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 › CPT process

Student work · CPT

CPT for F-1 students: get approval before your internship

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

  1. 1What is CPT?
  2. 2Curriculum
  3. 3Enrollment
  4. 4Offer letter
  5. 5Approvals
  6. 6Ask DSO
  7. 7Start work
  8. 8Changes
  9. 9Keep a history

The usual order

Leave time for school processing. Never start before the I-20 is approved.

  1. Weeks beforeCheck the curriculum link and enrollment, get the offer letter
  2. ThenDepartment approvals and the DSO request
  3. Before workReceive the CPT I-20 and check it
  4. DuringWork inside approved dates and hours
  5. AfterSave your CPT history before you plan OPT
1

Understand CPT

Know that the school, not USCIS, authorizes CPT.

Before you accept an internship

Curricular Practical Training (CPT) is training that is an integral part of your school's curriculum, such as a qualifying internship, practicum or co-op. Your Designated School Official (DSO) authorizes it. It usually does not need a USCIS form or a work permit card. The approval appears as a CPT note on your I-20.

CPT eligibility →CPT vs OPT →
2

Check the link to your studies

Show how the job fits your program.

As soon as you find a job

A useful job, a related job, or a job that gives college credit does not automatically qualify. The school must decide that the rules and the curriculum requirement are met.

3

Check your enrollment

Know if you have been enrolled long enough.

Before you ask
4

Get a detailed offer letter

A letter the school can approve.

Weeks before the start

Tell the employer your start depends on school approval, and leave time for processing. Do not promise to start right away.

5

Complete academic approvals

Course and department approvals saved.

Before you ask the DSO
6

Request CPT from the DSO

Get a CPT I-20.

After the approvals

Part-time CPT is 20 hours a week or fewer. Full-time CPT is more than 20. Do not go over what is approved.

7

Start only inside your authorization

No work before the approval.

On or after the start date

Approval first. Get the authorized I-20 before you work and wait for its start date. Working first and asking later is not allowed. Ask the DSO about orientation, training, remote duties and unpaid placements. Calling something "volunteering" does not settle the question.

8

Ask before you change anything

Keep every change approved.

Before any change
9

Keep a record of your CPT

Protect your OPT.

Throughout

One year or more of full-time CPT can make you ineligible for OPT at the same education level. Part-time CPT does not trigger that particular threshold. Save every CPT I-20 and count your full-time months.

OPT guide →

Who does what

1. Your schooldecides if the job fits your curriculum
2. Your employergives a detailed offer letter
3. Your DSOrecords CPT on your I-20

CPT is approved by your school. It usually needs no USCIS form or card.

Visa Status is an unofficial site. This is a general guide in plain words, not legal advice. Your school's international office decides CPT, so follow its steps. Written October 2026.

Also see

CPT questions →OPT guide →STEM OPT guide →Student visa process →Glossary →