An H-3 classification applies to an alien who is coming temporarily to the United States:
(1) As a trainee, other than to receive graduate medical education or training, or training provided primarily at or by an academic or vocational institution, or
(2) As a participant in a special education exchange visitor program which provides for practical training and experience in the education of children with physical, mental, or emotional disabilities.
The H-2B visa category is used by U.S. employers to temporarily employ skilled or unskilled foreign nationals in nonagricultural positions for which the employer has a temporary need and for which qualified U.S. workers are unavailable. The company must plan to employ the foreign nationals for a temporary period and the employer’s need for the skills of the foreign nationals must also be temporary. In addition, the employer must seek a “labor certification” from the U.S. Department of Labor (DOL) certifying that: