E-Verify is a free, online government system used by about 1.4 million U.S. employers to verify work eligibility by matching employee documents with federal records. Established in 1996, it’s mandatory in 23 states for some employers but voluntary elsewhere. In 2024, it conducted 43.5 million checks, confirming 98.3% of workers automatically. Despite occasional controversies, experts see it as a key tool for validating employment eligibility.

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