You must be continuously physically present in California for more than one year (366 days) immediately prior to the residence determination date. It is important for California income tax purposes that you make an accurate determination of your residency status.All documents used to establish residency must include: 1. The student's name (or parent's name if student is under 19 and unmarried). All students are classified as either a resident of the State of California or non-resident when applying for admission. Each campus admissions office is responsible for determining the residency status of all new and returning students based on the Application for Admission.