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."
Drug Enforcement Administration
The Drug Enforcement Administration was established on July 1, 1973, by Reorganization Plan No. 2 of 1973, signed by President Richard Nixon on July 28. It proposed the creation of a single federal agency to enforce the federal drug laws as well as consolidate and coordinate the government's drug control activities. Congress accepted the proposal, as they were concerned with the growing availability of drugs. As a result, the Bureau of Narcotics and Dangerous Drugs (BNDD), the Office of Drug Abuse Law Enforcement (ODALE); approximately 600 Special Agents of the Bureau of Customs, Customs Agency Service, and other federal offices merged to create the DEA.