For many professionals in South Korea, the idea of immigrating to the United States through the National Interest Waiver (NIW) process can feel overwhelming. While much of the attention often goes toward getting the I-140 petition approved, fewer people know what happens afterward.
One area that causes confusion is the temporary proof of permanent residency given at the airport. This is called the I-551 stamp, also known as the ADIT stamp. Understanding this stamp is important, especially for those who are planning to move shortly after visa approval.
What Is the I-551 Stamp?
The I-551 stamp is placed inside your passport by a U.S. Customs and Border Protection officer when you enter the United States on an approved immigrant visa. This stamp acts as temporary proof of your lawful permanent resident status. It has the same legal status that comes with a plastic green card.
In other words, even if your physical green card has not arrived in the mail yet, the I-551 stamp shows that you are legally a green card holder.
Why Is the I-551 Stamp Important?
The stamp allows you to live and work in the U.S. immediately after entry. Most I-551 stamps are valid for one year and include your Alien Registration Number (A-number) and the date of your entry. You can show this stamp to employers as part of the I-9 employment verification process, or to apply for a driver’s license, or in other legal situations where proof of immigration status is required.
When Do You Get the Physical Green Card?
After you arrive in the U.S. using your immigrant visa, the government will automatically process and mail your Form I-551 Permanent Resident Card (the green card) to the U.S. address you listed in your application. This usually happens within a few weeks to a few months.
Until then, the stamp in your passport serves as your official legal status.
Common Confusion After I-140 Approval
Many people begin thinking about their move to the U.S. after their I-140 is approved, but the details of what you receive are often unclear. Some assume they will receive a green card immediately, or they are unsure whether they can work or travel after arrival. This is why understanding the I-551 stamp is so important—it prevents misunderstandings in your new life as a U.S. green card holder.
Final Thought
Immigration involves more than just legal approval—it also involves planning, timing, and understanding what to expect after each stage. If you are just starting to consider whether NIW might be right for you, it helps to begin with accurate, practical information from the start.
If you’re interested in learning more about the NIW process and how to prepare for each step, feel free to reach out for a private consultation.
Thath Kim II
US Attorney
Licensed in Oregon
11F 1108, Seocho-daero 77gil 17, Seocho-gu, Seoul, Republic of Korea 06614