Organisme d'Enquête sur les Accidents et Incidents Ferroviaires

Report types

In accordance with the Law on the Railway Code, every investigation into an accident or incident is subject to a report prepared in a format appropriate to the type and severity of the accident or incident and the importance of the investigation’s results. The investigation reports serve as a reminder as well as an archive, but also allow the lessons learned from accidents and/or incidents to be recognised. Their goal is to encourage the circulation of knowledge acquired in the course of different analyses.

The various report types published by the IU are:


Bulletin of general information


Safety investigation report and summary

The report outlines the elements that have allowed conclusions to be drawn.

The content is determined in appendix 6 of the law on the railway code.

The IU publishes the report in two languages (French and Dutch).

A summary containing the main elements of the investigation, the conclusions and the recommendations is published in 4 languages (English, French, Dutch and German).


Temporary safety investigation report

When we are unable to complete an investigation within 1 year, we publish a temporary safety investigation report.