The U.S. Department of Homeland Security (DHS) has finalized a major change to how F-1 international students are admitted and maintain their status in the United States. Beginning September 15, 2026, the government will end the long-standing Duration of Status (D/S) admission framework for F-1 students and replace it with a fixed period of admission.

This change will affect how F-1 students maintain status, apply for extensions of stay, obtain Optional Practical Training (OPT), and navigate the H-1B cap-gap period.

While the new rule does not eliminate the existing cap-gap extension, it creates important questions about how cap-gap protections will interact with fixed admission periods, Form I-94 expiration dates, and the new extension-of-stay requirements.

Key Dates

Date	What It Means
July 17, 2026	DHS published the final rule ending Duration of Status (D/S) for F, J, and I nonimmigrants.
September 15, 2026	The final rule takes effect. F-1 students will generally be admitted for a fixed period rather than D/S.
March 19, 2027	Earliest date on which certain F-1 students may need to file Form I-539 together with Form I-765 for OPT or STEM OPT, subject to any further DHS delay.
November 14, 2030	Latest possible date for the F-1 transition provisions, based on the four-year maximum period plus the 60-day grace period.
October 1	Earliest employment start date for cap-subject H-1B petitions in each fiscal year.
April 1	Outer limit for the automatic cap-gap extension of F-1 status and, when applicable, OPT/STEM OPT employment authorization under the current framework.

What Is Changing for F-1 Students?

Under the current system, most F-1 students are admitted for Duration of Status, meaning their authorized stay is generally tied to maintaining valid F-1 status rather than a specific expiration date on their Form I-94.

Starting September 15, 2026, F-1 students will instead be admitted for a fixed period, commonly reflected by an Admit Until Date (AUD) on the Form I-94.

The fixed admission period will generally be based on the student’s program of study or authorized OPT period listed on the Form I-20. The admission period cannot exceed four years and includes additional periods for arrival and departure.

Students who need additional time to:

• Complete their current academic program;
• Begin a new program;
• Participate in post-completion OPT; or
• Participate in STEM OPT,

may need to file Form I-539, Application to Extend/Change Nonimmigrant Status, with U.S. Citizenship and Immigration Services (USCIS), unless they qualify for a transition or implementation provision that delays this requirement.

Students may also choose to leave the United States and seek a new period of admission when they return.

Transition Rules for Current F-1 Students

The final rule includes transition provisions intended to protect certain F-1 students who are already in the United States when the new system takes effect.

Generally, an F-1 student may qualify for the transition period if the student:

1. Was admitted to the United States in F-1 status under D/S before September 15, 2026; and
2. Is maintaining valid F-1 status on September 15, 2026.

Eligible students may generally remain in F-1 status until the later of:

• The expiration date of their EAD; or
• The program end date listed on their Form I-20,

subject to the applicable transition limits.

These students may also receive a 60-day grace period. However, the transition period cannot extend beyond November 14, 2030.

Students With Pending OPT or STEM OPT Applications

F-1 students who have a pending OPT or STEM OPT-based EAD application on September 15, 2026, may also qualify for transition protections.

If the EAD application is approved, the transition period can generally continue through the applicable program or EAD end date.

If the EAD application is denied, the student may remain in authorized stay if they continue to meet the requirements for F-1 status and pursue a full course of study through the applicable program end date, followed by the applicable grace period.

International Travel Can Affect Transition Benefits

An important consideration is international travel.

F-1 students who leave the United States after the final rule becomes effective may no longer be covered by the transition provisions when they return. They may instead be admitted under the new fixed-period system and receive an I-94 containing an Admit Until Date.

Similarly, students who are already outside the United States on September 15, 2026, generally will not receive the transition protections.

Students who are not maintaining valid F-1 status on the effective date also will not qualify for the transition period and may need to seek reinstatement or depart the United States.

Understanding the F-1 Cap-Gap

The cap-gap period is the period between the expiration of an F-1 student’s authorized F-1 status or OPT/STEM OPT and the beginning of employment under a cap-subject H-1B petition.

The issue arises because the earliest employment start date for a cap-subject H-1B petition is generally October 1, the beginning of the federal fiscal year.

For example, an F-1 student’s OPT may expire several months before October 1. Without cap-gap protection, the student could face a gap between the end of OPT and the start of H-1B employment.

The cap-gap provision is designed to bridge this period.

Under the current H-1B framework, an eligible F-1 student with a timely filed cap-subject H-1B change-of-status petition can receive an automatic extension of F-1 status and, where applicable, employment authorization.

