Pirelli and McLaren are hoping to rearrange their 2014 Formula 1 tire test for Vallelunga next month, after plans to run at Austin had to be abandoned.
F1's tire supplier is eager to get ahead of its work for next season's rubber, but the idea of running at Circuit of The Americas before the United States Grand Prix did not get the necessary approval from the FIA.
With McLaren eager to help Pirelli in its work, efforts were made to find an alternative venue and Vallelunga is now being lined up for a two-day 1000km tire test on Nov. 11-12.
McLaren sporting director Sam Michael said: "The FIA has not approved it yet, so it is subject to FIA authorization.
"As it is a Pirelli test, Pirelli has to get the authorization and they have to tell all the teams."
Michael added that the team's test drivers will be used, and the 2011 car will be run by staff from McLaren's heritage division.