Tennessee Code Title 49. Education § 49-50-805

(a) In connection with an interscholastic athletic activity or event where membership in the Tennessee Secondary School Athletic Association is required, a student enrolled in a private school in this state is eligible to participate in such athletic activity or event only in accordance with the student's sex, as defined in § 49-2-802.

(b) This section does not prohibit a student whose sex, as defined in § 49-2-802, is female from participating on a team designated for male students if the school does not offer a separate team for female students in that sport.