National Visa Center
The National Visa Center (NVC) is a center that is part of the U.S. Department of State that plays the role of holding United States immigrant visa petitions (as well as Form I-129F petitions for K-1/K-3 visas) approved by the United States Citizenship and Immigration Services until an immigrant visa number becomes available for the petition, at which point it arranges for the visa applicant(s) (the petition beneficiaries) to take the visa interview at a consulate abroad. It is located in Portsmouth, New Hampshire. It was established in 1994 on the site of an Air Force base that was closed down by the Pentagon.