Electronic Travel Authorization (ETA) is required before visiting Korea through the Visa Waiver Program. It is a system that reviews travelers and approves travel online. All visitors wishing to travel to the Republic of Korea must possess a currently valid visa and If not, you must obtain advance travel authorization through the Electronic System for Travel Authorization. All visitors applying for an ETA must have a passport specified for each country. Must be present and meet the conditions under the Visa Waiver Program. Passport valid at least 72 hours prior to entry, valid email address We recommend that you prepare a face photo and obtain prior permission through ETA.