What is a passport?

Passport type PA represents type/Type:P (meaning passport in English) ordinary private passport, that is, passport refers to personal, private, which is an ordinary passport. Singapore visa is a passport. It is an endorsement or stamp on the passport or other travel documents held by the country or foreign citizens by the sovereign authority to indicate that they are allowed to enter and exit the country or go through border procedures. It can also be said to be an endorsement issued to them. Proof of formula. In summary, a Singapore visa is a document issued by Singapore's immigration management agency (such as the Immigration Bureau or Ministry of Manpower and embassies abroad) to express approval of entry to foreign citizens. Extended information: Singapore visa types are generally divided into three types according to time: short-term visas (such as tourist visas, visiting relatives and friends visas and business visas, etc.); long-term visas (such as long-term tourist visas, student passes, employment passes, etc.) ); the former has a short stay in Singapore (4-30 days), the latter has a longer stay (ranging from 3 months to several years); multiple entry and exit visas. The types of passports issued by each country vary. China's passports are divided into diplomatic passports, official passports and ordinary passports. Ordinary passports are further divided into ordinary passports for official purposes and ordinary passports for private purposes. Passport numbers starting with G, P, S, or D are Chinese passports, those starting with G are ordinary private passports, those starting with P are ordinary public passports, those starting with S are official passports, and those starting with D are diplomatic passports. Passports have a certain validity period, and each country has different validity periods. China's diplomatic passport is valid for five years. Passport numbers are meaningless. They are randomly generated numbers and are arranged in the same order as coins. Boxes of passports are sent from the Ministry of Public Security to various entry-exit bureaus. The numbers are randomly assigned to each one according to the order of acceptance. .