On August 3, 1882, Congress passed the first federal law regulating immigration. Under the statute, state-run boards under contract to the US Secretary of the Treasury were to inspect immigrants according to rules that were uniform in all ports. Boards were prohibited from admitting any immigrant found to be a “convict, lunatic, idiot or any person unable to take care of him or herself without becoming a public charge.”
Learn more about eugenics laws restricting immigration.