Pirelli and FIA to define tyre restrictions

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Pirelli and the FIA will use the practice sessions for the Singapore Grand Prix to define "a clearer procedure" relating to tyre restrictions.

Mercedes was under investigation following the Italian Grand Prix after it was found to have tyre pressures which were below the Pirelli specification on the grid. However, the team escaped punishment as it says its pressures were legal when the pressures are usually checked by Pirelli.

Part of the decision not to punish Mercedes saw the FIA admit it would need to clarify the procedure for measuring tyre parameters, and Pirelli motorsport boss Paul Hembery says this will now take place in Singapore.

"During [practice], we will also be defining, together with the FIA, a clearer procedure enabling the teams to more easily follow the rules regarding tyre usage," Hembery said. "This is important to avoid any misunderstandings, by giving the teams more precise indications to comply with, thus avoiding what happened to Mercedes in Monza”.

Pirelli has nominated the soft and supersoft tyre compounds for the Singapore Grand Prix, the same combination which has been used in Monaco, Canada and Austria so far this season.

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