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WCO Data Model Code List | Freight-Academy™

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GlossaryEN1 min readUpdated: Jun 18, 2026

WCO Data Model Code List

A WCO Data Model Code List is a standardized reference directory of unique identifiers published by the World Customs Organization as part of its Data Model for cross-border information exchange.

Quick Answer

A WCO Data Model Code List is a standardized reference directory of unique identifiers published by the World Customs Organization as part of its Data Model for cross-border information exchange.

Each code represents a precisely defined concept—such as country identifiers, dangerous goods classes, or declaration types—and carries the same meaning across all member administrations, regardless…

Customs systems, freight forwarder software, and trade platforms rely on these lists to process messages automatically, eliminating dependence on free-text fields.

Last updated: 18 June 2026Published: 27 January 2026

Source: https://www.wcoomd.org/en/topics/facilitation/instrument-and-tools/tools/data_model.aspx

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Definition & Explanation

A WCO Data Model Code List is a standardized reference directory of unique identifiers published by the World Customs Organization as part of its Data Model for cross-border information exchange. Each code represents a precisely defined concept—such as country identifiers, dangerous goods classes, or declaration types—and carries the same meaning across all member administrations, regardless of language. Customs systems, freight forwarder software, and trade platforms rely on these lists to process messages automatically, eliminating dependence on free-text fields. Unlike purely national code tables, WCO Code Lists ensure interoperability from the exporting customs office all the way to the importing authority.

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Recommended format: Source: Freight Academy – WCO Data Model Code List (https://www.freight-academy.com/en/glossary/wco-data-model-code-list), accessed 2026-09-26
APA style: Freight Academy Editorial Team. (2026). WCO Data Model Code List. Freight Academy. https://www.freight-academy.com/en/glossary/wco-data-model-code-list
BibTeX: @misc{wcodatamodel2026, title = {WCO Data Model Code List}, author = {{Freight Academy Editorial Team}}, year = {2026}, url = {https://www.freight-academy.com/en/glossary/wco-data-model-code-list}, note = {Freight Academy, accessed 2026-09-26} }

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