What is parc fermé in F1?
From the moment the car goes out to qualify, teams can hardly touch it. What parc fermé is, why it exists and what can be changed.
Summary
- Parc fermé limits what teams can change on the car between qualifying and the race.
- It starts when the car first goes out on track in qualifying.
- It aims to make sure the car that qualifies is the one that races, and to avoid special cars for a single lap.
Step by step
When it starts
According to the FIA, a car enters parc fermé when it first leaves the pit lane in qualifying. Those that never go out are considered in parc fermé at the end of Q1.
What it is for
So that the car that qualifies is the one that races: no tailor-made car for the qualifying lap and a different one for the race. It also contains costs.
What you can do
Routine work: bleeding the brakes, changing discs, small wing adjustments, refuelling and changing tyres. The FIA can grant special permissions if the weather requires it.
What you cannot do
Major changes, such as replacing the engine or the style of the rear wing. Whoever makes them must start from the pit lane.
The weather exception
If the weather changes between qualifying and the race (for example, a dry qualifying and a wet race), set-up changes are allowed.
Where to see it on Formuradar
Did you get it?
Glossary
- Parc fermé
- A regime in which, from the moment the car goes out to qualify, teams can only make minimal, supervised changes. It aims to make sure the car that qualifies is the one that races.
- Starting grid
- The race starting order, which comes from qualifying: the fastest starts first.
- Pit lane
- The pit road, parallel to the start/finish straight, with a speed limit. "Pit-lane time" is what a car spends from entering to leaving.
Sources
- A car enters parc fermé when it first leaves the pit lane in qualifying; those that do not go out are considered in parc fermé at the end of Q1 (article 40 of the sporting regulations). FIA Insights · Parc life: how the FIA's parc fermé regulations make sure the car that qualifies is the one that races
- The aim is a level playing field and cost control: teams must not build bespoke cars to qualify. Planet F1 · Explained: what is parc fermé and how does the FIA enforce it?
- Routine tasks are allowed (bleeding brakes, changing discs, small wing adjustments, refuelling and changing tyres); important changes force a pit-lane start. Some of these sources date from 2016-2018: for the current detail, check the FIA sporting regulations. Planet F1 · Explained: what is parc fermé and how does the FIA enforce it?
Sources checked on 18 October 2026. Valid for: sporting regulations (check the current detail with the FIA). The explanations are popular-level: for the exact rules, check the FIA sporting regulations.
Keep learning
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