The International Automobile Federation (FIA) announced on Wednesday that the "107 percent rule" will return in time for the start of the 2011 Formula One season.

"From 2011, any driver whose best qualifying lap exceeds 107 percent of the fastest Q1 qualifying time will not be allowed to take part in the race," the FIA said in a statement issued by their World Motorsport Council.

"Under exceptional circumstances, however, which may include setting a suitable lap time in a free practice session, the stewards may permit the car to start the race.

"Should there be more than one driver accepted in this manner, the grid order will be determined by the stewards."

The 107 percent rule, initially introduced in 1996 but abolished at the end of 2002, seeks to restrict presence on the track to cars quick enough not to disrupt the fastest drivers.

FIA president Jean Todt had expressed his enthusiasm for the rule to be restored.

The FIA also agreed a three year deal with tyre supplier Pirelli.

Among other changes, as from next season, cars will have an adjustable rear wing which may be deployed by a car attempting to overtake the car in front. The driver in front cannot do the same.

The FIA also approved an increase in car weight - opening the door for a return to the Kers car boost system used last year.

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