18 compulsory credits
Students must earn the following compulsory credits to obtain the Ontario Secondary School Diploma:
4 credits in English (1 credit per grade)*
3 credits in mathematics (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
1 credit in French as a second language
0.5 credit in career studies
0.5 credit in civics

Plus one credit from each of the following groups:
1 additional credit (group 1): additional credit in English, or French as a second language,** or a Native language, or a classical or an international language, or social sciences and the humanities, or Canadian and world studies, or guidance and career education, or cooperative education***
1 additional credit (group 2): additional credit in health and physical education, or the arts, or business studies, or French as a second language,** or cooperative education***
1 additional credit (group 3): additional credit in science (Grade 11 or 12), or technological education, or French as a second language,** or computer studies, or cooperative education***

In addition to the compulsory credits, students must complete:
12 optional credits†
40 hours of community involvement activities
Successful completion of the provincial literacy requirement

*A maximum of 3 credits in English as a second language (ESL) or English literacy development (ELD) may be counted towards the 4 compulsory credits in English, but the fourth must be a credit earned for a Grade 12 compulsory English course.
**In groups 1, 2, and 3, a maximum of 2 credits in French as a second language can count as compulsory credits, one from group 1 and one from either group 2 or group 3.
***A maximum of 2 credits in cooperative education can count as compulsory credits.
†The 12 optional credits may include up to 4 credits earned through approved dual credit courses.