Foreign nationals entering Korea are generally required to have a valid passport and a Korean visa assigned by overseas branch of Korean embassy or consular offices. However, many are now permitted visa-free for a limited period under certain conditions. South Korea maintains a visa waiver agreement list [1] and a designated visa-free entry list [2] with countries not included on those lists requiring a visa to enter the country [3]. In addition, foreigners wishing to engage in certain activities such as diplomatic work, gainful employment, study or residence must apply for the appropriate visa prior to engaging in that activity in country.