E-Verify is a web-based system used by employers to identify whether or not an employee is eligible to work in the United States. It compares information from an employee’s Employment Eligibility Form (I-9)
to data from the U.S. Department of Homeland Security and Social Security Administration records.
E-Verify is typically used by employers voluntarily, although some employers are required to use E-Verify by state or national law. The system is operated by the U.S. Department of Homeland Security in connection with the Social Security Administration.