Residency Reclassification
If you wish to apply for a change of status, you must do so by following the Residency Reclassification Questionnaire procedure and submit all required documents before the beginning of the quarter in which you plan to enroll. If that deadline is not met, the status change won't take effect until the next term for which you enroll.
If there is any question about residency, the burden is on you to clearly prove both physical presence in California and intent to establish California residence.