What the End of Duration of Status Means for F-1 Cap-Gap & Work Authorization

This complete guide breaks down the Department of Homeland Security (DHS) Final Rule ending Duration of Status (D/S) for F-1, J-1, and I nonimmigrants. It outlines how transitioning from D/S to a fixed Admit Until Date Impacts F-1 Cap-Gap coverage, Optional Practical Training (OPT/STEM OPT), and Form I-9 employment authorization.

Critical Regulatory Timeline

Key Provisions of the Fixed Admission Framework

Starting September 15, 2026, nonimmigrant academic students (F-1 students) will no longer be admitted under “D/S”. U.S. Customs and Border Protection (CBP) will instead grant admission up to a fixed Admit Until Date (AUD):

• Admission Cap: Up to the program end date or OPT or STEM OPT period listed on Form I-20, not to exceed 4 years, plus a 30-day arrival and 30-day departure period.
• Extension of Stay (EOS): Students requiring additional time for academic programs or begin a new program, or engage in OPT, or STEM OPT must file Form I-539 with USCIS or depart the U.S. and re-enter with a new AUD.
• OPT Filing Extension Delay: USCIS has delayed the mandatory Form I-539 filing requirement for OPT/STEM OPT applicants until at least March 18, 2027. See new 8 CFR 214.1(m).

8 CFR 214.1(m) Transition Period Rules

F-1 students in the U.S. maintaining lawful status under D/S on September 15, 2026, are grandfathered under the transition provisions:

• Authorized Period of Stay: Students may remain in F-1 status until the later of their EAD expiration date or Form I-20 program end date (plus a 60-day grace period). However, their stay cannot exceed November 14, 2030. Students in D/S on the effective date of the rule will only need to “apply for EOS if their program exceeds the end date on their DS–2019 or I–20, or 4 years after the effective date of the rule, whichever comes first
• Pending EAD Applications: Students with pending OPT/STEM OPT EAD applications on September 15, 2026, remain covered through their program end date or approved EAD period. If EAD is denied denied, lawful stay continues through the I-20 end date plus a 60-day grace period, provided they pursue full-time study.
• International Travel Disqualification: F-1 students who depart the U.S. on or after September 15, 2026, forfeit transition protection. Upon re-entry, CBP issues a fixed AUD on Form I-94 and they become subject to the new rule.
• Exclusions: The transition period does not apply to students out of status or physically outside the U.S. on September 15, 2026.

Understanding H-1B Cap-Gap Extensions

“Cap-gap” occurs when an F-1 student’s status or OPT work authorization expires before their cap-subject H-1B petition takes effect on October 1. Under the H-1B Modernization Rule, a timely filed cap-subject H-1B petition requesting a change of status automatically extends F-1 status and employment authorization through April 1 of the relevant fiscal year (or the H-1B effective date, whichever is earlier).

1. F-1 Status Extension Only (Without OPT)

Applies if the student is in valid F-1 status at filing for H-1B change of status petition but lacks active OPT/STEM OPT. The timely filed H-1B petition extends lawful stay only; no work authorization is granted prior to H-1B approval and start date.

2. F-1 Status + OPT/STEM OPT Extension

Applies if the student is in valid F-1 status and actively participating in post-completion OPT or STEM OPT when the H-1B change of status petition is filed (before the expiration date of the EAD). Automatically extends both F-1 status and OPT employment authorization up to April 1 of the following year or H-1B approval, whichever is earlier.

Form I-9 Compliance & Cap-Gap Work Verification

Employers must verify cap-gap extensions in accordance with USCIS Form I-9 requirements and Handbook for Employers (M-274):

Timely Filing Requirements

• D/S Transition Rules: H-1B petition filed while F-1 status was valid and before EAD expiration.
• New Fixed-Admission Rules: H-1B petition filed prior to the Form I-20 program end date (up to 4 years) plus the 60-day grace period, or the EAD expiration date, whichever is later.

The employee’s expired EAD in combination with Form I-797C, Notice of Action for the change of status petition to H-1B is considered to be the same as an unexpired EAD under Form I-9 List A.

USCIS terminates this automatic extension if it rejects, denies, revokes, or withdraws the H-1B petition.

Form I-9 Reverification (Supplement B)

• If an employee’s EAD automatic extension expires on March 31, the employer must reverify their employment authorization in Supplement B, Reverification and Rehire on or before March 31 of the relevant year.
• Upon receiving the approved Form I-797 with attached Form I-94, update Supplement B with the Form I-94 title, number, and new expiration date.
• E-Verify: Employers can create/update E-Verify cases using the Cap-Gap documentation recorded on Form I-9.

Practical Impact of Fixed Admission on Cap-Gap

The new rule does not modify or remove the existing automatic extension of stay and employment authorization for eligible cap-gap
beneficiaries.

While DHS explicitly confirmed in the Final Rule preamble that automatic cap-gap extensions remain intact, fixed admission dates (AUD) introduce key operational updates:

1. Fixed Expiration Dates: Cap-gap analysis must align with and AUD and Form I-94 expiration dates (AUD).
2. Implementation Guidance: Employers and DSOs should monitor upcoming USCIS and SEVP implementation guidelines to ensure compliance with fixed-period I-94 records and Form I-539 extension interactions.

Why Partner with Our Immigration Lawyers

Navigating the transition from Duration of Status to fixed Admit Until Dates introduces complex regulatory hurdles for higher education institutions, international students, and corporate employers alike.

Our experienced immigration team provides strategic counsel to ensure continuous work authorization, timely Form I-539 filings, and complete Form I-9 compliance across all Cap-Gap scenarios.

Whether you need assistance auditing employee work authorization records, managing H-1B Cap-Gap petitions, or structuring long-term visa strategies under the new fixed-admission framework, we provide the proactive, tailored guidance necessary to mitigate risk and protect lawful status.

If you are an employer, seeking to sponsor your employee’s H-1B visa, contact our H1B visa lawyers in Miami, Florida USA to schedule an appointment. We discuss the H-1B visa and other alternative visa options available for you aside from H-1B.

To learn more, visit H1B Visa Transfer, 2025 H-1B Modernization Rule, Travel during H1B Visa Transfer to New Employer and F1 to H1B Cap-Gap Transition Checklist.

Partnering with our firm ensures that your organization stays ahead of evolving USCIS and DHS implementation rules with confidence.

We serve companies and individuals across all 50 states, the District of Columbia and Puerto Rico.

Contact us or schedule a consultation.

Malescu Law P.A. – Business & Immigration Lawyers