This is a summary of the flags commonly used at Porsche Club events as well as most other events at a motorsports park.
Green Flag
Track is clear.
Session under way.
Standing Yellow Flag
Problem somewhere on the track ahead of you requiring caution.
Check mirrors and slow car down safely; do not slam on brakes.
Also displayed during warm-up laps.
NO PASSING ALLOWED until in sight of the next corner station without a yellow flag and only in an approved passing zone.
Waving Yellow Flag
Problem that may require evasive action in your immediate area.
Check mirrors and slow car down safely; do not slam on brakes.
Be prepared to go off line safely.
NO PASSING ALLOWED until in sight of the next corner station without a yellow flag and only in an approved passing zone.
Yellow Flag with Red Stripes Debris or “Slippery” Flag
Oil, debris, cone, or animals on track creating a potentially hazardous condition.
Check mirrors and slow car down safely; do not slam on brakes.
Be prepared to go off line safely.
If flag is not available, a waving yellow is used.
Blue Flag with Yellow Stripe or Solid Blue “Passing” Flag
Car behind you possibly wanting to pass.
Check mirrors.
Give passing signal in, or if possible, before the next approved passing zone.
Stay on line, lift off throttle, and let car pass.
In some situations a car will not be behind you, but you may be shown this flag to be aware that a car is closing on you and will catch you in a few corners; so, start watching your mirrors more actively.
White Flag
Slow-moving or emergency vehicle in your immediate area (i.e., ahead of you).
Slow car down and proceed with caution.
Passing is allowed but give the vehicle plenty of room.
A waving white flag means the slow-moving vehicle is between you and the next flag station. CAUTION!
Black Flag
A black flag at all flagging stations (full-course black) indicates a problem on the track. Watch your mirrors and slow down safely, pull into the pits, and wait for further instructions.
NO PASSING ALLOWED on full-course black.
When pointed at you, something is wrong with your car or your driving. Proceed into the pits and talk to the steward. If you are not sure if the black flag was pointed at you, come into the pits and find out.
Acknowledge to the flagger that you have seen this flag by giving them a wave. They need to know so they can report to Control.
Black Flag with Orange Circle or “Meatball” Flag
Often used to indicate a possible mechanical problem with your car.
Acknowledge the flag.
Slow down and get off line if you’re leaking oil (oil is very dangerous on the line.)
Pull safely into the pits, and proceed directly to the Black Flag Station.
Red Flag
Indication of a serious problem on the track.
This is always shown at all stations and indicates the session is to be halted without coming into the pits.
Check mirrors, pull off line (but not off the pavement), and come to a controlled, safe stop in view of and, if possible, within earshot of the next corner worker.
Do not stop around the other side of a blind corner! Think!! Imagine that a driver behind you missed seeing this flag and is under power when he/she approaches where you’re stopped.
When you stop you are now under the control of the flagging station in front of you. Follow their instructions. Remain in your car! After a period of time, the black flag will typically be shown indicating that everyone should pull into the pits.
Checkered Flag
End of run session.
Check mirrors, ease off throttle but maintain a reasonable pace, and commence cool-down lap.
ABSOLUTELY NO PASSING AFTER CHECKER!
Originally Written by Bill Hawe. Revised 2025 by Track Committee