I don't believe so.
You have to have a BA/BS and there are some state restrictions:
Administrator Requirements: B.A. or B.S. degree
Restrictions: Is not available for NJ (Grades 8-9), SC (Grade 2), and Dallas ISD.
From here.
When I bought the materials, I did have to say I had a BA but I didn't have to produce any documentation. I don't recall any statement when I filled out the purchase order that said I homeschooled (but it likely wouldn't have registered if I did).
I do think that if there were a homeschool only requirement, they'd have it listed.
I am not in NC, so that wasn't an issue. I know NC requires testing annually, so the two testing companies I've used (Triangle & Bayside) are both out of NC.