n) In exceptional circumstances the race may be started behind the safety car. In this case, at any time before the one minute signal its revolving yellow lights will be turned on. This is the signal to the drivers that the race will be started behind the safety car. When the green lights are illuminated the safety car will leave the grid with all cars following in grid order no more than 5 car lengths apart. There will be no formation lap and race will start when the leading car crosses the line for the first time.

Overtaking, during the first lap only, is permitted if a car is delayed when leaving its grid position and cars behind cannot avoid passing it without unduly delaying the remainder of the field. In this case, drivers may only overtake to re-establish the original starting order.

Any driver who is delayed leaving the grid may not overtake another moving car if he was stationary after the remainder of the cars had crossed the Line, and must form up at the back of the line of cars behind the safety car. If more than one driver is affected, they must form up at the back of the field in the order they left the grid.

A time penalty will be imposed on any driver who, in the opinion of the Stewards, unnecessarily overtook another car during the first lap.

STOPPING A RACE

155) Should it become necessary to stop the race because the circuit is blocked by an accident or because weather or other conditions make it dangerous to continue, the clerk of the course shall order a red flag and the abort lights to be shown at the Line. Simultaneously, red flags will be shown at all marshal posts.
- When the signal is given to stop all cars shall immediately reduce speed in the knowledge that :
- the race classification will be that at the end of the penultimate lap before the lap in which the signal to stop the race was given,
- race and service vehicles may be on the track,
- the circuit may be totally blocked because of an accident,
- weather conditions may have made the circuit undriveable at racing speed,
- the pit lane will be open.

156) The procedure to be followed varies according to the number of laps completed by the race leader before the signal to stop the race was given :

Case A. Less than two full laps. If the race can be restarted, Article 157 will apply.