The USDA Poultry Products Inspection Act was enacted in 1957. This established that all birds slaughtered and put into human food production must be inspected. This ensured that the meat sold to the consumer has been slaughtered in sanitary conditions, properly packaged, and labeled. These inspections are part of the processing facilities daily routine. Every animal is inspected to ensure it is free of disease. This is done to prevent contamination of all meat being processed within the plant. The waste disposal is also strictly monitored.