Work Permit vs EAD: Work Authorization Types
Understand the different types of work authorization in the U.S.: EAD, Green Card, work visas, and more. Know your rights and what employers can ask.
Key Takeaways
An Employment Authorization Document (EAD) is one way to prove work authorization for a specific time period (USCIS)
Green Card holders have permanent work authorization, even though the physical card must be renewed
Work visas tie you to a specific employer; switching requires sponsorship
Employers cannot discriminate based on citizenship status or work authorization type
Staffing apps work with valid work authorization categories accepted through onboarding
Immigration Information Disclaimer
Immigration and work authorization information on this page is general guidance only, not legal advice. Immigration rules are complex, change frequently, and depend on individual circumstances. For decisions about your status, documents, or eligibility, consult a licensed immigration attorney or a U.S. Department of Justice (DOJ) accredited representative.
What Types of Work Authorization Exist in the U.S.?
There are several ways to be legally authorized to work in the United States:
1. U.S. Citizenship
- Permanent, unrestricted work authorization
- Born in U.S. or naturalized
- I-9 documents: U.S. Passport, or ID + Birth Certificate/Naturalization Certificate
2. Permanent Residence (Green Card)
- Permanent, unrestricted work authorization
- Work for any employer
- No employment sponsor needed
- I-9 document: Permanent Resident Card (I-551)
3. Employment Authorization Document (EAD/I-766)
- Work permit for specific categories of non-citizens
- Issued by USCIS
- Has expiration date
- Work for any employer while valid
4. Work Visas
- Authorization tied to specific employer
- Examples: H-1B, L-1, O-1, H-2A, H-2B
- Changing jobs requires new sponsorship
5. Student/Exchange Work Authorization
- F-1 OPT/CPT
- J-1 work authorization
- Limited duration and conditions
What Is an Employment Authorization Document (EAD)?
The EAD (Form I-766) is a USCIS-issued document that proves work authorization for a specific period of time.
Who may need an EAD?
- Certain students and nonimmigrants who need USCIS permission to work
- People with a pending asylum application
- People with a pending adjustment-of-status application
- Other eligible immigration categories listed by USCIS
Important distinction:
USCIS says some people do not need to apply for an EAD. For example:
- Lawful permanent residents use a Green Card as evidence of authorization
- Some nonimmigrant workers are authorized to work incident to status for a specific employer
EAD validity:
- EADs have expiration dates
- Renewal timing depends on category
- USCIS encourages filing a renewal as soon as you are within 180 days of expiration
- Some categories may qualify for automatic extension while renewal is pending
Using EAD for I-9:
- EAD is a List A document
- One valid, unexpired EAD can prove both identity and work authorization
How Does a Green Card Affect Work Authorization?
Lawful Permanent Residents (LPRs) have unrestricted work authorization:
What Green Card Holders Can Do:
- Work for any employer
- Change jobs freely
- Work full-time, part-time, or flexible hours
- No employer sponsorship needed
- Self-employment allowed
Green Card for I-9:
- Permanent Resident Card (I-551) is a List A document
- Proves both identity and work authorization
- Note: Card expiration doesn't mean status expires
- LPR status is permanent; only the card needs renewal
Expired Green Card?
If your card is expired or expiring:
- File Form I-90 to renew (up to 6 months before expiration)
- Receipt notice extends validity for 24 months
- Consider getting a U.S. passport after naturalization for easier I-9
Path to Citizenship:
Green Card holders can apply for U.S. citizenship after:
- 5 years as permanent resident (general rule)
- 3 years if married to U.S. citizen
- Meeting residence and presence requirements
Important: Even permanent residents must complete Form I-9 at every new job. Citizenship isn't required to work.
How Do Work Visas Differ From an EAD?
