The high technology and secure authorization to enter the European countries are called the ETIAS. There is a set of procedures that you are supposed to follow in order to obtain an ETIAS authorization, and to make the process easy, the application and submission of the application are made highly simple and sophisticated. The ETIAS is not a visa at all, but it is the authorization that the citizens of some selected countries can go to visit the European nations.
When it comes to the question, What Countries need ETIAS, the answer to this question is nothing else but the name of all the 62 countries listed by the embassy. You do not need the visa details while applying for the ETIAS, and therefore, there are great differences in the visa and the ETIAS. The visa application can take up to 30 to 60 days, and on the other hand, the application of the ETIAS is just a game of minutes.
ETIAS and Schengen visa
When you have the ETIAS visa, you do not need the Schengen visa, and if you have a Schengen visa, that means you are not a part of the list of countries that are exempted from the visa for entering the European nations. Also, when you have the Schengen visa, you do not need the ETIAS as you can present the visa at the national border and enter Europe.
Revocation of the travel authorization
There are several reasons that can be the cause of the revocation of your ETIAS. If your details provided in the application for ETIAS are no longer applicable, your authorization can be revoked. There is also one more reason that if the traveler is found violating the rules of the ETIAS, his or her authorization can be revoked.