If you want to extend your stay in the United States longer than the date indicated on the lower right-hand corner of your Form I-94, Arrival-Departure Card, you must file an I-539 Application with the Bureau of U.S. Citizenship and Immigration Services (USCIS) before your authorized stay expires.
Generally, you may apply to extend your stay if you lawfully traveled to the United States on a temporary visa and were lawfully admitted, your temporary visa status remains valid, and you have not committed any crimes that make you ineligible to extend your stay.
If your application for an extension is approved, you will be issued a replacement I-94 with a new departure date. If your application is denied, your original I-94 will be returned to you with a request for your immediate departure from the United States.
Not all temporary visa holders are eligible to extend their stays. You may not extend your stay in the United States if you are a:
You must submit your application for an extension of stay before your authorized stay expires. It is best to file your application with USCIS at least 45 to 60 days before your authorized stay expires.
If you fall within any of the following categories of nonimmigrants, you must file Form I-539, Application to Extend/Change Nonimmigrant Status with the USCIS Service Center with jurisdiction over the place you are staying:
If you fall within any of the following categories of nonimmigrants, your employer must file, Form I-129, Petition for a Nonimmigrant Worker with the USCIS Service Center with jurisdiction over the place you are working:
If you file Form I-539 to extend your stay, you should include your spouse and any unmarried children under the age of 21 in your application. You may include your spouse and children on your application if they are in the same nonimmigrant category as you or if they were given derivative nonimmigrant status based on your status.
If your employer files Form I-129, Petition for a Nonimmigrant Worker for you, then your spouse and child should file Form I-539, Application to Extend/Change Nonimmigrant Status. Both applications for extension of stay - your Form I-129 and the Form I-539 for your spouse and children - should be filed at the same time.
If you are applying for an extension of stay but your authorized stay has already expired, you must prove:
U.S. Dept. of State - Duration and Extension of Stay in the U.S.
USCIS Guide - How Do I Extend My Nonimmigrant Stay in the United States (PDF)
CRS Report - Nonimmigrant Overstays: Brief Synthesis of the Issue - May 22, 2006 (PDF)
CRS Report - Criminalizing Unlawful Presence: Selected Issues - May 3, 2006 (PDF)
CBP Memo - Policy Pertaining to Correction of Erroneous I-94 Cards - March 23, 2005 (PDF)
INS Memo - Interpretation of "Period of Stay Authorized by Attorney General" - March 27, 2003 (PDF)