A revised world anti-doping code that doubles the bans for cheats in sport has been adopted by the board of the World Anti-Doping Agency.
Global leaders passed the third version of the code at the end of three days of deliberation at the World Conference on Doping in Sport in South Africa.
The code governs competitive sports from athletics to football to cycling, and has been backed by powerful sporting bodies like the International Olympic Committee, world football's governing body FIFA, and governments.
As well as doubling the ban for those found guilty of doping, the revised code seeks smarter testing and targets support staff around athletes, such as errant doctors.
Athletes and sports bodies had called for stricter punishment for culprits, though doping controls struggle to catch them.
Less than one percent of checks give an abnormal result, though tests have jumped from 150,000 a year to 250,000 since WADA was created in 1999.