Use Form I9 to verify the identity and employment authorization of individuals hired for employment in the United States. Before an applicant can apply for a temporary worker visa, USCIS must first approve the Petition for a Nonimmigrant Worker, Form I-129.Below is an overview of a Foreign National employment appointment process along with specific steps and resources to help you navigate this process. If you choose the option in Step 2(b) on Form W-4, complete this worksheet (which calculates the total extra tax for all jobs) on only. The person that examines the original, unexpired documents in the presence of the employee MUST fill out, sign and date Section 2.