The Hmong Veterans' Naturalization Act of 2000 is legislation which granted Hmong and ethnic Laotian veterans, who were legal refugee aliens in the US from the communist Lao government, and who also served in U.S.-backed guerrilla, or US special forces-backed units in Laos, during the Vietnam War, "an exemption from the English language requirement and special consideration for civics testing for certain refugees from Laos applying for naturalization." The initial Act gave these alien veterans eighteen months since the day of the bill's passage by the U.S. Congress, and its signature by the President of the United States, to file a naturalization application for honorary U.S. citizenship. However, the Act was later amended by additional legislation passed by the United States Congress which extended the N-400 filing date by an additional 18 months.