I spoke to the superintendent's office today, and got the impression that they don't have a clue what they're doing, but I wrote down the name of the person I spoke to and what she said so I can use it later on, if it comes down to that. She had said that they have no problem with Evangeline entering first grade if she's already covered the kindergarten material. (Ha! This 5-year-old whizzed through addition and subtraction flash cards earlier today. In kindergarten, you only need to know your numbers.)
I'm calling the state Department of Education later today, I hope, to see if I can get info on exactly which statutes cover homeschooling and transfer into public schools.
I'm probably putting more effort into this than I need to, since the charter school is multi-grade level and they'll test Evangeline before the start of school to establish her baseline, but I'm still concerned about her being filed as K and having to spend an extra year in school if we end up staying in public schools for the rest of her education. (Like I said earlier, I'd rather homeschool her all 12 years, if possible, but we don't all agree on that as a family.)