BMW Sauber and Williams will not be penalised despite discrepancies in their fuel sample temperatures during the Brazilian Grand Prix, the race stewards said.
Fuel samples taken from both cars of both teams during their pitstops in Sunday's race showed temperature degrees outside the permitted variation.
Article 6.5.5 of the Formula One technical regulations states: "No fuel on board the car may be more than ten degrees centigrade below ambient temperature."
FIA technical delegate Jo Bauer said all fuel samples from the four cars showed temperature of 12 to 14 degrees centigrate lower than the ambient temperature at the time.
However, after deliberations at Interlagos, the race stewards decided not to penalise the teams, confirming the race results of the Brazilian Grand Prix as official.
This means Kimi Raikkonen is confirmed as the 2007 world champion.