What must I report after an incident, and what happens to debris?

Under GCR 170, road observers and flag marshals must report any incident or accident in their section to the Clerk of the Course by the fastest means available as soon as it happens. Every incident reported this way must be followed by a written report to the Clerk of the Course.

Under GCR 171, no marshal may remove any vehicle part from a circuit. All parts left behind after an incident must be taken to Race Control, where the competitor can collect them.

If a stranded vehicle cannot be fully moved behind the barriers but it is reasonably safe to race on, the event's Supplementary Regulations may allow the yellow flags to be replaced by a Hazard Board, which lets competitors race on at their own risk in that sector (Appendix H).