Student eligibility in interscholastic sports.

Requires, for purposes of interscholastic athletic events, state educational institutions and certain private postsecondary educational institutions to expressly designate an athletic team or sport as one of the following: (1) A male, men's, or boys' team or sport. (2) A female, women's, or girls' team or sport. (3) A coeducational or mixed team or sport. Prohibits a male, based on the student's biological sex at birth in accordance with the student's genetics and reproductive biology, from participating on an athletic team or sport designated as being a female, women's, or girls' athletic team or sport. Requires state educational institutions and certain private postsecondary educational institutions to establish grievance procedures for a violation of these provisions. Establishes a civil action for a violation of these provisions. Provides that state educational institutions and certain private postsecondary educational institutions are not subject to liability in a civil, administrative, disciplinary, or criminal action for acting in compliance with these provisions.