When an international student or exchange visitor enters the United States, one of the most important documents they receive is the Form I-94, the Arrival/Departure Record. For most non-immigrants, the "Admit Until Date" field on this record shows a specific calendar date—the day by which they must depart the country. However, for many in the F-1, J-1, and I visa categories, this field displays a cryptic notation: "D/S."

Understanding this notation is not merely an academic exercise; it is the foundation of a legal stay in the United States. Furthermore, the landscape of U.S. immigration is currently undergoing a seismic shift, with a final rule scheduled to eliminate the D/S designation for millions of people starting in 2026.

The Immediate Answer: What Does D/S Stand For?

The notation D/S stands for Duration of Status.

If your I-94 shows "D/S" instead of a specific date, it means you are authorized to remain in the United States for as long as you continue to maintain the lawful non-immigrant status for which you were admitted. Unlike a tourist or a temporary worker who is given a hard exit date, your legal stay is tied to your active participation in your approved program, whether that is a university degree, a research fellowship, or a media assignment.

Under the current system, as long as you are making "normal progress" toward your program goals and complying with all visa regulations, your I-94 remains valid. There is no need to apply for a formal extension of stay with U.S. Citizenship and Immigration Services (USCIS) simply because the calendar year has changed, provided your underlying immigration documents (like Form I-20 or DS-2019) are kept current by your sponsoring institution.

The Mechanics of Duration of Status

To truly appreciate the value—and the risks—of a D/S admission, one must understand how it differs from a fixed-date admission.

Visa vs. I-94: The Crucial Distinction

A common misconception among international travelers is that the expiration date on the visa sticker in their passport determines how long they can stay in the U.S. This is incorrect. The visa is solely an entry document; it allows you to travel to a U.S. port of entry and ask for permission to enter.

The I-94 record, and the "Admit Until Date" within it, is the official record of your authorized stay once you are inside the country. If you have a five-year F-1 visa that expires tomorrow, but your I-94 says "D/S" and you are halfway through a PhD program, you are legally present. Conversely, if your visa is valid for four more years but you drop out of school, your "D/S" authorization ends immediately, regardless of the visa sticker.

Who Receives D/S?

Currently, Duration of Status is reserved for specific categories where the length of the stay is variable and often dictated by academic or professional milestones rather than a set timeframe:

  • F-1 Students: Academic students enrolled in colleges, universities, seminaries, or language training programs.
  • J-1 Exchange Visitors: Participants in work-and-study-based exchange visitor programs, including scholars, professors, and interns.
  • I Visa Holders: Representatives of foreign information media (journalists, film crews, etc.).
  • Dependents: F-2 and J-2 spouses and children also receive D/S, which is intrinsically linked to the status of the principal visa holder.

The Requirements for Maintaining D/S

The flexibility of D/S comes with a high level of responsibility. Because there is no "countdown clock" on your I-94, the burden is on the individual to ensure they are meeting the criteria that keep the "D/S" active.

1. Full Course of Study

For F-1 students, maintaining status requires being enrolled in a "full course of study" during every mandatory semester. Generally, this means at least 12 credit hours for undergraduates. Falling below this threshold without prior authorization from a Designated School Official (DSO) results in an immediate loss of status.

2. Normal Academic Progress

"Duration of Status" does not mean you can stay in school indefinitely. You must be making normal progress toward completing your degree. Repeatedly failing classes or taking an excessive number of leaves of absence can be flagged as a failure to maintain status.

3. Valid SEVIS Record and Documentation

Your legal stay is managed through the Student and Exchange Visitor Information System (SEVIS). Your Form I-20 (for F-1) or DS-2019 (for J-1) must always be valid. If the program end date on these forms passes and you have not graduated or sought an extension, your D/S authorization expires.

4. Employment Compliance

Unauthorized employment is the fastest way to void a D/S admission. F-1 and J-1 holders are strictly limited in where and when they can work (e.g., on-campus vs. CPT/OPT). Working even one hour outside of these authorizations technically ends your Duration of Status.

