(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: foreigners in transit;
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 and seamen visas) are issued to:
Crew members on international flights and seafarers on ships of various countries.
(5) Class E visa (i.e. international treaty or agreement investor visa) is issued to:
E- 1: spouses and children of those who do business in the United States according to international treaties or agreements;
E-2: Investors and their spouses and children are in the United States according to international treaties or agreements.
(6) Class F visas (i.e. study visas) are issued to:
F- 1: overseas students (that is, self-funded 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: the chief permanent representative of a foreign government accredited to an international organization, the staff under his representative and the family members of the above-mentioned persons recognized by the government;
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. temporary employee and intern visas) are issued to:
H- 1: foreigners who work temporarily with special professional skills;
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) A first-class visa (that is, a journalist visa) is issued to:
Representatives, journalists, spouses and children of American news, radio, television and other institutions.
(10) class j visa (i.e. exchange visit visa) is issued to:
J- 1: international students, advanced students and various scientific researchers sent according to the bilateral exchange and visiting scholar program approved by the government;
J-2: Spouses and children of visa recipients.
K visa (i.e. marriage visa) is issued to:
K- 1: foreigners who have to go to the United States to marry American citizens;
K-2: Adult children of visa holders.
(12) class l visa (i.e. employee visa of multinational company) 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 (i.e. excellent talent visa) issued to:
O- 1: a nationally or internationally recognized figure in science, education or business, sports, literature and art;
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).
Extended data
According to the entry and exit situation, it can be divided into six categories: exit visa, entry visa, entry visa, re-entry visa and transit visa. The exit visa only allows the holder to leave the country. If it is necessary to enter the country, another entry visa is required. The entry visa only allows the holder to enter the country, and if he needs to leave the country, he must apply for an exit visa again. Holders of entry-exit visas can leave or re-enter the country. Holders of multiple entry and exit visas can be allowed to enter and leave the country within the validity period of the visa.
According to the routine of entry and exit, it can be divided into: diplomatic visa, official visa, immigrant visa, non-immigrant visa, courtesy visa, tourist visa, work visa, study visa, business visa and family visa. Every country is different.
According to the length of time, it is divided into: long-term visa and short-term visa. The concept of a long-term visa is to stay in the destination country for more than 3 months. It usually takes a long time to apply for a long-term visa, regardless of the purpose of the visit. A visa that stays in the destination country for no more than 3 months is called a short-term visa, and it takes a relatively short time to apply for a short-term visa.
According to the number of entry, it can be divided into: single entry visa and multiple entry visa.
According to the number of users, it can be divided into individual visa and group visa.
According to the convenience provided for the holder: there are separate visas, visas on arrival, etc.
Visas in most countries in the world are divided into diplomatic visas, official visas and ordinary visas.
There are four kinds of visas in People's Republic of China (PRC): diplomatic visa, courtesy visa, official visa and ordinary visa, which are issued to foreigners who apply for entry.
Immigrant and non-immigrant visas
According to the applicant's entry purpose, visas can be divided into immigrant visas and non-immigrant visas. Obtaining an immigrant visa means that the applicant has obtained the permanent residence in the country where he goes, and after living for a certain period of time, he can become a legal citizen of that country. Non-immigrant visas can be divided into business, labor, study abroad, tourism, medical care and other categories.
Anti-visa
It means that the inviter completes the visa approval certificate for the visitor in the exit-entry administration department of the country he is going to, and then submits it to the embassy or consulate of the country where the visitor is located together with the applicant's passport, application form and other materials. The embassies and consulates of the visiting countries issue visas on the applicant's passport with the approval materials, and do not seek the opinions of relevant domestic departments. Generally speaking, getting a countersignature means that entry is approved, and there is no need to wait too long after the passport is sent to the country's embassy in China. Most countries that implement counter-signing are in Asia, such as Japan, South Korea, Indonesia, Singapore and Malaysia.
Port visa
It refers to applying for a visa (also called visa on arrival) at the port of entry of the destination country. Generally speaking, to apply for a port visa, the inviter needs to apply to the entry-exit administration department of the host country in advance, and after approval, a copy of the approval certificate will be sent to the visitors. The latter left the country with this card and obtained a visa when arriving at the port of the destination country.
The countries that issue port visas to foreign citizens are mainly some countries in West Asia, Southeast Asia, the Middle East and Oceania.
A separate paper visa
A separate paper visa is also a form of visa. Generally speaking, a visa is usually signed or labeled on the inside of a passport, while a separate paper visa is endorsed on a special paper outside the passport. Its function is the same as the visa endorsed on the passport, but it must be used at the same time as the passport.
Mutual permission and visa exemption
With the continuous development of international relations and tourism in various countries, visa exemption has been developed to facilitate friendly exchanges between citizens of various countries. According to the agreement signed by the foreign ministries of the two countries, citizens of the two countries can freely enter and leave each other's territory with valid passports without visas. Visa exemption can be divided into complete visa exemption and partial visa exemption.
transit visa
When citizens of a country travel internationally, they often have to go through one or two countries before they finally reach their destination. At this time, it is necessary to obtain not only the entry permit of the country, but also the transit permit of the country, which is the so-called transit visa. The regulations on transit visas vary from country to country. Many countries stipulate that all foreigners who enter a third country through the country need to apply for a visa regardless of the length of their stay. According to international practice, if there are no special restrictions, citizens of a country should be issued with transit visas as long as they hold valid passports, entry visas or joint air tickets.
References:
Baidu encyclopedia-visa