Title 20, Chapter 2, Section 641
As used in this article, the term:
(1) "Local school system" means all county, city, independent, and
other public school systems in existence in this state.
(2) "Parents" means the natural or adoptive parent or parents,
legal guardian, or other person or persons standing in loco
parentis to or having legal custody of a child eligible and
entitled to receive an education grant under this article, who is
actually paying or who will pay the tuition cost of attendance of
such child at a school which qualified such child to receive a
grant pursuant to this article.