The chart below shows which USCIS service centers currently process each type of form. This is subject to change, depending on USCIS service centers' workload.Search all USCIS forms. File your form online for a more convenient and secure experience. Customers applying for a UK Visa from the USA may visit one of over 130 USCIS Application Support Centers to provide their biometric information. You may also fill out this form online at the Family Support Center Website. No. It sounds like you are applying for an immigrant visa. However, you must be at least 18 years of age and have a residence (domicile) in the U.S. before you can sign the Affidavit of Support (Form I-864 or I-864EZ). Learn about Sponsoring an immigrant on Arizona today. Quickly find answers to your Sponsoring an immigrant questions with the help of a local lawyer.