A green card is a common term for a Permanent Resident Card granted to a foreign individual by U.S. Citizenship and Immigration Services (USCIS). The green card gives an authorization to live and work in the U.S. on a permanent basis without restrictions. In particular, an immigration officer cannot deny your entry into the U.S. if you present your foreign passport and a Permanent Resident Card. The usual means of entering the U.S. is by air.
Show your green card to an airline representative when you register for a flight to the USA.
Fill out the U.S. Customs declaration during your flight. A flight attendant will provide a blank form for you.
Decline the form I-94 (Arrival/Departure Record) when a flight attendant tries to give it to you. The I-94 is the major document when you enter the U.S. with a non-immigrant visa, but green card holders do not need it.
Enter the passport control area when you arrive at the airport terminal.
Get into the line marked "U.S. Citizen/Permanent Residents."
Give your passport, green card and the Customs form to an immigration officer at the inspection desk.
Prepare to answer simple questions such as, "Where do you live/work in the U.S.?" You will also be fingerprinted, and the officer will stamp your passport and the Customs form with the arrival date.
Claim your luggage and proceed to the Customs inspection area.
Give the Customs form to a Customs officer.