On May 29, President Trump issued a proclamation that bans the entry of certain Chinese students and researchers coming in F or J visa categories. Any nonimmigrant in these categories who are in any way related to China's "military-civil fusion strategy." The bar exempts undergraduate students coming for study, and so will impact graduate students and post-doctoral researchers. An except is below:
The entry into the United States as a nonimmigrant of any national of the PRC seeking to enter the United States pursuant to an F or J visa to study or conduct research in the United States, except for a student seeking to pursue undergraduate study, and who either receives funding from or who currently is employed by, studies at, or conducts research at or on behalf of, or has been employed by, studied at, or conducted research at or on behalf of, an entity in the PRC that implements or supports the PRC’s “military-civil fusion strategy” is hereby suspended and limited subject to section 2 of this proclamation. For the purposes of this proclamation, the term “military-civil fusion strategy” means actions by or at the behest of the PRC to acquire and divert foreign technologies, specifically critical and emerging technologies, to incorporate into and advance the PRC’s military capabilities.
This proclamation takes effect at 12:00 pm eastern daylight time on June 1, 2020. This bar refers to entry only, and not to such visa-holders already in the U.S. The duty of determining these bars will fall upon the U.S. Department of State, likely through the review of visa applications. No end date is given, but the proclamation will be reviewed 60 days after the effective date.