The H-3 classification is available to aliens coming to the U.S. as trainees in virtually any field of endeavor. There are many restrictions. The training must not be available in the alien’s own country. The alien can only engage in productive employment if incidental and necessary to the training. The training must benefit the alien’s career outside the U.S. There are substantial documentary requirements. H-3 classification can last for a maximum of two years.
H-3 training programs are often most valuable to larger institutions that can afford to maintain well-regimented and documented training programs, with regular evaluations, and that can use the trainees in performances as part of their training.