I am filing I-130 online and can't find P51 for class of admission (Thats my code on my GC). Can I leave it blank? Or can i use a different code but with the same description (F41/F46) or it must match my GC? I want to try to avoid going out to the postal office during this coronavirus situation.
"P51" is indeed a brother or sister of a US citizen - I assume you are a US citizen yourself by now.
Avoid filing an I-130 "online" - if you still do, then you'd simply be "asking for it" and will only have yourself to blame for what is undoubtedly expected to ensue.
You don't have to go to the post office. This one is best filed by a bonded courier anyway and could have a FedEx, UPS or even DHL envelope(s) mailed to your address. You'd sanitize/wife/wash your hands after receiving & sending - with signature tracking receipt. Keep copy for your records.
I agree with my colleague. Please see https://www.avvo.com/legal-guides/ugc/green-cards-for-family-members
P51 is a brother or sister of a US Citizen prior to 1991. Hopefully you are now a US Citizen yourself by now.
