ICAO Annex 13

Aircraft Accident and Incident Investigation

The application of this specification with respect to accidents or serious incidents occurring in the territory of a
non-Contracting State, in an area of undetermined sovereignty or on the high seas is addressed in "Accidents or incidents outside the territory of any State", "Investigator-in-charge — Designation", "Investigator-in-charge — Access and control" and "Flight recorders — Accidents and incidents".

Unless otherwise stated, the specifications in this Annex apply to activities following accidents and incidents
wherever they occurred.

In this Annex the specifications concerning the State of the Operator apply only when an aircraft is leased, chartered or interchanged and when that State is not the State of Registry and if it discharges, in respect of this Annex, in part or in whole, the functions and obligations of the State of Registry.