NCAA Transgender policy for trans women:
A trans female treated with testosterone suppression medication may continue to compete on a men’s team but may not compete on a women’s team without changing it to a mixed team status until completing one year of testosterone suppression treatment.
The Olympics did use testosterone levels to qualify competitors in the past but recently changed their guidelines and are now passing the buck and pushing the decisions to determine who is qualified to compete to the individual sports governing bodies.
The International Olympic Committee allows transgender female athletes to compete in the Games if they reduce their serum testosterone levels below 10 nanomoles per liter for a year and maintain the lower levels during their careers. Transgender men can compete without restriction.
According to World Athletics, track and field’s governing body, the general testosterone range for cisgender women is .12 to 1.79 nanomoles per liter, compared with 7.7 to 29.4 nanomoles per liter for men after puberty. In other words, World Athletics says, the lowest level in the men’s range is four times greater than the highest level in the women’s range.
Separately, track and field has guidelines specifically for intersex athletes, competitors born with biological factors that don’t fit typical descriptions for males or females. Those who possess a rare chromosomal condition are required to reduce their testosterone levels even lower, to five nanomoles per liter, in races from the quarter mile to the mile.
One of the athletes affected is Caster Semenya of South Africa, the two-time Olympic champion at 800 meters, who was classified as female at birth, identifies as a woman and is challenging the track and field policy in an ongoing case.
The I.O.C. has been widely expected to require transgender Olympic athletes to adhere to the five nanomole limit after the Tokyo Games.
According to new research, which examines available studies of testosterone suppression, evidence shows that even a reduction to one nanomole per liter — squarely within the average female range — only minimally reduces the advantages of muscle mass and strength retained as men transition to women.
That undermines the attempt of sports organizations to set universal guidelines, said Lundberg, a co-author of the study, which is undergoing peer review. He recommends that individual sports set their own policies.
“It is easy to sympathize with arguments made on both sides,” Lundberg said of gender identity versus biology. But, he added, “It is going to be impossible to make everyone happy.”