Students who successfully complete Senior High School program are awarded a high school diploma from Prince Edward Island Department of Education and CIS-Tokyo.
In senior high grades, schools operate on a credit system. This system allows for individualization of student timetables. Each course credit consists of 110-120 hours of instructional time. The pass mark for each school subject is 50 percent. To graduate, students must have at least 20 course credits.
- 5 at grade 12 level (600 level)
- 4 language arts, English and/or French, including a first language course at grade 12 level (includes Japanese 421A, 521A, 621A)
- 2 mathematics
- 2 science
- 2 social studies