At each Grand Prix meeting all race drivers may participate in two one and a half-hour practice sessions on Friday (Thursday at Monaco), another one-hour session on Saturday morning and a qualifying session on Saturday afternoon.
In practice, teams are limited to two cars per session. A nominated third driver or either race driver can use these cars in the session. While individual practice sessions are not compulsory, a driver must take part in at least one Saturday session to be eligible for the race.
Saturdays one-hour qualifying session is split into three distinct parts, each with multiple drivers on track simultaneously, and each with the drivers running as many laps as they want:
Q1: All 22 cars may run laps at any time during the first 15 minutes of the hour. At the end of the first 15 minutes, the six slowest cars drop out and fill the final six grid places.
Q2: After a seven-minute break, the times will be reset and the 16 remaining cars then will then run in a second 15-minute session - again they may complete as many laps as they want at any time during that period. At the end of the 15 minutes, the six slowest cars drop out and fill places 11 to 16 on the grid.
Q3: After a further eight-minute break, the times are reset and the final 15-minute session will feature a shootout between the remaining 10 cars to decide pole position and the starting order for the top 10 grid places. Again, these cars may run as many laps as they wish.
In the first two 15-minute sessions, cars may run any fuel load and drivers knocked out after those sessions may refuel ahead of the race. However, the top-ten drivers in the final 15-minute session may only replace the fuel they used during that session before the start of the race.
If a driver is deemed by the stewards to have stopped unnecessarily on the circuit or impeded another driver during any practice session, then they may drop the driver such number of grid positions that they consider appropriate.