The FIA has informed all drivers about what they can and cannot do at the Sochi circuit in Russia in the coming days. All this is for the sake of safety and respecting the track limits. If a violation is detected, it will be reported to the stewards and a driver may be punished.
Going wide is not allowed
Turn two leading to turn three is the first significant braking area on the track. There have been several times drivers have gone wide there in the past, cutting off the apex, and that is not allowed. If, for any reason, a driver goes wide on turn two, they must take an alternate route around blocks before they are allowed back on track at turn three.
If a driver goes wide at turn two, the lap time will be invalidated and if there is more than one offence, penalised. This is not the only warning the drivers have been given, they will also be closely monitored for 'unnecessarily slow driving', specifically at turns twelve and thirteen. Here drivers sometimes want to slow down in order to prepare for a fast lap.
The situation will also be presented to the stewards in case of an infringement, as can be seen from a shared overview of rules on Twitter.