Please note that changing your class schedule after your I-20 has been issued may invalidate your I-20. You will not be able to enter the US if the start-date on your I-20 does not match your Summer Session start-date. Contact Summer Sessions before making any changes to your schedule.
After You Register:
Once you are registered, you will receive your UC Berkeley student ID number (SID) and personal identification number (PIN). This information is emailed to you, password protected, to the email address you provided on your application. Please check your spam folder if you do not receive the email within a week.