After you have completed the steps on the Immigrant Visa Process on usvisas.state.gov, including paying the necessary fees and submitting the required immigrant visa application form (DS-260), Affidavit of Support, and supporting documents to the National Visa Center (NVC), they will review your file for completeness. Once your case becomes qualified for an interview, NVC will work with us to schedule an interview appointment for you.
You can learn more about the interview process on usvisas.state.gov.
All visa interviews at the U.S. Embassy in Singapore are handled on an appointment basis only. Individuals seeking general information about U.S. visas or needing to schedule a visa appointment should visit the U.S. Visa Information Service for Singapore or you may call +65 3158 5400 (8:00 am to 8:00 pm) from Singapore or 703 520 2238 if you are in the United States. You may also email your questions to support desk.