Race winner Lewis Hamilton has kept his Italian Grand Prix victory after his Mercedes team was cleared of breaching the technical regulations.
Hamilton took a dominant victory at Monza - his seventh of the season - after beating Ferrari driver Sebastian Vettel by 25 seconds.
His win, however, was placed in doubt when the FIA announced one of his tyres was 0.3 PSI below the limit set by the minimum tyre pressure regulations.
After meeting with Pirelli and Mercedes representatives after the race, the FIA stewards decided Mercedes had not done anything wrong.
"Stewards determine that the pressures were at the minimum start pressure recommended by Pirelli when they were fitted to the car," said the stewards.
"Tyre warming blankets had been disconnected from their power source as is normal procedures and the tyres were significantly below the maximum permitted tyre blanket temperature at the time of the FIA measurement on the grid and significantly different temperatures from other cars measured on the grid.
"The stewards decide to take no further action.
"Neverthess the stewards recommend the tyre manufacturer and the FIA hold further meetings to provide clear guidance to the teams on measurements."