The UCSA fee is an optional fee that funds the University of California Student Association, the student-run and state-recognized organization that represents all 230,000+ UC undergraduate students at the University, state, and federal levels. The total fee is $7 (each academic year), split into three installments and billed at the beginning of each quarter.

More information about the UCSA fee can be found here: https://ucsa.org/ucsa-fee/. 

If you would like to opt-out of the fee, please visit: https://student-sis.ucsd.edu/studenttuitioninformation/