The extension generally lasts until the earlier of:

• April 1 of the relevant fiscal year; or
• The effective date of the approved H-1B petition.

Two Types of Cap-Gap Extensions

1. Cap-Gap Extension of F-1 Status Only

If an F-1 student is maintaining F-1 status when an eligible H-1B change-of-status petition is filed but is not currently working under OPT or STEM OPT, the student may receive an automatic extension of F-1 status.

However, the student does not receive employment authorization through cap-gap merely because the F-1 status is extended.

Employment generally cannot begin until the H-1B change of status becomes effective.

2. Cap-Gap Extension of F-1 Status and OPT/STEM OPT

An F-1 student who is in valid OPT or STEM OPT when an eligible H-1B change-of-status petition is timely filed may receive an automatic extension of both:

• F-1 status; and
• OPT/STEM OPT employment authorization.

The student may generally continue working under the cap-gap extension until the earlier of April 1 of the relevant fiscal year or the effective date of the approved H-1B petition.

When Is an H-1B Petition Considered Timely?

The end of D/S changes how employers and students determine whether an H-1B petition was filed during the student’s authorized period.

Under the D/S framework, a qualifying H-1B change-of-status petition generally needed to be properly filed while the student’s F-1 D/S admission remained valid and before the EAD expired.

Under the new fixed-period system, the relevant timing will generally be tied to the student’s:

• Form I-20 program end date;
• Applicable grace period; and
• EAD expiration date.

For transition-period students, the applicable filing window generally extends through the later of the relevant I-20 program end date plus the applicable grace period or the EAD expiration date.

Because implementation of the new rule involves several overlapping dates, students and employers should carefully review the student’s Form I-20, EAD, Form I-94, and H-1B filing details.

Documenting Cap-Gap Work Authorization

Eligible F-1 students may use the required documentation to establish employment authorization for Form I-9 purposes.

Generally, the employer should have documentation showing that:

• A qualifying cap-subject H-1B change-of-status petition was timely filed;
• The petition requests an appropriate H-1B employment start date; and
• The student qualifies for the automatic cap-gap extension.

For eligible employees, an expired EAD together with the appropriate Form I-797C, Notice of Action, can serve as evidence of the automatic extension of employment authorization.

For Form I-9 purposes, employers should follow the applicable USCIS and Handbook for Employers guidance in effect at the time of verification.

Employers should also monitor USCIS updates after September 15, 2026, because additional implementation guidance may clarify how the new fixed-period admission system affects cap-gap documentation.

What Happens If the H-1B Petition Is Denied?

The cap-gap extension is not permanent.

The automatic extension ends if the H-1B petition is:

• Denied
• Rejected
• Revoked
• Withdrawn

The consequences may depend on when the denial occurs and whether the student is still within an applicable grace period.

A student may have a period of authorized stay after the end of employment authorization, but work authorization does not automatically continue during the grace period.

If the H-1B petition is denied after the applicable grace period has ended, the student may need to depart the United States unless another valid immigration option applies.

Cap-Gap and the New Fixed Admission Period

DHS has stated that the final rule does not eliminate the existing automatic cap-gap extension of F-1 status and employment authorization for eligible students.

However, the transition from D/S to fixed admission periods creates questions regarding the relationship between:

• The Admit Until Date on Form I-94;
• The Form I-20 program end date;
• EAD expiration;
• The applicable grace period;
• Form I-539 extension requirements; and
• Cap-gap extensions.

Additional USCIS and Student and Exchange Visitor Program (SEVP) guidance will be important in determining how these provisions operate together after September 15, 2026.

Examples of How the New Rules May Apply

Scenario 1: F-1 Student Covered by the Transition Rules

An F-1 student’s program ends on May 25, 2026, and the student properly maintains F-1 status. The student applies for OPT before completing the program.

The student’s OPT EAD is approved through June 15, 2027.

In April 2027, before the EAD expires, the employer files a qualifying H-1B change-of-status petition requesting an October 1, 2027 start date.

If the student remains in the United States and otherwise qualifies for cap-gap, the student’s F-1 status and employment authorization may be automatically extended under the cap-gap provisions.

However, international travel while the H-1B change-of-status petition is pending can create significant complications and may prevent the student from relying on the change-of-status portion of the petition.

Scenario 2: OPT Application Pending on September 15, 2026

An F-1 student’s academic program ends on May 25, 2026, and the student remains eligible for the transition provisions.

The student filed an OPT application on May 15, 2026, but the application remains pending when the new rule takes effect.

