What is the Brussels Tariff Nomenclature (BTN)?

The Brussels Tariff Nomenclature (BTN) refers to a classification system for imported goods that was used internationally before 1976. 

BTN is a standardized system of classification for imported goods, it is used in the specification of tariffs and statistics for the goods. The Brussels Tariff Nomenclature (BTN) was changed to Customs Cooperation Council Nomenclature (CCCN) in 1976. However, CCCN also did not last. 

In 1988, CCCN was replaced by the harmonized commodity description and coding system usually called the Harmonized System (HS) of tariff nomenclature. HS is based in Brussels, Belgium and has over 200 member countries. It is a standardized system of classifying products.