The non-immigration visas are the business visas B-1, B-2, E-1, E-2, the employment visas H-1A, H-1B, H-2A, H-2B, H-3, L-1A, L-1B, O-1, P-1, P-2, P-3, and the student visas F-1, F-2, M-1.

Generally speaking, B-1, and B-2 visas are the most flexible and easier to apply for entering United States. It is open to all business person whether for studying the market or/and building a business foothold in U.S.

The duration of visas are: B-1 for 6 months; B-2 for 1 year; E-1 for 5 years; E-2 for 5 years; L-1A and L-1B for 1 to 3 years.

To apply the B-1 and B-2 visas, the applicant must successfully in meeting the immigration officer at a U.S. embassy:

To apply for employment or other visa category E, L, O, P, F, F, M, one must have the employer and/or the U.S. authorities obtaining U.S. Immigration approval before visa application to an U.S. embassy outside United States.