The OPT application is subsequently approved, with an EAD expiring on June 15, 2027.

If a qualifying H-1B change-of-status petition is filed before the EAD expires and the student otherwise satisfies the cap-gap requirements, the student may receive the applicable automatic cap-gap extension.

Scenario 3: H-1B Petition Is Denied During the Grace Period

Assume the same circumstances as Scenario 2, but the H-1B petition is denied after the OPT EAD expires while the student remains within the applicable grace period.

The cap-gap benefit ends when the H-1B petition is denied.

The student may remain in a period of authorized stay for the remainder of the applicable grace period, assuming no other issue affects the student’s status.

However, the student is not authorized to continue working merely because the grace period remains available.

The student may need to consider whether another extension or change-of-status option is available.

Scenario 4: H-1B Denial After the Grace Period

If the H-1B petition is denied after the applicable grace period has already ended, the student’s period of authorized stay may end with the denial.

The student may then need to depart the United States immediately, unless another lawful immigration option applies.

Scenario 5: Student Reaches the End of the Transition Period

An F-1 student graduates in August 2029 and applies for OPT.

Because this occurs after the temporary period during which an I-539 may not be required, the student may need to file an I-539 extension-of-stay application together with the OPT application, unless DHS further extends the implementation deadline.

If the OPT EAD and extension are approved through September 16, 2030, and a qualifying H-1B change-of-status petition is later filed with an October 1 or later start date, the cap-gap provision may bridge the period between the end of OPT and the H-1B start date.

Post-Transition Scenarios

F-1 Student Admitted Before September 15, 2026

An F-1 student admitted under D/S before September 15, 2026, remains in the United States and does not travel internationally.

The student’s program ends on May 1, 2029, and the student applies for OPT together with the required extension-of-stay filing.

If the OPT and extension are approved through April 30, 2030, and an eligible H-1B change-of-status petition is filed before the applicable expiration date, cap-gap may extend F-1 status and employment authorization through the applicable cap-gap end date.

If USCIS approves the H-1B change of status, the student receives the applicable H-1B admission documentation.

If USCIS denies the H-1B petition, the student’s ability to remain in the United States will depend on the applicable grace period and other circumstances.

F-1 Student Admitted on or After September 15, 2026

An F-1 student admitted after the effective date will enter the United States under the new fixed-period admission system.

For example, the student may receive an Admit Until Date based on the program end date listed on the Form I-20.

When the student later applies for OPT, an I-539 extension-of-stay application may be required under the new framework.

If the student maintains valid status, obtains OPT employment authorization, and later has a qualifying H-1B change-of-status petition filed before the applicable expiration date, cap-gap protection may apply.

H-1B Denial After the New Rule Takes Effect

If the H-1B petition is denied while the student is receiving cap-gap protection, the cap-gap benefit ends upon denial.

For a student subject to the new fixed-period admission system, the applicable grace period may be 30 days, depending on the student’s circumstances and admission framework.

During the grace period, the student may potentially seek another extension or change of status, but cannot continue working solely on the basis of the expired OPT EAD.

If the denial occurs after the applicable grace period has expired, the student may need to depart the United States.

What F-1 Students and Employers Should Do

The end of D/S represents a significant change in the way F-1 status is administered.

F-1 students should carefully track:

• Form I-20 program end dates;
• Form I-94 Admit Until Dates;
• EAD expiration dates;
• OPT and STEM OPT filing deadlines;
• Form I-539 requirements;
• H-1B filing dates;
• H-1B requested start dates; and
• Applicable grace periods.

Students planning to transition from F-1 status to H-1B status should also be especially cautious about international travel while an H-1B change-of-status petition is pending.

Employers should ensure that Form I-9 procedures are completed and updated using the most current USCIS guidance and should monitor future government guidance concerning cap-gap extensions under the fixed-period admission system.

Conclusion

The elimination of Duration of Status will fundamentally change how F-1 students manage their immigration status in the United States. However, the final rule does not eliminate cap-gap protection for eligible F-1 students.

The biggest practical change is the move from D/S admission to a fixed admission period, along with the potential need for Form I-539 filings when students require additional time to remain in the United States.

For F-1 students approaching graduation, applying for OPT, or planning an H-1B transition, careful attention to I-20 dates, EAD validity, I-94 admission dates, H-1B filing timing, travel, and grace periods will be increasingly important.

Because USCIS and SEVP may issue additional implementation guidance, students and employers should review the latest official requirements before making immigration, employment, or travel decisions.