What procedures do new immigrants in the United States need to go through after entering the country

Never close your account. Remember, what you are about to get is a conditional green card, not to make you an American citizen. Therefore, even if you get a green card and go abroad or go to other countries, you still have to hold a China passport and prepare the application materials to apply for a visa. Only when you successfully become an American citizen will you hold an American passport and become a real American. At this time, you don't have to go to the place where your account is located, because it has no influence at all.

Although China is not allowed to have a second nationality, although the US Immigration Bureau will send a letter to the relevant authorities in China to inform you that you have become an American citizen, who cares?

Buy a plane ticket to America. Congratulations on your successful immigration! !