Students who are unable to be present should get in touch with the instructor in advance to see whether she or he will hold their places. Instructors are not, however, required to hold places or to admit students at the door. The petition must be submitted to the Committee at least three weeks before the start of the course. Permission will be granted only in cases of genuine hardship and provided the extension of the cap does not exceed four. The student must demonstrate that the course is needed to fulfill a degree or major requirement for which there is no alternative in the same or a different department and that the course or its alternative cannot be taken in a different term or in a later year.
Some courses have lower caps.
A list of such courses is available from the Registrar's Office.