Exchange Visitors Visas
 

http://uscis.gov/graphics/services/tempbenefits/ExchVisit.htm

The Immigration and Nationality Act (INA) provides two nonimmigrant visa categories for persons to participate in exchange visitor programs in the United States. The "J" visa is for educational and cultural exchange programs designated by the Department of State, Bureau of Consular Affairs, and the "Q" visa is for international cultural exchange programs designated by the U.S. Citizenship and Immigration Services (USCIS).

The "J" exchange visitor program is designed to promote the interchange of persons, knowledge, and skills in the fields of education, arts, and sciences. Participants include students at all academic levels; trainees obtaining on-the-job training with firms, institutions, and agencies; teachers of primary, secondary, and specialized schools; professors coming to teach or do research at institutions of higher learning; research scholars; professional trainees in the medical and allied fields; and international visitors coming for the purpose of traveling, observing, consulting, conducting research, training, sharing, or demonstrating specialized knowledge or skills, or participating in organized people-to-people programs.

The "Q" international cultural exchange program is for the purpose of providing practical training and employment, and the sharing of the history, culture, and traditions of the participant's home country in the United States.