The investigation results may be divided into four categories:
- A preliminary bulletin
- A bulletin
- A preliminary report
- A report
Report standards in a limited version (Aviation - confer ICAO annex 13 / Railway - confer ERA) form the basis for the preparation of bulletins and preliminary reports.
Report standards in a full version (Aviation - confer ICAO annex 13 / Railway - confer ERA) form the basis for the preparation of reports.