Duration of Status (D/S)
On the passport admission stamp or the paper I-94 card, the inspector writes either a date or “D/S” (duration of status). Students and scholars on F or J status should receive a stamp marked “D/S” or “duration of status.” This means that they may remain in the United States as long as they are properly maintaining status and their I-20 (F-1) or DS-2019 (J-1) has not expired. Students and scholars are required to keep the passport entry stamp or I-94 card for the duration of their visit. Make sure to keep it in a safe place so it doesn’t get lost.