Validation by a customs officer during the customs inspection carried out in the train before leaving the EU territory.
Be careful, this customs control is not systematic, and customs officers are sometimes dressed in civilian clothes.
By car, truck, bus
Validation by a customs officer at the last EU exit point.
Leaving from a French port -> equipped with PABLO self-service kiosks:
Port of Calais ferry terminal (5 kiosks; Tourisme export)
Dunkerque ferry terminal (4 kiosks; port Ouest; Plage gare maritime)
Ouistreham ferry terminal (2 kiosks; site entry -> lane for light vehicles VL – véhicules légers LV)
Port of Cherbourg ferry terminal (1 kiosk; terminal for pedestrians; also site entry -> lane for light vehicles VL – véhicules légers LV)
Honfleur ferry terminal (1 kiosk; Zone unique)
Dieppe ferry terminal (1 kiosk; terminal for pedestrians)
Le Havre ferry terminal (3 kiosks; zone for pedestrians)
Leaving from other ports (Sète, Algésiras…) -> validation by a customs officer at the last port before leaving the EU.
See also question: