American immigration policy requires

1. You must live in the United States continuously for five years after obtaining permanent residency. This is the minimum residence period for naturalization. Within five years, you can't leave the United States for more than six months in a row. If it is more than half a year, you must provide proof that you have no intention of giving up your right of abode in the United States.

2. A foreign citizen who marries an American citizen must remain married for two years before both husband and wife can apply to the Immigration Bureau for immigration and naturalization in the United States. The new immigration law stipulates that foreign citizens who are married to American citizens or permanent residents should apply for naturalization as soon as possible as long as they meet the conditions for applying for American citizenship, so as to become American citizens as soon as possible and enjoy all the rights as American citizens. But the prerequisite must be a marriage relationship that lasts for more than two years.

3. Applicants for naturalization must be at least 18 years old. Foreigners under the age of 16 who have permanent residency in the United States, whose parents have acquired American citizenship, can automatically acquire American citizenship with their parents. However, children aged between 16 and 18 must apply for naturalization independently. If the child is under the age of 18, and one parent is an American citizen and the other parent is a foreigner, before the child reaches the age of 18, the parent with American citizenship can apply for naturalization on his behalf.

You must have basic English reading, listening, speaking and writing skills. Applicants for naturalization should have a certain understanding of English and have a certain English ability.