What are the main categories of US visas?

US visas are grouped into nonimmigrant visas for temporary stays and immigrant visas for permanent residence, with each category tied to a specific purpose such as work, study, business or family. The letter and number of a visa category, such as B-1 or H-1B, identifies the specific purpose it covers.

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How it works

Each nonimmigrant category has its own eligibility rules, application process and permitted activities, and holding one category does not permit activities reserved for another. Immigrant visas lead toward permanent residence and follow a different process, often requiring a sponsor.

Commonly mixed up with

A visa and a visa waiver entry are sometimes used interchangeably in conversation. They are different mechanisms with different eligibility rules and different permitted activities.

What are the main categories of US visas?

What are the main categories of US visas?
Knowledge, New YorkLegal, visa and entry
Short answerUS visas are grouped into nonimmigrant visas for temporary stays and immigrant visas for permanent residence, with each category tied to a specific purpose such as work, study, business or family. The letter and number of a visa category, such as B-1 or H-1B, identifies the specific purpose it covers.
How it worksEach nonimmigrant category has its own eligibility rules, application process and permitted activities, and holding one category does not permit activities reserved for another. Immigrant visas lead toward permanent residence and follow a different process, often requiring a sponsor.
Commonly mixed up withA visa and a visa waiver entry are sometimes used interchangeably in conversation. They are different mechanisms with different eligibility rules and different permitted activities.
Last reviewed2026-08-08

Short questions

What is a B-1 or B-2 visa for?
B-1 covers business visitors and B-2 covers tourism and visiting, both for temporary stays.
What is an H-1B visa?
It is a nonimmigrant work visa for specialty occupations, subject to an annual cap in most cases.
Can a visa be extended?
Some nonimmigrant categories allow extension of stay applications, subject to conditions.
Does a visa guarantee entry?
No, a visa allows travel to a US port of entry, and an officer decides admission there.
Where are the categories listed?
USCIS and the State Department publish the full list of visa categories.

Sources

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