The J-1 is a visa offered through the Department of State as part of a cultural exchange program. While there are many J-1 occupational categories, employers most frequently sponsor employees in the intern and trainee categories.

The O-1 nonimmigrant visa is for the individual who possesses extraordinary ability in the sciences, arts, education, business, or athletics, or who has a demonstrated record of extraordinary achievement in the motion picture or television industry and has been recognized nationally or internationally for those achievements.

The P-1 classification applies to you if you are coming to the U.S. temporarily to perform at a specific athletic competition as an athlete, individually or as part of a group or team, at an internationally recognized level of performance.

The P-3 classification applies to artist or entertainers coming to the U.S. to participate in a culturally unique program.

An R-1 is a foreign national who is coming to the United States temporarily to be employed at least part time (average of at least 20 hours per week) by a non-profit religious organization in the United States (or an organization which is affiliated with the religious denomination in the United States) to work as a minister or in a religious vocation or occupation.

The North American Free Trade Agreement (NAFTA) created special economic and trade relationships for the United States, Canada and Mexico. The TN nonimmigrant classification permits qualified Canadian and Mexican citizens to seek temporary entry into the United States to engage in business activities at a professional level. The TN classification is limited to professionals in certain occupations; a complete list of those occupations can be found here.