What do I do if my green card was lost or stolen? Form I-90 will need to be completed to replace a stolen or lost green card. We’ve put together this comprehensive guide about what to do if a green card gets lost or stolen. Related articles Can I submit my marriage green card application to USCIS online? How do I know if I'm eligible for naturalization if I'm married to a legal permanent resident? Can someone have multiple green card applications at the same time?