Final answer:
Meat inspected by the USDA must have a USDA inspection stamp, which signifies compliance with federal standards established by the Meat Inspection Act of 1906.
Step-by-step explanation:
Meat inspected by the U.S. Dept. of Agriculture must have a USDA inspection stamp. The Meat Inspection Act of 1906 set the standards for animal slaughter and processing under sanitary conditions. The USDA inspection stamp is a mark of compliance with these federal standards, indicating that the meat product has been properly inspected and meets the necessary safety and quality requirements.
Furthermore, the Pure Food and Drug Act, also passed in 1906, supports the regulation of consumer products for purity, effectiveness, and truthful labeling, which includes the meatpacking industry.