https://www.gs1.org/standards/traceability/guideline/gs1-global-meat-and-poultry-traceability-guideline-part-4-pork-supply-chainGS1 Global Meat and Poultry Traceability Guideline, Part 4. Pork Supply Chain
GS1 Global Meat and Poultry Traceability Guideline, Part 4. Pork Supply Chain