Visa questions, in plain words

U.S. visa basics
  • Types of U.S. visas
  • U.S. visa eligibility requirements
  • How to apply for a U.S. visa
  • U.S. visa application fees
  • U.S. visa processing times
  • Documents required for a U.S. visa
  • DS-160 application guide
  • How to book a U.S. visa appointment
  • How to check U.S. visa application status
  • U.S. visa interview questions and answers
Tourist and business visas
  • B-1 versus B-2 visa
  • U.S. tourist visa requirements
  • Financial documents for a U.S. tourist visa
  • Invitation letter for a U.S. visitor visa
  • U.S. tourist visa interview preparation
  • U.S. visitor visa renewal
  • U.S. visa interview waiver eligibility
  • How to extend a U.S. visitor stay
  • U.S. tourist visa refusal under Section 214(b)
  • Reapplying after a U.S. visa denial
Student visas
  • F-1 student visa requirements
  • F-1 visa interview questions
  • Form I-20 requirements
  • How to pay the SEVIS fee
  • Financial proof for a U.S. student visa
  • F-1 visa renewal
  • F-1 student visa versus student status
  • F-1 student employment rules
  • F-2 dependent visa requirements
  • F-1 reinstatement after a status violation
Student employment and exchange visitors
  • Optional Practical Training eligibility
  • How to apply for OPT
  • STEM OPT extension requirements
  • Curricular Practical Training eligibility
  • CPT versus OPT
  • OPT unemployment limits
  • Traveling internationally while on OPT
  • F-1 to H-1B change of status
  • J-1 visa two-year home residency requirement
  • J-1 waiver application process
Work visas
  • H-1B visa eligibility
  • H-1B lottery registration process
  • H-1B cap-exempt employers
  • H-1B visa sponsorship jobs
  • H-1B employer transfer process
  • H-1B extension requirements
  • H-4 dependent visa requirements
  • H-4 employment authorization eligibility
  • L-1 visa requirements
  • O-1 visa requirements
Other employment and investment routes
  • O-1 visa evidence for researchers
  • O-1 visa versus EB-1A green card
  • TN visa eligibility
  • E-2 investor visa requirements
  • E-2 visa versus EB-5 green card
  • H-2A agricultural worker visa
  • H-2B temporary worker visa
  • U.S. visa options for nurses
  • U.S. visa options for PhD graduates
  • U.S. visa options for research scientists
Green card basics
  • How to get a U.S. green card
  • Green card eligibility categories
  • Green card application costs
  • Green card processing times
  • Adjustment of status versus consular processing
  • Form I-485 application guide
  • Green card medical examination requirements
  • Green card interview questions
  • How to check green card application status
  • Reasons for green card application denial
Employment-based green cards
  • EB-1A extraordinary ability requirements
  • EB-1B outstanding professor or researcher requirements
  • EB-1C multinational manager requirements
  • EB-2 advanced degree requirements
  • EB-2 National Interest Waiver requirements
  • EB-2 NIW evidence for PhD students
  • Publications and citations for EB-1A and NIW
  • EB-1A versus EB-2 NIW
  • EB-3 green card requirements
  • PERM labor certification process
Family-based green cards
  • Marriage-based green card requirements
  • Green card through a U.S. citizen spouse
  • Green card through a permanent resident spouse
  • Green card sponsorship for parents
  • Green card sponsorship for children
  • Green card sponsorship for siblings
  • K-1 fiancé visa requirements
  • CR-1 versus IR-1 spouse visa
  • Form I-864 Affidavit of Support requirements
  • Removing conditions on a marriage-based green card
Waiting times, travel, and permanent residence
  • Latest U.S. Visa Bulletin
  • How to understand green card priority dates
  • Visa Bulletin Dates for Filing versus Final Action Dates
  • Green card backlog by country
  • Diversity Visa lottery eligibility and application
  • Employment authorization while I-485 is pending
  • Advance parole travel requirements
  • Green card renewal and replacement
  • International travel and reentry permits for green card holders
  • U.S. citizenship eligibility after a green card

See all 100 questions →

More about this

  • OPT guide
  • STEM OPT guide
  • CPT guide
  • Student visa process
  • Glossary

Unofficial site. Data from official U.S. government websites.

