The announcement was made today by the European Commission, which set the start date, explaining in a statement that, "from October 12, Member States will begin to gradually introduce the system over a period of six months."

"Border authorities will progressively register the data of third-country nationals crossing borders. By the end of this period, the system will be fully operational at all border crossing points," that is, by April 2026.

The Entry/Exit System (SES) is an automated computer system for registering third-country nationals traveling for short stays (up to 90 days) whenever they cross the external borders of any of the European countries using the system, including Portugal.

The system will collect biometric data, such as fingerprints, facial images, and other travel information, gradually replacing the current passport stamp system.

"The SES will modernize and improve the management of the EU's external borders and provide reliable data on border crossings, systematically detect overstays and cases of document and identity fraud, and will thus contribute to preventing irregular migration and protecting the security of European citizens," the EU executive emphasises in the press release.

The European Commission estimates that, "with the increased use of automated border controls, travel will become simpler and safer for everyone," as "the new system meets the highest standards of data protection and privacy, ensuring that travellers’ personal data remains protected and secure."

The goal of this phased rollout is to allow EU Member States to begin benefiting from the new system, while ensuring that border authorities, the transport sector, and affected travellers have time to adapt to the new procedures.

In the coming months, the European Commission—in conjunction with the European Union Agency for the Operational Management of Large-Scale IT Systems in the Area of Freedom, Security and Justice—will continue to monitor the system's implementation.

The SES will cover 29 European countries, including those in the EU and associated with Schengen, the European area of free movement.