USDA APHIS regulates the importation of meat-and-bone meal due to TSE (including BSE) concerns. Admissibility depends on the source country's animal-disease status and the species of origin. Importers must obtain APHIS permits and comply with any applicable restrictions before the product can enter US commerce.

Fishmeal under 230120 is the solid residue — dried and ground — remaining after oil extraction or cooking of fish and seafood. Fish oil is separately classified under the fats and oils chapter. Fish extracts and solubles used as food ingredients fall under different headings depending on their form and intended use, so the physical state and processing method are the key classification factors.