New F1 Tire Regulations
25.1 Supply of tires : a) Any tire company wishing to supply tires to Formula One teams must notify the FIA of its intention to do so no later than 1 January preceding the year during which such tires will be supplied.
Any tire company wishing to cease the supply of tires to Formula One teams must notify the FIA of its intention to do so no later than 1 January of the year preceding that in which such tires were to be supplied.
b) No tire may be used in the Championship unless the company supplying such tire accepts and adheres to the following conditions : – one tire supplier present in the Championship : this company must equip 100% of the entered teams on ordinary commercial terms and make available identical quantities and specifications of tires to all teams during a calendar year ;
– two tire suppliers present : each of them must, if called upon to do so, be prepared to equip up to 60% of the entered teams on ordinary commercial terms ;
– three or more tire suppliers present : each of them must, if called upon to do so, be prepared to equip up to 40% of the entered teams on ordinary commercial terms ;
– each tire supplier must undertake to provide no more than two specifications of dry-weather tire at each Event, each of which must be of one homogenous compound and visibly distinguishable from one another when a car is on the track. Any modification or treatment, other than heating, carried out to a tire or tires will be considered a change of specification ;
– each tire supplier must undertake to provide no more than one specification of wet-weather tire at each Event which must be of one homogenous compound ;
– each tire supplier must undertake to provide no more than one specification of extreme-weather tire at each Event which must be of one homogenous compound ;
– if, in the interests of maintaining current levels of circuit safety, the FIA deems it necessary to reduce tire grip, it shall introduce such rules as the tire suppliers may advise or, in the absence of advice which achieves the FIA's objectives, specify the maximum permissible contact areas for front and rear tires.
25.3 Quantity of tires : During the Event no driver may use more than fourteen sets of dry-weather tires, five sets of wet-weather tires and four sets of extreme-weather tires.
No driver may use more than two sets of each specification of dry-weather tire during P1 and P2.
No driver may use more than one set of wet and one set of extreme-weather tires during P1 and P2.
A set of tires will be deemed to comprise two front and two rear tires all of which must be of the same specification.
25.4 Control of tires : a) The outer sidewall of all tires which are to be used at an Event must be marked with a unique identification.
b) Other than in cases of force majeure (accepted as such by the stewards of the meeting), all tires intended for use at an Event must be presented to the FIA technical delegate for allocation prior to the end of initial scrutineering.
c) At any time during an Event, and at his absolute discretion, the FIA technical delegate may select alternative dry-weather tires to be used by any team or driver from among the relevant stock of tires which such team's designated supplier has present at the Event.
d) A competitor wishing to replace one unused tire by another identical unused one must present both tires to the FIA technical delegate.
e) The use of tires without appropriate identification may result in deletion of the relevant driver’s qualifying time or exclusion from the race.
f) The only permitted type of tire heating devices are blankets which use resistive heating elements.
25.5 Use of tires
a) Each team will be allocated eight sets of dry-weather tires, four of each specification, for use during P1 and P2. These are the only dry-weather tires which may be used during these sessions and must be returned to the tire supplier before the start of P3.
b) Each driver will be allocated ten further sets of dry-weather tires, five of each specification, for use during the remainder of the Event. However, one set of each specification must be returned to the tire supplier before the start of the qualifying practice session and may not be used during the remainder of the Event.
2007 F1 Sporting Regulations 13 of 39 5th March 2007 c) Each team will be allocated two sets of wet and two sets of extreme-weather tires for use during P1 and P2. These are the only wet and extreme-weather tires which may be used during these sessions and, unless they remain unused, must be returned to the tire supplier before the start of P3.
d) Each driver will be allocated four further sets of wet-weather tires and three sets of extreme-weather tires for use during the remainder of the Event. Unused wet or extreme-weather tires which were allocated for use during P1 and P2 may form part of this allocation.
e) Prior to the start of the qualifying practice session wet and extreme-weather tires may only be used after the track has been declared wet by the race director, following which extreme, wet or dry weather tires may be used for the remainder of the session.
f) Unless he has used wet or extreme-weather tires during the race, each driver must use at least one set of each specification of dry-weather tires during the race.