There is no standardized test requirement for UC admission.  For more information: https://admission.universityofcalifornia.edu/counselors/freshman/minimum-requirements/examination-requirement/ 

    The California State University (CSU) will continue to temporarily suspend the use of ACT/SAT examinations in determining admission eligibility for all CSU campuses for the 2022-2023 academic year. This temporary change of admission eligibility applies for the following terms: Fall 2021, Winter 2022, Spring 2022, Fall 2022, Winter 2023 and Spring 2023 admission cycles. First-time freshmen must meet the following eligibility requirements: be a high school graduate or equivalent; complete the 15-unit comprehensive “a-g” pattern of college preparatory course; and earn a qualifying “a-g” grade point average (GPA) as described below. For more information: https://www2.calstate.edu/apply/freshman/Pages/first-time-freshman-guidance.aspx