Providing the necessary documentation is a crucial part of getting a U, along with filling out forms and going to interviews. A. visa. A unique set of documents is needed explorer slots apkfor each type of visa, and these can be submitted online in advance or during the interview. A current passport, DS-160 confirmation page, receipt for visa fee payment, required photos, & any other documents specific to your visa type—such as acceptance letters for student visas or proof of employment for work visas—are frequently needed.