85–172, as amended) requires the United States Department of Agriculture's Food Safety and Inspection Service (FSIS) to inspect all domesticated birds when slaughtered and processed into products for human consumption.

By regulation, FSIS has defined domesticated birds as chickens, turkeys, ducks, geese, and guinea fowl.

[1] The primary goals of the law are to prevent adulterated or misbranded poultry and products from being sold as food, and to ensure that poultry and poultry products are slaughtered and processed under sanitary conditions.

These requirements also apply to products produced and sold within states as well as to imports, which must be inspected under equivalent foreign standards (21 U.S.C.

U.S. Congressional amendments to the Poultry Products Inspection Act of 1957.