Name Harmonized Commodity Description and Coding System (HS, Harmonized System)
Reference What is the Harmonized System (HS)? by World Customs Organization (WCO).

Need to Act?

  • Used by more than 200 countries: list maintained by WCO.
  • The set of codes may not be covering all products with economic significance, for instance forest products.


Important for international trade and as a source of income for many countries.

For its use in the determination of customs and excise duties, see the Singapore Trade Classification, Customs & Excise Duties 2012.


See Position of Contracting Parties to the HS and non-Contracting Party Administrations (Situation as of October 2016).

See also


  • More countries should adobt the Harmonized System.
  • The system should be regularly checked for sufficient coverage (see also Classification in the Interaction Dictionary).

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