California Revenue And Taxation Code Section 75.23
(a) Notwithstanding any other provision of law, in the case of a supplemental assessment on property that has undergone a change in ownership, an exemption that was granted to that property on the current roll or the roll being prepared shall not apply to that property as of the date of the change in ownership if the transferee did not otherwise qualify for that exemption on the date of the change in ownership. This subdivision shall not be construed to preclude a transferee from qualifying, on and after the date of a change in ownership, for an exemption for that property that is otherwise provided by law. (b) Subdivision (a) does not apply to property that was granted the homeowners` exemption on the current roll or the roll being prepared.