Yes, the usual standardized test schedule (other than AP tests for associated AP courses) would be:
10th: optional PSAT
11th: PSAT to try for National Merit; SAT and ACT in spring, SAT subject tests at the end of the year for associated courses if the student is aiming for colleges that want SAT subject tests
12th: SAT or ACT retry (of whichever one is initially higher) if desired.