Here is the response (the relevant part, anyway) from the College Board:
Starting with the August 2021 SAT, College Board will no longer allow students under 13 to register for weekend SAT administrations. Federal regulations prevent children under 13 from creating an online account, which is required for SAT registration. However, College Board will still support a set of options for those few young students interested in taking an assessment during the school year. We have the following in-school testing options still available to students:
? PSAT 8/9 – Available from September - April
? PSAT 10 – Available from February - April
? PSAT/NMSQT – Three test administrations available in October
? SAT School Day - Administrations available in October, March, and April
? For organizations looking to conduct above-grade testing, we encourage working with local schools and districts to implement the above assessments.
