Immigration and Nationality Act (INA): Primary federal immigration law that contains Section 213A specifically dealing with Affidavits of Support and requirements for financial sponsorship of immigrants

Code of Federal Regulations (8 CFR ยง 213a): Federal regulations detailing specific requirements for Affidavits of Support, including income requirements and eligibility criteria for sponsors

USCIS Forms Requirements: Guidelines for Form I-864 (Affidavit of Support), Form I-864EZ (Simplified version), and Form I-864A (Contract Between Sponsor and Household Member)

Federal Poverty Guidelines: Annual poverty guidelines established by HHS, requiring sponsors to demonstrate income at 125% above poverty level for qualification

Social Security Act: Legislation relevant for determining qualifying income and benefits for sponsor verification purposes

Internal Revenue Code: Tax regulations governing income verification standards and tax return requirements for sponsors

Personal Responsibility and Work Opportunity Reconciliation Act of 1996: Law governing immigrants' eligibility for public benefits and establishing sponsor's obligations and liability