This year marks the 30th anniversary of the Harmonized System

The year 2018 marks the 30th Anniversary of the Harmonized System (HS) which came into effect on January 1, 1988.

The HS forms the basis for Customs tariffs and statistical nomenclatures around the world, and is used to classify around 98% of world trade.

As a multipurpose nomenclature for trade, the HS is one of the most successful instruments developed by the World Customs Organization (WCO). Its Convention has 156 Contracting Parties and the HS is used by more than 200 countries, territories and Customs or Economic Unions.

It is updated regularly and is now in its 6th edition, and the WCO is in the process of preparing the Seventh Edition for 2022.

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