Karting Flags and Track Rules: What You Need to Know Before Going Out
On track nobody talks: they wave flags. Flags are the language race control uses to communicate with drivers, and knowing them is not bureaucracy: it is your safety and that of everyone around you. Ten minutes is enough to learn them once and for all: here they are, together with the track rules nobody writes down but everyone expects you to know.
In short Yellow: danger, slow down and no overtaking. Green: danger over. Blue: someone is about to lap you, let them pass. Red: session stopped, return to the pits at reduced speed. Black: return to parc fermé. Chequered: end of the session.
Why you need to know them BEFORE you go on track
Flags are not just for races: they are waved in free practice and in rental kart sessions too. A driver who cannot read them is a danger to themselves and others. They are reviewed at briefings, but the briefing is not the place to learn them: it is the place to confirm them. Learn the language first, and on track you will just have to obey it instinctively.
The caution flags: yellow and red
YELLOW is a danger signal. One waved flag: there is a hazard at the side of or on part of the track (a stopped kart, a spin, people near the racing line); slow down noticeably, do not overtake and be ready to change direction. Two waved flags: a hazard is fully or partly blocking the track; slow down, do not overtake and be ready to stop as well. The no-overtaking rule applies until the green flag shown after the hazard.
RED: session stopped. Slow down immediately, no overtaking, and return to the pits (or stop where the marshals indicate) at reduced speed. The red flag is not up for discussion and you do not “finish your fast lap”: when it comes out, your session is already over.
The flags that speak to YOU
BLUE: someone faster is coming up to lap you (or, in practice, someone who is much quicker). You do not have to throw yourself onto the grass: keep a predictable line and make it easy for them to pass, without sudden moves. Predictability is the safest courtesy.
BLACK AND WHITE, split diagonally: a warning for unsporting behaviour, such as over-aggressive driving or avoidable contact. It is the yellow card: the next one is worse. BLACK: you must return to parc fermé on the next lap. It is decided by the stewards and means disqualification from the race or practice. BLACK WITH AN ORANGE DISC: YOUR kart has a visible mechanical problem (something leaking, hanging off or broken): return to the pits immediately.
Track status flags
GREEN: track clear, danger over, back to pushing. CHEQUERED: end of the session: lift off, complete the lap at reduced speed and return to the pits. The desperate sprint after the chequered flag is the classic beginner's mistake: the stopwatch is already off, the risk is not.
The unwritten rules (that everyone expects you to know)
You enter and leave the track ONLY in the designated areas, accelerating or slowing down off the racing line. A kart has no mirrors: before changing line in slow sections, a glance behind saves the day. If you stop on track: move the kart off the racing line if possible, stay beside it on the barrier side and follow the marshals' instructions, and NEVER, for any reason, cross the track on foot. Last one: when you are about to return to the pits and slow down, always raise your hand to signal it. The pit lane is always driven at walking pace.
Frequently asked questions
What should I do with the yellow flag?
Slow down, be ready to change line and do not overtake until you have passed the hazard. One waved flag: hazard at the side of or on part of the track. Two waved flags: track obstructed, be ready to stop as well.
What does the blue flag mean in practice sessions?
That someone much faster is coming: keep a predictable line and make it easy for them to pass, without sudden moves. Predictability first.
And the black flag with an orange disc?
Race control can see a mechanical problem on your kart: come straight back to the pits and have it checked.
Can I finish my fast lap after the red flag?
No: with the red flag the session is stopped. Slow down immediately, no overtaking, and return at reduced speed following the marshals' instructions.
If my kart stops on track, what should I do?
If possible move it off the racing line, take shelter on the barrier side and follow the marshals. Never cross the track on foot.
Conclusion
Flags are ten minutes of study worth years of safe track time. Learn them now, and when they are waved you will respond instinctively, which is the only right way. And if you want to learn the track with someone beside you who has lived these rules for thirty years, Arrive & Drive is the right way to do it: message us on WhatsApp for information and availability.
Find out more: Karting licence: how to start racing with ACI Sport →
References: ACI Sport 2026 Karting Sector Regulations (flag signals). Outside Italy, check the regulations of your national federation.
Questions about this topic?
Message us on WhatsApp: we answer personally, with the experience of people who live at the track. And if you want to drive a real racing kart, with Arrive & Drive you get into one of ours, ready on track. The right spare part? You will find it in the shop.
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Read also: Karting licence: how to start racing with ACI Sport → · Arrive & Drive: try a racing kart without buying one → · Karting classes explained: from Mini to KZ →
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Author: Sergio, TKS RaceLab | Published: 28 July 2026 | Updated: 8 October 2026
TKS RaceLab is the Italian online store dedicated to karting: spare parts, accessories and everything you need to get on track. With Arrive & Drive you arrive at South Garda Karting (Lonato), Franciacorta, Cremona or Ala and find your kart ready to go. No hassle, just driving.
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