<Tr> <Th_colspan="2"> United States Supreme Court cases </Th> </Tr> <Tr> <Td_colspan="2"> United States v. Johnson (1911) </Td> </Tr> <P> The Pure Food and Drug Act of 1906 was the first of a series of significant consumer protection laws which was enacted by Congress in the 20th century and led to the creation of the Food and Drug Administration . Its main purpose was to ban foreign and interstate traffic in adulterated or mislabeled food and drug products, and it directed the U.S. Bureau of Chemistry to inspect products and refer offenders to prosecutors . It required that active ingredients be placed on the label of a drug's packaging and that drugs could not fall below purity levels established by the United States Pharmacopeia or the National Formulary . The Jungle by Upton Sinclair was an inspirational piece that kept the public's attention on the important issue of unsanitary meat processing plants that later led to food inspection legislation . </P> <P> The Pure Food and Drug Act of 1906 was a key piece of Progressive Era legislation, signed by President Theodore Roosevelt on the same day as the Federal Meat Inspection Act . Enforcement of the Pure Food and Drug Act was assigned to the Bureau of Chemistry in the U.S. Department of Agriculture which was renamed the U.S. Food and Drug Administration (FDA) in 1930 . The Meat Inspection Act was assigned to what is now known as the Food Safety and Inspection Service that remains in the U.S. Department of Agriculture . The first federal law regulating foods and drugs, the 1906 Act's reach was limited to foods and drugs moving in interstate commerce . Although the law drew upon many precedents, provisions, and legal experiments pioneered in individual states, the federal law defined "misbranding" and "adulteration" for the first time and prescribed penalties for each . The law recognized the U.S. Pharmacopeia and the National Formulary as standards authorities for drugs, but made no similar provision for federal food standards . The law was principally a "truth in labeling" law designed to raise standards in the food and drug industries and protect the reputations and pocketbooks of honest businessmen . </P>

What was the purpose of the pure food and drug act