It is still usable during the authorized period.
But because you are not graduated, you still need to do everything with ISO's approval, including registration, full-time student, maximun work hours (20hrs, unless you get ISO's approval that ISO agree you can work full-time), also need ISO's approval to work out-of-state. Only after you graduate, you don't need to care about ISO.
But because you are not graduated, you still need to do everything with ISO's approval, including registration, full-time student, maximun work hours (20hrs, unless you get ISO's approval that ISO agree you can work full-time), also need ISO's approval to work out-of-state. Only after you graduate, you don't need to care about ISO.