OSSD Requirements

What is OSSD?

OSSD is an abbreviation for Ontario Secondary School Diploma. This is a diploma granted to high school students in Ontario, Canada. To achieve this, a student needs to complete the Ontario education curriculum.

Canadian International Learning offers the opportunity to earn OSSD online for students in Canada and around the world.

What do you need to graduate from high school?

The following requirements must be completed to obtain an Ontario Secondary School Diploma OSSD.

  • 30 credits that include 18 compulsory credits and 12 optional credits*
  • 40 hours of community service.
  • Successful completion of the Ontario Secondary School Literacy Test (OSSLT) or the Ontario Secondary School Literacy Course (OSSLC)

Read more about OSSD Credit Requirements

Compulsory Credits

Students must earn the following 18 compulsory credits to obtain the OSSD:

  • 4 credits in English (1 credit per grade)
  • 1 credit in French as a second language
  • 3 credits in mathematics (at least 1 credit in grade 11 or 12)
  • 2 credits in science
  • 1 credit in Canadian history
  • 1 credit in Canadian geography
  • 1 credit in the arts
  • 1 credit in health and physical education
  • 0.5 credits in civics
  • 0.5 credits in career studies


  • 1 additional credit in English, or a third language, or social sciences and the humanities or Canadian and world studies, or guidance and career education, or co-operative education *
  • 1 additional credit in health and physical education, or the arts, or business studies, or co-operative education *
  • 1 additional credit in science (grade 11 or 12), or technological education (grades 9-12), or co-operative education *

* a maximum of 2.0 credits in co-operative education can count as compulsory credits

Optional Credits

In addition to the 18 compulsory credits, students must earn 12 optional credits selected from the courses listed as available in the school course calendar.

OSSLT Requirements

For students residing in Ontario, Ontario Secondary School Literacy Test is compulsory to obtain an OSSD. International students must take Ontario Secondary School Literacy Course. For students with an IEP, accommodations will take place according to their needs.