The US F1 student visa is a non-immigrant visa issued to international students to enter the United States and study in US-based universities certified by Student and Exchange Visitor Program (SEVP).
A student can apply for the F-1 Visa only after the application is accepted by an accredited United States Institution. There is no limitation on F-1 Visa, and students who successfully fulfill the required criteria can get Visa. Students can also change their school if they get a better option. The students are also allowed to work by complying with specific rules and regulations.