At a glance
- After the official unlapping message and green light, eligible cars lapped by the leader are required to pass the lead-lap cars and the Safety Car.
- Eligibility depends on a defined timing snapshot, not simply who is lapped when the instruction arrives.
- The Safety Car normally returns to the pits at the end of the lap following the unlapping message. The Race Director can keep it out if its presence remains necessary.
- Each driver must first cross the Control Line after the Safety Car enters the Pit Entry Road before making normal racing passes. Specified overtaking exceptions remain applicable.
In this article
F1 Safety Car unlapping requires eligible cars lapped by the leader to pass the lead-lap cars and the Safety Car after the official instruction and green light. The released cars then circulate towards the back of the queue; normal racing has not resumed.
This guide covers the FIA’s 2026 Formula 1 Sporting Regulations, Section B, Issue 09, dated 1 October 2026, specifically the unlapping and associated restart provisions in B5.13.
Who is eligible to pass?
When the Race Director considers it safe, the message “LAPPED CARS MAY NOW OVERTAKE” is sent to competitors and the Safety Car’s green light illuminates. Eligible cars are then required to pass the cars on the lead lap and the Safety Car.
Eligibility under B5.13.4c depends on an earlier timing snapshot. Apply the test separately to each car:
- Identify when it crosses the first safety car line for the second time after deployment.
- Follow that lap to its end, when the car crosses the Control Line.
- Check whether the car was lapped by the leader at that crossing. Only cars meeting that condition qualify for the release.
The first safety car line identifies the relevant lap; the Control Line crossing fixes the eligibility snapshot. A car that only falls a lap down afterwards does not qualify for that release.
If the Race Director considers track conditions unsuitable for overtaking, competitors are sent “OVERTAKING WILL NOT BE PERMITTED”. The decision to authorise unlapping is discretionary; once it is authorised, eligible drivers are required to pass.
How F1 Safety Car unlapping differs from queue sorting
The Safety Car joins the track regardless of the leader’s location. A separate instruction under B5.13.4a addresses cars positioned between it and the leader: the Race Director uses its green light to require those cars to pass.
Those cars continue at reduced speed, without overtaking, until they reach the queue behind the Safety Car. Its green light goes out once they have all passed.
This positional instruction differs from releasing eligible lapped cars. Both procedures use the green light, so drivers must follow the instruction that applies to them.
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What drivers do during unlapping
Lead-lap cars must remain on the racing line while eligible cars pass them and the Safety Car, unless deviating is unavoidable.
After passing, the released cars should continue around the circuit at an appropriate speed, without overtaking, and make every effort to reach the back of the queue. Once all eligible cars have passed the Safety Car, its green light goes out.
For both queue sorting and unlapping, extinguishing the green light ends that passing instruction; the separate overtaking exceptions in B5.13.2c remain applicable.
While released cars circulate to rejoin the queue, the Race Director may, at their sole discretion, close pit exit as the Safety Car and the cars behind it approach and pass the exit.
| Instruction or signal | What it permits or requires | What it does not mean |
|---|---|---|
| Green light for cars between the Safety Car and the leader | Those cars must pass the Safety Car and continue at reduced speed to the queue | Every lapped car has been released |
| Unlapping message and green light | Eligible lapped cars must pass the lead-lap cars and Safety Car | Normal racing and overtaking have resumed |
| Safety Car withdrawal message and orange lights out | Drivers prepare for its return to the pits | All drivers may immediately overtake |
These distinctions follow the FIA’s Safety Car ordering and withdrawal provisions. For wider trackside signals, see our F1 flag guide.
When racing can restart
The withdrawal signal does not release the field to overtake. First, the Safety Car must enter the Pit Entry Road to return to the pits. Each driver must then cross the Control Line for the first time after that entry before making normal racing passes. The specified exceptions in B5.13.2c, including authorised unlapping, remain applicable.
After the unlapping message, the Safety Car returns to the pits at the end of the following lap unless the Race Director considers its presence still necessary. It need not wait for every released car to catch the queue: B5.13.5 exempts unlapping from the usual requirement for all remaining cars to queue behind the leader.
When the Race Director decides it is safe to end the Safety Car period, the message “SAFETY CAR IN THIS LAP” and extinguished orange lights signal its withdrawal at the end of that lap. The first car behind the Safety Car may then set the pace and fall back beyond the usual maximum gap to it.
From orange lights out until the Safety Car enters the Pit Entry Road, drivers must avoid erratic acceleration or braking and any other manoeuvre likely to endanger other drivers or impede the restart. During that interval, no part of a car may run alongside any part of the car ahead.
Image credit: Liauzh · Own work · Modifications: Resized by Wikimedia Commons; otherwise unchanged · Image source · CC BY-SA 4.0
