Who qualifies for the K-3 visa?
The spouse of a U.S. citizen and his or her child(ren) under the age of 21 who is the beneficiary of an immediate relative petition filed with the U.S. Citizenship and Immigration Services (USCIS) and who is still waiting for the petition to be approved and the immigrant visa to be issued. Note: The child of a U.S. citizen will only qualify for a K-4 visa if he or she has no claim to U.S. citizenship and his or her alien parent qualifies for a K-3 visa.