Admission to Computer Science major plans will normally occur when a student first applies to the Faculty of Mathematics.

Students from within the Faculty of Mathematics with advanced standing may apply for admission to a Computer Science major plan if they:

- have completed at least one term in the Faculty of Mathematics with a typical course load for a Computer Science major. For students taking a first-year CS course, a typical load includes one CS course, two math courses, and two non-math electives. For students taking second-year CS courses, a typical load includes two CS courses, two math courses, and one non-math elective.
- have credit for CS 136 or CS 146
- have a math major average of at least 65% (calculated over all math and computer science courses) and a CS major average of at least 70%

Computer Science major plans are limited-enrolment plans and successful completion of the above conditions will not guarantee admission; applicants without some of these conditions will be considered on an individual basis. Students are normally not considered for admission beyond the 2B level.