Several of the customer service tools on the U.S. Citizenship and Immigration Services (USCIS) website will be unavailable on Saturday, March 6.
USCIS will once again be performing maintenance work on its electronic system. This time, the service interruption will be from 5 a.m. to 6 p.m. (Eastern Time).
During this time, the following web site tools will be available www.uscis.gov will not be available:
Status of my case
On-line consultation (E-request)
Online address change
FOIA request status check
Forms by mail