Customs procedures at the borders ensure the protection of citizens, the economy, and the state. As a result of the terrorist attacks of September 11, 2001, these controls were significantly tightened. Since then, states have focused on greater security in the supply chain. The Authorized Economic Operators (AEOs) is an important tool to ensure high standards of security while at the same time customs clearance is accelerated. But more needs to be done to realize the full potential of the AEOs.