The Exchange Visitor Program is administered by the U.S. Department of State (DOS). Its purpose is "to promote international educational and cultural exchange to develop mutual understanding between the people of the United States and other countries".
There are many categories of exchange visitors: professors, research scholars, specialists, students, short-term scholars, interns, etc. All exchange visitors are issued a Form DS-2019, by their program sponsor, so that they can apply for a J-1 Exchange Visitor Visa at a U.S. Consulate or Embassy in his/her home country.
On entry to the U.S., the foreign national presents a valid foreign passport, containing the J-1 visa stamp, and the DS-2019 to an Immigration Officer. The officer will examine the documents and may ask specific questions related to the program. If satisfied, the officer will admit the foreign national to the U.S. in J-1 status and stamp the foreign passport (generating an I-94 record).
To determine if a particular J-1 exchange visitor is eligible to be employed or compensated by UNH, please contact the OISS.
Click here for a more detailed description about the Form DS-2019.