KSHSAA BY LAWS, Article 1, Membership, Sec. 5: Private schools which are not eligible for full membership in the KSHSAA, and which are not under suspension from this or any other state association, may be put on an “approved school list” and members of the Association shall be permitted to compete with schools on such list. Schools on the “approved school list” shall not be eligible to participate in Association-sponsored activities or tournaments or events conducted for the purpose of determining an official KSHSAA championship.

I guess these are the unclassified schools.