Test scores are required unless you have a grade point average (GPA) above 3.00 and are a resident of California. The CSU uses a calculation called an Eligibility Index that combines your high school grade point average with the score you earn on either the SAT or ACT tests. Additional Information with this link.
The minimum required GPA is 3.0 for California residents, 3.4 for nonresidents; this is the same at each UC campus. While there are no minimum test scores required, all applicants must complete either the ACT with Writing or the SAT Reasoning exams.