STEM OPT Under DHS’s Final Rule, Part III. Form I-539, the 180-Day EAD Extension, Form I-983 Compliance, and International Travel

The Department of Homeland Security’s Final Rule does not eliminate the 24-month STEM OPT extension. It also preserves the existing rule that automatically extends a qualifying student’s post-completion OPT Employment Authorization Document for up to 180 days while a timely STEM OPT application remains pending.

The Final Rule does, however, add a separate immigration requirement for most students who seek STEM OPT under the new fixed-admission system. After the temporary transition period ends, a student who remains inside the United States ordinarily must file:

Form I-765 to request the 24-month STEM OPT employment authorization; and
Form I-539 to request an additional fixed period of F-1 admission.

DHS recommends concurrent filing and states that USCIS will adjudicate related Form I-765 and Form I-539 applications together. The student may instead travel abroad and seek a new period of admission from U.S. Customs and Border Protection, but international travel presents separate documentary, timing, and adjudicatory risks.

The Final Rule also replaces the ordinary 60-day post-OPT period with a 30-day period for students governed by the permanent fixed-admission system. Limited transition cases retain 60 days.

The Chicago immigration lawyers of Zneimer & Zneimer P.C. are studying the Final Rule and explaining its requirements throughout this series. This article addresses the provisions unique to STEM OPT, including filing deadlines, the 180-day EAD extension, Form I-983 obligations, reporting requirements, unemployment limits, travel, and transition relief.

What the Final Rule Changes, and What It Leaves in Place

The Final Rule preserves the fundamental structure of STEM OPT. A qualifying F-1 student may still seek a 24-month extension of post-completion OPT. DHS also expressly preserved the existing automatic EAD extension for a student who timely files the STEM OPT application before the current post-completion OPT EAD expires.

The Final Rule changes the student’s period of admission. Under the former Duration of Status system, an approved STEM OPT application generally allowed the student to continue in F-1 status without a separate application to extend the period of admission. Under the new system, employment authorization and lawful admission require separate analysis.

DHS explains the sequence as follows:

The student first receives post-completion OPT and an admission period through the OPT EAD end date.
If the student qualifies for STEM OPT, the student files another employment authorization application and another extension-of-stay application.
If USCIS approves both applications, the new admission period runs through the STEM OPT EAD end date, followed by 30 days.

The Final Rule therefore adds an immigration filing layer without changing the underlying 24-month STEM OPT benefit.

The Four-Year Limit Does Not Create Four Years of STEM OPT

The Final Rule permits USCIS to grant an F-1 extension of stay for the time required to complete an approved program or requested practical training, subject to a maximum of four years. The additional 30-day period does not count against that four-year ceiling.

That four-year ceiling does not enlarge STEM OPT. STEM OPT remains limited to 24 months for each qualifying extension. A student may not convert the four-year extension-of-stay ceiling into four years of STEM employment authorization. Instead, the approved period of admission normally corresponds to the STEM OPT authorization shown on the EAD, followed by the 30-day period provided by the Final Rule.

For example, if USCIS approves a STEM OPT EAD from July 1, 2028, through June 30, 2030, the new fixed period of F-1 admission should extend through that EAD end date, plus 30 days. The four-year rule functions as an outer limit on an extension of stay, not as the duration of STEM OPT itself.

Most Students Will File Two Applications

A student governed by the permanent fixed-admission framework will generally need two separate applications:

Application	Purpose
Form I-765	Requests STEM OPT employment authorization and a new EAD
Form I-539	Requests the additional fixed period of F-1 admission needed for STEM OPT

DHS rejected requests to combine the two benefits into one form. It instead recommends filing the two applications concurrently. DHS states that USCIS will identify related cases and adjudicate them together, although the student must still submit separate forms and fees.

The student should work with the Designated School Official to obtain a properly endorsed Form I-20 reflecting the STEM OPT recommendation and proposed employment end date. The Form I-539 filing may also require evidence of sufficient funds, proof that the student maintained status, any biometrics that USCIS requires, and evidence that the student did not engage in unauthorized employment.

A student with F-2 dependents should include the dependents in the extension strategy. Each dependent must receive an extension that does not exceed the principal student’s period, and the family may need to provide updated Forms I-20, relationship evidence, financial evidence, biometrics, and filing fees.

STEM OPT Filing Deadlines

The Final Rule does not change the central filing deadlines for the 24-month STEM OPT extension. A student may file Form I-765:

up to 90 days before the current post-completion OPT EAD expires;
only after the DSO enters the STEM OPT recommendation in SEVIS;
within 60 days after the DSO enters that recommendation; and
before the current post-completion OPT EAD expires.

A student must submit a properly completed and signed Form I-983 to the DSO before the DSO may recommend STEM OPT in SEVIS.

