Can I travel within the USA only with the I-551 stamp from passport?

I came to United States 1 month ago as a F-25. Right now I'm in Puerto Rico but my boss wants me to visit him in Boston to go shopping gadget, and then my uncle wants me to visit him in Minneapolis, the thing here is that my green card have not been sent yet, and I don't have it, but I do have a stamp in the passport ( I-555 if I remember ) that is valid through 1 year, while the green card is being processed.
Won't I have any issues traveling to another state while the GC is being processed?
By the way, I am 17 years old.
Best Answer
phoog is right that you are not considered to be entering the US between Puerto Rico and the US, even though there might be immigration checks where you just have to prove that you're legal.
However, I want to point out that even if you were leaving the US and re-entering the US, you can do that freely without any worries. The moment you entered the US with an immigrant visa, you became a US permanent resident. The immigrant visa you used to enter the US automatically turned into an I-551 (proof of permanent residency) valid for one year from the date of entry. A plastic "green card" is also just an I-551. You don't need to wait for the plastic card I-551, because you already have in your hand another I-551. All types of I-551 are equally valid for travel, work, and other purposes.
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Can you travel within the US without a green card?
As the list indicates, the TSA accepts a variety of forms of documentation for domestic flights. Notably for many foreign nationals, permanent resident cards and employment authorization cards are both acceptable forms of documentation for domestic flights.Can a permanent resident travel within the US without a passport?
Domestic Travel Tips Green card holders traveling domestically in the U.S. should always have a photo ID, such as a driver's license, in order to avoid any potential confusion. Green card holders do not need to carry a passport for domestic travel within the United States.Can I travel with a passport and no green card?
To travel, you usually need your permanent resident card, a valid passport, and whatever visas are required by the country you intend to visit. While the US does not require permanent residents to have a valid passport to re-enter the US, foreign countries and airlines require you to have a passport.What is passport temporary I-551 stamp?
What Is a Temporary Stamp? I-551 temporary evidence stamps are offered to prove someone has permanent resident status while they wait for their new green card. There are three main reasons an immigrant to the United States would be granted temporary status by United States Citizenship and Immigration Services (USCIS).Lilly Legal | Tuesday Immigration Tips | Traveling with Temporary I551 Stamp with Pending Green Card
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