I am a permanent resident. Recently I was doing research about how to get my citizenship. I found some informations on uscis.gov saying that someone might already be a US citizen if the person who petition for you is a citizen and you entered the US under 18 years old. My dad is a citizen, he petition for me and I was under 18 when I came to the US. Now my question is, am I a US citizen even if I'm currently using my green card? Please tell me how do I find out?

  • 1
    What is your date of birth?
    – CGCampbell
    Sep 22 '14 at 17:44
  • When did that happen?
    – littleadv
    Sep 23 '14 at 2:52

If, at any moment in time on or after February 27, 2001, you were 1) a permanent resident (doesn't matter how you became a permanent resident), 2) under 18, and 3) living in the U.S. under the custody of a U.S. citizen parent, then at that moment you automatically became a U.S. citizen, even if you didn't know it.

Here is an official reference

  • This looks like a good answer. Could you add a link to an official reference that explains this? Sep 24 '14 at 1:59
  • @GregHewgill: added
    – user102008
    Sep 24 '14 at 2:17

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