24-Month STEM OPT Extension: Complete Guide for F-1 Students

For international students on F-1 visas in the United States, Optional Practical Training (OPT) offers a valuable bridge between academic study and professional employment. While standard OPT provides twelve months of work authorisation, graduates with degrees in science, technology, engineering, or mathematics fields may qualify for an additional 24-month extension. This STEM OPT extension can transform a one-year opportunity into nearly three years of US work experience, opening pathways to employer sponsorship and longer-term immigration options.

Understanding the requirements, application process, and employer obligations is essential for F-1 students planning to maximise their post-graduation work authorisation. This guide walks through every aspect of the 24-month STEM OPT extension, from determining eligibility to managing the application timeline and maintaining lawful status throughout the extension period.

Key facts

What is the STEM OPT extension?

The STEM OPT extension is a 24-month period of work authorisation available to F-1 students who have completed degrees in qualifying science, technology, engineering, or mathematics fields. It extends the standard twelve-month OPT period, allowing eligible graduates to work in the United States for up to three years total after completing their studies.

This extension was designed to address workforce needs in technical fields while providing international graduates with substantial US work experience. Unlike the initial OPT period, the STEM extension carries additional requirements for both students and their employers, including formal training plans and regular reporting obligations.

How STEM OPT differs from standard OPT

Standard OPT is available to all F-1 students regardless of their field of study and provides twelve months of work authorisation directly related to their degree. The STEM extension, by contrast, is available only to graduates whose degrees appear on the official STEM Designated Degree Program List and who work for E-Verify-enrolled employers.

The STEM extension also introduces structured training requirements through Form I-983, which establishes formal learning objectives and evaluation mechanisms. Employers must provide regular feedback, and students must report any changes in employment or personal information to their designated school official within ten days.

Eligibility requirements for the 24-month extension

To qualify for the STEM OPT extension, F-1 students must meet several specific criteria related to their degree, employment, and current immigration status.

Degree and field of study

Your degree must be included on the STEM Designated Degree Program List maintained by the Department of Homeland Security. This list identifies qualifying programmes by their Classification of Instructional Programs (CIP) code. The list includes traditional STEM fields such as computer science, engineering disciplines, biological sciences, and mathematics, as well as some interdisciplinary programmes and certain social sciences with quantitative focus.

The degree you are using to qualify for the STEM extension must be the same degree for which you are currently on OPT. If you have earned multiple degrees, you must be on OPT based on your most recent STEM degree to apply for the extension. You can review STEM degrees and their role in US immigration pathways to understand how your field of study fits into broader immigration planning.

Current OPT status

You must currently be in a valid period of post-completion OPT based on a STEM degree. Your application for the 24-month extension must be filed before your current OPT employment authorisation document (EAD) expires. USCIS will not accept applications filed after the standard OPT period has ended.

You must also have maintained lawful F-1 status and not exceeded the unemployment limitations during your initial OPT period. Standard OPT allows a maximum of 90 days of unemployment; exceeding this threshold can make you ineligible for the extension.

Employer requirements

Your employer must be enrolled in E-Verify, the federal electronic employment verification system. This is a non-negotiable requirement; employers who are not enrolled in E-Verify cannot sponsor STEM OPT extensions, regardless of the nature of the work or the student's qualifications.

The position you hold must be directly related to your STEM degree and must provide practical experience that enhances your knowledge in your field of study. Your employer must be willing to complete and sign Form I-983, the Training Plan for STEM OPT Students, which outlines specific learning objectives and evaluation criteria.

The application process step by step

Applying for the STEM OPT extension involves coordination between you, your designated school official (DSO), and your employer. The process requires careful attention to timing and documentation.

Step one: confirm eligibility and timing

Begin by verifying that your degree appears on the STEM Designated Degree Program List and that your employer is enrolled in E-Verify. You can confirm your employer's E-Verify status by asking your human resources department directly.

Plan your application timeline carefully. You may apply for the extension up to 90 days before your current OPT EAD expires, and you must submit your application before that expiration date. Filing early is strongly recommended, as USCIS processing times can vary and any delays could leave you without work authorisation.

Step two: complete Form I-983 with your employer

Work with your employer to complete Form I-983, the Training Plan for STEM OPT Students. This form requires your employer to identify specific learning objectives, describe how your position relates to your degree, outline the training and supervision you will receive, and commit to providing regular evaluations of your progress.

Both you and your employer must sign the form. Your employer's authorised signatory (typically someone in human resources or management) must also sign, confirming the company's E-Verify enrolment and commitment to the training plan requirements.

Step three: obtain DSO recommendation

Take the completed Form I-983 to your designated school official. Your DSO will review the training plan, verify your eligibility, and if everything is in order, recommend you for the STEM OPT extension in the Student and Exchange Visitor Information System (SEVIS).

