The association of boxing commissions medical committee has a policy for this already in place.
For male to female transition after puberty:
Sexual reassignment surgery, at least two years of hormone therapy, and a letter from the doctor. All to be reviewed by the commission and the medical board of the ABC.
It's just their policy recommendation, not binding on the commission members. But it is pretty normal for sports. It's practically identical to the policy in the Olympics.
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