You, the U.S. citizen sponsor, must file Form I-129F, Petition for Alien Fiancé(e), with the USCIS office that serves the area where you live. See Direct Filing Addresses for Form I-129F, Petition for Alien Fiancé(e)for information on where to file the petition. Further information is available on the USCIS website under Fiancé(e) Visas. Note: Form I-129F cannot be filed at a U.S. Embassy, Consulate, or USCIS office abroad. After USCIS approves the petition, it is sent to the National Visa Center (NVC) for processing, and NVC will send it to the U.S. Embassy or Consulate where your fiancé(e) will apply for a K-1 nonimmigrant visa.