The Formula One Teams' Association has said the FIA's decision to impose a new points structure for this season is illegal.
F1's governing body the FIA announced on Tuesday that the world championship would be won by the driver who scored the most wins in 2009, as opposed to the traditional system of awarding the title to the driver that scored the most points.
Now FOTA has issued a statement saying that it believes the FIA is not allowed to have made the change without the unanimous support of the teams.
"Following the decision of the World Motorsport Council of the 17 March 2009 to change the way the drivers' championship is awarded, the teams gathered and unanimously agreed to question the validity of this decision," said the statement.
"The amendment to the sporting regulations proposed by the World Motorsport Council was not performed in accordance with the procedure provided for by Appendix 5 of the Sporting Regulations and, as per the provisions of the article 199 of the FIA International Sporting Code, it is too late for FIA to impose a change for the 2009 season that has not obtained the unanimous agreement of all the competitors properly entered into the 2009 Formula 1 Championship."