The FIA has announced that it is to change the regulations covering this month's F1 Young Driver Test at Silverstone to allow teams to run their race drivers in an attempt to help resolve the current Pirelli tyre problems.

Following chaotic scenes in the British Grand Prix - where four drivers suffered left-rear blowouts - the governing body has revealed that it is seeking approval from the World Motor Sport Council to make revisions to the Sporting Regulations, which currently state that race drivers are unable to test in-season.

While race drivers will be permitted to drive, they will only be allowed to work on tyre development and will not be permitted to work on improvements to the car.

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The FIA has also revealed that the test could be extended from three days to four to ensure that teams are still able to run through their Young Driver programme, while the governing body is also seeking to change the Technical Regulations to allow for changes to be made to tyre specifications during the season without the unanimous agreement of competing teams.

"Our priority is to ensure safety for all in Formula One and we believe the incidents at Silverstone represent a genuine safety concern for the drivers," FIA President Jean Todt said. "We have thus taken the decision to alter the Young Driver Test to allow teams to use drivers they deem fit to carry out tyre development work in a bid to solve the problems we saw at the British Grand Prix.

"I believe it is fitting to carry out this work at the circuit upon which the issues were manifested."

Despite the changes being made to the test, Mercedes has agreed not to take part in the session having previously been banned from the Young Driver Test by the International Tribunal for running its 2013-spec car in a test with Pirelli in Barcelona earlier in the year.

The FIA has asked Pirelli for assurances that there will be no repeat of the problems when teams heads to Germany this weekend for the next round of the campaign.