Following the adoption of K-ETA, citizens of 112 countries and regions who were previously entitled for visa-free entry need now apply for K-ETA in order to get boarding permits (flight or ship) K-ETA authorization is typically good for up to two years or until your passport expires, whichever comes first. The K-ETA program is NOT a visa. K-ETA approval does not ensure entrance to South Korea; the ultimate decision will be made by a Korea Immigration Service official at a port of entry. Please keep in mind that if the information on the authorized K-ETA does not match the information on your passport, your admission into South Korea will be denied.