Excuse me, what is a bus sign?

After obtaining an entry visa from a country (region), a citizen passes through a third country (region) when riding a vehicle, which is called a transit visa. Some countries stipulate that passengers who stay in transit for no more than 24 hours or a certain period of time by means of transportation can be exempted from obtaining a transit visa (generally not allowed to leave the international airport). Some countries also stipulate that transit visas are required regardless of the length of stay and whether you leave the airport or not.

Transit visas, like entry and exit visas, have provisions on validity and stay period. The following reference materials

1. Passengers with China passports transfer in Britain, the United States, Canada, Australia, New Zealand, South America and other countries;

2. The transfer time is more than 24 hours, or it is necessary to leave the transfer area, or the transfer flight takes off at different airports;

3. Transfer in Hong Kong with a business passport;

4. If you are transferred to other non-Schengen countries for two or more consecutive times, you must apply for a Schengen visa or a transit visa.