What is an American visa F2?

American visas are divided into 18 and 48 categories. Categories are sorted by English letters, from A to R, and categories are sorted by numbers under the category letters, namely A- 1, A-2, etc. , the other two categories are special visa-free, marked WB &；; WT and GB>

F2A refers to the visa for the spouse and/or children of American green card holders. U.S. green card holders apply for F2A immigration visas for their foreign spouses and unmarried children under 2 1 at the U.S. Citizenship and Immigration Office by filling in the I- 130 form.