The World Council of the International Automobile Federation announced Wednesday that Pirelli has been chosen as Formula 1's sole tire supplier for three years. Pirelli replaces Bridgestone beginning with the 2011 season, after Bridgestone announced last November that it would leave Formula 1 when its contract expired at the end of the 2010 season.

The announcement came Wednesday at a meeting of the World Motor Sport Council in Geneva at which several other important decisions were made.

Bridgestone announced last year that it would leave F1 at the end of 2010, throwing open the prestigious position. Pirelli has been the favorite for some time but the decision needed to be ratified by the WMSC. Fellow former F1 supplier Michelin had been Pirelli's closest rival for the deal, with Cooper Avon having been the other main contender.

The most important of the new rules will allow a new movable rear wing controlled by the driver to be used next year in order to help drivers pass other cars during the race.

Also the FIA has banned the creation of any other driver-controlled movable bodywork with the exception of the parts necessary for the driver adjustable bodywork.

Another rule says that should remove the slowest cars from the race: "any driver whose best qualifying lap exceeds 107% of the fastest Q1 qualifying time will not be allowed to take part in the race."

Pirelli will be paid one million euros per team per season in exchange for identical attention and service and a range of just three compounds: soft, medium and hard.