Visa issuance numbers, appointment wait times and the Visa Bulletin come from the U.S. Department of State (issuance reports, wait times, Visa Bulletin). Green card numbers come from the Department of Homeland Security (Office of Homeland Security Statistics). Issuance counts are not approval rates, and monthly figures are preliminary. This site is not legal or immigration advice and is not affiliated with the U.S. government.

Data through February 2026 · 108 months published since March 2017

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Start here › STEM OPT process

Student work · STEM OPT

STEM OPT extension: your step-by-step guide

Tick items as you finish them. Your progress is saved on this device only.

  1. 1Your degree
  2. 2Your record
  3. 3Employer
  4. 4Training plan
  5. 5STEM I-20
  6. 6File I-765
  7. 7While waiting
  8. 8New card
  9. 9Reports
  10. 10Unemployment

The usual order

Start about six months before your OPT ends. Your school may need more time than the government.

  1. 6+ months before OPT endsCheck the degree, your record and the employer
  2. NextComplete Form I-983 with your employer
  3. ThenGet the STEM-recommended I-20
  4. Up to 90 days before OPT endsFile Form I-765 (not after the end date)
  5. After filingKeep working up to 180 days if the rule applies
  6. Every 6 monthsValidation report; then evaluations at 12 months and at the end
1

Check that your degree qualifies

Find out whether your degree is on the STEM list.

At least 6 months before your OPT ends

STEM means science, technology, engineering and math. An eligible student can ask for a 24-month extension of OPT. It is not automatic, and the word "science" in a degree name does not decide it.

STEM OPT requirements →OPT guide →
2

Check your current OPT record

Know your dates and days used.

Right after the degree check
3

Check the employer

Make sure the job and employer both qualify.

Before you accept or change a job

The employer must

Unpaid volunteer work does not qualify. If you work through a staffing company or several firms, ask who employs you, who supervises you and who provides the training.

4

Complete Form I-983 with the employer

Write a real training plan.

Before your school recommends
What it is

Form I-983 is a training plan. It describes what you will learn, who supervises you and how progress is measured.

Who fills it in

You fill your parts. The employer fills and signs its parts. It goes to your DSO through the school process.

Be specific

Write real duties and learning goals. "The student will learn useful skills" is too vague.

5

Get the STEM-recommended I-20

A new I-20 with the recommendation.

After the school receives the plan
6

File Form I-765 in time

File before your current OPT expires.

Up to 90 days before OPT ends
Visa fees →
7

Work while the extension is pending

Know what the STEM rule allows.

After filing

A STEM extension filed on time can let you keep working for up to 180 days after your current OPT ends, while USCIS decides. It ends earlier if USCIS decides the case. First-time OPT does not have this rule. Keep the receipt and records your employer needs.

8

Check the new card and keep copies

Everything correct and saved.

When it arrives
9

Complete the reports on time

Never miss a report.

During the 24 months
10

Count your unemployment days

Stay within the limit.

All through OPT

The usual total is about 150 days across first OPT and the STEM extension together. If you used 40 days earlier, you have 110 left, not a new 150.

Plan your next step before the card ends. Your employment card and your permitted stay are different, so check both.

OPT unemployment limits →H-1B process →

Who does what

1. Your school (DSO)checks your degree and recommends the extension
2. Your employerjoins E-Verify and signs the training plan
3. USCISdecides your I-765

File on time, before your current OPT ends.

Visa Status is an unofficial site. This is a general guide in plain words, not legal advice. STEM OPT rules change, so check with your school and the official ICE and USCIS pages. Written October 2026.

Also see

STEM OPT questions →OPT guide →H-1B process →Glossary →