The European Court of Justice Chamber X with case n.725/21 of 9.03.2023 , stated that: in the customs nomenclature there is not a definition of ‘part’ ; part does not cover items which are not indispensable, for the completed good, to fulfil its function. It is useful to share the following points of the judgement: “….in accordance with General Rule 1 for the interpretation of the CN, the tariff classification of goods is determined according to the terms of the headings and section or chapter notes of that nomenclature. In the interests of legal certainty and ease of control, the decisive criterion for the tariff classification of those goods must…