The World Customs Organization (WCO) designed, developed, and maintains the categorisation system known as the Harmonized System (HS) code. Every commodity is given an HS code, which is used by customs agencies around the world to identify products when determining duties and taxes as well as for compiling statistics. The HS code assigned to it is internationally recognised in every country.
The World Trade Organization (WTO) established the six-digit Harmonized System Code (HS Code) to standardise product classification. Countries are free to establish national distinctions for tariffs and many other purposes above the six-digit level.