What is the longest stay of transit visa in the United States?

The maximum stay time of transit visa in the United States is uncertain, and the stay time after entering the United States is given by the immigration officer of the customs according to the departure date of the holder's connecting flight in the United States.

The shortest is 72 hours of transit and 30 days of travel, and the longest is to obtain a permanent residence visa.

An American visa is an annotation and seal on the passport or other travel documents held by American or foreign citizens, which is used to indicate the procedures for allowing them to enter or leave the United States or pass through the country. It can also be said that it is an endorsement certificate issued to them. American visas can be divided into two categories: immigrant visas and non-immigrant visas; Each big category can be divided into many small categories.

A- 1。 Foreign ambassadors, senior officials, diplomatic or consular officials and their families

A-2。 Other foreign government officials or employees and their family members.

A-3' s waiter, servant or personal assistant. A- 1 and A-2 visa holders and their families.

B- 1。 Short business visit

B-2。 Short - term travel

C- 1。 Alien transit

C2。 Entry/transit of qualified foreigners to and from United Nations Headquarters and foreign countries.

C3 explosive. Transit of foreign government officials, family members, waiters, servants and personal assistants

D- flight attendant

E- 1。 Businessmen, spouses and minor children

E-2。 Investors, spouses and minor children

F- 1。 A full-time student enrolled in a law school.

F-2。 Spouses and minor children of students

G- 1。 Chief representatives, members and their families of foreign government member countries recognized by international organizations.

G2。 Representatives of other recognized members of foreign governments

G3。 Chief representatives, members and their families of non-member countries of international organizations not recognized by foreign governments.

G-4。 Officials or staff members of international organizations and their families

G-5 waiters, servants or personal assistants and family members. G- 1, G-2, G-3, G-4 visa holders.

H- 1A。 Professional nurse

H- 1B。 Short-term professional workers in designated occupations

2A。 Short-term or seasonal short-term agricultural workers

2B。 Skilled and unskilled workers engaged in short-term service or labor

H-3。 intern

H-4' s spouse and minor children. H- 1, H-2 and H-3.

I. Representatives of foreign media, spouses and minor children

J- 1。 Exchange visiting scholars of approved projects

J-2. J- 1 spouses and children of exchange visiting scholars

K- 1。 The fiance (wife) of an American citizen immigrated to the United States.

K-2。 K- 1 children of fiancee

L- 1A。 Executives and managers of American branches

L- 1B。 Professional knowledge staff

L-2。 Spouses and children of L- 1

Mi (short for meter) is a short-term vocational training visa for students to come to the United States during holidays. This kind of training may not be a language school, but generally a university.

N-8。 Parents of foreign children designated as special immigrants

N-9。 Children whose parents are designated as special immigrants.

Nato-1. Permanent Chief Representatives of North Atlantic Treaty Organization Member States and Their Families

NATO -2. Other representatives and families of NATO member States

NATO -3. Family members of cooperative officials and representatives of North Atlantic Treaty Organization member countries

Four NATO countries. Other North Atlantic Treaty Organization officials and family members

Five NATO countries. Experts employed on behalf of the North Atlantic Treaty Organization mission who do not meet NATO -4 conditions and their entourage.

Six NATO countries. Under the control of the North Atlantic Treaty Organization, the staff and their entourage who entered by force.

Attendants, servants or personal assistants of NATO -7 and their families. NATO-1, NATO -2, NATO -3, NATO -4, NATO -5 and NATO -6.

O- 1。 Foreigners or athletes with outstanding abilities in science, art, education and business.

Oxygen. Some foreigners follow O- 1 visa holders.

O-3。 O- 1 visa holder's family members

P- 1。 International athletes or international performing arts groups

P-2。 Art or performing arts groups participating in exchange programs.

P-3。 Art or performing arts groups participating in special cultural exchange projects

P-4 spouse or child. P- 1, P-2 and P-3

Q- 1。 Participants in international cultural exchange programs

R- 1。 religious people

R2。 Spouse or children of R- 1

S-5。 Individuals who provide emergency information about illegal organizations or enterprises.

S-6。 Individuals who provide information related to terrorist organizations

Practitioners of the North American Free Trade Act

TD。 Spouses or children of NAFTA employees