Following a unanimous request from the teams and further to a fax vote of the remaining Formula One Commission members, together with a fax vote of the World Motor Sport Council, the requirement under Article 58b of the 2005 Formula One Sporting Regulations that the third (Friday) driver should not have competed in more than six World Championship Events during the previous two World Championships has been deleted.

As a result, any driver with a Formula One Super Licence may now run as a third driver on Friday. As a result of this decision, Christian Klien, who competed in the first three Grands Prix of this season, will now be able to undertake third driver duties on Fridays, beginning with the San Marino GP, when Tonio Liuzzi makes his race debut for Red Bull Racing, along side David Coulthard.

Christian Horner"I am delighted that all of the teams supported our request to the FIA in order to change the regulations regarding the third driver. It would have been hugely frustrating for Christian to be unable to drive a third car in Imola due to the fact that, at 22 years of age, he has driven more then 6 Grands Prix."

Christian Klien"Great News! Of course, as a race driver it is difficult to sit on the sideline while your team-mates are driving, so it is very good that I can continue to drive and also help the team at the races."