Taken directly from St. Marcellinus Website.
Dual credit programs are ministry-approved programs that allow students, while they are still in secondary school, to take college or apprenticeship courses that count towards both the Ontario Secondary School Diploma (OSSD) and a postsecondary certificate, diploma, or degree, or an apprenticeship certification.
https://www.dpcdsb.org/Documents/DualCredit_FactSheet.pdf