Excuse me, my father applied for a green card for his 23-year-old son, and the form 130 has been approved. How long will it take him to get a visa to the United States in China?

It usually takes five to seven years from applying for a green card to receiving an interview notice from China. I waited for seven years myself. If you become an American citizen during this period. If you want to apply for naturalization again, you will generally inform the country within two years. In order not to affect the pre-interview processing in China, as long as you remember the notarization, you must never get a marriage certificate, otherwise it will only delay the background check for a longer time.