Ontario Secondary School Diploma (OSSD) or equivalent with:
Grade 12 English: ENG4(C) or ENG4(U)
Grade 11 or 12 Chemistry: (C) or (U), or Grade 11 or 12 Biology (C) or (U) (both recommended, only one is required) or appropriate Academic and Career Entrance (ACE) Certificate program credits (see Academic Upgrading).
OR

Mature Student Status (age 19 or older) with the above prerequisite course(s), or their equivalent(s).
When applying to a Seneca two- or three-year diploma program you must submit:

High school transcripts for grades 10, 11 and 12 showing all program specific pre-requisite courses.
High school/secondary school diploma (certificate of completion).
You may submit transcripts or certificates for any completed university/postsecondary college courses or programs taken inside or outside of Canada.
Academic records that are in a language other than English must include an official/certified English translation.
IELTS Academic - Minimum 6.0 with no skill below 5.5, TOEFL iBT - Minimum 80 with no skill below 20 , TOEFL Revised Paper Delivered - No skill below 20