Autriche
Bundesanstallt für Verkehr (BAV)
Belgique
Service public fédéral Mobilité et Transport
Organisme d’enquêtes pour les accidents et incidents ferroviaires
Bulgarie
Railway Accident Investigation Unit (RAIU)
Danemark
Accident Investigation Board (AIB)
Espagne
Rail Accident Investigation Commission (CIAF)
Estonie
Estonian Safety Investigation Bureau
Hongrie
Transportation Safety Bureau
Irlande
Railway Accident Investigation Unit (RAIU)
Italie
Direzione Generale per le Investigazioni Ferroviarie
Lettonie
Transport Accident and Incident Investigation Bureau (TAIIB)
Lithuanie
Lithuanian National Safety Authority
Luxembourg
Administration des Enquêtes Techniques (AET)
Portugal
Instituto da Mobilidade e dos Transportes Terrestres (IMTT)
Suède
Swedish Accident Investigation Authority