Oklahoma Form I-9, also known as the Employment Eligibility Verification form, is a crucial document used to verify the identity and employment authorization of individuals hired for employment in the United States. The purpose of this form is to ensure that employers hire individuals who are legally authorized to work in the country. The Oklahoma Form I-9 is mandatory for all employers in the state of Oklahoma, regardless of their size or industry. It is administered by the U.S. Citizenship and Immigration Services (USCIS), an agency within the Department of Homeland Security (DHS). Keywords: Oklahoma Form I-9, Employment Eligibility Verification, identity verification, employment authorization, United States, legally authorized to work, employers, state of Oklahoma, U.S. Citizenship and Immigration Services, Department of Homeland Security. There are no known specific types of Oklahoma Form I-9. However, it is important to note that the Form I-9 has been revised over the years. Employers should always use the most current version of the form to ensure compliance. As of the date of this content creation, the latest version is the Form I-9, dated 10/21/2019. Keywords: revised versions, current version, Form I-9, compliance, USCIS, Department of Homeland Security.