Under the previous policy, applicants needed to maintain status up to 30 days before the program start date listed on their Form I-20, Certificate for Eligibility for Nonimmigrant Student Status, which required them to file extensions, or an initial COS and subsequent extensions ensuring that they would not have a “gap” in status.
To prevent a “gap” in status, USCIS will grant the change of status to F-1 effective the day we approve an applicant’s Form I-539, Application to Extend/Change Nonimmigrant Status. If we approve an application more than 30 days before the student’s program start date, the student must ensure they do not violate their F-1 status during that time. An example of a violation would be engaging in employment, including on-campus employment, more than 30 days before the program start date as listed on their Form I-20.