UC San Diego students are allowed to enroll in maximum of 12 units per session. Any student wishing to enroll in more than 12 units per session must obtain authorization from their college. UC San Diego students enrolled in 6 units are considered full time status.

High school students are allowed to enroll in up to 8 units per session. For high school students, 4 units per session is considered full-time and is the recommended course load.

International students (currently outside the U.S. and will be applying for a U.S. visa after receiving immigration documents from UC San Diego) must be enrolled in a minimum of 6 units per session to maintain visa status.

All other visiting students are allowed to enroll in 15 units per session.