“91. Article 12(1) and (2)(a), third indent, of the implementing regulations states that, following an amendment to the Explanatory Notes of the CN, the customs authorities are to take necessary steps to ensure that BTIs are thenceforth to be issued only in conformity with those notes as of the date of their publication in the Official Journal of the European Union. 92. However, as was observed in paragraph 63 of this judgment, the Explanatory Notes to the CN, whilst they constitute an important means of ensuring the uniform interpretation of the CN by the customs authorities of the Member State, do not have legally binding force … . 93. Those considerations lead to the conclusion that when an application is made to the customs authorities for the issuing of a BTI, those authorities must comply with the Explanatory Notes to the CN in order to ensure the uniform application of customs law in the European Union. If there is a disagreement between those authorities and economic operators as to whether those notes are consistent with the CN and on the classification of goods, it is incumbent on economic operators to bring proceedings before the competent authority.”