I'll be interested to know what you find out. Our school does something similar. In the past, 10th graders have taken the PLAN, but starting this year, they'll take the ASPIRE (my understanding is that it does replace both EXPLORE and PLAN). However, in 11th grade, if you think your child is likely to be in competition for NM, you sign him or her up for the PSAT, and if not, he or she takes a practice ACT (like your school, parents choose, but they aren't given much information). In addition, this year our state will start testing with the PARCC. I'm really not sure what will happen with my 7th and 9th grade sons, and our school system does a pretty bad job of communicating testing options. In some ways, I wish that ds14 could take a practice PSAT in 10th grade, because that is when the new PSAT is coming out, and it would be helpful to take a run at it when it doesn't count. Good luck sorting it all out, and for those of us a few years behind, let us know what happens!