The new Form I-539 requirement adds another deadline. USCIS must receive a timely extension-of-stay application no later than the expiration of the student’s authorized admission period. The Final Rule technically permits USCIS to receive the Form I-539 during the 30-day period, but a filing made during that period does not allow the student to continue or begin practical training while the extension remains pending.

As a practical matter, a fixed-admission student seeking STEM OPT should prepare and file Form I-765 and Form I-539 concurrently, before the current post-completion OPT EAD and applicable period of admission expire.

Key STEM OPT Deadlines

Requirement	Deadline or duration	Consequence
STEM OPT period	24 months	Begins the day after post-completion OPT ends
Earliest Form I-765 filing	90 days before current OPT EAD expiration	Student cannot file earlier
DSO recommendation validity	USCIS must receive Form I-765 within 60 days after the recommendation enters SEVIS	A late filing may result in denial
Latest Form I-765 filing	Before current OPT EAD expires	Required for STEM eligibility and the 180-day EAD extension
Form I-539	Before the authorized admission period expires	Needed under the permanent fixed-admission system unless the student uses travel and readmission or qualifies for transition relief
Automatic EAD extension	Up to 180 days, or until USCIS issues a written decision, whichever occurs first	Allows qualifying employment to continue while Form I-765 remains pending
STEM validation reports	At 6, 12, 18, and 24 months	Student confirms address, employer, and employment information
Student change reporting	Within 10 days	Applies to name, address, employer information, and loss of employment
Employer termination reporting	Within 5 business days	Employer reports early termination or departure to the DSO
First Form I-983 evaluation	At 12 months	Student and employer complete and sign the evaluation
Final Form I-983 evaluation	At the end of the training opportunity	Due to the DSO within 10 days after the reporting period or training ends
Total unemployment limit	150 aggregate days across post-completion OPT and STEM OPT	Exceeding the limit may violate F-1 status
Period after STEM OPT under permanent rule	30 days	Student may depart or take timely action to maintain lawful status
Temporary no-I-539 transition deadline	March 18, 2027	Certain qualifying transition students need only file Form I-765

The underlying STEM OPT reporting and employer requirements remain governed by 8 C.F.R. § 214.2(f)(10) through (12). The Final Rule changes the admission and extension framework around those requirements.

The 180-Day Automatic EAD Extension Remains

A qualifying student who timely files Form I-765 for STEM OPT receives an automatic extension of the current post-completion OPT EAD. The extension begins when the existing EAD expires and continues until USCIS issues a written decision, but it cannot exceed 180 days.

This protection bridges the period between the expiration of the post-completion OPT EAD and USCIS’s decision on the STEM OPT application. It does not add 180 days to the eventual 24-month STEM OPT period. If USCIS approves the application, the 24-month period begins on the day after the original post-completion OPT EAD expired, regardless of the date on which USCIS approved the application.

The Final Rule expressly recognizes that a student may need both the 180-day EAD extension and a pending extension of stay. DHS states that, when an extension of stay is required, the student remains in a period of authorized stay if the student timely files Form I-539, while the unchanged 180-day employment rule continues to operate from the EAD expiration date.

This means the student must protect two separate interests:

Employment authorization, through the timely STEM OPT Form I-765; and
Continued F-1 admission, through the timely Form I-539 or admission by CBP after travel.

A pending Form I-539 alone does not create STEM employment authorization. A pending Form I-765 alone may not supply the necessary fixed period of F-1 admission.

Do Not Wait for the 30-Day Period to File Form I-539

The Final Rule permits a student to file an extension request during the 30-day period following the relevant program or practical training end date. However, if USCIS receives the Form I-539 during that 30-day period, the student may not continue or begin practical training or other employment while the application remains pending.

A student who seeks the 180-day STEM OPT work extension should therefore avoid waiting until the post-completion OPT EAD expires before addressing the Form I-539 requirement.

The safer sequence is:

Complete Form I-983 with the employer.
Obtain the DSO’s STEM OPT recommendation.
File Form I-765 within the permitted 90-day window and within 60 days of the DSO recommendation.
File Form I-539 concurrently and before the current authorized period expires.
Preserve proof of receipt for both applications.

How Employers Complete Form I-9 During the 180-Day Extension

For Form I-9 purposes, an employer may accept the expired post-completion OPT EAD together with a Form I-20 endorsed by the DSO for the STEM OPT extension, provided the student timely filed Form I-765 and the application remains pending.

USCIS instructs employers to treat the combination as evidence of continued employment authorization for up to 180 days. If the student changes employers, the Form I-20 should reflect the new employer’s information.

The employer should separately recognize that Form I-9 documentation addresses employment authorization. It does not resolve whether the student timely filed the required Form I-539 under the fixed-admission system.

