Dates and Deadlines
Winter Session 2025
Course section numbers 013W – 014W 
Monday, October 14
Winter Session courses available to search 
 
Monday, November 4
(12:01 a.m.)
Winter Session registration opens &²Ô²ú²õ±è;
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All current students may enroll in Continuing Education (CE) classes, which includes Winter Session, starting on this date, regardless of your assigned Main Campus enrollment dates.
Tuesday, December 17
(12:01 a.m.)
Winter Session courses are viewable in Canvas for waitlisted and enrolled students
Thursday, December 19
(12:01 a.m.)
Classes begin
Thursday, December 19
(11:59 p.m.)
Last day to join a waitlist 
Last day to add a class
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Thursday, December 19
(11:59 p.m.)
Last day for waitlist auto-enrollment
The system will auto-enroll students in their waitlisted course if a seat becomes available, they are eligible, and next on the waitlist prior to this deadline.
Starting December 20 at 12:01 a.m., students on the waitlist are no longer auto-enrolled in the course and late add approval from the instructor is required at this time to be enrolled in the course. Approval is rarely granted and is at the discretion of the instructor. Â鶹ÒùÔº will need to fill out a and attach the instructor's approval to be added to the course. If granted approval and after completing a CE Course Request form, select Spring under Course Info > Session and 2025 under year. Deadline December 20 at 4:30 p.m.
Friday, December 20
Class waitlists are canceled
Waitlisted students lose access to online course materials within 48 hours of being dropped.
Friday, December 20
(4:30 p.m.)
Last day to submit instructor approval for a late add
Contact the course instructor. If approved, attach emailed approval to a . Approval is rarely granted and is at the discretion of the instructor.
Friday, December 20
(11:59 p.m.)
Last day to drop an individual class without penalty*
For directions on how to drop a class, refer to the Office of the Registrar's page Drop a Class; no W grade is recorded or tuition assessed .
Important: If you are having trouble dropping a course in Buff Portal, please forward your drop request to ceregistration@colorado.edu for assistance. Email requests received by the deadline will be honored.
Sunday, December 22
(11:59 p.m.)
Last day to drop with 60% tuition adjustment*
For directions on how to drop a class, refer to the Office of the Registrar's page Drop a Class; a W grade is recorded and 60% tuition refunded.
Sunday, December 29
(11:59 p.m.)
Last day to drop a Winter Session class via Buff Portal**
For directions on how to drop a class, refer to the Office of the Registrar's page Drop a Class; a W grade is recorded and full tuition and fees are assessed .
Sunday, December 29
(11:59 p.m.)
Last day to change a class's grade mode to or from pass/fail 
This change can be made using ,  or by emailing ceregistration@colorado.edu.
Wednesday, January 8
(11:59 p.m.)
Last day to withdraw from all courses in the session^
Â鶹ÒùÔº can submit their request via the  online withdrawal form or by emailing ceregistration@colorado.edu; a W grade is recorded and full tuition and fees are assessed.
Important: If you are only in one Winter Session class, this is the most common action.
Wednesday, January 8
(11:59 p.m.)
Last day to petition to drop individual classes late 
A W grade is recorded and full tuition and fees are assessed.
Â鶹ÒùÔº with questions about petitioning should connect with their college and academic advisor, or schedule an appointment with a to discuss further.
Â鶹ÒùÔº who withdrew due to extenuating circumstances may be eligible to for financial consideration and should connect with a to discuss further.
Important: This is uncommon, and only applies if you are in more than one Winter Session course.
Thursday, January 9
Classes end
Important: If you are having trouble dropping a course in Buff Portal, please forward your drop request to ceregistration@colorado.edu for assistance.
* Â鶹ÒùÔº may be eligible for a possible .
** Drop by 11:59 p.m. online using . If you are concerned that your drop request on Buff Portal may not have gone through correctly, please email ceregistration@colorado.edu before the deadline to request to be dropped from your course. A grade of W will appear on your transcript.
^ Withdraw from all Winter Session courses between December 30 through January 8, 2025 (11:59 p.m.) by emailing ceregistration@colorado.edu or submitting the online withdrawal form. A grade of W will appear on your transcript and there is no refund.
is designed to provide students who experience unavoidable, extenuating circumstances, the opportunity to waive a University policy that, if enforced, would result in unsatisfactory academic progress or financial consequences. Â鶹ÒùÔº with questions about petitioning should connect with a to discuss further. Â鶹ÒùÔº who withdrew due to extenuating circumstances may be eligible to for financial consideration and should connect with a to discuss further.
Grade replacement is applied automatically at the end of each term for eligible courses and students. More information on retaking a course for grade replacement can be found on the Office of the Registrar’s site here.