What is the departure sign?

This is an exit visa. You need this to go abroad.

Visa refers to the endorsement, seal and attachment (such as a separate visa) by the administrative organ of a country or region on the passport or other travel documents held by citizens who are not from this country or region to show that they are allowed to enter or leave the country (or go to a third country through their country).

Visa is a kind of license issued by a government agency of a country according to its own laws to foreigners who apply for entry, exit or transit.

According to the principles of international law, any sovereign country has the right to decide whether to allow foreigners to enter or leave the country, and to issue visas, refuse to issue visas or announce the cancellation of visas already issued according to its own laws.

The visa is usually attached to the passport or other international travel documents held by the applicant. Under special circumstances, valid passports or other international travel documents can be written on a separate sheet. With the progress of science and technology, some countries began to issue electronic visas and biological visas, which greatly enhanced the anti-counterfeiting function of visas.

Visa plays an important role in checking and controlling entry-exit personnel, protecting national security and preventing illegal immigrants and criminals.

Passport is the holder's nationality and identity certificate, and visa is the permission certificate of a sovereign country to allow foreign citizens or their own citizens to enter, exit or transit.

Visa refers to the endorsement, seal and attachment (such as a separate visa) by the administrative organ of a country or region on the passport or other travel documents held by citizens who are not from this country or region to show that they are allowed to enter or leave the country (or go to a third country through their country).