This proposal says that school sports teams for women and girls must be limited to people whose sex at birth is female. It ties this rule to the federal law that bans sex discrimination in schools that get federal money (Title IX). It defines sex based only on reproductive biology and genetics at birth, and says letting someone whose sex at birth is male play on a girls’ or women’s team would break that law .

Key points:

• Who is affected: Public and private schools and colleges that receive federal funding .
• What changes: Sports teams labeled for “women” or “girls” could not include anyone whose sex at birth is male; sex is defined by reproductive biology and genetics at birth .
• How it’s enforced: Violations would count as breaking Title IX rules for athletics .