The USCIS I-864 form, also known as the Affidavit of Support, plays a crucial role in the immigration process for family members seeking to become permanent residents in the United States. This form is designed to ensure that the immigrant will not become a public charge, meaning they will have adequate financial support upon arrival. It requires a sponsor, typically a U.S. citizen or lawful permanent resident, to demonstrate their ability to support the immigrant at a level above the federal poverty guidelines. The sponsor must provide detailed information about their income, assets, and household size, along with supporting documentation to verify their financial stability. Additionally, the form outlines the sponsor's legal obligations, which include maintaining financial support for the immigrant until they become a U.S. citizen or can be credited with 40 quarters of work. Understanding the I-864 is essential for both sponsors and immigrants, as it sets the foundation for a successful transition into life in the United States.