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CODO (Change of Major) Process

Ready to declare your major?  The Change of Degree Objective (CODO) allows a current Purdue student to transfer from one school or college to another within Purdue.  This is the process by which Exploratory Studies students move to their desired majors!  In order to successfully CODO, follow these simple steps:

How to CODO out of Exploratory Studies 

  1. Review the CODO requirements for your desired major and confirm that you have met them.  Read the whole page and click on any additional information links.  CODO requirements can be complicated!
  2. Complete any departmental CODO procedures.  These can include: filling out an application, submitting essays, attending a CODO meeting with a department advisor, watching a video presentation, etc.
  3. Pay attention to whether the major is listed as "SPACE AVAILABLE ONLY." This means that:
    • CODO applications and request submissions are due by 5:00 p.m. the Thursday of finals week in a given semester. 
    • The GPA listed to CODO is the bare minimum needed to apply.  This GPA alone may not be high enough to be competitive against other applicants.
  4. Make a CODO appointment with your CURRENT Exploratory Studies Advisor in Boiler Connect.  During the meeting, your advisor will double-check that you meet the CODO requirements, check your progress on any CODO applications or procedures, then submit your online CODO request.
  5. You will receive e-mails from the "noreply@purdue.edu" address as it moves through each step.
  6. Accept your CODO when prompted in one of these e-mails. This is your confirmation that you want your request considered.
  7. The new college or school will review your CODO application.  They can approve it, deny it, or hold it .  If they do hold it, it means they are waiting for your end-of-semester grades before considering your CODO request.  Keep an eye on your e-mail.  They may contact you for additional information, entrance surveys, etc.
  8. Once the new college or school approves your CODO application, verify the requested change using the e-mailed instructions. 
  9. Your new advisor's name will also be listed in the approval e-mail you receive from "noreply@purdue.edu."  Look up their contact information on the Purdue Directory
  10. Confirm your CODO has been processed by the Registrar by checking myPurdue > Academics Tab > Academic Profile area (right side of the page).  

How to CODO into Exploratory Studies

Are you a transfer or current Purdue student who is still exploring academic options?  That's okay! If you want to investigate your academic and career possibilities at (and after) Purdue, then Exploratory Studies may be the right place for you. 

For more information about a CODO to Exploratory Studies, contact your current academic advisor at Purdue or Exploratory Studies at (765) 494-0843.      

NOTE: All students CODOing into Exploratory Studies during their first year of college MUST take EDPS 10500 “Academic & Career Planning.”   


To be eligible to CODO into Exploratory Studies, a student must have earned 83 or fewer credits that count toward the calculation of Exploratory Studies total credits.

Credit counted toward this total includes:

  • Credits by exam (AP, CLEP, Purdue advanced credit exams, foreign language credit, etc.)
  • Transfer credit (from dual-credit or college sources)
  • Pass/no pass credits
  • Courses in which students have earned a grade of F
  • Currently enrolled courses

Credit that is not counted toward this total includes:

  • Course withdrawals (W)
  • Previous attempts of repeated courses

Please note:

  • If students can CODO from their current program to the degree-granting college they are seeking at the end of the current semester, they are not eligible to CODO to Exploratory Studies.
  • If students are unable to CODO to that degree-granting college once grades post, then they can CODO to Exploratory Studies for the next semester (provided they meet program guidelines).
  • If students have already enrolled in classes for their last semester of eligibility in their current college and plan to CODO to their college of choice at the end of that semester, they must wait for grades to post and CODO directly to their college of choice and then register for the next semester’s classes with their new advisor.