You can check the prerequisites for any topic from the University's Topic pages. You will not be able to enrol in topics for which the prerequisites have not been met. You will be able to enrol in topics with prerequisites if you are currently enrolled in the prerequisite topic. However, if you subsequently fail the prerequisite topic, you need to amend your enrolment or obtain approval for a waiver to avoid cancellation. It is your responsibility to ensure that topic prerequisites have been met.