Generally, the application requires detailed information about the alien's native residence, place of employment, reason for traveling to the United States, and destination.
Aliens use specific procedures for the particular visa sought.
Over half of all visas require supporting documents at the time of application. For example, an alien hoping to work temporarily in the United States as a registered nurse needs an employer's petition to obtain an H-1A visa. Similarly, an alien planning to study at a university must present proof of acceptance at the university for an F-1 visa. In all cases, consular officials make the final decision. Generally, no judicial review is available.