Published July 10, 2025
Work Authorization in the US: Every Type Explained
Work authorization in the United States takes many forms, from visa-specific work permits tied to a single employer to general Employment Authorization Documents that allow work for any employer. Understanding which type applies to your situation is essential for maintaining lawful status.
Visa-Specific Work Authorization
Several nonimmigrant visa categories include work authorization as part of the visa itself. The employer is specified, and changing jobs generally requires a new petition:
- H-1B, Specialty occupations, tied to specific employer. See our H-1B guide
- L-1A/L-1B, Intracompany transfers for managers/executives (L-1A) and specialized knowledge workers (L-1B)
- O-1, Extraordinary ability, tied to the petitioning employer or agent
- TN, USMCA professionals from Canada and Mexico
- E-1/E-2, Treaty traders and investors
These visas allow work only for the sponsoring employer in the approved role. Unauthorized employment can result in visa revocation and bars on future immigration benefits.
Employment Authorization Document (EAD)
The Employment Authorization Document (Form I-766, obtained through filing Form I-765) provides open-market work authorization, the holder can work for any employer. EAD-based work authorization is available to many categories including:
- Adjustment of status applicants, Those with pending I-485 applications
- H-4 spouses, Certain spouses of H-1B holders with approved I-140 petitions
- F-1 OPT/STEM OPT, Post-graduation work authorization for students
- Asylum applicants, After filing deadline or approval. See our asylum guide
- DACA recipients, Renewable two-year work authorization
- TPS holders, Temporary Protected Status beneficiaries
Green Card Work Authorization
Lawful permanent residents (green card holders) have unrestricted work authorization in the United States. They can work for any employer in any occupation without needing a separate work permit. Naturalized US citizens, of course, have the same unrestricted work rights.
During the green card process, many applicants receive interim work authorization through EADs or their underlying visa status while waiting for final adjudication.
Auto-Extension Rules
USCIS has implemented automatic extension rules for certain EAD categories to address processing delays. If you file a timely renewal of your EAD before it expires, your existing work authorization is automatically extended for up to 540 days while the renewal is pending. This applies to most EAD eligibility categories and prevents gaps in work authorization due to processing delays.
For the latest processing time data, see our processing times article or visit the relevant immigration glossary for I-765 specific data.
Frequently Asked Questions
A work visa (like H-1B or L-1) is tied to a specific employer and job, requiring a new petition to change employers. An EAD (Employment Authorization Document) provides open-market work authorization, allowing the holder to work for any employer in any position. They serve different purposes in the immigration system.
Yes. If you have filed an I-485 adjustment of status application, you can apply for an EAD (Employment Authorization Document) using Form I-765. This grants work authorization while your green card case is pending, and you can work for any employer.
If you file a timely EAD renewal before expiration, most categories qualify for an automatic extension of up to 540 days. This prevents gaps in work authorization due to processing delays. Check the Federal Register notice for the specific categories eligible for auto-extension.
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