Airports in Portugal have issued warnings regarding potential two-hour queues for travelers as the Entry/Exit System (EES) border control system is implemented. The concerns follow a joint statement issued by the European airport association ACI Europe and the airline industry association A4E on March 30-31, 2026, highlighting the operational challenges posed by the new biometric requirements www.theportugalnews.comwww.aci-europe.org. While industry bodies have expressed broad concerns regarding the rollout across the EU, specific warnings of significant delays have been most prominently reported at Portuguese transit hubs. Other member states, including France, Belgium, and the Netherlands, have also reported varying levels of disruption or adjustments to their biometric rollout schedules as the system goes live www.connexionfrance.comwww.frenchentree.comwww.visahq.com.