A required piece was missing from your I-601A, often proof that you paid the State Department immigrant visa fee, a copy of the approved I-130 or I-140, or proof that your qualifying relative is a citizen or resident. Send exactly what the notice asks before the deadline.
In general, on any form:
USCIS mailed a notice asking for evidence that should have come with your filing. Something required was missing from the start, such as a document, photo or signature. The notice says what to send and the deadline. Answering on time keeps your case moving.
A required piece was missing from your I-601A, often proof that you paid the State Department immigrant visa fee, a copy of the approved I-130 or I-140, or proof that your qualifying relative is a citizen or resident. Send exactly what the notice asks before the deadline.
Initial evidence is something required with the original filing. An RFE asks for extra proof the officer needs.
Send what you have with an explanation and proof you tried to get the rest.
Usually yes. Not responding by the deadline often leads to denial.
The typical range published by USCIS is 28 to 32 months. It depends on the office and your case; it is not an exact date.
AI-assisted explanation based on the official USCIS status, reviewed by CaseAlerta. Not legal advice. Times are typical ranges, never an exact date.