This compliance guideline from FSIS Compliance Guideline states that meat and poultry products tested for adulterants, such as Listeria monocytogenes and Salmonella, must not enter commerce while testing is underway. This implies that producers are required to maintain control of the lot until negative test results are confirmed. The guideline provides detailed instructions for establishments to hold or control products during testing, determine lot sizes, and ensure compliance with FSIS requirements. It also outlines procedures for managing products that test positive, including corrective actions to prevent contaminated products from reaching consumers. Note USDA may update at any point so if this link doesn't work or a newer guideline get's published don't hesitate to let us know.
The draft guidance titled "Control of Listeria monocytogenes in Ready-To-Eat Foods" by the FDA provides recommendations for minimizing or preventing the contamination of ready-to-eat (RTE) foods with Listeria monocytogenes. It outlines the current good manufacturing practices, hazard analysis, and risk-based preventive controls as per 21 CFR part 117. The guidance is designed for manufacturers, processors, packers, or holders of RTE foods who must comply with these regulations. It includes comprehensive measures, such as controls on personnel, plant design and operation, equipment maintenance, sanitation, raw material controls, process control, storage practices, transportation, environmental monitoring, and sampling and testing of RTE foods.