Major Declaration for SEAS sophomores (class of 2028) is available Tuesday, October 21 to Friday, October 24, 2025. 

Follow these instructions to declare your major and (optional) minor(s):

1. Click the link below
2. Enter uni and password to log in
3. Select major from drop-down menu*
4. Select minor(s) from drop-down menu (optional)
5. Click Submit
6. Check your email for confirmation and information about advising in your new department

You may change your declarations at any point before 11:59 p.m. on Friday, October 24, when the portal will close.

Please click HERE to declare your major.

*Note: If you wish to declare Operations Research: Analytics, please select Operations Research in the drop-down menu. The IEOR Department will monitor academic progress for your chosen major.