Contract of Carriage
Pre-Carriage: the transportation segment from the seller's location to the point where the cargo would leave from the seller's side. Example, to arrange for pre-carriage, you would contract with an inland carrier to make delivery to a port or airport.
Main-Carriage: the transportation segment from the seller's side to the buyer's side. Example, to arrange for main-carriage, you would contract for ocean or air carriage.
On-Carriage: the transportation segment from the point of arrival (on the buyer's side), to the designated ultimate receiver. Example, to arrange for on-carriage, you would contract with an inland carrier to make delivery from the port/airport of arrival to the ultimate receiver.