Harvard University has advised international students to plan travel and return to the United States before September 15, when new Department of Homeland Security regulations governing F-1 and J-1 visa holders are set to be implemented.

Harvard University has recommended that its international students and scholars prioritize returning to the United States before September 15, when the Department of Homeland Security plans to implement significant changes to visa regulations affecting F-1 and J-1 visa holders. The university's guidance reflects concerns about how the new rules could impact students' ability to remain in the country and complete their studies.

The proposed changes will fundamentally alter how long international students can stay in the United States. Under the current system, eligible students can remain for the "duration of status," meaning they may stay as long as they maintain their academic programme requirements and immigration compliance. The new regulations would replace this flexible arrangement with a fixed end date, recorded as an "Admit Until Date" on Form I-94, which would specify the exact period of authorized stay.

The timing of a student's presence in the country when the rules take effect will determine which system applies to them. Students already in the United States and maintaining valid visa status on September 15 may be covered under transition provisions allowing them to continue under current rules. However, those who travel abroad and return on or after that date would be subject to the new fixed-date system, potentially facing a different admission process.

The regulatory shift could have broader implications for international student experiences, affecting grace periods, programme changes, university transfers, and requests for additional time to complete studies. Students seeking to extend their stay may now need to follow formal extension procedures rather than relying on duration-of-status flexibility. The policy is currently facing legal challenges from higher education and labour organizations, though the changes remain set to proceed unless courts or the government intervene.