The United States Congress passes the Meat Inspection Act and Pure Food and Drug Act.

The Federal Meat Inspection Act of 1906 (FMIA) is an American law that makes it illegal to adulterate or misbrand meat and meat products being sold as food, and ensures that meat and meat products are slaughtered and processed under strictly regulated sanitary conditions. These requirements also apply to imported meat products, which must be inspected under equivalent foreign standards. United States Department of Agriculture (USDA) inspection of poultry was added by the Poultry Products Inspection Act of 1957 (PPIA). The Food, Drug, and Cosmetic Act authorizes the Food and Drug Administration (FDA) to provide inspection services for all livestock and poultry species not listed in the FMIA or PPIA, including venison and buffalo. The Agricultural Marketing Act authorizes the USDA to offer voluntary, fee-for-service inspection services for these same species.

The Pure Food and Drug Act of 1906 was the first of a series of significant consumer protection laws enacted by the United States Congress, and led to the creation of the Food and Drug Administration (FDA). Its main purpose was to ban foreign and interstate traffic in adulterated or mislabeled food and drug products, and it directed the US Department of Agriculture's (USDA) 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. This law is also known as the Wiley Act and Dr. Wiley's Law for USDA Chief Chemistry Harvey Washington Wiley's advocacy for its passage.