Section 01 LIVE ANIMALS; ANIMAL PRODUCTS. 03 FISH AND CRUSTACEANS, MOLLUSCS AND OTHER AQUATIC INVERTEBRATES. 03 03 FISH, FROZEN, EXCLUDING FISH FILLETS AND OTHER FISH MEAT OF HEADING 0304 03 03 46 SOUTHERN BLUEFIN TUNAS (THUNNUS MACCOYII), FROZEN Commodity Code Description 03 03 46 00 SOUTHERN BLUEFIN TUNAS (THUNNUS MACCOYII), FROZEN