The correct answer is 12. World swimming's governing body has adopted new rules for transgender athletes, only permitting swimmers who transitioned before age 12 to compete in women's events. FINA members voted 71. 5% in favor of the new "gender inclusion policy". It will apply to all its events from 20 June 2022. The 24-page policy also includes proposals for a new "open competition" category. Important PointsThe World Professional Association for Transgender Health just lowered its recommended minimum age for starting gender transition hormone treatment to 14 and some surgeries to 15 or 17. The International Cycling Union (UCI) increased the transition period on low testosterone to two years, and lowered the maximum accepted level of testosterone.