Motorcycling's governing body has confirmed the Japanese Grand Prix will go ahead in October despite leading MotoGP riders refusing to go.
The International Motorcycling Federation says that an independent report commissioned to investigate the situation after the Fukushima nuclear disaster in March had cleared the way.
The FIM says the final conclusion is that 'based on the estimate dose it can be said with no doubt that the radiation risk during the race event is negligible.'
The race was originally scheduled for April but was postponed after the Fukushima nuclear plant's cooling systems were crippled by the earthquake and tsunami that led to meltdowns in three reactors.
MotoGP world champion Jorge Lorenzo and Australian championship leader Casey Stoner, who ride for Japanese teams Yamaha and Honda respectively, have both said they will not be going to Motegi for the October the 2nd race.
The preliminary report, released on the FIM website said air and soil in the area of Motegi and the riders' hotel had been tested as well as food and drinks purchased locally.
