I got an email back from NWEA. the person I spoke to checked and A.C.C.E.S. is indeed a legitimate MAP testing service. The person I spoke to spoke to the person (ha ha ha) who manages the A.C.C.E.S. account. He said just to verify that they allow those outside of Florida to test, which I have done, and got an affirmative so looks like I'll be signing up DS to take it in the spring.