Pure Food and Drug Act
The 1906 Act paved the way for the eventual creation of the Food and Drug Administration (FDA) and is generally considered to be that agency's founding date, though the agency existed before the law was passed and was not named FDA until later. "While the Food and Drug act remains a foundational law of the FDA mission, it's not the law that created the FDA. [Initially,] the Bureau of Chemistry (the precursor to the FDA) regulated food safety. In 1927, the Bureau was reorganized into the Food, Drug, and Insecticide Administration and the Bureau of Chemistry and Soils. The FDIA was renamed the FDA in 1930."
Health departments in the United States
At the national level, a simple National Board of Health functioned from 1879–1883. Not until 1939 was another federal agency established to manage public health on a national level. It went through several iterations a federal agency called the Federal Security Agency that had health functions such as the United States Public Health Service (PHS), and the United States Food and Drug Administration (FDA). In 1953, that agency was reorganized and its health functions were elevated to a cabinet-level position to establish the United States Department of Health, Education and Welfare (HEW), which was renamed in 1980 to become the current and modern United States Department of Health and Human Services (HHS).