And see, in some instances, this is how state graduation requirements are codified, which is why the policy of inclusion of those middle-school classes has to happen on transcripts. Otherwise, they'd have simply RUN OUT of math coursework to take in the first place.
It depends on how it's written up, and where-- if it's state law, there's not much wiggle room. If it's department of education "policy" then that means exceptions can be granted.
So yes-- if your state law requires "X years of high school mathematics" then, er-- coming into 9th grade as a calculus student means that there may be no effective means of satisfying the requirement in a technical sense. Not unless classes taken prior to entry into high school are allowed to be shown on the transcript, if they grant an exemption allowing the student to take distance college coursework, or something else like that. DD was allowed to use AP Stats, for example, though AP Computer Sci/Econ would NOT have counted.
Unfortunately, this is one of those ways in which GT students challenge the ways in which educational programming supposedly "works." The problem here is that nobody thought about this when writing the rules and the policies, which leave a sort of "undefined" gap between them that kids like this fall into.
