List of Nonimmigrant Categories

Foreign Government Officials 

A-1 :  Ambassador, Public minister, Career diplomat or Consular officer, or immediate family

A-2 :  Other foreign government official or employee, or immediate family

A-3 :  Attendant, servant, or personal employee of A-1 or A-2, or immediate family

Visitors

B-1 :  Temporary visitor for business

B-2 :  Temporary visitor for pleasure

B-1/B-2 :  Temporary visitor for business and pleasure

WB :  Visitor for business, Visa Waiver Program

WT :  Visitor for pleasure, Visa Waiver Program

Aliens in Transit 

C-1 :  Alien in transit directly through U.S.

C-1/D :  Combined transit and crewmember visa

C-2 :  Alien in transit to UN headquarters district under Section 11.(3), (4), or (5) of the Headquarters Agreement

C-3 :  Foreign government official, members of immediate family, attendant, servant, or personal employee, in transit

Commonwealth of the Northern Mariana Islands (CNMI)-Related 

CW-1 :  CNMI transitional worker

CW-2 :  Spouse or child of CW-1

Crewmen

D :  Crewmember (sea or air)

Treaty Traders and Treaty Investors 

E-1 :  Treaty Trader, spouse or child

E-2 :  Treaty Investor, spouse or child

E2-C :  Long-term foreign investors in the CNMI, spouse or child

E-3 :  Specialty occupation professionals from Australia

E3-D :  Spouse or child of E-3

E-3R :  Return E-3

Academic Students 

F-1 :  Academic student

F-2 :  Spouse or child of F-1

F-3 :  Canadian or Mexican national commuter student

Foreign Government Officials to International Organizations 

G-1 :  Principal resident representative of recognized foreign member government to international organization, and                      members of immediate family.

G-2 :  Other representative of recognized foreign member government to international organization, and members of                    immediate family.

G-3 : Representative of non-recognized or nonmember government to international organization, and members of                         immediate family

G-4 : International organization officer or employee, and members of immediate family

G-5 : Attendant, servant, or personal employee of G-1, G-2, G-3, G-4, or members of immediate family

Temporary Workers 

H-1B : Workers in a specialty occupation

H-1B1 : Chilean or Singaporean workers in a specialty occupation

H-1B2 : Workers in a specialty occupation related to Department of Defense Cooperative Research and Development                      projects or Co-Production projects

H-1B3 : Fashion models of distinguised merit and ability

H-1C : Registered nurses working in a health professional shortage area as determined by the U.S. Department of Labor

H-2A : Temporary agricultural worker

H-2B : Temporary non-agricultural worker: skilled and unskilled

H-2R : Returning H-2B

H-3 : Trainee

H-4 : Spouse or child of H-1, H-2, H-3

Foreign Media Representatives 

I : Representative of foreign information media, spouse and child

Exchange Visitors  

J-1 : Exchange visitor

J-2 : Spouse or child of J-1

Fiancé(e) of US Citizen

K-1 : Fiancé(e) of U.S. citizen

K-2 : Child of fiancé(e) of U.S. citizen

K-3 : Spouse of a U.S. citizen awaiting availability of immigrant visa

K-4 : Child of K-3

Intracompany Transferee

L-1A : Intracompany transferree (executives and managers)

L-1B : Intracompany transferee (specialized knowledge)

L-2 : Spouse or child of L-1

Vocational and Language Students 

M-1 : Vocational student or other nonacademic student

M-2 :  Spouse or child of M-1

M-3 : Canadian or Mexican national commuter student (vocational student or other nonacademic student)

N-8 : Parent of SK-3 or SN-3

N-9 : Child of N-8 or of SK-1, SK-2, SK4, SN-1, SN-2, or SN-4

North Atlantic Treaty Organization 

NATO-1 : Principal permanent representative of member state to NATO (including any of its subsidiary bodies) resident in                  the United States and resident members of official staff; Secretary General, Assistant Secretaries General, and                     Executive Secretary of NATO; other permanent NATO officials of similar rank, or immediate family

NATO-2 : Other representatives of member state to NATO (including any of its subsidiary bodies) including                                         representatives, advisers, and technical experts of delegations, or immediate family; dependents of member of a                 force entering in accordance with the provisions of the NATO Status-of-Forces Agreement or in accordance with                  the provisions of the "Protocol of the Status of International Military Headquarters"; members of such a force if                       issued visas

NATO-3 : Official clerical staff accompanying representative of member state to NATO (including any of its subsidiary                         bodies), or immediate family

NATO-4 : Official of NATO other than those classifiable as NATO-1, or immediate family

NATO-5 : Expert, other than NATO officials qualified under NATO-4, employed in missions on behalf of NATO, and their                       dependents

NATO-6 : Member of civilian component accompanying a force entering in accordance with the provisions of the NATO                      Status-of-Forces Agreement; member of a civilian component attached to or employed by an Allied headquarters

                under the "Protocol on the Status of International Military Headquarters" set up pursuant to the North Atlantic

                Treaty; and their dependents

NATO-7 : Attendant, servant, or personal employee of NATO-1, NATO-2, NATO-3, NATO-4, NATO-5, NATO-6, or                                 immediate family

Workers with Extraordinary Abilities 

O-1A : Alien with extraordinary ability in sciences, education, business, or athletics

O-1B : Alien with extraordinary ability in the arts, motion picture, and television

O-2 : Alien accompanying and assisting in the artistic or athletic performance by O-1

O-3 : Spouse or child of O-1 or O-2

Athletes and Entertainers 

P-1 : Internationally recognized athlete or member of internationally recognized entertainment group

P-2 : Artist or entertainer in a reciprocal exchange program

P-3 : Artist or entertainer in a culturally unique program

P-4 : Spouse or child of P-1, P-2, or P-3

International Cultural Exchange Visitors 

Q-1 : Participant in an international cultural exchange Program

Q-2 : Irish Peace Process Cultural and Training Program (Walsh Visas)

Q-3 : Spouse or child of Q-2

Religious Workers  

R-1 : Religious workers

R-2 : Spouse or child of R-1

Witness or Informant  

S-5 : Certain aliens supplying critical information relating to a criminal organization or enterprise

S-6 : Certain aliens supplying critical information relating to terrorism

S-7 : Qualified family member of S-5 or S-6

Victims of a Severe Form of Trafficking in Persons 

T-1 : Victim of a severe form of trafficking in persons

T-2 : Spouse of T-1

T-3 : Child of T-1

T-4 : Parent of T-1

T-5 : Unmarried Sibling under age 18 of T-1

North American Free Trade Agreement (NAFTA)

TN : NAFTA professional

TD : Spouse or child of NAFTA professional

Transit Without Visa 

TWOV : Passenger / Crew

Victims of Certain Crimes 

U-1 : Victim of criminal activity

U-2 : Spouse of U-1

U-3 : Child of U-1

U-4 : Parent of U-1 under 21 years of age

U-5 : Unmarried sibling under 18 of U-1 under 21 years of age

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Certain Second Preference Beneficiaries 

V-1 : Spouse of a lawful permanent resident alien awaiting availability of immigrant visa

V-2 : Child of a lawful permanent resident alien awaiting availability of immigrant visa

V-3 : Child of a V-1 or V-2

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Temporary Protected Status (TPS) 

TPS : Temporary Protected Status