Article B6.3.5
Intermediate and wet-weather tyre use in free practice
Sporting Regulations
Article B6.3.5
Intermediate and wet-weather tyre use in free practice
Chapter: B6
In Simple Terms
During practice sessions, drivers can only switch to intermediate or wet tyres once the Race Director officially declares the track is wet. Once that declaration is made, teams are free to use any tyre type (intermediate, wet, or dry) for the rest of the session.
- Intermediate and wet tyres are restricted until the Race Director declares the track wet
- The Race Director has sole authority to make the wet track declaration
- Once declared wet, all three tyre compounds (dry, intermediate, wet) become available
- This rule applies only to free practice sessions, not qualifying or races
Official FIA Text
During any free practice session intermediate and wet-weather tyres may only be used after the track has been declared wet by the Race Director, following which intermediate, wet or dry-weather tyres may be used for the remainder of the session.
free practiceintermediate tyreswet weather tyrestrack conditionrace director
2026 Season Regulations