If there is a balance, please provide a check from the PI made payable to UC Regents and send to AP zc:1050 attn: Candy Tan. (EX: Original Advance was for $400, total used $375, payee owes UC Regents $25) 

If your study went over the total amount requested in the advance you'll need to submit a separate reimbursement request for the total paid out-of-pocket using an HS Reimbursement Request Form