Generally, a citizen of a foreign country who wishes to enter the United States must first obtain a visa, either a nonimmigrant visa for temporary stay, or an immigrant visa for permanent residence. Temporary worker visas are for persons who want to enter the United States for employment lasting a fixed period of time, and are not considered permanent or indefinite. Each of these visas requires the prospective employer to first file a petition with U.S. Citizenship and Immigration Services (USCIS). An approved petition is required to apply for a work visa.
H-1B: Person in Specialty Occupation
To work in a specialty occupation. Requires a higher education degree or its equivalent. Includes fashion models of distinguished merit and ability and government-to-government research and development, or co-production projects administered by the Department of Defense.
H-1B1: Free Trade Agreement (FTA) Professional
To work in a specialty occupation. Requires a post-secondary degree involving at least four years of study in the field of specialization.
H-2A: Temporary Agricultural Worker
For temporary or seasonal agricultural work. Limited to citizens or nationals of designated countries, with limited exceptions, if determined to be in the United States interest.
H-2B: Temporary Non-agricultural Worker
For temporary or seasonal non- agricultural work. Limited to citizens or nationals of designated countries, with limited exceptions, if determined to be in the United States interest.
H-3: Trainee or Special Education visitor
To receive training, other than graduate medical or academic, that is not available in the trainee’s home country or practical training programs in the education of children with mental, physical, or emotional disabilities.
H-4: Visa issued by USCIS to immediate family members of the H Visa holders.
USCIS allows immediate family members of H visa holders (H-1A, H-1B, H-1B1, H-2A, H-2B, or H-3) to get H-4 visas to lawfully come and stay in the US.