The K-1 Nonimmigrant Visa allows U.S. Citizens to facilitate the entry of their Fiancé or Fiancée to the United States to conclude a valid marriage. The process requires the U.S. Citizen to file a petition with U.S. Citizenship & Immigration Services (USCIS). Upon petition approval, the Fiancé(e) is required to appear for a visa interview at the U.S. Embassy/Consulate in their home country. Important facts about the K-1 Visa classification include the following: