As an alternative to the full-course yellow and safety car periods used during other FIA-backed races, the 24H Series uses a series of purple lights and flags to declare a "Code 60" period. Under "Code 60," overtaking is not allowed and all drivers must slow their cars down to a maximum of 60 km/h (37 mph).

The race resumes immediately when green flags are waved and green lights are flashing at each marshal post. Yellow flags are still used to indicate local cautions.