The world governing body of diving voted to prevent trans athletes from competing in elite events.
If trans athletes have gone through any part of male puberty, they won't be allowed to compete.
Swimming and Diving are covered by the policy.
The ruling was not on according to the speaker.
"I was furious," he told iNews. "Anyone that's told that they can't compete or can't do something they love just because of who they are, it's not on.
It's something I'm very passionate about. Trans people are given the chance to share their side of the story.
He has spoken out about issues related to the lesbian, gay, bisexual and queer community.
An "open" category will be established for athletes whose gender identity is different than that of their birth sex.
Lia Thomas would not be allowed to participate in the female category at the Olympics because of the policy.
A report by a scientific panel said that going through male puberty meant trans women retained a "relative performance advantage over biological females".
The organisation is trying to protect the rights of athletes to compete, but also protect competitive fairness, according to the president.
Fina will always welcome athletes. Everyone will have the chance to compete at an elite level if the category is created.
This is the first time it has been done and Fina will need to lead. I want athletes to feel like they are part of the process.
Sharron Davies, who was a swimmer for Great Britain, said she was proud of her daughter.
The new policy was called "discriminatory, harmful, unscientific and not in line with the 2021 IOC principles" by 'Athlete Ally', who organised a letter of support for Thomas in February.
Anne Lieberman said that the eligibility criteria for the women's category would not be enforced without violating the privacy and human rights of athletes looking to compete in the women's category.
The inclusion policies of other world governing bodies are currently being reviewed.
The International Rugby League does further research on its policy regarding the exclusion of trans players from women's internationals.
According to Lord Coe, the sport could follow swimming's example and adopt a new eligibility policy.