Four Courses in First Semester?
Yes, students entering their first semester in the fall will only be taking four courses!
For the B.Sc.(Env.) degree program students are required to take a course worth 1.00 credits. (You will see in the Registration Handbook that ENVS*1030 is highlighted as that course.) This course, in addition to the other three courses (each worth 0.50 credits) gives you a total of 2.50 credits which is full-time registration (noted in the second paragraph of the Registration Handbook).
This also means you can not select an elective course for the fall semester.