If you are issued a K-1 visa after the interview, the Consular Office will give you your passport containing the K-1 visa and a sealed packet containing the civil documents you provided, plus other documents prepared by the U.S. Embassy. It is important that you do not open the sealed packet. Only the Department of Homeland Security (DHS), U.S. Customs and Border Protection (CBP) immigration official should open this packet when you enter the United States. As the K-1 visa holder, you must enter the United States either before or at the same time as any qualifying children holding K-2 visas.
With your visa, you can apply for a single admission at a U.S. port-of-entry within the validity of the visa, which will be a maximum of 6 months from the date of issuance. You must marry your U.S. citizen fiancé(e) within 90 days of your entry into the United States.
Entering the United States: Port of Entry
A visa allows a foreign citizen to travel to the U.S. port-of-entry and request permission to enter the United States. You should be aware that a visa does not guarantee entry into the United States. The Department of Homeland Security (DHS), U.S. Customs and Border Protection (CBP) officials have the authority to permit or deny admission to the U.S. Upon arrival at the port-of-entry, be prepared to present to the CBP officer your passport with visa and your unopened/sealed packet containing your documents. Travelers should review important information about admissions and entry requirements on the CBP website under Travel.
Adjustment of Status, Working in the United States, and Traveling Outside of the United States
Information for K-1/K-2 visa holders about adjustment of status, permission to work in the United States, and travel outside of the United States is available on the USCIS website under Fiancé(e) Visas.
How to Apply for a Social Security Number Card
When You Are a Permanent Resident
Coming to the United States to live permanently, you will want to learn more about your status as a Lawful Permanent Resident. See Welcome to the United States: A Guide for New Immigrants to review information on the USCIS website about living in the United States.