Integrate with the E-Verify Web Services API to automate case creation and status polling from an HRIS

Steps

1. Apply to DHS for E-Verify Web Services access; upon approval, receive the Interface Control Agreement (ICA) which contains the technical specifications, WSDL or REST schema, and test environment credentials.
2. Implement the software interface per the ICA, extracting Form I-9 data from your HRIS and transmitting it to E-Verify using either the SOAP or REST communication protocol as supported.
3. Test all case creation, status query, and case closure flows thoroughly in the E-Verify test environment before requesting production access.
4. In production, create E-Verify cases automatically when a new hire completes Form I-9 Section 2, passing the employee's document type, document number, and personal data fields as required by the ICA.
5. Poll the case status endpoint at appropriate intervals to retrieve case results and propagate them back to the HRIS employee record.
6. Implement handlers for all possible case result codes including Employment Authorized, TNC, Final Nonconfirmation, and DHS or SSA referral states.