I am also curious ...

You can register a new team if your school sponsor you. Or register as non-school competitors.

Anyone know why Roberto Clemente MS isn't registered for Mathcounts?

https://www.mathcounts.org/programs/registered-competition-schools

Also, if your middle school isn't registered, are you interested in getting your student involved in a future year? Fewer than half of MoCo middle schools are registered this year.