Wet-weather tyre usage compulsory

In Simple Terms

When a race starts behind the safety car or restarts under the safety car, all drivers must use wet-weather tyres until the safety car returns to the pit lane and turns off its orange lights. If a driver ignores this rule, they'll receive a Stop-and-Go Penalty.

• Wet-weather tyres are mandatory during safety car formation laps and restarts
• The requirement lasts until the safety car extinguishes its orange lights and enters the pit lane
• Non-compliance results in a Stop-and-Go Penalty
• This rule applies to both initial starts and race restarts behind the safety car