Short-term foreigners can switch to self-quarantine: Exceptions for short-term visitors with family to Korea Quarantine conditions for long-term stays and Korean nationals * You can call the KCDA hotline at 1339 (available 24/7) or this website to learn more about the nearest test center. Quarantine requirements for short-term visitors (non-residents) *The short-stay visa waiver (less than 90 days) was reintroduced in November. However, short-term travelers will need a K-ETA prior to arrival and will need to apply here. .