The Immigration Reform and Control Act (Pub. L 99-603) was originally passed on November 6, 1986, in order to control and deter illegal immigration to the United States. Further modifications by the Immigration and Naturalization Act of 1990 (Pub. L 101-649) and the Illegal Immigration Reform and Immigrant Responsibility Act of 1996 (Pub. L 104-208) resulted in the requirement for employers to verify the identity and employment eligibility of any person employed by the organization. The U.S. Citizenship and Immigration Service (USCIS), formerly Immigration and Naturalization Services (INS), is responsible for the documentation of alien employment authorization, for Form I-9 itself, and for the E-Verify employment eligibility verification program. Since 2002, it has been a part of the U.S. Department of Homeland Security (H.R. 5005).