The ETIAS countries that will require travellers to have an EU travel authorisation will be those that are currently full EU Schengen States, as well as countries that are European Free Trade Association (EFTA) Members, European Microstates With Open Borders, as well as Future Schengen Members. Future Schengen Member Countries will need to implement ETIAS as part of joining the EU as a full member. A list of these countries and their classification is provided below: