So far as I know, they are not.
Congratulations on your new certifications!
In our state, the policy differs at each college. But I do know homeschoolers currently enrolled as dual credit students in community college courses. Homeschool students have to foot the bill themselves, though. But don’t be surprised if you have homeschoolers in your courses.
P.S. (Our family is not planning to go that route yet. Right now, we’re looking into CLEP for our son when he turns 13.)