specific procedures and forms, consult your local board pages listed in Resources.

Common Violations and Typical Outcomes

  • Missing compulsory credits (e.g., English, civics): outcome is usually requirement to enroll in or complete the missing course.
  • Incomplete required assessments (such as literacy requirements): may delay diploma until assessment is satisfied.
  • Disputed credit recognition or equivalency: requires formal review by the principal and possible appeal to the board.
Diploma issuance can be delayed until all compulsory credits, hours and literacy requirements are met.

FAQ

How many credits do I need to graduate?
The Ontario Secondary School Diploma requires 30 credits in total, including compulsory and optional credits; see the Ministry guidance for the full list and classification.[1]
Who enforces credit and subject rules in London?
Local school principals and the school board enforce and record credits; the Ministry of Education sets the provincial requirements.[2]
What if I disagree with my recorded credits?
Start with the schools guidance or student services office to request a review; if unresolved, follow the boards appeal procedure as published on the board site.[2]

How-To

  1. Gather your transcript and OSR records from the school office.
  2. Contact guidance or student services to request a formal credit review.
  3. If the school decision is not satisfactory, submit an appeal following the boards published procedure and timelines.
  4. Complete any required courses, assessments or community hours as instructed to secure the diploma.

Key Takeaways

  • Graduation rules are set provincially but enforced and recorded locally by your school and board.
  • Do not wait to check your transcript; early review reduces risk of delayed graduation.

Help and Support / Resources

  1. [1] Ontario Ministry of Education  Ontario Secondary School Diploma (OSSD)
  2. [2] Thames Valley District School Board  Graduation and Records

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Daniel Roy

Daniel Roy

Municipal Bylaw Analyst

Daniel analyses municipal bylaws across Canadian provinces and territories. He checks every guide against official municipal and provincial sources.