As we informed on 2023 the European Commission published on the official journal the “Proposal for a REGULATION OF THE EUROPEAN PARLIAMENT AND OF THE COUNCIL establishing the Union Customs Code and the European Union Customs Authority, and repealing Regulation (EU) No 952/2013”. About the AEO, the mentioned document (n. Document 52023PC0258 and COM/2023/258 final) provides with the following provisions. Firstly, about the “ex-post evluation/fitness checks of existing legislation” indicated into the explanotry memorandum “…the proposal undelines that “…Second, some tangible progress in improving the customs environment has been realised but does not evenly concern all the areas analysed in the evaluation. The UCC contributed to clarifying and harmonising customs…