The new year rings in new changes for athletes found guilty of doping.
For first offenders, the World Anti-Doping agency has doubled automatic bans from two years to four, with athletes banned for life if they test positive again.
Kenya has sufferred in recent months after a number of runners tested positive - including champion Rita Jeptoo.
Al Jazeera's Haru Mutasa reports from Iten.
Source: Al Jazeera