What is required alongside E-Verify enrollment?

The requirement of Form I-9 alongside E-Verify enrollment ensures that employers are compliant with immigration laws regarding employment eligibility verification. The Form I-9 must be completed for each employee to confirm their identity and work authorization in the United States. By having this form on file, employers can provide the necessary documentation to E-Verify, which electronically verifies the information provided by the employee against government records.

Form W-2, Form 1099, and Form DS-156 are not part of the E-Verify process. Form W-2 is used for reporting wages paid to employees, Form 1099 is for reporting various types of income other than wages, and Form DS-156 is a visa application form. None of these forms pertain to the initial employment eligibility verification required by E-Verify, which focuses on the completion and accuracy of Form I-9. Therefore, having Form I-9 is critical to the E-Verify process, making it the correct answer.