Employers use Form I-9 to verify the identity and employment authorization of individuals hired for employment in the United States. All U.S. employers must properly complete Form I-9 for each individual they hire for employment in the United States. This includes citizens and noncitizens. Both employees and employers (or authorized representatives of the employer) must complete the form.

On the form, an employee must attest to his or her employment authorization. The employee must also present his or her employer with acceptable documents evidencing identity and employment authorization. The employer must examine the employment eligibility and identity documents an employee presents to determine whether the documents reasonably appear to be genuine and to relate to the employee—and then record the document information on the Form I-9.

The list of acceptable documents can be found on the last page of the form. Employers must retain Form I-9 for a designated period and make it available for inspection by authorized government officers.

In the state of Mississippi, as in all other states, employers are required to use Form I-9 to verify the identity and employment authorization of every individual they hire for employment in the United States, which includes both citizens and noncitizens. The process mandates that employees provide documentation that attests to their employment authorization and identity. Employers are responsible for reviewing these documents to ensure they appear genuine and correspond to the individual presenting them. The information from these documents must be recorded on the Form I-9. Employers in Mississippi must keep completed Forms I-9 on file for a certain period of time and must present them for inspection upon request by authorized officials from the Department of Homeland Security, Department of Labor, or the Immigrant and Employee Rights Section (IER). The specific retention period for Form I-9 is either three years after the date of hire or one year after employment is terminated, whichever is later. Compliance with these requirements is enforced under federal law by the U.S. Citizenship and Immigration Services (USCIS), and failure to comply can result in legal penalties.