E-Verify is a free federal system that lets employers check new hires' work authorization against Social Security and DHS records. It is currently mandatory for federal contractors and required by law in roughly 22 states for some or all employers; voluntary elsewhere.
Federal mandate proposals would phase in universal E-Verify for all U.S. employers. Defenders argue mandate would shut off the magnet of unauthorized employment, the largest driver of unauthorized migration. Critics argue mandate harms small businesses, generates false-non-confirmations especially against minority workers, and pushes employment further into cash economy.