Admission for Duration of Status
You have been admitted to the United States as an F-1 student for duration of status, noted as D/S on both your I- 94 arrival record and passport. Duration of Status means you may remain in the U.S. for the period in which you are pursuing a full course of study. If you are a full time student and properly maintain your F-1 status, it does not matter if your visa expires while you are in the United States.
I-94 Arrival/departure record
I-94 Arrival/departure record - is your Admission Number, your immigration status, your date of entry, and the length of time that your status is valid. A notation of D/S means that your F-1 is valid for duration of status or the time it will take to complete your degree program as a full-time F-1 student. It is important to keep this record all the time for obtaining any future immigration benefits including a Social Security Card, Drivers License or State ID, travel signature, or employment authorization. .
Obtaining I-94 (arrival/departure record)
The U.S. Customs and Border Protection (CBP) creates electronic I-94 records at all airports and seaports. You must after entering the United States. Once you accessed the record, review all information and ensure that it is correct. Print out your I-94 record and keep it with your other immigration documents. You will include your I-94 record as part of the mandatory online check-in. The electronic I-94 record will continue to be available to you while you remain in the United States. Once you depart the United States, your electronic I-94 record will no longer be available for you to view. Each time you re-enter the Unites States, a new electronic I-94 will be created.
If you are unable to access your I-94 record or if any of the information is incorrect, contact an ISS advisor.