An Ontario Secondary School Diploma (OSSD) is given to students who completed all required high school courses and volunteer hours. With rigorous management ensuring a quality education, the OSSD program is one of the world’s most advanced high school curricula. An OSSD graduate can apply for admission to universities in 165 countries, including Canada, the USA, the UK, and Australia. In addition, PISA (An International Top-5 High School Program) has ranked OSSD among the top 5 globally.