Seminary regulations for duration of program described above apply to all Ph. D. students. Due to U.S. government regulations, the duration of visas for foreign national students may in some cases be shorter than the time needed to complete the dissertation. Even if a student must depart from the U.S., dissertation research and writing may continue provided the student remains in good academic standing.
What's the difference in meaning between "foreign students" and "foreign national students"?
Thank you very much for your reply.
Nothing that I can ascertain. Just bureaucrats making sure that it is totally clear that these students are foreign nationals.