Beyond the standard 16-week fall and spring semesters, some CU Boulder departments now offer classes during four-, five- and eight-week special sessions:

  • 4-Week Sessions 1–4
  • 5-Week Sessions 1–3
  • 8-Week Sessions 1 & 2

These sessions occur during the regular fall and spring semesters, but because their start and end dates are different than the full-semester classes', their add, drop and withdrawal deadlines also differ. See the special session calendar.

If you're taking a special session class, it's your responsibility to familiarize yourself with the academic calendar for your special session.

Drop a Special Session Class

If you're registered for multiple classes in a single special session (e.g., Boulder 8-Wk Session 1), you have until the drop deadline for that special session to drop one in the student portal as long as you remain in the other(s).

Withdraw from a Special Session

If you want to drop all classes in a given special session (e.g., Boulder 8-Wk Session 1), even if it's a single class, that means you're withdrawing from that session. Please see our Withdraw from a Semester page for details about academic and financial considerations.

Before you complete the withdrawal form, carefully review the special-session withdrawal calendar (see Resources sidebar) to check the withdrawal and refund deadlines.

If you have any questions or difficulties while completing the form, contact

Need to Double-Check Your Session?

  1. Log in to Buff Portal.
  2. On the registration checklist card, select "Register for classes."
  3. Select "Continue."
  4. Scroll down to view your class schedule, then select the class to view the class details.
  5. The class's session is listed under class preferences.