"Federal assistance targeted to homeless individuals and families was largely nonexistent prior to the mid-1980s. Although the Runaway and Homeless Youth program was enacted in 1974 as part of the Juvenile Justice and Delinquency Prevention Act (P.L. 93-415), the first federal program focused on assisting all homeless people, no matter their age, was the Emergency Food and Shelter (EFS) program, established in 1983 through an emergency jobs appropriation bill (P.L. 98-8). The EFS program was and continues to be administered by the Federal Emergency Management Agency (FEMA) in the Department of Homeland Security (DHS) to provide emergency food and shelter to needy individuals."
CRS Report for Congress, RL30442
Congressional Research Service: https://crsreports.congress.gov/