Enroll as a USCIS E-Verify Web Services employer agent and create employment eligibility cases via the SOAP API

Steps

1. Complete E-Verify enrollment at e-verify.gov as an Employer Agent (not an individual employer) and sign the Memorandum of Understanding (MOU).
2. Submit a Web Services access request through your E-Verify account; USCIS will provide an Interface Control Agreement (ICA) containing the WSDL, XSD schemas, and test environment credentials.
3. Develop a SOAP client using the provided WSDL; the core operation is CreateCase, which accepts employee I-9 data fields (name, DOB, SSN, document type and number, hire date) and returns a CaseNumber.
4. Poll GetCaseStatus using the returned CaseNumber; valid terminal statuses include Employment Authorized, DHS Tentative Nonconfirmation (TNC), SSA Tentative Nonconfirmation, and Case in Continuance.
5. For a TNC result, notify the employee within the required timeframe; if the employee contests, call ReferCase to refer to DHS or SSA, then continue polling for Final Nonconfirmation or Employment Authorized.
6. In production, request production credentials from USCIS after completing integration testing in the test environment; production cases must be created no later than the third business day after the employee's first day of employment.