Olympic president Kirsty Coventry was elected to the role one year ago
The women's category of Olympic sports will be limited to biological females from 2028.
The International Olympic Committee (IOC) says eligibility will be determined by a "once-in-a-lifetime" sex test, which would prevent transgender women and those with differences in sexual development (DSD) who have gone through male puberty from competing.
It will take effect from the Los Angeles Olympics.
IOC president Kirsty Coventry said the policy was "led by medical experts".
