Formula 1 tyre supplier Pirelli has formally confirmed the changes made to regulations regarding the use of compounds in 2016.
Pirelli will bring three compounds from its extended range of five to every Grand Prix in 2015, from which every driver can select at least two compounds to use.
The existing four compounds, Super Soft, Soft, Medium and Hard, will be joined by the Ultra Soft, which was tested in Abu Dhabi earlier this week and will feature purple on its side wall.
Pirelli issued the following statement to confirm changes to the 2016 regulations:
- In consultation with the FIA, Pirelli will decide in advance which three compounds can be used at each race, and communicate this information to the teams.
- The total number of sets that can be used during practice, qualifying and racing remains the same as it is currently: 13.
- Pirelli will nominate two mandatory race sets for each car. Furthermore, one set of the softer compound will have to be kept for use in Q3 only.
- The two mandatory sets chosen by Pirelli can be of two different compounds, from the three that have been nominated for the race weekend. These sets will obviously be identical for each team.
- The remaining 10 sets can be chosen by each team, from the three compounds nominated for the race weekend.
- The teams will make their choices within a deadline set by Pirelli. They will communicate their choices to the FIA, which will in turn tell Pirelli how many tyres to produce. The choices for each car will remain secret until 2 weeks before the race. If a team does not meet the deadline, the choice will be made by the FIA.
- Once the choices for each car have been made, the FIA will continue to assign the tyres randomly via a barcode, as is the case currently.
- The choices made by each team can vary for each of its cars: so each driver within a team can have a different allocation.
- The tyres will be distinguished by different coloured markings on the sidewalls, as is currently the case.