Tools USCIS will conduct system maintenance to the Contact Relationship Interface System (CRIS) on Wednesday, Sep. 22, at 11:30 p.m. through Thursday, Sep. 23, at 3:00 a.m. Eastern. Topics USCIS Tools and Resources Our online tools and resources can deliver the information you need without having to call us or visit a field office. Explore My Options Tell us a little about yourself so that we can present you with immigration options for which you might be eligible. Case Status Online Track the status of an immigration application, petition, or request. Change of Address You must keep your address current with us to ensure you receive all correspondence and benefits from us in a timely manner and avoid possible delays related to your case. Multilingual Resource Center This page offers information in several languages on a variety of topics. Reports and Studies This section contains reports, studies, and data on various aspects on USCIS operations.