Once your DSO enters the recommendation, they will provide you with an updated Form I-20 with a new STEM OPT recommendation. This I-20 is a critical component of your application package.

Step four: prepare and file Form I-765

Complete Form I-765, Application for Employment Authorisation, selecting the appropriate category code for STEM OPT extension applicants. Gather all required supporting documents, including your updated I-20 with STEM recommendation, a copy of your STEM degree, a copy of your current OPT EAD, passport-style photographs, and the completed Form I-983.

You can find detailed filing instructions and current fee information on the USCIS Form I-765 page. Mail your complete application package to the appropriate USCIS lockbox facility as specified in the form instructions.

Step five: track your application and receive your EAD

After filing, you will receive a receipt notice from USCIS confirming they have accepted your application. You can track your case status online using the receipt number. If you file your STEM OPT extension application before your current OPT expires, you receive an automatic 180-day extension of your work authorisation while USCIS processes your application, even if your original EAD expires during that time.

Once approved, USCIS will mail you a new EAD card valid for 24 months from the end date of your initial OPT period. Keep this card with you as proof of your work authorisation.

Employer obligations during STEM OPT

Employers who hire STEM OPT students take on specific responsibilities beyond standard employment practices. Understanding these obligations is important both for students selecting employers and for ensuring compliance throughout the extension period.

E-Verify enrolment and use

Employers must be enrolled in E-Verify at the time they sign Form I-983 and must remain enrolled throughout the student's STEM OPT period. They must use E-Verify to confirm the employment eligibility of all new hires in accordance with the programme's requirements. Details about E-Verify enrolment and employer obligations are available on the official E-Verify website.

Training plan implementation and evaluation

Employers must implement the training plan outlined in Form I-983, providing the learning opportunities, supervision, and practical experience described in the document. They must conduct formal evaluations of the student's progress at the twelve-month mark and at the conclusion of the STEM OPT period, or whenever the student changes employers.

These evaluations must be documented on Form I-983 and provided to the student, who must then submit them to their DSO. The evaluations should address whether the learning objectives are being met and describe the student's development in their field.

Reporting requirements

Employers must report certain changes to the DSO within five business days, including termination of the student's employment (voluntary or involuntary) and any material changes to the training plan that affect the student's learning objectives or working conditions.

Employers must also attest that the terms and conditions of the student's employment are commensurate with those provided to similarly situated US workers. This means compensation, benefits, and working conditions should be comparable to what the employer provides to other employees in similar roles.

Maintaining status during your STEM OPT extension

Once your STEM OPT extension is approved, you must continue to meet specific requirements to maintain your F-1 status and work authorisation.

Unemployment limits

During the 24-month STEM OPT extension, you may be unemployed for a maximum of 60 days (in addition to the 90 days allowed during your initial OPT). Unemployment includes any time you are not engaged in practical training related to your degree, whether you are actively seeking work or not.

If you lose your job during your STEM OPT extension, you must find new qualifying employment with an E-Verify employer within the 60-day limit. You must also complete a new Form I-983 with your new employer and submit it to your DSO.

Reporting obligations

You must report any changes to your legal name, residential or mailing address, employer name or address, or loss of employment to your DSO within ten days of the change. This is a stricter reporting requirement than standard OPT, which allows 21 days for some types of changes.

You must also submit employer evaluations to your DSO when they are completed and ensure that your DSO has current contact information for you at all times.

Changing employers

You may change employers during your STEM OPT extension, but the new employer must also be enrolled in E-Verify, and the new position must be directly related to your STEM degree. You must complete a new Form I-983 with the new employer and submit it to your DSO for review and entry into SEVIS.

You do not need to file a new Form I-765 or receive a new EAD when changing employers during your STEM OPT period, as long as your current EAD remains valid. However, you must report the change to your DSO within ten days and ensure the new training plan is in place before beginning work with the new employer.

After STEM OPT: next steps and immigration pathways

The STEM OPT extension provides nearly three years of work authorisation, but it is still a temporary benefit tied to your F-1 student status. Many STEM OPT participants use this time to position themselves for longer-term immigration options.

H-1B visa sponsorship

The most common pathway after STEM OPT is the H-1B specialty occupation visa. Many employers who hire STEM OPT students are willing to sponsor them for H-1B status, which provides an initial three-year period of work authorisation (extendable to six years) and can lead to permanent residence sponsorship.

The H-1B programme operates on an annual cap, with a lottery held each spring for positions starting in October. The extended timeline provided by STEM OPT gives you up to three chances to enter the H-1B lottery, significantly improving your odds of selection compared to students on standard twelve-month OPT.

