The calculation of duties depends, in most countries, on the assessable value of a dutiable shipment. For the purpose of this calculation, dutiable goods are given a classification code that is known as the Harmonized System code, which determines the applicable duty rate.All types of shipments (including gifts, samples and goods for repair) go through an import clearance process as determined by custom’s regulations in the destination country. The shipment is cleared through customs based on the type of goods, origin country, the value and quantity.This system is a multipurpose international product nomenclature developed by the World Customs Organization and continues to evolve.