Published June 6, 2025
US Visa Categories Explained: Every Type from A to V
The US visa system includes dozens of categories spanning diplomatic, temporary work, student, investor, and family visas. Each category has distinct eligibility requirements, durations, and pathways. This guide covers every major visa type with current data on issuance volumes.
Nonimmigrant Visa Categories
Nonimmigrant visas are for temporary stays in the United States. The major categories include:
- A visas, Diplomats and foreign government officials
- B-1/B-2, Business visitors and tourists, the most commonly issued nonimmigrant visa
- F-1, Academic students
- H-1B, Specialty occupation workers. See our H-1B process guide
- H-2A, Temporary agricultural workers
- H-2B, Temporary non-agricultural workers
- J-1, Exchange visitors
- L-1, Intracompany transferees
- O-1, Individuals with extraordinary ability
- TN, USMCA professionals from Canada and Mexico
Immigrant Visa Categories
Immigrant visas lead to lawful permanent resident status (green cards). They fall into several broad groups:
- Immediate Relatives, Spouses, parents, and unmarried children under 21 of US citizens (no cap)
- Family Preference (F1-F4), More distant relatives of US citizens and relatives of permanent residents
- Employment-Based (EB-1 through EB-5), From priority workers to investors. See our guide on EB-5 investor visas
- Diversity Visa, 55,000 visas allocated annually by lottery
For detailed data on any visa category, visit the visa detail pages which include processing times, approval rates, and Pipeline Scores.
Special and Humanitarian Visas
Beyond standard categories, the US offers several humanitarian and special visa types:
- U visa, Victims of certain crimes who assist law enforcement
- T visa, Victims of human trafficking
- VAWA, Self-petitions for victims of domestic abuse by US citizen or permanent resident spouses
- SIV, Special Immigrant Visas for Afghan and Iraqi nationals who worked with the US government
- Asylum/Refugee, Protection for those fleeing persecution. See our asylum process guide
Choosing the Right Visa Category
Selecting the appropriate visa category depends on your purpose of travel, qualifications, and long-term goals. Employment-based applicants should consider whether they qualify for the H-1B, L-1, O-1, or TN visa based on their specific circumstances.
For those seeking permanent residence, the choice between family-based and employment-based pathways involves tradeoffs in wait times, eligibility, and flexibility. Use the compare tool to evaluate different visa categories side by side.
Frequently Asked Questions
There are over 180 specific visa classifications in the US immigration system, grouped into approximately 25 major nonimmigrant categories (A through V) and several immigrant visa preference categories. Each main category has subcategories for different specific situations.
Nonimmigrant visas are for temporary stays (tourism, work, study) and generally require intent to return home. Immigrant visas are for those who intend to live permanently in the US and lead to green card status. Some nonimmigrant visas like H-1B allow "dual intent," meaning you can pursue a green card while on a temporary visa.
The B-1/B-2 tourist and business visitor visa is the most commonly issued and generally the easiest to obtain, though approval depends on demonstrating ties to your home country and legitimate purpose of travel. Among work visas, the TN visa (for Canadian and Mexican professionals) is often considered the most straightforward.
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