Ainp new rules 2018

You're referring to the new rules introduced by the International Association of Athletics Federations (IAAF) in 2018, commonly known as the "Hyperandrogenism Rule" or "Doping Rule".

In November 2015, the IAAF introduced a new rule that required female athletes with high levels of testosterone to undergo hormone therapy to reduce their testosterone levels to below a certain threshold (5 nanomoles per liter) in order to compete in events above 400 meters.

The rule was introduced after Indian athlete Dutee Chand was banned from competing in international events in 2014 due to her naturally high testosterone levels. Chand's case sparked a global debate about the rule, with many arguing that it was discriminatory and unfair.

In 2018, the Court of Arbitration for Sport (CAS) ruled that the IAAF's Hyperandrogenism Rule was invalid, stating that it was "discriminatory and disproportionate" and that it did not meet the requirements of the World Anti-Doping Code.

The CAS ruling meant that the IAAF's Hyperandrogenism Rule was no longer in effect, and female athletes with high testosterone levels were allowed to compete without undergoing hormone therapy.

However, in 2019, the IAAF introduced a new rule that requires female athletes with high testosterone levels to undergo hormone therapy in order to compete in events above 400 meters. The new rule was introduced after the IAAF conducted a study that found that female athletes with high testosterone levels had a competitive advantage in certain events.

The new rule has been criticized by many, including athletes and human rights organizations, who argue that it is discriminatory and unfair. The rule has also been challenged in court, with several athletes filing lawsuits against the IAAF.

It's worth noting that the IAAF's rules are subject to change, and the organization is currently reviewing its rules and regulations in response to the ongoing debate and controversy surrounding the Hyperandrogenism Rule.