What is the immigration process in the United States?

On the plane to the United States, passengers will receive and ask to fill in two forms, one is the I-94 departure record and the other is the customs declaration form. I-94 needs to be filled out by everyone, and the customs declaration form only needs to be filled out by one family. I-94 is relatively simple, mainly filling in name, date of birth, passport number, nationality, etc. It has two parts with similar contents. The first half is kept by the immigration officer when entering the country. When you enter the country, the second half will be torn off and set on the next page of your passport visa page, which will indicate the time you can stay in the United States. The customs declaration form is complicated, and the contents to be filled in mainly include name, date of birth, passport number, issuing country of passport, date and place of visa issuance, flight number, flight date, boarding country, country of residence (referring to country of permanent residence), address of the first night in the United States, telephone number, email address, etc. In addition, you need to choose whether to bring some items that are not allowed to be brought into the United States, such as animals and plants, meat and so on. ; Whether the cash carried exceeds USD 654.38+USD 00,000; Will you leave some items in the United States when you leave the country, what is the value of these items, and so on. For these projects, you can generally choose "No". Sign your name and date at last. All contents except signature are required to be filled in in English capital letters. The first step for tourists to enter the country is to give their passports, I-94 and customs declaration forms to the immigration officer. The immigration officer will only leave the upper part of I-94, nail the lower part to your passport and return it to you together with the customs declaration forms. Before handing in his passport, he usually asks all kinds of questions, such as why you came to the United States, how long you plan to stay, where you plan to live in the United States and so on. After meeting with immigration officials, you will collect all your checked baggage and go through customs clearance. Customs clearance means giving the customs declaration form to the customs officer, who will usually ask you how much cash you have and what's in your luggage. If you suspect that the passenger has something you don't need to carry, he will ask you to go to the designated passage for further inspection. If the customs officer gives you clearance, you need to transfer in the United States, and you can check your luggage again according to the airport instructions. After that, you can wait until the scheduled terminal with your carry-on luggage, air ticket and documents for boarding and security check again, and then board the plane at the designated boarding gate.