GlossaryEN1 min readUpdated: Jun 25, 2026

Inter-Vessel Cargo Transfer

Inter-vessel cargo transfer moves freight directly from one ship to another – at sea or in port – without landing the cargo ashore at any stage.

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Last updated: 25 June 2026Published: 19 June 2025

Source: https://en.wikipedia.org/wiki/Ship-to-ship_transfer

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Logistics Concept

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Definition & Explanation

Inter-vessel cargo transfer moves freight directly from one ship to another – at sea or in port – without landing the cargo ashore at any stage. Shipping lines use the operation to avoid costly port calls, optimize routing, or recover schedule when a vessel runs behind. The procedure requires specialized equipment such as floating cranes, tugs, and barges, along with close coordination between both vessel masters under international maritime protocols. Tanker-to-tanker and hazardous cargo operations attract additional regulatory requirements and environmental controls to manage spill risk. Unlike a standard transhipment through a terminal, no shore-side handling is involved: the transfer happens entirely ship-to-ship, typically at anchor or within a designated lightering zone.

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Inter-Vessel Cargo Transfer

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Related Terms

Offshore Cargo Transfer Operations

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