The registration calendar is divided into distinct periods: a pre‑registration interval for advising and degree‑audit checks, the official open registration window when students select courses, a waitlist phase for oversubscribed sections, and a subsequent add/drop period that allows limited adjustments. Each interval is announced on the Cornell Academic Calendar, and dates vary by college but follow a university‑wide schedule to synchronize class‑room availability and faculty staffing.
Students interact with WebReg through the My Cornell portal, where they can view available sections, see real‑time seat counts, and monitor any holds attached to their account. Advisors play a vital role during the planning interval, confirming that prerequisite chains are satisfied and suggesting optimal course loads. The system also integrates billing information, automatically preventing registration if tuition or fees are overdue.