Booking Your Classes

Last Updated: July 20, 2026 4:46:46 PM PDT

Find information and links for booking your class schedule at UC San Diego.

Important news

Student enrollment continues with current systems for Summer Session 2026.

The new Triton Student System (TSS) is now live, changing some of the information set out below.

Log into TSS (sis.ucs.edu) to find available classes and to book your courses for Fall 2026. For details, see the how-to pages linked here, and TSS Student Info.

Undergrad booking (Fall 2026)

Undergrad enrollment (Summer 2026)

Enrollment Checklist
What to Do Before Enrolling in Classes
How to Enroll in Classes
How to Add a Class
How to Drop a Class
How to Change a Grading Option or Number of Units per Class
How to Wait-List a Class
Special Enrollment: Part-time study, repeating a class, special studies, classes at other campuses, and UC Online

Graduate enrollment (Summer 2026):

Enrollment Checklist
How to Add a Class
How to Drop a Class
How to Change a Grading Option or Number of Units per Class
How to Wait-List a Class
Special Enrollment: Half-time study, repeating a class, special studies, classes at other campuses, and UC Online

Special types of enrollment / transferring courses:

Calendars:

Quarterly Timeline With Deadlines
Enrollment and Registration Calendar 2025-2026 (includes 2026 Summer Sessions)
Booking and Registration Calendar 2025-2026 (starting Fall 2026)
Enrollment/Booking and Registration Calendars for other academic years
Summer Session Calendar

Textbooks:

Where to Buy Textbooks

Tool help:

Withdrawal:

Withdrawing from UC San Diego

Writing requirement:

UC Entry Level Writing Requirement

Tools for enrolling in
Summer 2026 classes

Tools for booking your courses for Fall 2026 will be available soon. Use these tools for enrolling in summer courses.

WebReg (register, add, drop)

Schedule of Classes

Enrollment Authorization (EASY)

If you have questions, contact: