Form Guides
Plain-language guides to the forms people ask about most — what they're for, what to prepare, and what trips people up.
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Form I-129F: Petition for Alien Fiancé(e)
Filed by a U.S. citizen to bring a fiancé(e) to the U.S. on a K-1 visa for marriage within 90 days of arrival.
I-130Form I-130: Petition for Alien Relative
The starting point for most family-based immigration — filed by a U.S. citizen or permanent resident to establish a qualifying relationship with a relative.
I-131Form I-131: Application for Travel Document
Used to request advance parole (permission to travel and return while a green card application is pending) or a re-entry permit for existing permanent residents.
I-485Form I-485: Application to Register Permanent Residence (Adjustment of Status)
The application to become a permanent resident (get a green card) from inside the United States, without leaving the country.
I-751Form I-751: Petition to Remove Conditions on Residence
Filed by conditional permanent residents (typically from a marriage under 2 years old at green card approval) to convert to a full 10-year green card.
I-765Form I-765: Application for Employment Authorization
The application for a work permit (EAD) — often filed alongside a pending green card application or another status that allows work authorization.
I-90Form I-90: Application to Replace Permanent Resident Card
Filed by lawful permanent residents to renew an expiring or expired 10-year green card, or to replace one that's lost, stolen, damaged, or contains an error.
N-400Form N-400: Application for Naturalization
The application to become a U.S. citizen — filed after meeting the required period as a permanent resident.
N-600Form N-600: Application for Certificate of Citizenship
Filed by someone who is already a U.S. citizen — through birth abroad to a U.S. citizen parent, or automatically through a parent's naturalization — to get official documentation proving it.