Animal Guts, Bladders, and Stomachs (Excluding Fish), Whole or in Pieces

The US schedule separates guts and intestines destined for sausage casing use (0504000020 for hog; 0504000040 for other species) from those imported for other purposes such as direct consumption as tripe or offal (e.g., 0504000050 for frozen beef tripe, 0504000070 for frozen beef intestines, 0504000080 for frozen pork intestines). The importer's declared intended use, supported by commercial documentation, determines which line applies — and misclassification between casing and non-casing lines is a known audit risk.

All animal guts, bladders, and stomachs covered by 050400 are meat byproducts subject to USDA FSIS jurisdiction. Shipments must originate from an FSIS-eligible foreign country and an approved foreign establishment, be accompanied by a foreign government inspection certificate, and undergo FSIS reinspection at a designated US port of entry. Importers should verify that the foreign establishment's FSIS approval covers the specific product type being imported. Consult a licensed customs broker or FSIS for current admissibility requirements.