Mozda je uvedeno 2014, ali nisam nasao u pravilniku da se spominju ti brojevi. Pravilnici su razbacani na sve strane, ali uspeo sam da nadjem:
Appendix H 2.5.5.1. b)
b) Yellow flag
- Double waved: Reduce your speed significantly, do not overtake, and be prepared to change direction or stop. There is a hazard wholly or partly blocking the track and/or marshals working on or beside the track. During free practice and qualifying, it must be evident that a driver has not attempted to set a meaningful lap time; this means the driver should abandon the lap (this does not mean he has to pit as the track could well be clear the following lap).