Beyond the EU Data Hub: harmonising customs knowledge

The EU is building a single Customs Data Hub - but harmonised data and harmonised law will not, on their own, produce consistent customs decisions across twenty‑seven member states. This article argues that the customs reform is the moment to add the missing element: harmonised customs knowledge. It traces how EU customs governance has evolved from physical supervision to administrative control and, increasingly, to trust‑based partnership between authorities and business, and shows why divergent interpretation of the same rules still creates uncertainty and risk for traders operating across borders. It sets out what knowledge‑based governance would involve - deeper cooperation between customs authorities, business, and academia, and shared professional understanding embedded in the new framework - and what is at stake if it is left out. For policymakers, trade associations, and customs professionals following the reform, it offers a clear view of what 'harmonisation' should mean beyond the Data Hub.