The 2026 Paradigm Shift: The Elimination of D/S

The most significant development regarding the "Admit Until Date: D/S" is its upcoming elimination. On July 17, 2026, the U.S. Department of Homeland Security (DHS) published a final rule that fundamentally changes how F and J non-immigrants are admitted to the United States.

The New Fixed-Date System

Starting September 15, 2026, the "D/S" designation will no longer be issued to new or re-entering F and J visa holders. Instead, travelers will be admitted until a fixed date.

According to the new regulations:

  • Most students and exchange visitors will be admitted for a period up to the program end date listed on their I-20 or DS-2019, but this period is capped at a maximum of four years.
  • Certain groups may face even shorter limits. For example, students in English language training programs may be limited to a 24-month period of admission.
  • Students at schools with high "overstay rates" or from countries designated as state sponsors of terrorism may be limited to a maximum of two years.

Why the Change?

DHS has stated that the transition from D/S to fixed dates is intended to improve program integrity and reduce overstays. Under the D/S system, the government relied heavily on schools and program sponsors to monitor participants. By implementing a fixed date on the I-94, the government creates a direct touchpoint where the individual must apply to USCIS for an extension, allowing the government to perform additional vetting and confirm the individual is still complying with the law.

What This Means for Current D/S Holders

If you are currently in the United States and your I-94 says "D/S," you are in a "transition period." The 2026 rule includes specific provisions for individuals who were admitted under the old system.

The November 14, 2030 Deadline

For those already in the U.S. under D/S when the rule takes effect on September 15, 2026, their "Duration of Status" will generally be considered valid until the program end date listed on their current I-20 or DS-2019, not to exceed November 14, 2030.

This means that even if your PhD program is scheduled to end in 2032, your D/S authorization effectively has a "hard stop" in late 2030. Before that date arrives, you will be required to file a Form I-539, Application to Extend/Change Nonimmigrant Status, with USCIS to secure a new fixed-date admission.

Re-Entry Under the New Rule

It is vital to note that the transition is also triggered by travel. If you are a current student with a D/S I-94 and you travel outside the U.S. after September 15, 2026, you will be admitted with a fixed date upon your return. You will not receive a D/S notation again. Your new I-94 will likely show an "Admit Until Date" corresponding to your I-20 end date (up to the 4-year cap).

The Process of Extending a Fixed-Date Admission

Under the new 2026 regime, the role of the USCIS extension process becomes central to the international student experience. This is a significant departure from the historical D/S framework where the school's DSO handled most extensions internally.

Filing Form I-539

If your fixed "Admit Until Date" is approaching and you have not yet finished your program, you must apply for an Extension of Stay (EOS).

  • When to file: You must file before your current I-94 expires. DHS recommends filing at least 45 to 60 days in advance.
  • Requirements: You will need to provide evidence that you have maintained status, have the financial means to continue your stay, and have a legitimate academic or professional reason for needing more time.
  • The "Automatic" Risk: Under the D/S system, "out of status" was often a nuanced determination. With fixed dates, if you remain in the U.S. one day past your I-94 date without a pending extension application, you are "out of status" automatically. This can trigger the accrual of unlawful presence, which leads to 3-year or 10-year bars on re-entering the United States.

Grace Periods: Current vs. Future

One of the most immediate practical changes involves the time allowed to prepare for departure after a program ends.

  • Under D/S (Current): F-1 students typically enjoy a 60-day grace period. J-1 exchange visitors typically have a 30-day grace period.
  • Under the New Rule (Post-Sept 2026): The grace period for F-1 students is being shortened. In many cases, it will be aligned with the 30-day standard used for J-1 visitors. This means you will have less time to pack, travel within the U.S., or transition to a new program or OPT after your "Admit Until Date" passes.

