The FIA has relaxed Portimao's track limit rules after 125 violations and lap time deletions were triggered during Friday's opening day of running.
The governing body had implemented strict rules involving the Algarve track's Turn 1 and Turn 4, where drivers were sanctioned for putting all four wheels beyond the white line at the edge of the track.
However, the abundance of violations recorded in free practice, caused in part by Portimao's slippery track surface, and discussions held during Friday's drivers' briefing, have led FIA race director Michael Masi to publish on Saturday morning a revised event note.
The changes will allow drivers to run beyond the white line at Turns 1 and 4, with lap times remaining valid if a car remains in contact with the red and white kerb beyond the line.
"A lap time achieved during any practice session or the race by leaving the track and cutting behind the red and white kerb on the exit of turn one [or turn four] will result in that lap time being invalidated by the stewards," read Masi's revised note.
Regarding Turn 15, the event also stated that : "A driver will be judged to have left the track if no part of the car remains in contact with the track."
Gallery: The beautiful wives and girlfriends of F1 drivers
Keep up to date with all the F1 news via Facebook and Twitter
The Spanish Grand Prix’s future home is still surrounded by construction barriers, deadlines and heavy…
Helmut Marko has revealed that Max Verstappen’s in-season promotion from Toro Rosso to Red Bull…
On this day in 1999 in Monaco, a dominant Michael Schumacher secured his 35th career…
Sometimes at the Indianapolis Motor Speedway, speed doesn’t build gradually – it arrives like it…
Nearly two decades after its last high-speed venture in Formula 1, American computing giant Intel…
Max Verstappen’s Nürburgring 24 Hours debut is already delivering the kind of storyline only he…