Caster Semenya will be allowed to compete without restriction until the Federal Supreme Court of Switzerland has passed judgement on a new IAAF ruling.
The Court of Arbitration for Sport (CAS) ruled that the IAAF could implement a regulation that would require Semenya to take medication to lower her testosterone levels in order to compete against women in track events ranging from 400metres to a mile.
However, the two-time Olympic 800 metres champion has continued to challenge the ruling and lodged an appeal in Switzerland last week.
The 28-year-old asked the Swiss Federal Supreme Court to set aside the decision in its entirety.
It has now been confirmed that the IAAF must suspend its implementation of the regulations until the Swiss Supreme Court, which will receive submissions from the body, has made a ruling.
Semenya, who ruled out retiring after winning the 800metres at the Diamond League event in Doha last month, two days after the CAS ruling was announced, will be able to compete for the time being.