How to Verify and Correct Your I-94 Record

Regardless of whether the system is D/S or fixed-date, every non-immigrant should verify their I-94 record every time they enter the country. Errors are common, and a mistake by a Customs and Border Protection (CBP) officer can lead to significant legal headaches.

Steps to Check Your Record:

  1. Visit the official CBP I-94 website.
  2. Enter your passport details, name, and date of birth.
  3. View "Most Recent I-94."
  4. Confirm that the "Class of Admission" (e.g., F-1) and the "Admit Until Date" (e.g., D/S) are correct.

If You Find an Error:

If you are an F-1 student and your I-94 shows a specific date instead of "D/S" (prior to the 2026 effective date), you must contact your DSO immediately. They can often work with a CBP Deferred Inspection Site to have the record corrected. Leaving a "fixed date" error uncorrected can result in you being classified as an overstay even if you are still in school.

The Impact on Practical Training (OPT and STEM OPT)

Duration of Status has historically covered the period of Optional Practical Training (OPT) for F-1 students. Even when a student finishes their classes and begins working on an Employment Authorization Document (EAD), their I-94 continues to say "D/S."

Under the 2026 rule, this will also change. Students will be admitted for a fixed period that includes their authorized training period. If a student applies for a STEM OPT extension, they will also need to ensure their I-94 "Admit Until Date" is extended to cover the additional 24 months of work authorization. This creates a dual-track requirement: you must have both a valid EAD from USCIS and a valid "Admit Until Date" on your I-94.

Summary: Preparing for a World Without D/S

The "Admit Until Date: D/S" has been the bedrock of the American international education system since the early 1990s. It provided the flexibility necessary for complex academic journeys, from intensive English training to multi-year doctoral research.

However, the move toward fixed-date admissions signals a new era of heightened scrutiny. International visitors must transition from a mindset of "compliance through activity" (being in school) to "compliance through documentation" (tracking the I-94 date).

Key Takeaways for Travelers:

  • Current Meaning: D/S means your stay is valid as long as you maintain your program requirements.
  • Effective Date: September 15, 2026, is the day the D/S system begins to disappear.
  • Check the Date: Always verify your I-94 after every entry. If it doesn't say D/S (pre-2026) or matches your program end date (post-2026), seek professional advice.
  • The 4-Year Cap: Be prepared to file formal extensions (Form I-539) if your program exceeds four years.
  • Stay Informed: Policy changes regarding the Congressional Review Act could potentially delay or alter the 2026 rule, so maintaining close contact with your university's international office is essential.

Frequently Asked Questions (FAQ)

What happens if my passport expires but my I-94 says D/S?

While your I-94 D/S notation remains technically valid, U.S. regulations generally require you to maintain a valid passport at all times. If your passport expires, you should renew it immediately through your home country's embassy or consulate. You do not need a new visa sticker, but you must carry both the old passport (with the visa) and the new passport (valid) when you travel.

Can a DSO change my I-94 from a fixed date to D/S?

No. A DSO can update your SEVIS record and issue a new I-20, but they do not have the authority to change your I-94 record. Only CBP or USCIS can modify your I-94 "Admit Until Date."

Does the 2026 rule apply to M-1 vocational students?

No, the rule primarily targets F, J, and I visa holders. M-1 students have always been admitted for fixed periods (usually one year or the length of their program, whichever is shorter) and have never received D/S.

If I change from F-1 to H-1B, does D/S still matter?

Yes. To successfully change your status within the U.S., you must be in a valid period of stay at the time of filing. If your D/S has been terminated due to a status violation (like working without authorization), your petition to change to H-1B may be denied, or you may be required to leave the country and re-enter with a new visa.

Will the 2026 rule affect my ability to travel?

The rule does not change travel eligibility, but it changes the result of travel. After September 2026, any re-entry will replace your "D/S" with a fixed date, requiring more diligent tracking of your expiration dates upon your return to the U.S.