To prohibit the participation of males in athletic programs or activities at the military service academies that are designated for women or girls.

This bill stops males from taking part in athletic programs or activities at military service academies that are meant for women or girls. It requires the Secretary of Defense to make sure the United States Military Academy, the Naval Academy, and the Air Force Academy follow this rule. The text defines a person's sex based on their reproductive biology and genetics at birth. Even with the ban, males are still allowed to train or practice with a women's or girls' team under certain conditions. Specifically, they can practice as long as no female loses a roster spot, practice opportunity, competition chance, scholarship, school admission, or any other benefit.