Harmonized System (HS)
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The Harmonized Commodity Description and Coding System generally referred to as "Harmonized System" or simply "HS" is a multipurpose international product nomenclature developed by the World Customs Organization (WCO).
It is set out in the Annex to the International Convention on the Harmonized Commodity Description and Coding System. Definition of the HS provided in the Convention: the HS means the Nomenclature comprising the headings and subheadings and their related numerical codes, the Section, Chapter and Subheading Notes and the General Rules for the interpretation of the Harmonized System, set out in the Annex to this Convention.
The HS comprises about 5,000 commodity groups; each identified by a six-digit code, arranged in a legal and logical structure and is supported by well-defined rules to achieve uniform classification.