For two weeks in ever summer break in the Formula 1 season, the FIA enforces a mandatory shutdown period

McLaren’s base in Woking, Surrey, will be a lot quieter than usual over the summer shutdown

We’re a week into the summer break in the Formula 1 season, but drivers and team staff are only now just beginning to get a break. That is because the sport’s mandatory ‘shutdown’ period only actually began on Monday, August 11.

The sporting regulations make it clear that, for “a period of 14 consecutive calendar days”, F1 teams are extremely limited in terms of what they are allowed to do. Put simply, the FIA mandates that no Formula 1-related activities are allowed to be carried out during that shutdown period – but what does that actually mean?

It is important to be specific with things like this in a sport in which marginal performance gains can make a massive difference. And especially in a season such as this one where margins are so tight, with just one or two tenths of a second often the difference between a strong qualifying and a disastrous Q1 exit.

Unsurprisingly, anything to do with car performance is off-limits. So wind tunnels are offline, as are simulators, while you won’t find any engineers tinkering with designs at any factories. It is all forbidden, to the extent that even emails, meetings and calls about any performance-related subjects are not allowed and, if caught breaking those rules, heavy penalties can be applied.

But that is not to say that absolutely everything within a team’s operations has to stop during shutdown. Staff who do not directly contribute to performance, such as those who work in marketing and legal departments, are allowed to continue to work.

Site maintenance is also allowed, meaning factories will not close fully. Teams usually take the opportunity to carry out deep cleaning of their facilities, as well as servicing of essential systems such as lighting, heating, air conditioning and also of the expensive and elaborate machines used in the design and manufacturing process.

Why does F1 have a summer shutdown?

There are human and financial reasons behind the mandated period of no performance-related work. To deal with the money aspect first of all, it helps teams to better manage their expenditure in the modern era of the sport in which there is a budget cap which limits how much cash teams can throw at their cars.

But the most important reason is staff wellbeing, at a time when 24 Grands Prix and six Sprint races are held per year, across five continents. A breather is vital amid that very intense schedule and it gives those who are otherwise working flat out and travelling all over the globe a chance to clock off and get reacquainted with their families and friends.

When will the 2025 F1 summer shutdown end?

The second portion of the season kicks off with the Dutch Grand Prix on the last weekend of August. Given everything will need to be transported to Zandvoort, including personnel, early that week, it would be impossible for a shutdown to still be ongoing any later than Sunday, August 24.

That is the 14th consecutive day after Monday, August 11, when shutdown began, and so serves as the final day of the period as per the sporting regulations. From there, it will be a flat-out sprint to the end of the season with 10 race weekends still to come in a period of just 15 weeks.

Is there another shutdown period?

Yes. There is a second mandatory shutdown period each year, which comes into force after the end of the season. Following the Abu Dhabi Grand Prix on December 7, there will be a couple of weeks for teams to debrief, take part in the post-season test and continue to work on their 2026 cars.

But for nine consecutive days, starting on December 24, performance-related activities are again prohibited. That ensures staff get the chance to spend some time off again with their families, when many will be celebrating the festive period and cheering in the New Year.