1 | Chequered Flag – Signals the end of the race and is shown first to the winner, and then to every car to cross the line behind them.
2 | Red Flag – The race has been stopped, usually because a car is lying in a dangerous position after an accident or because conditions are too poor for racing to be safe.
3 | Yellow Flag – Indicates danger ahead and overtaking is prohibited. A single waved yellow flag means slow down, a double waved yellow warns that the driver must be prepared to stop if necessary.
4 | Blue Flag – Shown to a driver to indicate that a faster car is behind him and trying to overtake. Shown both to lapped cars and those racing. A lapped car must allow the faster car past after seeing a maximum of three blue flags or risk being penalized. A racing car is under no obligation to move over.
5 | Black Flag – Shown with a car number to indicate that the driver must call into the pits immediately, usually because he has broken the rules and will be disqualified.
6 | Red & Yellow Stripped Flag – The track is slippery. This usually warns of oil or water on the track.
7 | Green Flag – A hazard has been cleared up and the cars can proceed at racing speed.
8 | Black Flag with Orange Disc – Shown with a car number to indicate that the car has a mechanical problem and the driver must return to his pit immediately.
9 | Black & White Diagonal Halves – Shown with car number to indicate a warning for unsportsmanlike behavior. A black flag may follow if the driver takes no heed of the warning.
10 | White Flag – Warns of a slow-moving vehicle on the track, such as a tow truck or safety car.