Locally developed compulsory courses may be developed by a board and offered in one Grade 9 course in English, in mathematics, in science, and in French as a second language, and one grade 10 course in English, in mathematics, in science and in Canadian history that can count as a compulsory credit in that discipline. A compulsory course is defined as one of the 18 required courses in the bundle of 30 required to graduate from Ontario schools.
Locally developed courses are courses that may be developed by a board for students in a particular school or region to accommodate educational and/or career preparation needs that are not met through courses within the provincial curriculum policy documents.  Such courses require approval of the ministry, with the exception of religious education courses developed by roman Catholic school boards.
Boards may develop courses locally that can be counted as optional credits in Grades 9 to 12 in any discipline.