If you are looking for information on when to complete USCIS Form I-539, here are a few relevant points:
1. Change of Nonimmigrant Status: You need to complete Form I-539 if you are currently in the United States and wish to change your nonimmigrant status to a different category. This could include changing from a student visa (F-1) to a tourist visa (B-2) or from a tourist visa to a work visa (H-1B).
2. Extension of Stay: If you are already in the United States on a nonimmigrant visa and wish to extend your stay beyond the authorized duration, you will need to file Form I-539 to request an extension. This typically applies to individuals on tourist visas or work visas who want to prolong their stay.
3. Dependents: If you are the dependent of a primary nonimmigrant visa holder (such as an F-1 student or an H-1B worker) and want to extend or change your status independently, you will need to file Form I-539.
4. Filing in a Timely Manner: It's important to file Form I-539 within the specified time frame to ensure your application is considered. USCIS advises submitting it well in advance of your authorized stay expiration to allow time for processing.
5. Biometrics Appointment: In most cases, USCIS requires applicants filing Form I-539 to attend a biometrics appointment where your fingerprints, photograph, and signature will be taken. Make sure to follow the instructions provided by USCIS regarding the appointment.
Remember, the information provided here is general, and it's crucial to consult official USCIS guidelines and instructions specific to your situation to ensure accurate and up-to-date information.