Students in F-1 status are admitted to the U.S. for “D/S” (duration of status). This means that your permitted stay in the U.S. depends on your staying in compliance with F-1 regulations.
Key aspects of F-1 status include (1) enrolling in full-time status for each required semester, (2) keeping your immigration documents current and valid, (3) keeping your SEVIS record up-to-date, and (4) working only within the limits permitted for F-1 students.