For school owners seeking a globally recognised curriculum and parents exploring future-ready education for their children, Canada consistently ranks among the top destinations. The country’s education system is celebrated for its emphasis on critical thinking, equity, and practical skill development. At the heart of that reputation sits the Ontario Secondary School Diploma, commonly known as the OSSD, which is one of the most widely accepted high school credentials worldwide.
This guide walks you through what a Canadian high school diploma is, how to verify that a programme is genuinely accredited, and how international students can move from enrolment all the way to graduation.
What a High School Diploma Is and Who Can Earn One
A high school diploma is an official credential awarded to students who have completed all secondary education requirements set by a governing education authority. In Canada, each province administers its own diploma, and the Ontario Secondary School Diploma is one of the most well-known among them.
The OSSD is governed by the Ontario Ministry of Education in Canada and is awarded to students who successfully fulfil three core requirements. First, students must earn a total of 30 credits from Grades 9 through 12. Of those, 18 are compulsory credits covering core subjects such as English, Mathematics, Science, History, Geography, and the Arts, while the remaining 12 are elective credits chosen from a broad range of course offerings. Second, every student must complete 40 hours of community involvement activities. Third, students must meet the provincial literacy requirement, either by passing the Ontario Secondary School Literacy Test (OSSLT) or by completing the Ontario Secondary School Literacy Course (OLC4O).
One of the most important points for international school owners and parents to understand is that the OSSD is not restricted to students living in Canada. International students can get a high school diploma from Ontario by enrolling in an accredited programme delivered through a partner school in their home country. This collaborative model makes it possible for students to attend a Canadian secondary school locally, without relocating.
Accreditation: How to Tell If an Online Diploma Is Legitimate
Not every programme that claims to offer a Canadian high school diploma holds proper accreditation. As the demand for international education grows, so does the number of providers that operate without legitimate oversight. Understanding accreditation is essential for any school owner or parent considering this pathway.
An accredited high school diploma is one that has been issued by a school inspected and authorised by a recognised government body. In the case of the OSSD, that authority is the Ontario Ministry of Education. A school that has been inspected by the Ministry is assigned a Board School Identification Number (BSID), which serves as verifiable proof of its operating status. Parents and school owners should ask for this number and confirm it directly through the Ontario Ministry of Education.
There are several signs that a programme may not be legitimate. These include a lack of verifiable inspection records, the absence of an Ontario Education Number (OEN) assigned to each student upon registration, and any programme that grants credits without centrally managed evaluation by certified Ontario teachers.
A credible OSSD programme will assign each student a unique OEN, maintain an Ontario Student Record (OSR), issue standardised Ontario report cards, and record all credits on an official Ontario Student Transcript (OST). These records follow the student throughout their secondary education and are recognised by universities worldwide. When evaluating potential programmes, school owners and parents should verify that each of these elements is in place before making a commitment.
The Enrolment to Graduation Process for International Students
Understanding the journey from initial registration to graduation day is critical for both school owners who want to integrate this programme and parents who are planning their child’s academic future. Here is how the process typically works for international students.
The first step is registration. Students enrol in an accredited OSSD programme through a local international partner school. Upon registration, each student receives an Ontario Education Number from the Ontario Ministry of Education, which serves as their key academic identifier throughout the programme.
Next comes credit assessment through a process called Prior Learning Assessment and Recognition (PLAR). For students who join the programme after Grade 9, their previous academic transcripts are evaluated, and equivalent OSSD credits are granted. This means students do not have to start from scratch and can build on the learning they have already completed.
Students are also required to take an English Language Placement Test to ensure they can succeed in an academically rigorous, English-medium programme. Accepted alternatives include recognised test scores from IELTS, TOEFL, Duolingo, or Cambridge assessments.
Once enrolled, students begin their coursework. All evaluations are centrally managed by certified Ontario teachers, ensuring that grading is consistent, transparent, and upheld to the same standard regardless of the student’s geographic location. Students receive formal report cards at the midterm and at the end of each course, complete with percentage grades, course medians, and detailed feedback from their grading teachers.
After fulfilling all 30 credits, completing the community involvement hours, and meeting the literacy requirement, students receive their Ontario Secondary School Diploma. Graduates then apply to universities around the world as students from an Ontario secondary school. The OSSD is accepted globally without the need for additional standardised testing, giving graduates a significant advantage in the university admissions process.
Frequently Asked Questions About the High School Diploma and Rosedale
Is the OSSD recognised by universities outside of Canada?
Yes. The OSSD is accepted by universities in over 20 countries, including the United Kingdom, the United States, Australia, Singapore, and across Europe. Graduates of accredited OSSD programmes apply as Ontario secondary school students, which is a globally trusted credential.
Can students earn a dual diploma by studying the OSSD alongside their national curriculum?
Yes. Many international schools operate a dual diploma model, in which students complete both their local national curriculum and the OSSD simultaneously. Upon graduation, they receive two credentials, broadening their options for university admission.
What happens if a student does not pass the literacy test?
If a student is unsuccessful on the OSSLT, they have the option to complete the Ontario Secondary School Literacy Course (OLC4O) to meet the graduation requirement.
How does Rosedale ensure the quality of its programme for international partner schools?
Rosedale Global High School is inspected by the Ontario Ministry of Education (BSID 668726) and centrally manages all academic administration, including student registration, credit granting, evaluation, and transcript issuance, from its head office in Toronto, Canada. All course evaluations are graded by experienced Ontario Certified Teachers through a centralised evaluation system.
Does Rosedale provide training and support for partner school teachers?
Yes. Rosedale delivers comprehensive teacher and administrator training programmes to all international partner schools. This ensures consistent quality in curriculum delivery and supports educators in implementing differentiated instruction and higher-order thinking skill development.
Partner with Rosedale and Offer the OSSD at Your School
For school owners looking to elevate their academic offerings and for parents seeking a world-class education that opens doors to global universities, the OSSD through Rosedale Global High School is a proven pathway. Rosedale works alongside more than 62 international partner schools across 17 countries, supporting over 5,000 students in earning an accredited high school diploma with life-changing learning outcomes.
If you are interested in bringing the OSSD programme to your school, or if you would like to learn more about how Rosedale can support your students, reach out to the Rosedale team today. Visit rosedaleedu.com or contact inquiries@rosedaleedu.com to start a conversation about partnership opportunities and discover how Rosedale can help you reshape the future of education at your institution.
