USCIS Website System Maintenance on Sunday, April 8

On April 5, 2018, the United States Citizenship and Immigration Services announced that it will conduct system maintenance on April 8, 2018, from 5 AM until 6 PM (EST) [PDF version]. The USCIS stated that some of its online tools may be unavailable during the system maintenance. These tools include the:

Check My Case Status;
e-Request;
Change of Address Online;
Check Processing Times;
Civil Surgeon Locator;
FOIA Status Check;
Office Locator; and
Forms by Mail.

Those who are currently using these or other online services on the USCIS website should account for the possibility that some or all of these services may be down during the day on Sunday, April 8.