To be admitted to Greystone College Toronto, an applicant must: Have an Ontario Secondary School Diploma (OSSD) or equivalent. Accepted equivalents include: Secondary school diploma from a Canadian or United States jurisdiction. General Education Development (GED) certificate issued by a Canadian province or territory and earned before the program was discontinued in Canada on May 3, 2024. General Education Development (GED) certificate issued in the United States. Canadian Adult Education Credential (CAEC) issued by a Canadian province or territory. Transcript, diploma or certificate from another country, assessed at an Ontario OSSD level by a recognized assessment service. Canadian or U.S. postsecondary diploma or degree. Non-Canadian postsecondary diploma or degree that has been assessed as equivalent to a Canadian postsecondary diploma or degree by a recognized assessment service. Certificate of completion for an academic upgrading program from any Canadian jurisdiction, for example, the Academic Career Entrance (ACE) Certificate. Certificate of Apprenticeship or Certificate of Qualification in any trade from any Canadian jurisdiction.