What is an RFE? A Request for Evidence (RFE) is simply a written request by the government for more documentation to help make a decision on a green card application. We've prepared a comprehensive guide here. Related articles What are typical types of RFEs? How do I upload photo evidence? What are the requirements for the passport-style photos? Can I take copies of documents to my green card interview or do they need to be original? Is applying for the work permit a mandatory requirement with a marriage green card application?