Under this act, all women acquired their husband's nationality upon any marriage occurring after that date. This meant that U.S.-born citizen women could now lose their citizenship upon marriage to any alien. They were, however, able to regain their U.S. citizenship when said alien husbands naturalized, unless they married Chinese, Japanese, or other men racially ineligible to become naturalized citizens. Additionally, because the husband's nationality now determined that of the wife, a married woman could no longer legally file for naturalization under her own right.
Congress levied a head tax of $8 for every alien entering the United States, with the exception of children under the age of sixteen accompanying their mother or father. It also denied entry to immigrants from what was called the Asiatic Barred Zone, "any country not owned by the U.S. adjacent to the continent of Asia" (including much of Asia and the Pacific Islands), as well as banning entry for certain 'undesirables,' including, among others, idiots, feeble-minded persons epileptics, paupers, alcoholics, convicts, polygamists, and anyone with a physical or mental defect that might impair their ability to earn a living. Prostitutes and anyone involved in or with prostitution were also restricted from immigration under this act. Children under the age of sixteen were not allowed to enter unless accompanied by a parent, or somehow otherwise able to demonstrate that they were not likely to become a public charge. Individuals who did not pay for their own tickets came under extra scrutiny.