Dec 06, 2025  
2025-2026 University Catalog 
    
2025-2026 University Catalog

Environmental and Ecological Engineering Major Change (CODO) Requirements

Location(s): West Lafayette


Major Change (CODO) Requirements


Purdue students interested in changing their major should meet with their current academic advisor to discuss their options and begin the online process. Once the student’s Major Change (CODO) has been processed, students will receive an email with instructions to authorize the change.

Students will need to meet the criteria below to be eligible for this major. A student’s catalog term, typically the semester you started at Purdue, will be used to determine the Major Change criteria that applies to you. Students can find their catalog term at the top of their MyPurduePlan below the degree progress bar.

This major change information below is for the catalog term you are currently viewing; see the University Undergraduate Academic Advising Major Change (CODO) website for prior catalog term criteria, more about the major change process and FAQs.

Students changing their major to a space restricted program, as designated by SPACE AVAILABLE BASIS ONLY, need to have their Curricular Change Request (CCR) submitted by their home college/school by 5pm the Thursday of Finals week for requests effective the following term to be considered.

General Requirements


  • Minimum Semesters:  1
  • Minimum Purdue Main Campus Credit Hours (West Lafayette/Indianapolis):  12
  • Minimum Cumulative GPA:  2.5

Other Requirements


  • Students are accepted for effective terms FALL, SPRING, and SUMMER.
  • Students are admitted on a SPACE AVAILABLE BASIS ONLY after a holistic review.  Space is limited.
  • Students must be in good academic standing (not on academic notice).
  • Of the 12 required credits taken at Purdue, 6 credits must be completed from the following technical and math courses: [MA 16200  or MA 16600 ], CHM 11510  and (CHM 11520  or CHM 11530 ), PHYS 17200 , or required engineering course at the 20000 level or above with a 2. 5 GPA or better.
  • Intro to Engineering course options (typically ENGR 13100 and ENGR 13200):  If taken prior to CODO, these grades will be included in the calculation of courses specified under “Course Requirements” and must meet the 2.0 GPA AND C- or better.  See allowed course substitutes on the First Year Engineering Curriculum Committee approved list.
  • Calculated GPA of engineering courses (20000 level and above) must be minimum 2.0, if taken.  Applicable subject areas are: AAE, ABE, BME, CHE, CE, CEM, ECE, EEE, ENGR, IE, IDE, ME, MSE, NUCL.
  • Students are limited to no more than 2 attempts to CODO into EEE.
  • Note: CHM 11610  and (CHM 11620  or CHM 11630 ) are degree requirements in Environmental and Ecological Engineering and completion before CODO is recommended.
  • Note: Only appropriate courses from the First Year Engineering Curriculum Committee approved list will be allowed to substitute for the Course Requirements above. 

Student Next Steps


Students can contact an EEE advisor by emailing EEE@purdue.edu to learn more and/or schedule an appointment.