Article B3.5.3

Parc Fermé Permitted Work

Sporting Regulations

Article B3.5.3

FIA Source

Parc Fermé Permitted Work

Chapter: ARTICLE B3: PROCEDURES DURING A COMPETITION

In Simple Terms

Once a car enters parc fermé (the sealed technical area after qualifying or the race), teams can only perform specific maintenance work that's listed in the official rulebook. Any other modifications are forbidden unless the car is properly covered and sealed according to the regulations.

  • Only work explicitly permitted in Appendix B2 is allowed in parc fermé
  • Teams cannot modify or work on cars beyond the approved list
  • Cars can be covered and sealed to allow additional work under specific conditions
  • Parc fermé restrictions prevent teams from gaining unfair competitive advantages between sessions
Official FIA Text

When deemed in parc fermé, only work listed in Appendix B2 may be carried out on Cars, unless covered and sealed per Articles B3.4.2 or B3.4.3.

parc fermépermitted workappendix b2technical regulationscar modifications
2026 Season Regulations