Tire use and allocation
40 dry-weather tires per driver are allowed
The number of dry-weather tires available to each driver during the Event will remain the same at forty, twenty front and twenty rear.
Each driver will be allocated three sets of dry-weather tires for use on Friday, these may not be used at any other time during the Event. No tires from the remaining seven sets may be used on Friday.
The choice of dry-weather tire for qualifying and race must be made by 09.00 on Saturday (either specification of tire may be used for the free practice sessions on Saturday). However, if both Friday sessions are declared wet this choice may be postponed until 13.00 on Saturday.
The number of wet-weather tires available to each driver during the Event will remain the same at twenty-eight, fourteen front and fourteen rear.
Extreme weather tires will continue to be permitted but, as now, may only be used when authorized.
Parc fermé procedures
To remain the same as in 2003 but the practice of fuel circulation for the purposes of cooling will now be prohibited.
Number of drivers per car
Each team will now be allowed to use four drivers during each season, not including any third driver running in the Friday sessions.
Pit lane speed limit
The speed limit for qualifying and race will be raised to 100km/h. In accordance with Article 100 (of the draft 2004 Sporting Regulations) the Permanent Bureau may be asked to consider a lower limit at tracks which have a particularly narrow pit lane.