Track and field's governing body will re-introduce four-year bans for serious drug violations from 2015 and will be pushing the World Anti-Doping Agency to do the same.
In a vote by acclamation at the IAAF congress, member federations backed the leaders in seeking tougher WADA sanctions, saying it's ready to press ahead on its own if other sports refuse to upgrade the sanction from two years.
Athletics officials fear that the goal of four-year bans across all sports and countries will be watered down in negotiations leading up to November's World Conference on Doping in Sport in Johannesburg.
