DHS has replaced duration of status admissions for F, J, and I nonimmigrants with fixed admission periods. F and J admissions are generally tied to the program end date and capped at four years. The change takes effect September 15, 2026, with transition provisions for people already maintaining D/S. If you are affected, pull your Form I-94 and compare it against your program dates, travel plans, and any extension you may need to file with USCIS.