European Travel Information and Authorization System

The ETIAS is an upcoming digital form of travel authorisation that will be applicable for certain travellers entering the EU. ETIAS is an abbreviation for European Travel Information and Authorization System.
The ETIAS will apply to travellers that at present may travel into the EU without a visa. The ETIAS in its nature and its process resembles that of the ESTA or ETA for the USA and Canada respectively.
Planning for the ETIAS has been underway for many years, although it is not expected to be implemented until 2022. At this point, it is possible that UK Passport holders will require an ETIAS to enter the EU.