Paris, France (My Sportsbook) - The FIA Court of Appeals on Wednesday rejected protests against the diffusers used by three Formula One teams in the Australian and Malaysian Grand Prix after concluding their "double decker" designs comply with current F1 technical regulations.

Prior to the start of the Australian GP, Ferrari, Red Bull and Renault filed an appeal after stewards rejected their protests that the cars from Brawn, Toyota and Williams used an illegal diffuser. BMW Sauber and McLaren later followed suit.

FIA officials heard the appeal Tuesday in Paris.

According to a statement from the FIA, "Based on arguments heard and evidence before it, the court has concluded that the stewards were correct to find that the cars in question comply with the applicable regulations."

Diffusers are devices that help accelerate the air flow beneath the car and therefore improve its downforce.

Jenson Button from Brawn has been dominant so far with victories in the first two races. Button has accumulated 15 points rather than 20, since the Malaysian GP was cut short less than 75 percent of its scheduled distance and half points were awarded. He is five points ahead of second-place and teammate Rubens Barrichello.

Both drivers were uncertain of their futures in F1 before team principal Ross Brawn acquired the former Honda team earlier this year. The two drove for Honda in 2008, but in December the Japanese auto manufacturer pulled out of the sport and sold its team due to the world-wide economic slowdown.

"We are pleased with the decision reached by the International Court of Appeal today," Brawn said. "We respect the right of our competitors to query any design or concept used on our cars through the channels available to them."

Brawn leads the F1 Constructors' standings with 25 points compared to second- place Toyota with 16.5 points heading into this weekend's Chinese Grand Prix in Shanghai.

"The FIA Technical Department, the stewards at the Australian and Malaysian Grand Prix and now five judges at the International Court of Appeal have confirmed our belief that our cars have always strictly complied with the 2009 technical regulations," Brawn added.

The verdict gives Button and Brawn a big boost in their quest for the title, while teams such as McLaren and Ferrari have a lot of catching up to do.

"Unfortunately this decision forces us to intervene on fundamental areas of the car's design in order to be able to compete on an equal footing with some of the teams from a point of view of the technical regulations," Ferrari team principal Stefano Domenicali said in a statement. "And that will take time and money."

The Court's findings come as another blow to Ferrari, who have had a disappointing start to their 2009 season, with neither Felipe Massa nor Kimi Raikkonen scoring a point in the first two races.