Form I-983 Remains Central to STEM OPT

The Final Rule does not replace or reduce the Form I-983 requirements. Before a DSO may recommend STEM OPT, the student must complete an individualized Form I-983 with the prospective employer and obtain the required signatures. (eCFR)

The training plan must explain:

the student’s training goals;
the knowledge, skills, or techniques the employer will provide;
how the employer will supervise and evaluate the student;
how the employment directly relates to the qualifying STEM degree; and
how the employer will provide a structured, guided learning experience.

The employer must participate in E-Verify, possess a valid employer identification number, provide at least 20 hours of qualifying employment per week, and offer duties, hours, and compensation commensurate with those provided to similarly situated U.S. workers.

An employer must not use a STEM OPT student to replace a full-time, part-time, temporary, or permanent U.S. worker. DHS may conduct employer site visits to verify compliance with the training plan. The regulations generally provide 48 hours of notice, although DHS may conduct an unannounced visit when a complaint or evidence of noncompliance triggers the inspection.

Changes in Employment Require Prompt Action

A student who begins a new STEM OPT position with a new employer must submit a new Form I-983 to the DSO within 10 days after beginning the new training opportunity and obtain a new DSO recommendation. (eCFR)

The student and employer must also update Form I-983 when a material change occurs. Material changes may include:

a change in the employer’s EIN because of restructuring;
a reduction in compensation unrelated to reduced hours;
a significant reduction in weekly hours;
a reduction below the required 20-hour minimum; or
a change that makes the employer’s prior attestations or description of the training inaccurate.

The student and employer must submit the modified Form I-983 to the DSO at the earliest available opportunity.

Reporting and Evaluation Deadlines

STEM OPT imposes reporting duties throughout the 24-month period.

The student must report changes to legal name, residential or mailing address, employer name, employer address, or loss of employment to the DSO within 10 days. The student must also complete validation reports every six months, generally at months 6, 12, 18, and 24. The validation report is due to the DSO within 10 business days of each reporting date.

The student and employer must complete a first self-evaluation at 12 months and a final evaluation at the end of the training opportunity. The student must ensure that the DSO receives each evaluation no later than 10 days after the applicable reporting period or training opportunity ends.

If the employment ends before the authorized STEM OPT end date, the employer must report the termination or departure to the DSO within five business days. The employer must treat the student as having departed when it knows the student left the position or when the student fails to report for five consecutive business days without the employer’s consent, whichever occurs first.

The 150-Day Unemployment Limit

A student may not accrue more than 150 aggregate days of unemployment across the initial post-completion OPT period and the subsequent 24-month STEM OPT extension.

This is a total limit. It does not provide 150 additional unemployment days during STEM OPT. For example, a student who used 70 unemployment days during ordinary post-completion OPT would have no more than 80 unemployment days remaining during STEM OPT.

Because F-1 status during post-completion practical training depends upon qualifying employment, students should promptly report job loss, maintain records of employment dates, and coordinate any employer change with the DSO.

International Travel With an Approved STEM OPT EAD

A student who travels with approved STEM OPT may seek admission through the expiration date shown on the approved STEM OPT EAD, plus the Final Rule’s 30-day period. Admission remains subject to CBP inspection and the ordinary documentary and admissibility requirements.

The student should ordinarily carry:

a valid passport;
a valid F-1 visa, unless an exception applies;
the STEM OPT EAD;
the most recent Form I-20 endorsed for travel and STEM OPT;
current evidence of qualifying employment; and
any relevant USCIS approval or receipt notices.

The existing regulations generally require the Form I-20 used with a post-completion OPT EAD to have a DSO travel endorsement issued within the preceding six months.

International Travel While STEM OPT Is Pending

The Final Rule permits CBP to admit a student whose STEM OPT Form I-765 remains pending through the DSO-recommended employment end date shown on the Form I-20, plus 30 days. The student should carry the Form I-797C receipt notice confirming USCIS’s receipt of Form I-765 and the latest Form I-20 showing the DSO’s STEM OPT recommendation and proposed end date.

This provision does not guarantee admission. CBP retains authority to determine admissibility and the appropriate period of admission at the port of entry.

Travel may also affect a pending Form I-539. USCIS will not necessarily treat the extension request as abandoned when the student returns only for the unexpired balance of the prior admission. USCIS may, however, deem the Form I-539 abandoned when the student seeks and receives a new admission period based on a Form I-20 extending beyond the former admission period. The corresponding Form I-765 remains pending and is not deemed abandoned solely because of the travel.

A student should therefore analyze the intended request for admission before departing, not simply assume that travel will have no effect on the pending Form I-539.

