It is imperative that applicants familiarize themselves with the particular type of visa they are pursuing, as each category of visa has its own set of requirements and procedures. In addition, there are gre exam slotsa number of rules and guidelines that control the US visa application process, and they can change regularly. This implies that those who are considering applying for a visa need to be aware of any changes or updates to the application procedure. With comprehensive details on visa categories, application processes, and eligibility requirements, the US Department of State website is a priceless resource.