Track limits will be electronically monitored at Mexico City's Turn 11 this weekend, with the FIA adopting the same detection system that was used earlier this year at Spa's Raidillon corner.
Turn 11 at the Autodromo Hermanos Rodriguez is a fast left hand corner that leads to the track's back straight and precedes a DRS activation point.
Drivers running wide at the exit of Turn 11 to gain a speed advantage will automatically lose their lap time. But exceeding track limits on the exit of the corner on three occasions will result in a driver shown the black and white warning flag (for unsportsmanlike behavior).
FIA race director Michael Masi addressed an official note to drivers reminding them of the rules that shall be in force this weekend.
"A lap time achieved during any practice session or the race by a driver completely crossing the red and white kerb on the exit of Turn 11 with no part of the car remaining in contact with the red and white section of the kerb, will be invalidated by the stewards.
"On the third occasion of a driver completely crossing the red and white kerb on the exit of Turn 11 with no part of the car remaining in contact with the red and white section of the kerb during the race, he will be shown a black and white flag, any further cutting will then be reported to the stewards.
“Each time any car completely crosses the red and white kerb on the exit of Turn 11, teams will be informed via the official messaging system.
"The above requirements will not automatically apply to any driver who is judged to have been forced off the track, each such case will be judged individually."
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