Employer-sponsored permanent residence

Some employers may be willing to sponsor STEM OPT employees directly for permanent residence through the employment-based green card process. This typically involves labour certification (demonstrating that no qualified US workers are available for the position) followed by an immigrant visa petition.

The process can take several years, particularly for applicants from countries with high demand such as India and China. The extended work authorisation provided by STEM OPT can provide crucial time to begin this process while maintaining lawful status and employment.

Other visa categories

Depending on your circumstances, other visa categories may be available. The O-1 visa for individuals with extraordinary ability in sciences, education, business, or athletics is an option for some highly accomplished STEM professionals. The L-1 intracompany transfer visa may be available if your employer has international offices and is willing to transfer you abroad and then back to the United States.

If you are considering further study, you may also apply for a new F-1 visa for a higher degree programme. Completing a master's or doctoral degree in a STEM field would make you eligible for another round of OPT and STEM OPT extension, though this path requires significant additional time and financial investment. You can explore universities and study options if you are considering additional degrees as part of your long-term strategy.

Common challenges and how to address them

While the STEM OPT extension is a valuable opportunity, applicants sometimes encounter obstacles during the application process or extension period.

Employer reluctance or unfamiliarity

Some employers, particularly smaller companies or those without experience hiring international students, may be hesitant about the STEM OPT extension due to the additional paperwork and compliance requirements. If you encounter this situation, offering to guide your employer through the process and providing them with resources from USCIS and SEVP can help.

Emphasise that the extension provides them with a highly skilled employee for an additional two years at no direct cost to the company (beyond administrative time). Many employers who are initially uncertain become comfortable with the process once they understand the requirements.

Degree not on the STEM list

If your degree programme is not currently on the STEM Designated Degree Program List but you believe it should qualify based on its content, contact your DSO. In some cases, universities can request that the Department of Homeland Security add specific degree programmes to the list, though this process can take time and there is no guarantee of approval.

Alternatively, if you have completed multiple degrees and one of them is on the STEM list, you may be able to apply for a new period of standard OPT based on that degree (if you have not previously used OPT for it) and then apply for the STEM extension.

Processing delays

USCIS processing times for Form I-765 can vary. If you file your STEM OPT extension application before your current OPT expires, you receive an automatic 180-day extension of your employment authorisation, which provides a buffer against processing delays.

However, if USCIS has not adjudicated your case within 180 days, you must stop working until you receive your new EAD. To minimise this risk, file your application as early as possible (up to 90 days before your current OPT expires) and ensure all documentation is complete and accurate to avoid requests for evidence that can further delay processing.

Frequently asked questions

Can I apply for STEM OPT extension if I am currently unemployed?

Yes, you can apply for the STEM OPT extension even if you are currently unemployed, as long as you have not exceeded the 90-day unemployment limit during your initial OPT period and your OPT has not yet expired. However, you must have a job offer from an E-Verify employer and complete Form I-983 with that employer as part of your application. You cannot begin working until you have either received your STEM OPT EAD or your current OPT EAD is still valid and your STEM extension application has been filed.

What happens if my STEM OPT extension application is denied?

If USCIS denies your STEM OPT extension application, your work authorisation ends on the expiration date of your initial OPT EAD (or at the end of the 180-day automatic extension period if you were in that status). You must stop working immediately and will typically have a 60-day grace period to depart the United States, change to another visa status, or take other action to maintain lawful presence. You may be able to file a motion to reopen or reconsider the decision if you believe USCIS made an error, but you should consult with an immigration lawyer to evaluate your options.

Can I work for multiple employers during my STEM OPT extension?

Yes, you may work for more than one employer during your STEM OPT extension, but each employer must be enrolled in E-Verify and each position must be directly related to your STEM degree. You must complete a separate Form I-983 for each employer and submit all training plans to your DSO for review and entry into SEVIS. All of your employment combined must not exceed the unemployment limits, and you must report all employers to your DSO.

Do I need to be working full-time during STEM OPT extension?

STEM OPT regulations do not explicitly require full-time employment, but your work must provide at least 20 hours per week on average to count as employment for unemployment-tracking purposes. Working fewer than 20 hours per week is considered unemployment and counts against your 60-day limit. Many students work full-time to maximise their practical training experience and to meet employer expectations, but part-time work of at least 20 hours per week is permissible under the regulations.

Can I travel outside the United States during my STEM OPT extension?

Yes, you may travel outside the United States during your STEM OPT extension and return, but you must carry specific documents with you to re-enter. You will need your valid passport, valid F-1 visa stamp (if your visa has expired, you will need to apply for a new one at a US consulate abroad), current Form I-20 with your DSO's travel signature issued within the past six months, valid STEM OPT EAD card, and evidence of your ongoing employment (such as a letter from your employer). Re-entry is never guaranteed, and you should consult with your DSO before making international travel plans to ensure you have all necessary documentation.