Temporary visas
Travel for the purpose your classification permits
B-1 and B-2 do not authorize ordinary U.S. employment, and the visa expiry date is not the permitted stay.
B-1 and B-2
Business visits, tourism, family visits, medical treatment.
C and D
Transit and crewmembers; even a connection may need authorization.
I
Qualifying foreign media representatives.
A, G, NATO, CNMI
Official and territorial categories need their own review.
What to bring
Travel purpose, itinerary, prior visas and any past refusals.
Proposed legal fee
B-1/B-2 $1,500–$3,000; C-1 $1,000–$2,000; I visa $2,500–$4,000; others by quote. Government charges and screening are separate.
Can I work on a B-1 or B-2 visa?
No. These classifications do not authorize ordinary U.S. employment.
Reference: Visa directory