Change of Major Policy

The PSTAT Department is accepting all Change of Major applications online.

  1. The Summer 2022 Change of Major application cycle is now open and will close Friday, September 9th at 5:00pm. If you would like to switch to a PSTAT major or pre-major this quarter, or if you are a PSTAT pre-major and want to declare the PSTAT full major, please complete this Google form to apply for the major change. 
  2. In order to complete the Google form, you will need to upload the following items:
    • a copy of your unofficial transcript
    • a PDF or picture of your proposed course schedule
    • a completed PSTAT Pre-Major Checklist form (note: if you are petitioning to switch to a pre-major, please designate which pre-major courses you have taken)
  3. Submissions to the Google form will take the department 4-6 weeks to be reviewed. If your major change request is approved, you will be emailed an invitation to complete a Change of Major Petition via DocuSign for the major change you would like to make:
  4. For those who wish to double major with Statistics and Data Science, you must first apply as the BA. After you have shown that you can handle the rigor of a double major, you can apply for the BS at a later time.

The PSTAT Department does not accept any Change of Major Petitions via email.

It may take the department 4-6 weeks to review Change of Major applications.

Note: All petitions to switch into the Financial Math and Statistics majors must be sent to the Math department.

PSTAT will not endorse any change of major petitions until the following qualifications have been met:

  • Student must have at least two MATH courses from UCSB on their transcript before they will be considered
  • Student must show that they are able to pass the majority of their MATH or PSTAT courses from UCSB in one attempt. Courses which have a 'W' grade are considered to be a first attempt; if the course is then repeated after having received a 'W' grade, this is considered a second attempt. If students took a 'W' grade due to extraordinary hardship, PSTAT will consider an exception to this policy with the attachment of supporting documentation
  • Student must demonstrate that they will be able to graduate within normative time



If you still have at least one math course left for the preparation for the major, you must take that one math course in addition to PSTAT 120A. If you do not have any math courses left, you must take PSTAT 120A and PSTAT 120B. Students are able to enroll in UD PSTAT courses during pass 3 if there is room. If the course is full, you may add yourself to the waitlist during pass 3.

Students that are struggling with math courses early on are strongly encouraged to pursue a major that is a better fit. The college advisors will work with you in finding appropriate alternatives. If you nonetheless still wish to pursue a PSTAT major, you may continue to attempt to take courses; once you have proven that you can regularly pass a UD PSTAT course in one attempt, you may reapply and be considered for the major. The department suggests you have at least two quarters of PSTAT courses passed within 1 attempt on your transcript before you apply. Please be aware that, as you will not be a major, you will not have priority registration and may find it difficult to enroll in required courses without going through the waitlist process.

If the College or the Department has requested that you submit a second Change of Major Petition due to a processing error with a previous petition, please submit the second petition to the Google form linked above.

If you have been advised by the college that you need to submit a Change of Major Petition as soon as possible, PSTAT will accept the petition so long as you have an email from a college advisor stating that you need the petition as soon as possible. If you speak with the advisor in person, please ask them to write an email to you stating you will need to submit a petition as quickly as possible, and you may turn in this printed email along with your petition to the front desk.