term:

Aos

aos

Affidavit of Support, Form I-864. A document promising that the person who completes it will support an applicant financially in the United States. Family and certain employment immigration cases require the I-864 Affidavit of Support, which is legally binding. All other cases use the I-134 Affidavit of Support. Go to I-864 General Information & Frequently Asked Questions to learn more.

Source: Department of State. March 2007.