Selective Major

The selective status does not affect current Biology majors. Biology majors may switch among available biology majors based on the term of admission to UC San Diego. Change of major requests can be submitted via the Major and Minor tool on TritonLink. Please note, it may take a few business days for your request to be approved and for your record to be updated.

Non-biology majors who entered UC San Diego as freshmen may be eligible to apply for admission into a biology major. Please note that available biology majors will vary based on the term of admission to UC San Diego.

Consideration of non-biology majors for admission into a biology major is based on the Selective Major Admission requirements until the numerical limit is reached. To be considered for admission into a biology major, students must satisfy all criteria listed below.

Selective Major Admission Courses

• BILD 1 and 3
• CHEM 6A, 6B, 6C, and 7L
• MATH 10A or 20A and MATH 10B or 20B

Additional Criteria and Information

1. Complete all Selective Major Admission coursework, including transfer courses, with a “C-“ or higher, or with AP/IB/A-Level UC San Diego equivalent course credit.
2. Earn a minimum 2.5 GPA in the Selective Major Admission courses. Only Selective Major Admission courses taken at a UC with a letter grade will be factored into the screening GPA.
3. Apply, using the online application below, within the first 6 quarters at UC San Diego, during an active application cycle. Do not use Tritonlink to request a change of major.
4. Submit your application once the application opens. Day and time of application submission will be considered when making admission offers.
5. Current quarter grades will be taken into consideration for the applicable application cycle (e.g. fall grades will be considered for the fall application).
6. Applications will be reviewed after term grades are finalized (Thursday after Finals Week). Once all applications have been reviewed, applicants will be notified.
7. Students are expected to be aware of relevant timelines and deadlines, and to check their @ucsd.edu email account regularly. If offered admission, failure to take action by the specified date and time will result in a declined offer.

Selective Major Admission Application and Filing Deadlines

Current Biology Majors

Biology majors planning to add a non-biology major as a second major can send their completed Double Major Petition form to biousis@ucsd.edu for review and signature. More detailed instructions regarding form submission can be found on the biology advising site.

Non-Biology Majors

Non-biology students who entered UC San Diego as freshmen planning to double major with a biology and a non-biology major must first apply through the Selective Major Application process. If the student is admitted into a biology major, they then must add the secondary non-biology major through the Double Major Petition process.

Note if your non-biology major is selective, before accepting an offer for admission into Biology, speak to your current major department regarding implications of dropping your major as a result of attempting to declare two selective majors.

Please refer to the Non-Biology Majors drawer above for a complete listing of Selective Major Admission criteria, application, and deadlines.

If you have 150 or more units completed, in addition to the selective major application, you will need to submit a quarter-by-quarter plan in order to be considered for admission. You should submit your selective major application before submitting your quarter-by-quarter plan.

Students should reference the total units under "Crdts Pssd" on their academic history to determine if the quarter-by-quarter plan is needed. Current work-in-progress (WIP) units are not considered for purposes of the plan.

For those who need to submit a quarter-by-quarter plan, it will be evaluated by both the selective major department and your college to ensure satisfactory time to degree. After submitting your application, download and complete the quarter-by-quarter plan and submit it to biousis@ucsd.edu no later than the selective major application deadline for the quarter you are requesting admission. If your quarter-by-quarter plan is not received by the stated deadline, your selective major application will be considered incomplete and will be automatically denied.

After arriving to UCSD, and enrolled in courses, students who enter UCSD as freshmen may attempt to apply for admission via the selective major application process during an open application cycle.  Students who apply prior to matriculation to UCSD will not be considered for admission.

In 2017-18, 2018-19, 2019-20, 2020-21, 2021-22, and 2022-23 the School received an average of 100 applications per quarterly cycle and was able to offer admission to all applicants who met Selective Major admission criteria. While students can use this information to estimate chances of being admitted, meeting all eligibility criteria does not guarantee admission. Admission outcomes (e.g. the number of applicants, available seats, etc.) can change each quarterly application cycle.