Whilst driving your kart at speeds of up to 100mph it’s difficult to communicate with official’s trackside.                                                                                                                                                           Just imagine driving past a marshal post at 50mph with your crash helmet on and an engine less than 60cm from your ear revving at say - 14000 rpm.                                                                                 It’s also most likely that you’re not alone and have several other competitors within close proximity.                                                                                                                                                                It would be extremely difficult  to hear a marshal shout at the top of their voice any information warning you of hazards or command for attention and potentially most dangerous.                           It’s for this reason we quite simply communicate by means of flags. Flag marshals are appointed to display flag signals to competitors.                                                                                                       Penalties can be applied to any driver not complying with flag signals, so its in your own interest and safety you should familiarize yourself with them.  

  National Flag. 

The national flag should only be used as a staring signal if the lights fail.

For a rolling start karts start at the moment the flag is raised.

For a standing start they start at the moment the flag is dropped.

  Red / Green Lights.

Red and green lights are mandatory for the starting signal.