Starting on 12 October 2025, the Entry/Exit System (EES) established by the European Union for the electronic registration of entries and exits of third-country nationals crossing the external borders of the Schengen area for short stays will come into force. Registration is mandatory for both foreign nationals subject to the short-stay visa requirement and those who are exempt from it. “Short stays” means a period of up to 90 days in any 180-day period, calculated as a single period for all European countries using the EES.