A Later I-94 Does Not Necessarily Authorize Continued Employment

A student admitted while Form I-765 remains pending may receive an I-94 extending through the DSO’s recommended STEM OPT end date. If the EAD and any applicable 180-day automatic extension expire before USCIS decides the application, the student may remain in a period of authorized stay through the I-94 end date but must stop working when employment authorization ends.

This distinction is critical:

The I-94 controls the period of authorized admission.
The EAD and automatic-extension rules control employment authorization.

One document does not substitute for the other.

Transition Relief Through March 18, 2027

A student covered by the Duration of Status transition provisions may qualify for temporary relief from the new Form I-539 requirement.

An F-1 student recommended for STEM OPT does not need to file Form I-539 for the requested STEM OPT period when the student:

files Form I-765 before the current post-completion OPT EAD expires; and
files Form I-765 on or before March 18, 2027.

If USCIS approves the application, the transition student may remain in F-1 status through the STEM OPT EAD expiration date, plus 60 days. DHS may extend the March 18, 2027 deadline in six-month increments through a notice in the Federal Register.

A transition student who leaves the United States before filing for STEM OPT and then returns with a fixed period of admission must file both Form I-765 and Form I-539.

Students and DSOs should check the Federal Register before relying on any extension of the March 18, 2027 date.

Practical Timeline

Assume the following facts:

Current post-completion OPT EAD expires: June 30, 2028
DSO enters the STEM recommendation in SEVIS: May 1, 2028
Requested STEM OPT period: July 1, 2028, through June 30, 2030

The student may file Form I-765 as early as approximately 90 days before June 30, 2028. Because the DSO entered the recommendation on May 1, USCIS must receive Form I-765 within 60 days after that recommendation and before the existing EAD expires. The student should file Form I-539 concurrently and before the current fixed period of admission expires. (eCFR)

If USCIS receives the filings on time:

the student may continue qualifying employment under the 180-day automatic EAD extension beginning July 1, 2028;
the automatic work authorization ends when USCIS issues its written decision or after 180 days, whichever occurs first;
if USCIS approves both applications, the 24-month STEM period runs from July 1, 2028, through June 30, 2030; and
the permanent fixed-admission system provides an additional 30 days, generally through July 30, 2030, to depart or take timely action to maintain lawful status.

If the student waits until after June 30, 2028, to file Form I-539 during the 30-day period, the student may not rely on that late-stage filing to continue STEM employment while the application remains pending.

STEM OPT Compliance Checklist

Before filing:

Confirm that the degree and CIP code appear on the current STEM Designated Degree Program List.
Confirm that the employer participates in E-Verify and has a valid EIN.
Complete and sign Form I-983 with the employer.
Submit Form I-983 to the DSO.
Obtain the DSO’s STEM OPT recommendation and updated Form I-20.
File Form I-765 no more than 90 days before the current EAD expires.
Ensure USCIS receives Form I-765 within 60 days after the DSO recommendation and before the current EAD expires.
Determine whether the student qualifies for the temporary March 18, 2027 Form I-539 exemption.
If no exemption applies, file Form I-539 concurrently and before the current period of admission expires.
Include F-2 dependents in the extension analysis.

During STEM OPT:

Complete validation reports at 6, 12, 18, and 24 months.
Submit the 12-month and final Form I-983 evaluations on time.
Report required changes within 10 days.
Submit a new Form I-983 after changing employers.
Track aggregate unemployment and remain below 150 days.
Monitor the Form I-94, EAD, Form I-20, passport, visa, and USCIS receipt notices separately.
Obtain legal and DSO advice before international travel while either application remains pending.

Conclusion

The Final Rule leaves the 24-month STEM OPT benefit in place, but it transforms the immigration procedure surrounding that benefit.

Most students governed by the permanent fixed-admission system will need both employment authorization and a separate fixed period of F-1 admission. They will ordinarily satisfy those requirements through concurrent Forms I-765 and I-539 or through employment authorization followed by admission through CBP after international travel.

The existing 180-day automatic EAD extension remains an important protection, but it does not eliminate the Form I-539 requirement. Nor does it extend the 24-month STEM period. Students must protect employment authorization and lawful admission separately.

The Final Rule also makes early preparation more important. A student who waits until the 30-day period to address the extension of stay may preserve an opportunity to request lawful status but lose the ability to continue working while USCIS adjudicates the case.

About Zneimer & Zneimer P.C.

Zneimer & Zneimer P.C. is a Chicago immigration and litigation law firm representing students, universities, physicians, hospitals, employers, professionals, businesses, and families throughout the United States. Our Chicago immigration lawyers monitor federal regulations, USCIS policy, SEVP requirements, and immigration litigation and help clients coordinate F-1 status, OPT, STEM OPT, H-1B petitions, and employment-based immigration strategies.