The online application Form DS-160 is used for nonimmigrant visas to the United States, such as work, study, and tourist (B1/B2) visas. It gathers necessary data, such as travel history, personal information, and the reason for the trip to the United States. Before setting up a visa interview in the United States, the form needs to be filled out and submitted online. To prevent delays or issues during the application process, information must be accurate and consistent.