On January 10, the Central Epidemic Command Center (CECC) announced that as the variant Omicron spreads rapidly around the world, starting 00:00 on January 11, 2022 (incoming flight's scheduled arrival time), quarantine measures for arrivals will be adjusted as follows to reduce the threat posed by COVID-19 to domestic epidemic prevention efforts. Arrivals are urged to cooperate with the following measures:

Travelers arriving in Taiwan on long-haul flights between the country and the Americas, Europe, the Middle East, New Zealand, and Australia will be required to undergo a government-funded rapid RT-PCR test when their flight touches down. Travelers testing negative can then proceed to customs and immigration and should take a quarantine vehicle to a quarantine hotel/government quarantine facility where they will complete quarantine; those testing positive will be transported to a designated hospital by ambulance on the airside of the airport after designated personnel complete document inspection.