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Singapore visa-free

Visa is the annotation and seal of the sovereign organ of a country on the passport or other travel documents held by its own or foreign citizens to show that they are allowed to enter or leave the country or pass through it. It can also be said that it is an endorsement certificate issued to them. What is the function of a visa? Visa is a measure taken by a sovereign country to safeguard its sovereignty, dignity, security and interests. Visa is an important means for a sovereign country to implement entry and exit management. If citizens of a country want to travel, settle down, do business or study in other countries, they must have their own passports or travel documents. Another necessary condition is to obtain visas to other countries. Otherwise, it is impossible to make a trip.

What kinds of visas are there? Generally, according to the nature of entry and exit, it is divided into six categories: exit visa, entry visa, entry visa, re-entry visa and transit visa. Some countries (regions) classify visas issued by applicants as diplomatic visas, official visas, immigrant visas, non-immigrant visas, courtesy visas, tourist visas, work visas, study visas, business visas and family visas. At present, visas in most countries in the world are divided into diplomatic visas, official visas and ordinary visas. There are four kinds of visas in China: diplomatic visa, courtesy visa, official visa and ordinary visa. At present, the most commonly used visa codes in the United States, among which non-immigrant visa codes are as many as 18, and each category is subdivided into multiple items. A brief introduction is as follows: (1)A visa (i.e. diplomatic official visa) is issued to: A- 1: ambassadors, ministers, career diplomats, consular officials and their families of foreign governments accredited to the United States; A-2: other officials, employees and their families of foreign governments; A-3:A- 1 and A-2 visa holders' entourage, servants, private employees and their families. (2) Class B visa (i.e. business tourist visa) is issued to: B- 1: short-term stay personnel for the purpose of dealing with business, inspection, visit and other related affairs; B-2: Visiting relatives and friends and traveling for a short time. (3) Class C visas (i.e. transit visas) are issued to: C- 1: transit foreigners; C-2: Foreigners in transit at United Nations Headquarters in new york; C-3: Foreign government officials, attendants, servants, private employees and their families in transit. (4) Class D visas (i.e. crew visas and seafarers' visas) are issued to crew members on international flights and seafarers on ships in various countries. (5) Class E visas (i.e., international treaty or agreement investor visas) are issued to: E- 1: those who do business in the United States according to international treaties or agreements, their spouses and children; E-2: Investors and their spouses and children are in the United States according to international treaties or agreements. (6) Class F visa (i.e. study visa) is issued to: F- 1: international students (i.e. self-funded international students); F-2:F- 1 Spouses and children of visa recipients. (7) Class G visas (i.e. visas for employees of international organizations) are issued to: G- 1: chief permanent representatives of foreign governments accredited to international organizations recognized by the government, staff members under their representatives and their families; G-2: other foreign government representatives accredited to international organizations recognized by the government and their families; G-3: representatives of foreign governments and international organizations and their families who are not recognized by the government, or representatives of foreign governments and their families who are not members of international organizations; G-4: officials, employees and their families of international organizations; G-5: the entourage, servants, private employees and their families of the above-mentioned G 1-G4 visa holders. (8) Class H visas (i.e. visas for temporary employees and trainees) are issued to: H- 1: foreigners with special professional skills who work temporarily; H-2: foreigners who work temporarily because of the lack of a certain type of work or occupation in China; H-3: foreigners receiving various trainings; H-4: spouses and children of the above-mentioned H- 1 ~ H-3 visa holders. (9) Class I visas (that is, journalist visas) are issued to representatives of news, radio, television and other institutions in the United States, journalists, their spouses and children. (10) class j visa (that is, exchange visitor visa) is issued to: J- 1: international students, advanced students and various scientific researchers dispatched according to the bilateral exchange visitor program approved by the government; J-2: Spouses and children of visa recipients. (11) A K visa (i.e. a marriage visa) is issued to: K- 1: a foreigner who must go to the United States to marry an American citizen; K-2: Adult children of visa holders. (12)L-type visa (i.e. employee visa of multinational companies) is issued to: L- 1: personnel of subsidiaries, offices or international enterprises of American multinational companies temporarily working in the United States; L-2: Spouses and children of visa holders. (13)M visa (i.e. non-academic international student visa) is issued to foreign students studying full-time in American vocational universities or colleges. (14)N visas (that is, accompanying visas for parents and children of some special immigrants) are issued to the families (parents and children) brought by the staff of some international organizations during their employment in the United States. (15)O visa (that is, excellent talent visa) is issued to: O- 1: people recognized in science, education or business, sports, literature and art at home or abroad; O-2: Attaché of the above-mentioned sports or literary figures. (16) The P visa (that is, the visa for outstanding talents in entertainment and sports) is issued to individuals or groups among outstanding performers in entertainment and outstanding athletes participating in competitions. (17)Q visa (i.e. cultural exchange visa) is issued to those who go to the United States for short-term cultural exchange. (18)R visa (that is, religious worker visa) is issued to those who go to the United States to engage in professional religious work for a short time. (19) The staff visa for national defense scientific research projects is issued by the U.S. government to the staff appointed by countries with national defense equality and reciprocity treaties (no visa code). (20) The work visa for the education of the disabled is issued to the personnel who go to the United States to carry out the education and training program for the disabled (no visa code). In addition, there are many codes for visas in China. These codes are issued to: (1)C: visa indicating that the holder is a crew member; (2)D: visa for settlement in China; (3)F: business or visiting visa to China; (4)G: indicates a transit visa; (5)L: visa for coming to China or visiting relatives; (6)X: visa for studying in China for more than half a year; (7)Z: visa for work or employment in China; (8)W: indicates visas issued to members of diplomatic or consular missions in China.

Therefore, you still have to apply for a visa! Give you more information for your understanding! Wish: Have a nice trip:)