The EU's Entry/Exit System, updated on 5 December 2023, will replace passport stamps with biometric border control, automatically tracking the 90/180-day rule for third-country nationals.
Regulation (EU) 2021/1134 established ETIAS, requiring visa-exempt travelers including US, UK, and Canadian citizens to obtain online pre-travel authorization before entering the Schengen Area.
Portugal published updated border regulations on 15 June 2021, easing COVID-19 travel restrictions and permitting non-essential travel from several third countries, including the US and UK.