On May 11, 2021, the University of California announced that all nine of its campuses will not consider SAT or ACT scores for fall 2021. The full statement reads:

UC will not consider SAT or ACT test scores when making admissions decisions or awarding Regents and Chancellor’s scholarships. If you choose to submit test scores as part of your application, they may be used as an alternative method of fulfilling minimum requirements for eligibility or for course placement after you enroll.

See the announcement here: https://admission.universityofcalifornia.edu/admission-requirements/freshman-requirements/exam-requirement/