When using online passport verification, the passport holder enters her passport information into the document verification service, which then cross-references the information with the U.S. Department of Homeland Security. After that, the verification service confirms whether or not the information is valid.
The user begins the process by filling out the I-9 form provided on the U.S. Citizenship and Immigration Services website. The I-9 form is a nine-page document used to verify the identity and citizenship of potential employees in the United States. The I-9 form is the mandatory first step before using the USCIS E-Verify utility for passport verification. The I-9 form is required whether or not the individual is a U.S. citizen.
After the potential employer and employee have completed the form together, the employer examines the employment authorization documents and documents of identity and checks them against the information provided in the I-9 form. If the information provided seems satisfactory and genuine, the verification process may proceed. The employer must retain a copy of the I-9 form to be presented to government officials upon request.
The employer uses the E-Verification utility provided on the USCIS website to open a case. E-Verify cross checks the information provided by the employer from the I-9 form against the U.S. Department of Homeland Security's records which include passport information, immigration records, driver's license and identity documentation, and Social Security documentation to verify the information provided.
Within seconds, results should be displayed on screen though some cases may require further action to be taken. E-Verify notifies the employer of either Employee Authorization or Tentative Non-confirmation if the information does not match.