The Rio Olympics doping laboratory, which was briefly stripped of its credentials two months before the Games, has now finished undergoing a series of stress-tests, with IOC officials saying it now meets the toughest of internationals standards.
The World Anti-Doping Agency reinstated the lab's credentials in July, ending a month-long suspension.
The IOC's medical chief says the lab has since passed a very intensive stress test, with blind samples tested for all kinds of substances.
Rio's lab has been processing blood and urine tests during the Games.
