An authorized COMPANY REPRESENTATIVE (not the employee) must complete this form. • Provide the PA employer code: 10574.On ______, I asked my employer to give me a letter. The form is used to document verification of the identity and employment authorization of each new employee (both U.S. citizen and noncitizen) hired after. A: General Instructions for Completing the Form. 1. Mark which activity(ies) you are participating in. 2. Use Form I9 to verify the identity and employment authorization of individuals hired for employment in the United States. Include the full name of the employer or authorized signatory, along with their title (if applicable). You must verify that the employee is an alien who can legally work. You must verify that the employee is an alien who can legally work.