Work authorization in the United States is not automatic for most immigrants — it requires a specific document issued by U.S. Citizenship and Immigration Services (USCIS) that confirms the holder’s legal right to work for a defined period. Form I-766, the Employment Authorization Document, is that document. It is issued after an approved Form I-765, Application for Employment Authorization, and serves as both proof of work eligibility and a government-issued photo identification. For many immigrants, receiving this card is a defining milestone — and losing track of its expiration date can disrupt employment without warning.
The relationship between Form I-765 and Form I-766
These two forms are frequently referenced together but serve distinct purposes. Form I-765 is the application — the request submitted to USCIS asking for work authorization. Form I-766 is the physical card issued after that application is approved. An applicant cannot receive Form I-766 without first filing and receiving approval of Form I-765. The card itself is not filed; it is produced and mailed by USCIS upon approval.
Once Form I-765 is approved, the EAD card typically arrives within approximately two weeks via USPS Priority Mail, according to the source document. Processing times for Form I-765 vary by eligibility category and service center — current estimates are available on the USCIS processing times page.
Who receives Form I-766
Form I-766 is issued to individuals across a range of immigration categories who have applied for and received approval of employment authorization. Each category carries a specific code printed on the card. Categories frequently associated with EAD issuance include:
- Adjustment of status applicants (category C09). Individuals who have filed Form I-485 to apply for a Green Card may receive an EAD, allowing them to work while the Green Card application remains pending.
- F-1 OPT students (categories C03A/B and C03C). Students on F-1 visas authorized for Optional Practical Training receive an EAD. STEM degree holders may receive a 24-month extension under category C03C.
- H-4 visa holders (category C26). Qualifying spouses of H-1B visa holders who meet applicable eligibility conditions receive an EAD under this category.
- Asylees and refugees (categories A05 and A03). Individuals with asylum or refugee status are eligible for an EAD under these respective categories.
- DACA recipients (category C33). Individuals granted Deferred Action for Childhood Arrivals status receive an EAD under category C33.
It is worth noting that some immigrants are authorized to work incident to their status — meaning their visa or status itself confers work authorization without a separate EAD application. This includes holders of H-1B, L-1, and E-2 visas, among others. For those individuals, Form I-766 is not required. For individuals in categories such as H-4 or F-1, however, the EAD must be proactively applied for before work may begin — and the card must be presented to employers as proof of authorization during the Form I-9 employment eligibility verification process.
What the card contains
Form I-766 includes the holder’s full legal name, date of birth, photograph, Alien Registration Number (A-number), eligibility category code, card number, and validity and expiration dates. It is designed with security features including holographic images and a machine-readable zone that allows for rapid identity verification. These features are intended to prevent counterfeiting and unauthorized reproduction.
Uses beyond employment
While employment verification is the primary function of the EAD, Form I-766 is accepted for several additional purposes. The Transportation Security Administration recognizes it as a valid identification document for domestic air travel. It may be used to establish identity when applying for a driver’s license at the Department of Motor Vehicles, when opening a bank account, and when applying for a Social Security card alongside other required documentation.
Validity and what to do when the card expires
The validity period of Form I-766 depends on the holder’s immigration category and typically ranges from one to two years. The expiration date is printed on the face of the card. When the card expires, work authorization expires with it — and the holder must file a new Form I-765 to renew.
Filing the renewal application well in advance of the expiration date is essential. Given current processing times of up to 19.5 months for certain I-765 categories as of January 2026, this makes early renewal filing critical. USCIS allows renewal applications to be filed up to 180 days before the current EAD expires.
For certain eligibility categories, a timely-filed renewal may qualify for an automatic extension of work authorization while the application is pending. The conditions for this extension are specific and include requirements related to the receipt date on the Form I-797C notice, the eligibility category, and whether the category on the existing card matches the class requested in the renewal. Eligibility for the automatic extension should be confirmed directly on the USCIS automatic EAD extension page before relying on it for employment planning purposes, as category eligibility has changed in recent years — notably, H-4 EAD holders lost access to automatic extensions as of October 30, 2025.
If an EAD card is lost or stolen, a replacement may be requested by filing a new Form I-765 with the applicable fee and supporting documentation. Theft should also be reported to local law enforcement.
A note on professional support
The EAD process involves eligibility conditions that vary by immigration category, renewal timelines that have become more consequential following recent policy changes, and category-specific rules around automatic extensions that are not uniform across all holders. For individuals who are uncertain whether they need an EAD, which category applies to their situation, or how their work authorization fits into a broader immigration strategy, working with experienced immigration counsel is a practice frequently associated with greater clarity and fewer disruptions to employment eligibility.
David Weber is an experienced writer specializing in a range of topics, delivering insightful and informative content for diverse audiences.