The FIA has tonight confirmed that neither US F1 or Stefan GP will be on the grid this season, while revealing that details of a selection process for 2011 will be announced shortly.
The official statement reads as follows:
The USF1 Team have indicated that they will not be in a position to participate in the 2010 FIA Formula One World Championship. Having considered the various options, the FIA confirms that it is not possible for a replacement team to be entered for the Championship at this late stage.
In the coming days the FIA will announce details of a new selection process to identify candidates to fill any vacancies existing at the start of the 2011 season.