IR-3 (Immediate Relative) evcerpt frm US State Department's INTERNATIONAL ADOPTION page

Orphans are issued IR-3 or IR-4 visas:

• IR-3 visas are for orphans who had a full and final adoption overseas by both adopting parents, when both parents physically saw the child prior to or during local adoption proceedings and where the state where they reside does not require re-adoption in the U.S.
• IR-4 visas are for orphans whose prospective adopting parents' have legal custody for purposes of emigration and adoption and who have satisfied any applicable state pre-adoption requirements.

Naturalization: Orphans under the age of 18 and admitted to the U.S. based on a properly issued IR-3 visa automatically acquire U.S. citizenship as of the date of admission to the United States. The CIS Buffalo office reviews IR-3 packets and automatically sends Certificates of Citizenship to eligible children without requiring any additional forms or fees. See the State Depatments flyer on the Child Citizenship Act of 2000 for further details.