Download a PDF filler application to your device, if necessary. US Passport or US Passport Card 2.Employers are mandated to review acceptable I-9 identity and employment eligibility documents for each employee and complete Form I-9. The form is fillable. Gather your proof of identity and authorization to work in the US. Acceptable proof documents are listed on page 4. List A includes documents that verify both identity and employment eligibility. Please ensure all REQUIRED documents are filled out accurately before submitting them for processing. Form I-9, Employment Eligibility Verification is a USCIS form that all employers and employees must fill out upon establishment of employment. Complete all sections on your application and attach proof documents. d. Case No. — Enter the TIERS case number of the person.