Hi, I got my citizenship through naturalization. Currently I am in the process to fill out I-130 form for my parents. I have 2 questions regarding the I-130 form: 1. Item 10 is Alien Registration Number. Since I am already a citizen, do I need to fill out my A# there? 2. Item 13 under the naturalization check point, it asks to give certificate number of citizenship. On my Certificate of Naturalization form, there are two numbers. One is the A# (INS Registration Number) which is the same as my Alien Registration A#. The other is on the up right side of my certificate, something like No. XXXXX. My guess is that the second number is used by the local office. Shall I fill out my A# or the other number there? Thanks again for your help!