Each requirements page covers eligibility criteria, common pitfalls, USCIS approval rate history, and a comparison with related visa types.
Employment Visas
Immigrant (Green Card)
Student & Exchange
⚠️ Immigration requirements change. Always consult a licensed immigration attorney for your specific situation.
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Frequently Asked Questions
What are the basic requirements for an H-1B visa?
H-1B requires: (1) a job offer in a specialty occupation, (2) a US Bachelor's degree or equivalent in the relevant field, (3) an employer willing to file a Labor Condition Application with DOL, and (4) selection in the annual H-1B lottery (85,000 cap). Many applicants are qualified but not selected due to the lottery.
What qualifies as "extraordinary ability" for O-1 or EB-1A?
USCIS requires evidence of national or international acclaim in your field. You must meet at least 3 of 10 criteria including: major awards or prizes, membership in elite associations, published articles about you, judging others' work, original contributions, high salary, critical role in distinguished organizations.
Can I self-petition for a US green card?
Yes, two green card categories allow self-petition: EB-1A (Extraordinary Ability) requires sustained national/international acclaim. EB-2 NIW (National Interest Waiver) requires an advanced degree plus showing your work has substantial merit and national importance under the Dhanasar framework.
What is the difference between immigrant and nonimmigrant visa requirements?
Nonimmigrant visas (H-1B, O-1, L-1, F-1, etc.) are temporary and require you to maintain nonimmigrant intent in most cases. Immigrant visas (EB-1, EB-2, EB-5) are for permanent residents and lead directly to a green card. The requirements and application processes differ significantly.