Also known as the Employment Eligibility Verification form. Under the Immigration Reform and Control Act of 1986 (IRCA), all US employers must complete and maintain a Form I-9 for all individuals hired to work in the US. The form is designed to verify employee identity and eligibility to work in the US and must be completed for both US citizens and noncitizens. Form I-9 and information on Employment Eligibility Verification is available from US Citizenship and Immigration Services.

US Immigration and Customs Enforcement, an agency within the Department of Homeland Security, is responsible for enforcing employer compliance and may inspect and audit employers' I-9 records. Employers that violate IRCA may be subject to civil or criminal penalties (see IRCA Violations: Employer Liability Assessment Chart and Practice Note, Demonstrating the Right to Work in the United States: Financial and Criminal Sanctions for IRCA Violations).

For more information on Form I-9 requirements, see Completing Form I-9 for Employees Checklist and Practice Notes: