The FIA has formally banned the changing of driver helmet liveries during the season.
The ban, which was first revealed last month, has now been included in the updated 2015 Formula 1 Sporting Regulations.
“In order for drivers to be easily distinguished from one another whilst they are on the track, the crash helmet of each driver must be presented in substantially the same livery at every Event during a Championship season,” the updated Article 21.1 reads.
The rule change means that special one-off designs, which have become popular in recent years, will now be banned.
The updated Sporting Regulations do not clarify what, if any punishment, drivers will face if they opt to ignore the rule change.
Sebastian Vettel, who has raced with over 90 different crash helmet designs during his time in Formula 1, said last week that he would challenge the rule, should any fine go to charity.
The FIA has also clarified confusion around the driver number system, following uncertainty over what would happen to a set number should a driver retire, or drop out of F1
“A driver’s career in Formula 1 will be deemed to have ended if he does not participate in an Event for two entire consecutive Championship seasons,” reads the updated Article 21.2.
This article first appeared on Richland F1 – Image courtesy of Red Bull Content Pool