A California "resident" is a person who has resided in the state for more than one year prior to the residence determination date. Under California law, San Diego State University must determine the residency status for tuition purposes of all applicants and students.You must reside in California for more than one year (366 days) before you will be eligible to be classified as a resident for tuition purposes. This page is for students requiring assistance with their residency status. Please select the statement that best describes you. If you do not submit requested information verifying eligibility for a resident classification, you will be classified as a non-resident for tuition purposes. They'll ask for a CA license, a CA-based bank, your rental agreement, proof of moving (a moving truck, gas receipts from a move, etc. Factors Considered to Determine Residency. California law requires all public colleges to determine if a students are CA residents or non-residents.