Current visa, code-named the most is the United States, which are code-named non-immigrant visa as many as 18 species, each subdivided into a number of categories. Profile are as follows:
(1) A visa category (that is, diplomatic official visas) and the issue of targets are as follows:
A-1: foreign ambassadors accredited to the United States Government, Minister, career diplomats, consular officials and their family members;
A-2: other foreign government officials, employees and their families;
A-3: A-1 and A-2 visa category winners of the entourage, servants, private employees and their family members.
(2) B visa category (that is, business travel visas) and the issue of targets are as follows:
B-1: business to trade, study visits, and other related services for the purpose of dealing with the short-term stay;
B-2: short-term visiting relatives and friends, tourists.
(3) C visa category (that is, transit visas) and the issue of targets are as follows:
C-1: the transit of foreigners;
C-2: transit to the United Nations Headquarters in New York foreigners;
C-3: transit of foreign government officials, the entourage, servants, private employees and their families.
(4) D visa category (that is, crew members, seafarers visa) and the issue of targets for:
States on international flights and crew members on board * seafarers.
D-1 crew members or flight (with the original board the vessel or aircraft departure *);
D-2 flight crew members or staff (not the original board the vessel or aircraft departure *);
(5) E visa category (that is, international treaties or agreements investor visas) and the issue of targets are as follows:
E-1: According to international treaties or agreements in the U.S. business and their spouses and children;
E-2: According to international treaties or agreements in the U.S. investors and their spouses and children.
(6) F visa category (student visa) and the issue of targets are as follows:
F-1: study (that is, studying abroad at their own expense);
F-2: F-1 visa winners of the spouses and children.
(7) G visa category (that is, employees of international organizations visa) and the issue of targets are as follows:
G-1: Government recognition of a foreign government organized an international presence, chief Permanent Representative, on behalf of the subordinate staff and the staff members of the family;
G-2: Government does not recognize the foreign government representatives of international agencies and their families;
G-3: Government has not recognized by the international foreign government agencies and representatives of organizations of families of members of international agencies or non-members of foreign government representatives and their families;
G-4: International agencies officials, employees and their families;
G-5: G-1, G-2, G-3, G-4 of the servants, private employment staff and their families;
H-1 with outstanding achievements and capabilities of the temporary staff;
H-1 H-1B professional visa to work
H-2A agricultural labor to provide short-term staff;
H-2B non-agricultural labor to provide short-term staff;
H-4 H-1, H-2, H-3 to the families;
I NEWS staff, their spouses and unmarried children under the age of 21;
J-1 exchange visitor;
J-2 J-1's spouse and unmarried children under the age of 21;
K-1 fiance citizens of the United States (his wife);
K-2 American citizen fiance (his wife) under the age of 21-year-old unmarried children;
L-1 company by the deployment of international staff;
L-2 L-1 and the family members under the age of 21 unmarried children;
M-1 vocational school students;
M-2 M-1 to the spouse under the age of 21 and unmarried children;
N special immigrant spouses, persons under the age of 21 unmarried children;
O in science, arts, education, business, sports have special achievements, to the United States continue to pursue their work, their spouses, persons under the age of 21 unmarried children can peer;
P activists, artists, performing arts groups in the United States exchanged under the scheme, the spouse, under the age of 21 unmarried children can peer;
Q international cultural exchanges;
NATO-1 to NATO-7 in the North Atlantic Treaty of foreigners in the United States and the relevant staff.