Non-Immigrant Visa Classifications

A-1/A-2
Foreign Diplomat Personnel. Individuals (and members of their immediate family) in the US as employees of a foreign government.
A-3
Employee of Foreign Government Official. Attendant, servant, or personal employee of A1 and A2 classes, and members of immediate family.
B-1
Temporary Visitor for Business.
B-2
Temporary Visitor for Pleasure.
C-1
Aliens in Transit through US - not diplomats.
C-2
Aliens in Transit - to and from UN HQ.
C-3
Aliens in Transit through US - Diplomats
D-1/D-2
Crewmember/Crew List. Crewmembers employed on an aircraft or vessel who are in the US on "stopovers."
E-1
Treaty trader, spouse and children.
E-2
Treaty investor, spouse and children.
F-1
Student (academic or language training program)
F-2
Dependent of F-1.
F-3
Border Commuter Student.

G-1/G-2/

G-3/G-4

Representative of International Organization.  His/her staff, and members of immediate family on long-term assignment
G-5
Personal employee of G-1, G-2, G-3, G-4 visa holder and members of immediate family.
H-1B
Temporary worker in  specialty occupation.
H-1C
Registered Nurses.
H-2A
Agriculatural Worker. Temporary worker performing agricultural services unavailable in the United States.
H-2B
Skilled or Unskilled Worker. Temporary worker performing non-agricultural services unavailable in the United States
H-3
Industrial Trainee.
H-4
Dependent of H1, H2 or H3.
I
Representative of foreign information media and dependents.
J-1
Exchange Visitor.
J-2
Dependent of J-1.
K-1/K-2
Fiance(e) of a US Citizen and Dependents.
K-3/K-4
Spouse of US Citizen and Dependents.
L-1
Intra-company transferee (executive, managerial, and specialized personnel continuing employment with an international firm or corporation)
L-2
Dependent of L-1.
M-1
Vocational Student.
M-2
Dependent of M-1.
NATO 1-6
NATO Personnel.
N-8
Parent of alien (minor) accorded special Immigrant status.
N-9
Child of parent accorded special Immigrant status.
O-1
Aliens with extraordinary ability in sciences, arts, education, business or athletics.
O-2
Aliens accompanying and assisting O-1 visa holder in a professional capacity.
O-3
Dependent of O-1 or O-2.
P-1
Athletes and entertainers for a specific competition or performance
P-2
Athletes and entertainers participating in reciprocal exchange program.
P-3
Artists and entertainers performing under a program that is culturally unique.
P-4
Dependent of P1, P2 or P3.
Q
International Cultural Exchange Visitor (and dependents).
R-1/R-2
Religious Worker and dependents.
TN
Trade NAFTA - Canadian or Mexican citizen working in a professional capacity under the North American Trade Agreement.
TD
Dependent of TN Visa Holder.