The Trump administration finalizes changes to U.S. student visa rules that would cap authorized stays at four years, ending a long-standing policy that allowed student visas to remain valid for the duration of a program of study. The U.S. Department of Homeland Security says students who need to stay longer than four years would have to seek federal permission through an extension process, rather than relying on “duration of status.” The changes are expected to take effect September 15.

The updated policy would also affect students’ post-graduation work authorization under optional practical training, which allows employment after finishing studies; reporting indicates the period would be reduced to two years from three. In addition, the government would shorten the time students have to change schools, leave the country, or change immigration status after graduation to 30 days from 60.

Supporters of the rule argue it is intended to prevent misuse of the visa system, while other reporting notes the restrictions may affect enrollment and complicate pathways for students with longer degree timelines, such as many Ph.D. programs. The changes also shift more control to federal authorities by removing universities’ authority to extend visas.