There had been considerable doubt about whether the US race would even take place, since the FIA did not grant the Watkins Glen Grand Prix Corporation final approval for the event until August 28.
Houbo considerables dúbidas sobre se a carreira dos EE.UU. levaríase a cabo, xa que a FIA non lle concedeu ao Gran Premio de Watkins Glen Corporación a aprobación final para a carreira ata o 28 de agosto.