During kart races, different flags are used to indicate the situation on the track: Blue flag, you are being overtaken by a faster driver and must allow passage at the next safe place. Yellow flag (flashing lights): Kart stationary on the circuit, slowing down at that location is necessary and overtaking is FORBIDDEN. Red flag: immediately stop at that spot. Black Flag: Ignoring flags, deliberately colliding with or hindering other drivers. Finally, the black and white checkered flag: end of the session, all karts slowly enter the pits.