Work visas tie your authorization to a specific employer:
H-1B Visa (Specialty Occupations)
- For professional jobs requiring bachelor's degree
- Employer must sponsor and petition USCIS
- 3-year initial period, up to 6 years total
- Changing employers requires new petition
- Portability: Can work for new employer once petition filed
L-1 Visa (Intracompany Transfer)
- Transfer from foreign office of same company
- L-1A: Managers/executives (7 years max)
- L-1B: Specialized knowledge (5 years max)
- Tied to sponsoring employer
O-1 Visa (Extraordinary Ability)
- For individuals with extraordinary achievement
- Arts, sciences, business, athletics, education
- Initially 3 years, renewable
- Tied to petitioning employer/agent
H-2B Visa (Temporary Non-Agricultural)
- Seasonal, peak-load, or intermittent need
- Common in hospitality, landscaping, carnivals
- Tied to petitioning employer
- Limited to specific period of need
If You're On a Work Visa:
- You can only work for your sponsoring employer
- Side gigs (even a staffing app) may not be authorized
- Consult an immigration attorney before additional employment
- Some visas allow spouse to work (H-4 EAD, L-2)
How Do You Renew Work Authorization?
Most non-permanent work authorization expires and needs renewal.
EAD renewal basics:
- File Form I-765 with USCIS
- Start planning early
- USCIS encourages renewal filing as soon as you are within 180 days of expiration
- Some categories may receive automatic extension while a timely renewal is pending
During renewal:
- Keep your expired EAD and I-797C receipt notice if your category qualifies for ongoing work authorization
- Monitor your case status at USCIS
- Give your employer updated evidence when required
Planning ahead:
USCIS processing times can vary. File as early as your category allows so you reduce the chance of a work gap.
What Can Employers Legally Ask About Work Authorization?
Know your rights during the hiring process:
Employers CANNOT:
❌ Ask about immigration status before hiring ❌ Require specific documents for I-9 ❌ Refuse to hire based on citizenship status (with limited exceptions) ❌ Retaliate if you file a discrimination complaint ❌ Ask to see documents before making a job offer ❌ Treat you differently based on national origin
Employers CAN:
✓ Ask "Are you authorized to work in the United States?" on application ✓ Ask "Will you now or in the future require sponsorship?" on application ✓ Require I-9 completion and valid documents after hire ✓ Verify documents through E-Verify ✓ Require reverification when work authorization expires
Interview Questions:
If You Experience Discrimination:
Contact the Immigrant and Employee Rights Section (IER):
- Phone: 1-800-255-7688 (worker hotline)
- TTY: 1-800-237-2515
- Website: justice.gov/crt/ier
Document Abuse:
If an employer:
- Demands specific documents
- Rejects valid documents
- Requires more documents than necessary
- Requests documents again before expiration
This may be document abuse, a form of discrimination.
How Do Staffing Apps Handle Work Authorization?
Staffing apps work with workers who have valid work authorization.
What you'll need:
- Valid I-9 documents (see I-9 Documents List)
- Social Security Number or any employer-required follow-up tied to onboarding
- Bank account for direct deposit
- Smartphone (iOS or Android)
E-Verify process:
Many staffing apps use E-Verify:
- You complete Section 1 of Form I-9
- Present original documents
- Information is submitted to E-Verify
- If issues arise, you are notified and can follow the resolution process
When your authorization expires:
- You must stop working when authorization expires
- Update your staffing-app profile when you renew
- Re-verify with new documents when required
- Set reminders so you do not miss renewal windows
For immigration questions, use the USCIS website or speak with a licensed immigration attorney or DOJ-accredited representative.
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Frequently Asked Questions
Sources & References
We cite the underlying sources used to research this article so you can verify any fact yourself.
- 1USCIS Employment Authorization DocumentTier 1 · Primary
Accessed 2026-03-19
- 2USCIS I-9 CentralTier 1 · Primary
Accessed 2026-03-19
- 3USCIS Employee RightsTier 1 · Primary
Accessed 2026-03-19
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