Port of discharge is the named port where goods are to be taken off the vessel: again a field on the transport document rather than a term anyone defines. It is distinct from place of delivery, which under a through or multimodal document may be inland and later. A bill of lading can show a discharge port and a final delivery point hundreds of kilometres apart, with different parties responsible for each leg. Because the sale terms determine where cost and risk change hands while the transport document only records the routing, the two must be read together. Where a credit calls for a particular discharge port, a document naming a different one — even a plausible transhipment — is liable to be refused.
Why this entry carries no source list. This lexicon cites an official primary source wherever one exists and says so plainly where none does. This term is market convention: it was coined by commercial practice, it is used by everyone in the trade, and no body defines it. Pointing at a carrier’s tariff, a bank’s product page or a trade association’s explainer would dress one participant’s usage as a general rule. The practical upshot runs through the paragraph above — where the word carries no fixed meaning, the contract has to supply one.