●You used to be a Korean national : ① General Required Documents, ② Basic certificate or Family census register(deleted), ③ Copy of Naturalization certificate (We check original) If we can know exact date of your loss of Korean Nationality by Basic Certificate or Family census register(deleted), you don’t have to submit copy of Naturalization Certificate
●Either of your direct ancestor was a Korean national : ① General Required Documents, ② Basic certificate or Family census register(deleted) of your direct ancestor, ③ your (or your parents’) birth certificate
●Criminal history record check issued by FBI and apostille confirmation by US Department State office of Authentications Exemption object : ① 60 years of age or more, ② Children under 13 years of age, ③ Independence patriots and family of the deceased, ④ Special contributor
●Certificate of proficiency in Korean (one of the following documents) : ① TOPIK first grade or more, ② Sejong Hakdang elementary level 1B or more Exemption object : ① He or She had a korean nationalty in the past time, ② 60 years of age or more, ③ Children under 13 years of age, ④ He or She has been lived in Korea with the F-4 visa