During the five-year period between January 1, 2011 and December 31, 2015, a total of 233 substantive calls were made to the NHTRC hotline concerning the human trafficking of J-1 visas-holders. Substantive calls exclude hang-ups, wrong numbers, declined calls, missed calls, and calls in which the NHTRC could not determine the caller’s reason for calling. J-1 visas are temporary visas for individuals to participate in work-and study-based exchange visitor programs. Workers on J-1 visas are temporarily authorized to work in the United States in a variety of professions including as camp counselors, au pairs, interns, researchers, students, and can also serve as government visitors and summer work travel participants. The following information is based on these 233 calls.