
I-601 is a type of US immigration hardship waiver available to certain intending immigrants who would be otherwise inadmissible to the United States for, among other things, unlawful presence (ULP), overstay, fraud, or misrepresentation. The i-601 inadmissibility waiver is filed with USCIS on form i-601 and must be accompanied of documentation proving that a qualifying relative would suffer extreme hardship if the immigrant visa or green card was not approved.