Skip to main content
School of Biological Sciences School of Biological Sciences

Important Notice: The new Triton Student System (TSS) launches in mid-July, and replaces many student-facing systems, including the Schedule of Classes and enrollment (now "Booking") tools.  During the transition, students are encouraged to check Student Tools: Help & Resources and campus notices for updates and support. 

Need Assistance?

  • Office Hours support: Zoom
  • Phone support: (858) 246-4357
  • In-person support: Applied Physics & Mathematics, Room 1313, First Floor (Map)

Technical Issues: Contact the ITS Service Desk at tss@ucsd.edu.

Enrollment and Waitlists

Students should enroll promptly at their scheduled booking window(s) to ensure their best chances of booking in desired courses. Check Triton Student System (TSS) for booking window start times.

Lecture Courses

The School of Biological Sciences follows university enrollment and electronic waitlist processes for all lecture courses. Students should use Triton Student System (TSS) for add/drop/change requests through Friday of Week 2, the university's official deadline to add classes. Students may continue to drop without a "W," change grading option and number of units (if applicable) via Triton Student System (TSS) through Friday of Week 4. Students may continue to drop with a "W" via Triton Student System (TSS) through Friday of Week 6.

If on the waitlist for a course, the waitlist system runs automatically, in real time, through Friday of Week 2, adding eligible students in the order that they appear on a space available basis. After Friday, a student's position on the waitlist is no longer valid.

The School will only consider late adds (Weeks 3-10) on a space available basis and with the permission of the instructor. Late add requests may be submitted via the UC San Diego Triton Enrollment Authorization (TEA) tool. To access TEA, log in to Triton Student System using your Active Directory single sign-on (SSO) and then search for "TEA" to navigate to that tool.

If a student's late add request is approved, the student must book the course themselves. TEA approval does not automatically enroll students in the course. Late adds are not guaranteed. 

Please review Undergraduate Enrollment for additional information.

Lab Courses

There are special regulations, procedures and deadlines associated with booking biology lab courses. Please see Lab Course Information for details.

Non-UC San Diego Student Enrollment

Non-matriculated individuals have a number of options for which to take individual classes at UC San Diego. 

If a student is administratively dropped from a course (e.g. due to non-payment, missing prerequisites, etc.), their seat in the course or spot on the waitlist is relinquished to the next student eligible to enroll in the course. The School does not guarantee enrollment to students who have been dropped from courses.
Questions? Contact Student & Instructional Services (Urey Hall 1510) through the Virtual Advising Center (VAC) or by phone at 858-534-0557