The FIA has confirmed that rules that will be in place for next week's 'Young Driver Test' at Silverstone.

With the test having been opened up to more experienced drivers to allow teams to work with Pirelli on tyre testing, suggestions had been made that the test could be expanded to four days to allow teams to still run their planned Young Driver programmes.

The governing body has now confirmed however that the team will run, as originally planned, over three days from 17-19 July.

The tyres that will be available to teams will be a combination of the 2012 construction alongside the 2013 compounds and more experienced drivers will only be able to work through programmes focused on the tyres.

FIA observers will be present to ensure that the regulations are adhered to.

"The announcement follows a meeting of F1's Sporting Committee on Wednesday, July 3 at the N?rburgring, prior the German Grand Prix," a missive from the FIA read. "The conditions set out are in accordance with Article 22.4(h)(i) of the F1 Sporting Regulations, as recently amended by the World Motor Sport Council, and are as follows:

"The Young Driver Training Test will remain a three-day test, from July 17-19.

"Only the 2012 construction will be used for the test but with the hard, medium and soft 2013 compounds.

"The test will now allow teams to field drivers who have competed in more than two F1 World Championship events provided that the purpose of them doing this is to test tyres for Pirelli.

"In order to meet this requirement, all teams shall ensure that any changes made to a car at these times are exclusively related to the tyre tests set out in the run plan provided by Pirelli.

"An FIA observer will be appointed to ensure the regulations are being followed."